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Aon plc

For the period ended Dec 31, 2025. Filed Feb 13, 2026.

View on SEC.gov

About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 13, 2026

AON$334.81-2.8%Stored close · as of Nov 6, 2026

What changed in Risk Factors?

Read the current filing

Previous report: 10-K

Period ended 2024-12-31; filed 2025-02-18.

0001628280-25-006093

Item 1A. Risk Factors

Current report: 10-K

Period ended 2025-12-31; filed 2026-02-13.

0001628280-26-008116

Item 1A. Risk Factors

The baseline is this issuer’s latest earlier reporting period of the same form that was filed before the current report. A previous 10-Q is a different quarter, not a year-over-year comparison. Amendments are excluded.

Compared 177 previous paragraphs and 173 current paragraphs.

119 unchanged; 50 reworded; 4 added; 8 removed; 0 previous and 0 current paragraphs rearranged.

Tables are not compared: 0 previous and 0 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.

A changed paragraph is not evidence that risk increased or decreased. An unchanged paragraph does not establish that risk stayed the same.

Added paragraphs (4)

Current report

•Regulation in the areas of data privacy, data protection, data management, data transfer, data localization, artificial intelligence, and cybersecurity could increase our costs and affect or limit our business opportunities.

Current report

•difficulties in transitioning operations from one country to another without interruption or reduction in the quality of those operations;

Current report

•attracting, identifying and retaining qualified personnel in the countries in which we operate;

Current report

Regulation in the areas of data privacy, data protection, data management, data transfer, data localization, artificial intelligence, and cybersecurity could increase our costs and affect or limit our business opportunities.
Removed paragraphs (8)

Previous report

Risks Related to the Acquisition of NFP

Previous report

•We may not be able to integrate the NFP business successfully or manage the combined business effectively, and many of the anticipated synergies and other benefits may not be realized or may not be realized within the expected time frame.

Previous report

•We have incurred and may continue to incur significant integration-related costs in connection with the acquisition of NFP.

Previous report

Risks Related to the Acquisition of NFP

Previous report

We may not be able to integrate the NFP business successfully or manage the combined business effectively, and many of the anticipated synergies and other benefits of acquiring NFP may not be realized or may not be realized within the expected time frame.

Previous report

We have devoted management attention and resources to integrating our and NFP's business practices so that we can fully realize the anticipated benefits of the NFP acquisition. Nonetheless, the business and assets acquired may not be successful or may require greater resources and investments than originally anticipated. Further, it is possible that the integration process could take longer than anticipated or that the management of the combined organizations and achievement of anticipated synergies could be more difficult than expected. The integration of NFP into our organization could also result in the disruption of ongoing businesses, processes, systems and business relationships or inconsistencies in standards, controls, procedures, practices, policies and compensation arrangements, any of which could adversely affect Aon’s ability to achieve the anticipated benefits of the NFP acquisition or otherwise negatively impact our business. The integration process is subject to a number of risks and uncertainties, and no assurance can be given that the anticipated benefits of the acquisition will be realized or, if realized, the timing of their realization. Failure to achieve these anticipated benefits could adversely affect Aon’s future businesses, financial condition, results of operations and prospects.

Previous report

We have incurred and may continue to incur significant integration-related costs in connection with the acquisition of NFP.

Previous report

Aon has incurred and expects to continue to incur a number of non-recurring costs associated with the NFP acquisition and combining the operations of the two companies, which could adversely affect Aon’s ability to execute its integration plan and achieve the anticipated benefits of the NFP acquisition. Although Aon expects that the elimination of duplicative costs, as well as the realization of other efficiencies related to the integration of the businesses of Aon and NFP, should allow Aon to offset integration-related costs over time, this net benefit may not be achieved in the near term or at all.
Reworded paragraphs (50)

Previous wording

The results of our operations are generally affected by the level of business activity of our clients, which in turn is affected by the economy of the industries and markets these clients serve. Economic downturns, volatility, or uncertainty in the broader economy or in specific markets (including as a result of endemics or pandemics, climate change, political unrest, actions by central banks, or otherwise) have caused in the past and may in the future cause reductions in technology and discretionary spending by our clients, which may result in reductions in the growth of new business or reductions in existing business. If our clients become financially less stable, enter bankruptcy, liquidate their operations or consolidate, our revenues and collectability of receivables could be adversely affected.

Current wording

The results of our operations are generally affected by the level of business activity of our clients, which in turn is affected by the economy of the industries and markets these clients serve. Economic downturns, volatility, or uncertainty in the broader economy or in specific markets (including as a result of endemics or pandemics, climate change, political unrest, actions by governments and central banks, or otherwise) have caused in the past and may in the future cause reductions in technology and discretionary spending by our clients, which may result in reductions in the growth of new business or reductions in existing business. If our clients become financially less stable, enter bankruptcy, liquidate their operations or consolidate, our revenues and collectability of receivables could be adversely affected.

Previous wording

The demand for property and casualty insurance generally rises as the overall level of economic activity increases and generally falls as such activity decreases, affecting both the commissions and fees generated by our Risk Capital segment. The economic activity that impacts property and casualty insurance is most closely correlated with employment levels, corporate revenues, and asset values. Downward fluctuations in the year-over-year insurance premiums charged by insurers to protect against the same risk, referred to in the industry as softening of the insurance market, could adversely affect these businesses as a significant portion of the revenue is determined as a percentage of premiums charged to our clients. In addition, certain discretionary services within our business, such as our talent advisory services, project-related work within our Commercial Risk, Health, and Wealth solution lines, and transaction services, may see a decrease in activity if the overall level of economic activity results in a reduction to our clients’ discretionary spending. Insolvencies and consolidations associated with an economic downturn, especially insolvencies in the insurance industry, could adversely affect our brokerage business through the loss of clients by hampering our ability to place insurance and reinsurance business. Also, error and omission claims against us, which we refer to as E&O claims, may increase in economic downturns or due to other natural or human-caused disasters, also adversely affecting our business. In addition, decreased underwriting capacity for insurance and reinsurance may create difficulty for our professionals to place business, which may adversely impact our ability to earn revenue.

Current wording

The demand for property and casualty insurance generally rises as the overall level of economic activity increases and generally falls as such activity decreases, affecting both the commissions and fees generated by our Risk Capital segment. The economic activity that impacts property and casualty insurance is most closely correlated with employment levels, corporate revenues, and asset values. Downward fluctuations in the year-over-year insurance premiums charged by insurers to protect against the same risk, referred to in the industry as softening of the insurance market, has and could adversely affect these businesses as a significant portion of our revenue is determined as a percentage of premiums charged to our clients. In addition, certain discretionary services within our business, such as our talent advisory services, project-related work within our Commercial Risk, Health, and Wealth solution lines, and transaction services, may see a decrease in activity if the overall level of economic activity results in a reduction to our clients’ discretionary spending. Insolvencies and consolidations associated with an economic downturn, especially insolvencies in the insurance industry, could adversely affect our brokerage business through the loss of clients by hampering our ability to place insurance and reinsurance business. Also, error and omission claims against us, which we refer to as E&O claims, may increase in economic downturns or due to natural or human-caused disasters, also adversely affecting our business. In addition, decreased underwriting capacity for insurance and reinsurance may create difficulty for our professionals to place business, which may adversely impact our ability to earn revenue.

