Aon (AON) Tax Rate %: 21.96% (As of Jun. 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

AON Aon PLC AON
90 GF Score
Price $359.97
GF Value $391.48
Valuation Fairly Valued
! 2 Warning Signs
View Full Analysis

What is Aon Tax Rate %?

Aon AON +0.93% 90 Tax Rate % is 21.96% as of Jun. 2026. GuruFocus rates AON with a GF Score™ of 90/100 and a GF Value™ of $391.48 (Fairly Valued). The stock has 2 warning signs investors should review.

Tax Rate % is calculated as Tax Expense divided by its Pre-Tax Income. Aon's Tax Expense for the three months ended in Jun. 2026 was $159 Mil. Aon's Pre-Tax Income for the three months ended in Jun. 2026 was $724 Mil. Therefore, Aon's Tax Rate % for the quarter that ended in Jun. 2026 was 21.96%.


Aon Tax Rate % Related Terms


Aon Tax Rate % Historical Data

* Premium members only.

The historical data trend for Aon's Tax Rate % can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Aon Tax Rate % Chart

Aon Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Tax Rate %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 32.26 16.16 17.07 21.43 21.20

Aon Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Tax Rate % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 15.50 21.27 22.86 20.22 21.96
AON
90GF Score
Aon PLC AON
Tax Rate % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Aon Tax Rate % Calculation

Tax Rate % is the ratio of tax expense divided by pretax income, usually presented in percent.

Aon's Tax Rate % for the fiscal year that ended in Dec. 2025 is calculated as

Tax Rate %=Tax Expense (A: Dec. 2025 )/Pre-Tax Income (A: Dec. 2025 )
=1009/4759
=21.20 %

Aon's Tax Rate % for the quarter that ended in Jun. 2026 is calculated as

Tax Rate %=Tax Expense (Q: Jun. 2026 )/Pre-Tax Income (Q: Jun. 2026 )
=159/724
=21.96 %

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Frequently Asked Questions Learn more about Tax Rate % →
What does a Tax Rate % of 21.96% mean?
Aon (AON) has a Tax Rate % of 21.96% as of Jun. 2026.
Is Aon's Tax Rate % too high?
Aon's current Tax Rate % is 21.96%. Overall, Aon has a GF Score™ of 90/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Aon's Tax Rate % compare to MRSH and AJG?
Aon's Tax Rate % of 21.96% can be compared against companies in the Insurance industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Tax Rate % for an Insurance company?
A good Tax Rate % depends on the Insurance industry context. However, Tax Rate % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Tax Rate % mean?
A high Tax Rate % can signal that a stock is expensive relative to its fundamentals. Aon's current Tax Rate % is 21.96%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aon stock overvalued right now?
Based on GuruFocus' analysis, Aon (AON) is currently considered Fairly Valued. The stock's GF Value™ is $391.48, compared to a current price of $359.97 — trading 8% below its estimated fair value. The current Tax Rate % is 21.96%. Aon's overall GF Score™ is 90/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Tax Rate % calculated?
Tax Rate % is calculated from a company's financial statements. For Aon (AON), the current Tax Rate % is 21.96% as of Jun. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Aon (AON) Overvalued in 2026?

Based on GuruFocus' analysis, Aon stock appears to be undervalued. The current stock price of $359.97 is trading 8% below its estimated GF Value™ of $391.48. GuruFocus considers Aon to be Fairly Valued.

Key valuation signals for AON:

  • Tax Rate %: 21.96%
  • GF Value™: $391.48 vs. price of $359.97 (8% below fair value)
  • GF Score™: 90/100 with 2 warning signs

No single metric tells the full story. See the AON stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Aon Business Description

Address 15 George\'s Quay, Dublin 2, Dublin, IRL, D02 VR98
Aon is a leading global provider of insurance and reinsurance brokerage and human resources solutions. Its operations are tilted toward its brokerage operations. Headquartered in London, Aon has about 60,000 employees and operations in over 120 countries.
90GF Score

Get the complete analysis for AON

Tax Rate % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$359.97
Price
$391.48
GF Value