Previous wording

As a global professional services firm, we compete with a broad variety of firms, including global, national, regional, and local insurance companies that market and service their own products, other financial services providers, brokers, and investment managers, independent firms, and consulting organizations affiliated with accounting, information systems, technology and human resources consulting. We compete with respect to service, delivery of insights, product features, price, commission structure, technology, financial strength, ability to access certain insurance markets, and name recognition. Our competitors may have better financial, technical and marketing resources, broader customer bases, greater name recognition, more comprehensive products, stronger presence in certain geographies, or more established relationships with their customers and suppliers than we have.

Current wording

As a global professional services firm, we compete with a broad variety of firms, including global, national, regional, and local insurance companies that market and service their own products, other financial services providers, brokers, and investment managers, independent firms, and consulting organizations affiliated with accounting, information systems, technology, and human resources consulting firms. We compete with respect to service, delivery of insights, product features, price, commission structure, technology, financial strength, ability to access certain insurance markets, and name recognition. Our competitors may have better financial, technical and marketing resources, broader customer bases, greater name recognition, more comprehensive products, stronger presence in certain geographies, or more established relationships with their customers and suppliers than we have.

Previous wording

Alliances or mergers among competitors could affect our business. Further, we compete on pricing and the innovation and quality of our service offerings, which could be affected by competitors’ lower cost structures, product development activities, and pricing policies, any or all of which could result in better market acceptance of our competitors’ offerings than those that we offer or develop.

Current wording

Alliances or mergers among competitors could also affect our business. Further, we compete on pricing and the innovation and quality of our service offerings, which could be affected by competitors’ lower cost structures, product development activities, and pricing policies, any or all of which could result in better market acceptance of our competitors’ offerings than those that we offer or develop.

Previous wording

Developing and implementing innovative strategies, efficient business practices, and new solutions to current and emerging client needs is important to our business. We may be unsuccessful in developing innovative strategies, or our competitors may be more successful in innovating and delivering services to meet new and existing client needs. Competitors may be able to innovate faster and respond better to evolving client demand and industry conditions, or may price their products in a manner that clients find more attractive than Aon’s offerings. Further, new and non- traditional competitors, our clients’ increasing ability and determination to self-insure, and capital market alternatives to traditional insurance and reinsurance markets cause additional forms of competition and innovation that could affect our business. If we are unsuccessful in innovating, if we cannot innovate as quickly as our competitors, if we are not able to make sufficient investment in innovation, if our competitors develop more cost-effective technologies (including through the use of artificial intelligence or other emerging technologies), or if our ideas are not accepted in the marketplace, it could have a material adverse effect on our ability to obtain and complete client engagements.

Current wording

Developing and implementing innovative strategies, efficient business practices, and new solutions to current and emerging client needs is important to our business. We may be unsuccessful in developing innovative strategies, or our competitors may be more successful in innovating and delivering services to meet new and existing client needs. Competitors may be able to innovate faster and respond better to evolving client demand and industry conditions, or may price their products in a more attractive manner. Further, new and non- traditional competitors (including “InsurTech” firms utilizing artificial intelligence or other advanced technologies), our clients’ increasing ability and determination to self-insure, and capital market alternatives to traditional insurance and reinsurance markets create an even more dynamic, competitive, and innovative market environment that could affect our business. If we are unsuccessful in innovating, if we cannot innovate as quickly as our competitors, if we are not able to make sufficient investment in innovation, if new or existing competitors develop more cost-effective or efficient technologies or cause disintermediation (including through the use of artificial intelligence or other emerging technologies), or if our ideas are not accepted in the marketplace, it could have a material adverse effect on our ability to obtain and complete client engagements or on our financial condition and results of operations.

Previous wording

For example, we have invested significantly in Aon Business Services and the development of proprietary data and analytics tools including repositories of our global insurance and reinsurance placement information, which we use to help drive results for our clients in the insurance and reinsurance placement process. Our competitors have or are developing competing data and analytics tools, and their success in this space may impact our ability to differentiate our own data and analytics tools. Innovations in software, cloud computing, data and analytics, generative artificial intelligence, or other technologies that alter how our services are delivered could significantly undermine our investment in the business if we are slow to innovate or unable to take advantage of these developments.

Current wording

For example, we have invested significantly in Aon Business Services and the development of proprietary data and analytics tools including repositories of our global insurance and reinsurance placement information, which we use to help drive results for our clients in the insurance and reinsurance placement process. Our competitors have developed or are developing competing data and analytics tools, and their success in this space may impact our ability to differentiate our own data and analytics tools. Innovations in software, cloud computing, data and analytics, generative and agentic artificial intelligence, or other technologies that alter how our services are delivered could significantly undermine our investment in the business if we are slow to innovate or unable to take advantage of these developments.

Previous wording

In addition, innovation in the technology we leverage in our products and business processes, our capabilities, the sources of capital for our clients’ insurance and reinsurance needs, and the entry into new lines of business, services, or products require significant investment and present additional risks to our business, particularly in instances where the technologies and markets are new or developing or where we are new participants in such markets. Such risks include the investment of significant time and resources; the possibility that these efforts will not be successful and could result in reputational damage to us; the possibility that the marketplace does not accept our products or services or that we are unable to retain clients that adopt our new products or services; and the risk of new or additional liabilities associated with these efforts, including potential E&O or other claims. For example, we continue to invest in artificial intelligence, particularly in generative artificial intelligence tools, and have developed governance and oversight measures regarding its use. Certain use cases of artificial intelligence in our business processes could pose operational, legal or reputational risks where there may be incorrect outputs or bias in those systems or processes, or where there is inadequate human oversight.

Current wording

In addition, innovation in the technology we leverage in our products and business processes, our capabilities, the sources of capital for our clients’ insurance and reinsurance needs, and the entry into new lines of business, services, or products require significant investment and present additional risks to our business, particularly in instances where the technologies and markets are new or developing or where we are new participants in such markets. Such risks include without limitation the investment of significant time and resources; the possibility that these efforts will not be successful or result in reputational damage to us; the possibility that the marketplace does not accept our products or services or that we are unable to retain clients that adopt our new products or services; the risk that our governance process and controls in these new areas may not be effective or consistent with legal, regulatory, or client requirements or expectations and the risk of new or additional liabilities associated with these efforts, including potential E&O or other claims. For example, we continue to invest in artificial intelligence, particularly in generative artificial intelligence tools, and maintain governance and oversight measures regarding its use. Certain use cases of artificial intelligence in our business processes could pose strategic, operational, legal, ethical, regulatory or reputational risks where there may be incorrect outputs or bias in those systems or processes, potential infringement of intellectual property rights, exposure of proprietary or personal information, heightened cybersecurity risks and challenges in safely deploying, governing or controlling artificial intelligence systems or where there is inadequate human oversight.

Previous wording

The nature of much of our work involves assumptions and estimates concerning future events, the actual outcome of which we cannot know with certainty in advance. For example, in our investment businesses, we may be measured based on our track record regarding judgments and advice on investments that are susceptible to influences unknown at the time the advice was given. In addition, we could make computational, software programming, or data entry or management errors. A client may claim it suffered losses due to reliance on our consulting advice, analysis, or reporting, which poses risks of liability exposure and costs of defense and increased insurance premiums. Many of our clients are businesses that actively share information among themselves about the quality of service they receive from their vendors. Adverse statements or claims from clients (including clients in the public sector or whose activities are frequently covered by the press) may receive media attention or other publicity. Accordingly, poor service to, or the adverse opinion of, one client may negatively impact our relationships with multiple other clients.

Current wording

The nature of much of our work involves assumptions and estimates concerning future events, the actual outcome of which we cannot know with certainty in advance. For example, in our investment businesses, we may be measured based on our track record regarding judgments and advice on investments that are susceptible to influences unknown at the time the advice was given. In addition, we could make computational, software programming, or data entry or management errors. Clients have claimed and may in the future claim they have suffered losses due to reliance on our consulting advice, analysis, or reporting, which poses risks of liability exposure and costs of defense and increased insurance premiums. Many of our clients are businesses that actively share information among themselves about the quality of service they receive from their vendors. Adverse statements or claims from clients (including clients in the public sector or whose activities are frequently covered by the press) may receive media attention or other publicity. Accordingly, poor service to, or the adverse opinion of, one client may negatively impact our relationships with multiple other clients.

Previous wording

We advise our clients on and provide services related to a wide range of subjects and our ability to attract and retain clients is highly dependent upon the external perceptions of our level of service, trustworthiness, business practices, financial condition, and other subjective qualities. Negative perceptions or publicity regarding these matters or others could erode trust and confidence and damage our reputation among existing and potential clients and existing and future employees, which could make it difficult for us to attract new clients and employees and retain existing ones. Negative public opinion could also result from actual or alleged conduct by us or those currently or formerly associated with us. Damage to our reputation, including as a result of negative perceptions or publicity regarding a class of business, environmental matters, climate change, workforce make-up, pay equity, harassment, social justice, cyber security, data privacy and data protection, use of artificial intelligence or innovative technology, or our inability to meet commitments or client and stakeholder expectations with respect to such matters, could affect the confidence of our clients, rating agencies, regulators, stockholders, employees and third parties in transactions that are important to our business adversely affecting our business, financial condition, and operating results.

Current wording

We advise our clients on and provide services related to a wide range of subjects and our ability to attract and retain clients is highly dependent upon the external perceptions of our level of service, trustworthiness, business practices, financial condition, and other subjective qualities. Negative perceptions or publicity regarding these matters or others could erode trust and confidence and damage our reputation among existing and potential clients and existing and future employees, which could make it difficult for us to attract new clients and employees and retain existing ones. Negative public opinion could also result from actual or alleged conduct by us or those currently or formerly associated with us. Damage to our reputation, including as a result of negative perceptions or publicity regarding a particular business partner, class of business, environmental matters, climate change, workforce make-up, pay equity, harassment, social justice, cybersecurity, data privacy and data protection, use of artificial intelligence or innovative technology, or our inability to meet commitments or client and stakeholder expectations with respect to such matters, could affect the confidence of our clients, rating agencies, regulators, stockholders, employees and third parties in transactions that are important to our business adversely affecting our business, financial condition, and operating results.

Previous wording

Revenues from commission arrangements have historically been affected by significant fluctuations arising from uncertainties and changes in the industries in which we operate. A significant portion of our revenue consists of commissions paid to us out of the premiums that insurers and reinsurers charge our clients for coverage. We have no control over premium rates, and our revenues and profitability are subject to change to the extent that premium rates fluctuate or trend in a particular direction. The potential for changes in premium rates is significant, due to pricing cyclicality in the commercial insurance and reinsurance markets.

Current wording

Revenues from commission arrangements have historically been affected by significant fluctuations arising from uncertainties and changes in the industries in which we operate. A significant portion of our revenue consists of commissions paid to us out of the premiums that insurers and reinsurers charge our clients for coverage. We have no control over premium rates, and our revenues and profitability are subject to change to the extent that premium rates fluctuate or trend in a particular direction. The potential for changes in premium rates is significant, due to pricing cyclicality in the insurance and reinsurance markets.

Previous wording

In addition to movements in premium rates, our ability to generate premium-based commission revenue may be challenged by:

Current wording

In addition to movements in premium rates, our ability to generate premium-based commission revenue has been and could in the future be challenged by:

Previous wording

•the growing number of technology-enabled competitors offering new risk-transfer solutions that eliminate the traditional broker-client relationship in both commercial insurance and reinsurance markets.

Current wording

•the growing number of technology-enabled competitors offering new risk-transfer solutions that eliminate the traditional broker-client relationship in both insurance and reinsurance markets.

Previous wording

Our profitability is highly dependent upon our ability to control our costs and improve our efficiency. As we adapt to changes in our business and the market, adapt to the regulatory environment, enter into new engagements, acquire additional businesses, and take on new employees in new locations, we may not be able to manage our large, diverse and changing workforce, effectively control our costs, or improve our efficiency.

Current wording

Our profitability is highly dependent upon our ability to control our costs and improve our efficiency. As we adapt to changes in our business and the market, adapt to the regulatory environment, enter into new engagements, acquire additional businesses, and take on new employees in new locations, we may not be able to manage our large, changing workforce, effectively control our costs, or improve our efficiency.

Previous wording

We face exposure to adverse movements in exchange rates of currencies other than our reporting currency, the U.S. dollar, as a significant portion of our business is located outside of the U.S. These exposures may change over time, and they could have a material adverse impact on our financial results and cash flows. Appro ximately 51.2% of our consolidated revenue is non-U.S., attributed on the basis of where the services are performed, and where products are sold, and the exposures created can have significant currency volatility. These currency exchange fluctuations create risk in both the translation of the financial results of our global subsidiaries into U.S. dollars for our consolidated financial statements, as well as in those of our operations that receive revenue and incur expenses other than in their respective local currencies, which can reduce the profitability of our operations based on the direction the respective currencies’ exchange rates move. A decrease in the value of certain currencies relative to other currencies could place us at a relative disadvantage compared to our competitors that benefit to a greater degree from a specific exchange rate move and can, as a result, deliver services at a lower cost or receive greater revenues from such a transaction. Although we use various derivative financial instruments to limit the impact of foreign exchange rate fluctuations, we cannot eliminate such risks, and, as a result, changes in exchange rates may adversely affect our results. For example, the strengthening of the value of the U.S. dollar versus other currencies may adversely affect the value of our products and services when translated to U.S. dollar, even if the value of such products and services has not changed in their original currency.

Current wording

We face exposure to adverse movements in exchange rates of currencies other than our reporting currency, the U.S. dollar, as a significant portion of our business is located outside of the U.S. These exposures may change over time, and they could have a material adverse impact on our financial results and cash flows. Appro ximately 51.8% of our consolidated revenue is non-U.S., attributed on the basis of where the services are performed, and where products are sold, and the exposures created can have significant currency volatility. These currency exchange fluctuations create risk in both the translation of the financial results of our global subsidiaries into U.S. dollars for our consolidated financial statements, as well as in those of our operations that receive revenue and incur expenses other than in their respective local currencies, which can reduce the profitability of our operations based on the direction the respective currencies’ exchange rates move. A decrease in the value of certain currencies relative to other currencies could place us at a relative disadvantage compared to our competitors that benefit to a greater degree from a specific exchange rate move and can, as a result, deliver services at a lower cost or receive greater revenues from such a transaction. Although we use various derivative financial instruments to limit the impact of foreign exchange rate fluctuations, we cannot eliminate such risks, and, as a result, changes in exchange rates may adversely affect our results. For example, the strengthening of the value of the U.S. dollar versus other currencies may adversely affect the value of our products and services when translated to U.S. dollar, even if the value of such products and services has not changed in their original currency.

Previous wording

Operating funds available for corporate use were $1.3 billion at December 31, 2024 and are reported in Cash and cash equivalents and Short-term investments. Of the total balance, $123 million was restricted to its use as of December 31, 2024. Funds held on behalf of clients and insurers were $7.2 billion at December 31, 2024 and are reported in Fiduciary assets. We also carry an investment portfolio of other long-term investments. As of December 31, 2024, these long-term investments had a carrying value of $90 million. Adverse changes in interest rates, performance, and counterparty credit quality, including default, could reduce the value of these funds and investments, thereby adversely affecting our financial condition or results. We may experience reduced investment earnings on our cash and short-term investments of fiduciary and operating funds if the yields on investments deemed to be low risk fall below their current levels, or if negative yields on deposits or investments are experienced, as we have experienced in Japan and certain jurisdictions in the E.U. On the other hand, higher interest rates could result in a higher discount rate used by investors to value our future cash flows thereby resulting in a lower valuation of the Company. In addition, during times of stress in the banking industry, counterparty risk can quickly escalate, potentially resulting in substantial losses for us as a result of our cash or other investments with such counterparties, as well as substantial losses for our clients and the insurance companies with which we work.

Current wording

Operating funds available for corporate use were $2.8 billion at December 31, 2025 and are reported in Cash and cash equivalents and Short-term investments. Of the total balance, $180 million was restricted to its use as of December 31, 2025. Funds held on behalf of clients and insurers were $7.4 billion at December 31, 2025 and are reported in Fiduciary assets. We also carry an investment portfolio of other long-term investments. As of December 31, 2025, these long-term investments had a carrying value of $192 million. Adverse changes in interest rates, performance, and counterparty credit quality, including default, could reduce the value of these funds and investments, thereby adversely affecting our financial condition or results. We may experience reduced investment earnings on our cash and short-term investments of fiduciary and operating funds if the yields on investments deemed to be low risk fall below their current levels, or if negative yields on deposits or investments are experienced, as we have experienced in Japan and certain jurisdictions in the E.U. On the other hand, higher interest rates could result in a higher discount rate used by investors to value our future cash flows thereby resulting in a lower valuation of the Company. In addition, during times of stress in the banking industry, counterparty risk can quickly escalate, potentially resulting in substantial losses for us as a result of our cash or other investments with such counterparties, as well as substantial losses for our clients and the insurance companies with which we work.

Previous wording

As of December 31, 2024, we had total consolidated debt outstanding of approxim ately $17.0 billion. The level of debt outstanding could adversely affect our financial flexibility by reducing our ability to use cash from operations for other purposes, including working capital, dividends to shareholders, share repurchases, acquisitions, capital expenditures and general corporate purposes. We also are subject to risks that, at the time any of our outstanding debt matures, we will not be able to retire or refinance the debt on terms that are acceptable to us, or at all.

Current wording

As of December 31, 2025, we had total consolidated debt outstanding of approxim ately $15.2 billion. The level of debt outstanding could adversely affect our financial flexibility by reducing our ability to use cash from operations for other purposes, including working capital, dividends to shareholders, share repurchases, acquisitions, capital expenditures and general corporate purposes. We also are subject to risks that, at the time any of our outstanding debt matures, we will not be able to retire or refinance the debt on terms that are acceptable to us, or at all.

Previous wording

As of December 31, 2024, we had two primary committed credit facilities outstanding, as well as a delayed draw term loan. The credit facilities are intended to support our commercial paper obligations and our general working capital needs, and the delayed draw term loan was drawn upon in full in April 2024 to support the acquisition of NFP. In addition, each of our committed credit facilities and the term loan included customary representations, warranties, and covenants, including financial covenants that require us to maintain specified ratios of adjusted consolidated EBITDA to consolidated interest expense and consolidated debt to adjusted consolidated EBITDA, tested quarterly.

Current wording

As of December 31, 2025, we had two primary committed credit facilities outstanding. The credit facilities are intended to support our commercial paper obligations and our general working capital needs. In addition, each of our committed credit facilities included customary representations, warranties, and covenants, including financial covenants that require us to maintain specified ratios of adjusted consolidated EBITDA to consolidated interest expense and consolidated debt to adjusted consolidated EBITDA, tested quarterly.

Previous wording

A substantial portion of our outstanding debt, including certain intercompany debt obligations, contains financial and other covenants. The terms of these covenants may limit our ability to obtain, or increase the costs of obtaining, additional financing to fund working capital, capital expenditures, acquisitions, or general corporate requirements. This in turn may have the impact of reducing our flexibility to respond to changing business and economic conditions, thereby placing us at a relative disadvantage compared to competitors that have less indebtedness, or fewer or less onerous covenants associated with such indebtedness, and making us more vulnerable to general adverse economic and industry conditions.

Current wording

A substantial portion of our outstanding debt, including certain intercompany debt obligations, contains financial and other covenants. The terms of these covenants may limit our ability to obtain, or increase the costs of obtaining, additional financing to fund working capital, capital expenditures, acquisitions, or general corporate requirements. This in turn may impact our flexibility to respond to changing business and economic conditions, thereby placing us at a relative disadvantage compared to competitors that have less indebtedness, or fewer or less onerous covenants associated with such indebtedness, and making us more vulnerable to general adverse economic and industry conditions.

Previous wording

If we cannot service our indebtedness, we may have to take actions such as selling assets, seeking additional equity, or reducing or delaying capital expenditures, strategic acquisitions, investments, and alliances, any of which could impede the implementation of our business strategy or prevent us from entering into transactions that would otherwise benefit our business. Additionally, we may not be able to take such actions or refinance any of our debt, if necessary, on commercially reasonable terms, or at all.

Current wording

If we cannot service our indebtedness or continue to meet the terms of our financial covenants, we may have to take actions such as selling assets, seeking additional equity, or reducing or delaying capital expenditures, strategic acquisitions, investments, and alliances, any of which could impede the implementation of our business strategy or prevent us from entering into transactions that would otherwise benefit our business. Additionally, we may not be able to take such actions or refinance any of our debt, if necessary, on commercially reasonable terms, or at all.

Previous wording

A downgrade in the credit ratings of our senior debt and commercial paper could increase our borrowing costs, reduce or eliminate our access to capital, reduce our financial flexibility, and limit our ability to implement our corporate strategy. Our senior debt ratings at December 31, 2024 were A- with a negative outlook (S&P), BBB+ with a stable outlook (Fitch), and Baa2 with a stable outlook (Moody’s). Our commercial paper ratings were A-2 (S&P), F-2 (Fitch) and P-2 (Moody’s).

Current wording

A downgrade in the credit ratings of our senior debt and commercial paper could increase our borrowing costs, reduce or eliminate our access to capital, reduce our financial flexibility, and limit our ability to implement our corporate strategy. Our senior debt ratings at December 31, 2025 were A- with a stable outlook (S&P), BBB+ with a stable outlook (Fitch), and Baa2 with a positive outlook (Moody’s). Our commercial paper ratings were A-2 (S&P), F-2 (Fitch) and P-2 (Moody’s).

Previous wording

The overall tax environment in the jurisdictions in which we are or may be subject to taxes is highly uncertain and increasingly complex. In the U.S., the Inflation Reduction Act introduced, among other changes, a 1% excise tax on certain stock redemptions by U.S. corporations (which the U.S. Treasury indicated may also apply to certain stock redemptions of foreign corporations deemed funded by their U.S. affiliates). The OECD, a global coalition of member countries, proposed a plan (commonly referred to as “Pillar Two”) to reform international taxation which includes the introduction of a 15% country-by-country minimum tax on book income with specified adjustments. Ireland, the U.K., Singapore, and many E.U. member states, among others, have enacted legislation to implement the global minimum tax that is generally consistent with the OECD’s Pillar Two tax regime. Aon’s net income (generally determined under U.S. GAAP), with specified modifications and determined on a country-by-country basis, is subject to the 15% minimum tax in countries that have enacted Pillar Two, and in Ireland (Aon’s parent company location) with respect to countries that have not enacted a qualifying minimum tax under Pillar Two. There remains significant uncertainty as to how Pillar Two will ultimately apply to Aon. The OECD has issued numerous guidance documents that may change how Pillar Two operates, subject to enactment by each implementing country, and the OECD may issue additional guidance in the future. There is a risk that the global minimum tax regime could have a material adverse effect on our global effective tax rate, results of operations, cash flows and financial condition.

Current wording

The overall tax environment in the jurisdictions in which we are or may be subject to taxes is highly uncertain and increasingly complex. The OECD, a global coalition of member countries, proposed a plan (commonly referred to as “Pillar Two”) to reform international taxation which includes the introduction of a 15% country-by-country minimum tax on book income with specified adjustments. Ireland, the U.K., Singapore, and many E.U. member states, among others, have enacted legislation to implement the global minimum tax that is generally consistent with the OECD’s Pillar Two tax regime. Aon’s net income (generally determined under U.S. GAAP), with specified modifications and determined on a country-by-country basis, is subject to the 15% minimum tax in countries that have enacted Pillar Two, and in Ireland (Aon’s parent company location) with respect to countries that have not enacted a qualifying minimum tax under Pillar Two. There remains significant uncertainty as to how Pillar Two applies to Aon in prior years and how its application might change in the future. The OECD has issued numerous guidance documents that may change how Pillar Two operates, subject to enactment by each implementing country, and the OECD may issue additional guidance in the future. There is a risk that the global minimum tax regime could have a material adverse effect on our global effective tax rate, results of operations, cash flows and financial condition.

Previous wording

There can be no assurance that we would be successful in attempting to mitigate the adverse impacts resulting from any changes in tax laws and regulations, including any changes in the interpretation of such tax authorities, or from audits and other matters. Our inability to mitigate the negative consequences of such actions could cause our global effective tax rate to increase, our use of cash to increase and our financial condition and results of operations to suffer.

Current wording

We may be unable to mitigate the adverse impacts resulting from any changes in tax laws and regulations, including any changes in the interpretation of such tax authorities, or from audits and other matters. Our inability to mitigate the negative consequences of such actions could cause our global effective tax rate to increase, our use of cash to increase and our financial condition and results of operations to suffer.

Previous wording

The Company is organized as a holding company, a legal entity separate and distinct from our operating entities. As a holding company without significant operations of its own, our principal assets are the shares of capital stock of our subsidiaries. We rely on dividends, interest, and other payments from these subsidiaries to meet our obligations for paying principal and interest on outstanding debt, paying dividends to shareholders, repurchasing ordinary shares, and corporate expenses. Certain of our subsidiaries are subject to regulatory requirements of the jurisdictions in which they operate or other restrictions that may limit the amounts that subsidiaries can pay in dividends or other payments to us. No assurance can be given that there will not be further changes in law, regulatory actions, or other circumstances that could restrict the ability of our subsidiaries to pay dividends or otherwise make payments to us. Furthermore, no assurance can be given that our subsidiaries may be able to make timely payments to us in order for us to meet our obligations.

Current wording

The Company is organized as a holding company, a legal entity separate and distinct from our operating entities. As a holding company without significant operations of its own, our principal assets are the shares of capital stock of our subsidiaries. We rely on dividends, interest, and other payments from these subsidiaries to meet our obligations for paying principal and interest on outstanding debt, paying dividends to shareholders, repurchasing ordinary shares, and corporate expenses. Certain of our subsidiaries are subject to regulatory requirements of the jurisdictions in which they operate or other restrictions that may limit the amounts that subsidiaries can pay in dividends or other payments to us. Changes in law, regulatory actions, or other circumstances could restrict the ability of our subsidiaries to pay dividends or otherwise make payments to us. Furthermore, our subsidiaries may be unable to make timely payments to us when needed, which could impair our ability to meet our obligations, pay dividends, repurchase shares, or fund other aspects of our operations and corporate expenses.

Previous wording

E&O claims include, for example, the failure of our employees or sub-agents, whether negligently or intentionally, to place coverage correctly or notify carriers of claims on behalf of clients, to provide insurance carriers with complete and accurate information relating to the risks being insured, or the failure to give error-free consulting, financial, or investment advice. It is not always possible to prevent and detect E&Os, and the precautions we take may not be effective in all cases. In addition, we are subject to other types of claims, litigation, and proceedings in the ordinary course of business, which along with E&O claims, may seek damages, including punitive damages or damages on behalf of a plaintiff class, in amounts that could, if awarded, have a material adverse impact on the Company’s financial position, earnings, and cash flows. In addition to potential liability for monetary damages, such claims or outcomes could harm our reputation or divert management resources away from operating our business.

Current wording

E&O claims include, for example, the failure of our employees or sub-agents, whether negligently or intentionally, to place coverage correctly or notify carriers of claims on behalf of clients, to provide insurance carriers with complete and accurate information relating to the risks being insured, or the failure to give error-free consulting, financial, investment or other advice. It is not always possible to prevent and detect E&Os, and the precautions we take may not be effective in all cases. In addition, we are subject to other types of claims, litigation, and proceedings in the ordinary course of business, which along with E&O claims, may seek damages, including punitive damages or damages on behalf of a plaintiff class, in amounts that could, if awarded, have a material adverse impact on the Company’s financial position, earnings, and cash flows. In addition to potential liability for monetary damages, such claims or outcomes could harm our reputation or divert management resources away from operating our business.

Previous wording

Our businesses are subject to extensive legal and regulatory oversight throughout the world, including the Irish Companies Act, the U.S. securities laws, rules, and regulations, the rules and regulations promulgated by the FCA and a variety of other laws, rules, and regulations addressing, among other things, licensing, data privacy, management and protection, trade sanctions laws, restrictions and export controls, anti-money laundering, wage-and-hour standards, employment and labor relations, antitrust and competition, anti-corruption, currency, reserves, government contracting, and the amount of local investment with respect to our operations in certain countries. This legal and regulatory oversight could reduce our profitability or limit our growth by: increasing the costs of legal and regulatory compliance; limiting or restricting the products or services we sell, the markets we serve or enter, the methods by which we sell our products and services, the overall structure of our business units, the type of services and prices we can charge for our services, or the form of compensation we can accept from our clients, carriers, and third parties; or by subjecting our businesses to the possibility of legal and regulatory actions, proceedings, or fines.

Current wording

Our businesses are subject to extensive legal and regulatory oversight throughout the world, including the Irish Companies Act, the U.S. securities laws, rules, and regulations, the rules and regulations promulgated by the FCA and a variety of other laws, rules, and regulations addressing, among other things, licensing, data privacy, data management and data protection, artificial intelligence, trade sanctions laws, restrictions and export controls, anti-money laundering, wage-and-hour standards, employment and labor relations, antitrust and competition, anti-corruption, currency, reserves, government contracting, and the amount of local investment with respect to our operations in certain countries. This legal and regulatory oversight could reduce our profitability or limit our growth by: increasing the costs of legal and regulatory compliance; limiting or restricting the products or services we sell, the markets we serve or enter, the methods by which we sell our products and services, the overall structure of our business units, the type of services and prices we can charge for our services, or the form of compensation we can accept from our clients, carriers, and third parties; or by subjecting our businesses to the possibility of legal and regulatory actions, proceedings, or fines.

Previous wording

In addition to the complexity of the laws and regulations themselves, the development of new laws and regulations or changes in application or interpretation of current laws and regulations or conflict between them also increases our legal and regulatory compliance complexity. Additionally, our acquisitions of new businesses and our continued operational changes and entry into new jurisdictions and development of new service offerings increases our legal and regulatory compliance complexity, as well as the type of governmental oversight to which we may be subject. Changes in laws and regulations could mandate significant and costly changes to the way we implement our services and solutions, impose additional licensure requirements or costs to our operations and services, or cause us to cease offering certain services or solutions. New or evolving laws or regulations may also lead our clients to include contractual requirements in their agreements with us, which may increase our costs of compliance or introduce additional organizational complexity. Furthermore, as we enter new jurisdictions or businesses and further develop and expand our services, including through acquisitions, we may become subject to additional types of laws and governmental oversight and supervision, such as those applicable to the financial lending or other service institutions. Regulatory developments that could result in changes that adversely affect us or cause us to change our business or operations include: additional requirements related to the use of artificial intelligence, data privacy and protection, data management and data usage in jurisdictions in which we operate that may increase our costs of compliance and potentially reduce the manner in which we can use data; changes in tax regulations in the jurisdictions in which we operate; regulatory actions or changes that require us to change our compensation model; or additional regulations or other governmental action in jurisdictions in which we operate.

Current wording

In addition to the complexity of the laws and regulations themselves, the development of new laws and regulations or changes in application or interpretation of current laws and regulations or conflict between them also increases our legal and regulatory compliance complexity and risk. Additionally, our acquisitions of new businesses and our continued operational changes and entry into new jurisdictions and development of new service offerings increases our legal and regulatory compliance complexity, as well as the type of governmental oversight to which we may be subject. Changes in laws and regulations could mandate significant and costly changes to the way we implement our services and solutions, impose additional licensure requirements or costs to our operations, workforce and services, or cause us to cease offering certain services or solutions. New or evolving laws or regulations may also lead our clients to include contractual requirements in their agreements with us, which may increase our costs of compliance or introduce additional organizational complexity. Furthermore, as we enter new jurisdictions or businesses and further develop and expand our services, including through acquisitions, we may become subject to additional types of laws and governmental oversight and supervision, such as those applicable to the financial lending or other service institutions. Regulatory developments that could result in changes that adversely affect us or cause us to change our business or operations include: additional requirements related to the use of artificial intelligence, and the use, access, privacy, protection, management, localization and transfer of data in jurisdictions in which we operate that may increase our costs of compliance and potentially reduce the manner in which we can use data; changes in tax regulations in the jurisdictions in which we operate; regulatory actions or changes that require us to change our compensation model; or additional regulations or other governmental action in jurisdictions in which we operate.

Previous wording

Governmental, investor, stakeholder and greater public attention to ESG matters, including new or enhanced reporting, diligence or disclosure rules and regulations, has expanded and may continue to change the nature, scope, and complexity of matters that we are required to control, assess, and report. These and other rapidly changing laws, rules, regulations and expectations, which may differ across the jurisdictions in which we operate, may increase the cost of our compliance and risk management and otherwise impact our business, which could have a material adverse effect on our business, results of operations, and financial condition. In addition, the shift toward a lower-carbon economy, driven by changes in laws, rules and regulations, low-carbon technology advancement, consumer sentiment, and/or liability risks, may negatively impact our business model and/or the business models of our clients.

Current wording

Governmental, investor, stakeholder and public attention to corporate sustainability matters, including new or changing reporting, diligence or disclosure rules and regulations, has increased in recent years and may continue to change the nature, scope, and complexity of matters that we are required to control, assess, and report. These and other rapidly changing laws, rules, regulations and expectations, which may differ across the jurisdictions in which we operate, may increase the cost of our compliance and risk management and increase the scope and rigor of data collection, controls, and external assurance of sustainability‑related information, and otherwise impact our business, each of which could have a material adverse effect on our business, results of operations, and financial condition. Increased scrutiny of corporate sustainability claims, and changes in client and investor preferences may also create legal, regulatory, contractual, and reputational risks and could require changes to our products, services, client engagements or operations, which may increase our cost of doing business. In addition, the shift toward a lower-carbon economy, driven by changes in laws, rules and regulations, low-carbon technology advancement, consumer sentiment, and/or liability risks, may negatively impact our business model and/or the business models of our clients.

Previous wording

In all jurisdictions, the applicable laws and regulations are subject to amendment or interpretation by regulatory authorities. Generally, such authorities are vested with relatively broad discretion to grant, renew, and revoke licenses and approvals and to implement regulations. Accordingly, we may have a license revoked, limited, or be unable to obtain new licenses and therefore be precluded or suspended from carrying on or developing some or all of our activities or otherwise be fined or penalized in a given jurisdiction. No assurances can be given that our business can further develop or continue to be conducted in any given jurisdiction in the future as it has been conducted in the past. Changes in the regulatory scheme, or even changes in how applicable regulations are interpreted or applied, could have an adverse impact on our results of operations by limiting revenue streams or increasing costs of compliance.

Current wording

In all jurisdictions, the applicable laws and regulations are subject to amendment or interpretation by regulatory authorities. Generally, such authorities are vested with relatively broad discretion to grant, renew, and revoke licenses and approvals and to implement regulations. Accordingly, we may have a license revoked, limited, or be unable to obtain new licenses and therefore be precluded or suspended from carrying on or developing some or all of our activities or otherwise be fined or penalized in a given jurisdiction. Our business may be unable to develop or be conducted in any given jurisdiction as it has been conducted in the past. Changes in the regulatory scheme, or changes in how applicable regulations are interpreted or applied, could have an adverse impact on our results of operations by limiting revenue streams or increasing costs of compliance.

Previous wording

If we violate the laws and regulations to which we are subject, we could be subject to fines, penalties, or criminal sanctions and could be prohibited from conducting business in one or more jurisdictions. There can be no assurance that our employees, contractors, or agents will not violate these laws and regulations, causing an adverse effect on our operations and financial condition.

Current wording

If we violate the laws and regulations to which we are subject, we could be subject to fines, penalties, or criminal sanctions and could be prohibited from conducting business in one or more jurisdictions. There can be no assurance that our employees, contractors, agents or business partners will not violate these laws and regulations, causing an adverse effect on our operations and financial condition.

Previous wording

Heightened regulatory oversight and scrutiny may lead to additional regulatory investigations, increased government involvement, or enforcement actions, which could consume significant management time and resources and could have adverse effects on our business and operations. For instance, increased scrutiny by competition authorities may increase our costs of doing business or force us to change the way we conduct business or refrain from or otherwise alter the way we engage in certain activities. Additionally, we could suffer significant financial or reputational harm if we fail to properly identify and manage potential conflicts of interest, which exist or could exist any time we or any of our employees have or may have an interest in a transaction or engagement that is inconsistent with our clients’ interests. This could occur, for example, when we are providing services to multiple parties in connection with a transaction. We also may provide multiple types of services to certain clients from more than one of our solution lines, creating a greater potential for conflicts with advisory services.

Current wording

Heightened regulatory oversight and scrutiny may lead to additional regulatory investigations, increased government involvement, or enforcement actions, which could consume significant management time and resources and could have adverse effects on our business and operations. For instance, increased scrutiny by competition authorities may increase our costs of doing business or force us to change the way we conduct business or refrain from or otherwise alter the way we engage in certain activities. Additionally, we could suffer significant financial or reputational harm if we fail to properly identify and manage potential conflicts of interest, which exist or could exist any time we or any of our employees or business partners have or may have an interest in a transaction or engagement that is inconsistent with our clients’ interests. This could occur, for example, when we are providing services to multiple parties in connection with a transaction. We also may provide multiple types of services to certain clients from more than one of our solution lines, creating a greater potential for conflicts with advisory services.

Previous wording

Due to the broad scope of our businesses and our client base, we regularly address potential conflicts of interest, including, without limitation, situations where our services to a particular client or our own investments or other interests conflict, or are perceived to conflict, with the interests of another client. If these are not adequately identified and managed, this could then lead to failure or perceived failure to protect the client’s interests, with consequential regulatory and reputational risks, including litigation or enforcement actions that could adversely affect us and our operations. Identifying conflicts of interest may also prove particularly difficult as we continue to bring systems and information together and integrate newly acquired businesses. In addition, we may not be able to adequately address such conflicts of interest.

Current wording

Due to the broad scope of our businesses and our client base, we regularly address potential conflicts of interest, including, without limitation, situations where our services to a particular client or our own investments or other interests conflict, or are perceived to conflict, with the interests of another client. If these are not adequately identified and managed, this could then lead to failure or perceived failure to protect the client’s interests, with consequential regulatory and reputational risks, including litigation or enforcement actions that could adversely affect us and our operations. Identifying and addressing conflicts of interest may also prove particularly difficult as we continue to bring systems and information together and integrate our existing and newly acquired businesses.

Previous wording

Insurance intermediaries have traditionally been remunerated by base commissions paid by insurance carriers in respect of insurance placements for clients, or by fees paid by clients. Intermediaries also obtain other revenue from insurance carriers. This revenue, when derived from carriers in their capacity as insurance markets (as opposed to as corporate clients of the intermediaries where they may be purchasing insurance or reinsurance or other non-market related services), is commonly known as MDI. MDI is another example of an area in which potential conflicts of interest may arise. This revenue may be subject to scrutiny by various regulators under conflict of interest, anti-trust, unfair competition, conduct and anti-bribery laws and regulations. MDI takes a variety of forms, including volume- or profit-based contingent commissions, facilities administration charges, business development agreements, and fees for providing consulting services to carriers. While accepting MDI is a lawful and acceptable business practice, we cannot predict whether our position will result in regulatory or other scrutiny and our controls may not be fully effective.

Current wording

Insurance intermediaries have traditionally been remunerated by base commissions paid by insurance carriers in respect of insurance placements for clients, or by fees paid by clients. Intermediaries also obtain other revenue from insurance carriers. This revenue, when derived from carriers in their capacity as insurance markets (as opposed to as corporate clients of the intermediaries where they may be purchasing insurance or reinsurance or other non-market related services), is commonly known as market-derived income, or “MDI.” MDI is another example of an area in which potential conflicts of interest may arise. MDI takes a variety of forms, including volume- or profit-based contingent commissions, facilities administration charges, business development agreements, and fees for providing consulting services to carriers. Accepting this revenue is a lawful and generally commercially accepted business practice that may nonetheless be subject to scrutiny by various regulators under conflict of interest, anti-trust, unfair competition and anti-bribery laws and regulations, subject to legal or regulatory change, or negatively impacted by internal controls that are not fully effective.

Previous wording

In addition, to protect or enforce our intellectual property rights, we may initiate litigation against third parties, such as infringement suits or interference proceedings. Third parties may assert intellectual property rights claims against us, which may be costly to defend, could require the payment of damages, and could limit our ability to use or offer certain technologies, products, or other intellectual property. Any intellectual property claims, with or without merit, could be expensive, take significant time and divert management’s attention from other business concerns. Successful challenges against us could require us to modify or discontinue our use of technology or business processes where such use is found to infringe or violate the rights of others, or require us to purchase licenses from third parties, any of which could adversely affect our business, financial condition, and operating results.

Current wording

In addition, to protect or enforce our intellectual property rights, we may initiate litigation against third parties, such as breach of contract, infringement suits or interference proceedings. Third parties may assert intellectual property rights claims against us, which may be costly to defend, could require the payment of damages, and could limit our ability to use or offer certain technologies, products, or other intellectual property. Any intellectual property claims, with or without merit, could be expensive, take significant time and divert management’s attention from other business concerns. Successful challenges against us could require us to modify or discontinue our use of products, technology or business processes where such use is found to infringe or violate the rights of others, or require us to purchase licenses from third parties, any of which could adversely affect our business, financial condition, and operating results.

Previous wording

Our operations in countries undergoing political change or experiencing economic instability are subject to uncertainty and risks that could materially adversely affect our business. These risks include, particularly in emerging markets, the possibility we would be subject to undeveloped or evolving legal systems, unstable governments and economies, impacts from geopolitical conflicts, and potential governmental actions affecting the flow of goods, services, and currency.

Current wording

Our operations in countries undergoing political change or experiencing economic instability are subject to uncertainty and risks that could materially adversely affect our business. These risks include, particularly but not limited to in emerging markets, the possibility we would be subject to undeveloped or evolving legal systems, unstable governments and economies, impacts from geopolitical conflicts, and potential governmental actions affecting the flow of goods, services, currency and particular sectors or entities.

Previous wording

In 2023, we initiated a three-year restructuring program, Accelerating Aon United Program (the “Program”). The Program is intended to streamline our technology infrastructure, optimize our leadership structure and resource alignment, and reduce our real estate footprint to align to our hybrid working strategy. The Program includes technology-related costs to facilitate streamlining and simplifying operations, headcount reduction costs, and costs associated with asset impairments, including real estate consolidation costs. The Program is currently expected to result in cumulative costs of approximately $1.0 billion, consisting of approximately $0.9 billion of cash charges and approximately $0.1 billion of non-cash charges.

Current wording

In 2023, we initiated a three-year restructuring program, Accelerating Aon United Program (the “Program”). The Program is intended to streamline our technology infrastructure, optimize our leadership structure and resource alignment, and reduce our real estate footprint to align to our hybrid working strategy. The Program includes technology-related costs to facilitate streamlining and simplifying operations, headcount reduction costs, and costs associated with asset impairments, including real estate consolidation costs. The Program is currently expected to result in cumulative costs of approximately $1.3 billion, consisting of approximately $1.2 billion of cash charges and approximately $0.1 billion of non-cash charges.

Previous wording

We estimate that our annualized savings from the Program will be approximately $350 million by the end of 2026. Actual total costs, savings and timing may vary from these estimates due to changes in the scope or assumptions underlying the Program and other operational improvement initiatives. We therefore cannot assure that we will achieve the targeted savings. Unanticipated costs or unrealized savings in connection with the Program and other operational improvement initiatives could adversely affect our consolidated financial statements.

Current wording

We estimate that our annualized savings from the Program will be approximately $450 million by the end of 2027. Actual total costs, savings and timing may continue to vary from these estimates due to changes in the scope or assumptions underlying the Program and other operational improvement initiatives. We therefore cannot assure that we will achieve the targeted savings. Unanticipated costs or unrealized savings in connection with the Program and other operational improvement initiatives could adversely affect our consolidated financial statements.

Previous wording

We depend, in material part, upon the members of our senior management team who possess extensive knowledge and a deep understanding of our business and our strategy, as well as the colleagues who are critical to developing and retaining client relationships. The unexpected loss of services of any of these senior leaders could have a disruptive effect adversely impacting our ability to manage our business effectively and execute our business strategy. Additionally, competition for professional personnel remains intense, and we are constantly working to retain, attract and develop these professionals. If we cannot successfully do so, our business, operating results, and financial condition could be adversely affected. We may also become involved in disputes and litigation in connection with our efforts to retain and hire personnel, which can be disruptive to our business and may expose us to potential liability for monetary damages. While we have plans for key management succession and long-term compensation plans designed to retain our senior management team and critical colleagues, if our succession plans and retention programs do not operate effectively, our business could be adversely affected.

Current wording

We depend, in material part, upon the members of our senior management team who possess extensive knowledge and a deep understanding of our business and our strategy, as well as the colleagues who are critical to developing and retaining client relationships. The unexpected loss of services of any of these senior leaders could have a disruptive effect adversely impacting our ability to manage our business effectively and execute our business strategy. Additionally, competition for professional personnel remains intense, and competitors are using increasingly aggressive measures to recruit professional talent in our industry. We are constantly working to attract, develop, and retain these professionals. If we cannot successfully do so, our business, operating results, and financial condition could be adversely affected. We have been and may continue to be involved in disputes and litigation in connection with our efforts to retain and hire personnel, which can be disruptive to our business, distractive to management, costly, and may expose us to potential liability for monetary damages or reputational damage. If our succession and long-term compensation plans and programs for our senior management team and critical colleagues do not operate effectively or we are required to change these plans or programs, our business could be adversely affected.

Previous wording

We strive to maintain an equitable work environment that unlocks the full potential of all of our personnel. This includes our commitment to inclusion, focus on colleague wellness and mental health and belonging, and building a flexible work environment that meets colleague and client needs. If we are unsuccessful in maintaining such a work environment or adapting to colleague needs or expectations, we could experience difficulty attracting and retaining personnel, which could have a negative impact on our business.

Current wording

We strive to maintain an equitable work environment that unlocks the full potential of all of our personnel. This includes our focus on colleague wellness, mental health and belonging, and building a flexible work environment that meets colleague and client needs. If we are unsuccessful in maintaining such a work environment or adapting to colleague needs or expectations, we could experience difficulty attracting and retaining personnel, which could have a negative impact on our business.

Previous wording

•trade barriers, trade wars or tariffs.

Current wording

•trade barriers, trade wars, tariffs or trade sanctions.

Previous wording

Certain of our businesses collect premiums from insureds and remit the premiums to the respective insurers. We also collect claims or refunds from insurers on behalf of insureds, which are then remitted to the insureds. Consequently, at any given time, we may be holding and managing funds of our clients. This function creates a risk of loss arising from, among other things, fraud by employees or third parties, execution of unauthorized transactions, errors relating to transaction processing, or other cybersecurity events or security breaches. We are also potentially at risk in the event the financial institution in which we hold these funds suffers any kind of insolvency or liquidity event. The occurrence of any of these types of events in connection with this function could cause us financial loss and reputational harm.

Current wording

Certain of our businesses collect premiums from insureds and remit the premiums to the respective insurers. We also collect claims or refunds from insurers on behalf of insureds, which are then remitted to the insureds. Consequently, at any given time, we may be holding and managing funds of our clients. This function creates a risk of loss arising from, among other things, fraud by employees or third parties, execution of unauthorized transactions, errors relating to transaction processing, or cybersecurity events or security breaches. Our business could also be negatively impacted in the event the financial institution in which we hold these funds suffers any kind of insolvency or liquidity event. The occurrence of any of these types of events in connection with this function could cause us financial loss and reputational harm.

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