Aon (AON) Tax Rate (2009 - 2026)
Aon's quarterly Tax Rate came in at 20.22% in Q1 2026, down 122.0% year-on-year from 91.9% in Q1 2025, and down 11.56% quarter-over-quarter from 22.86% in Q4 2025.
Aon has reported Tax Rate for 18 years, with the latest figure at 20.22% in Q1 2026.
- For the quarter ending Q1 2026, Tax Rate fell 122.0% year-over-year to 20.22%; the trailing twelve-month figure through Mar 2026 stood at 20.84% (up 19.0% YoY), and the FY2025 full-year result was 21.2%, down 23.0% from the prior year.
- Tax Rate for Q1 2026 stood at 20.22%, down from 22.86% in the prior quarter.
- The five-year high for Tax Rate was 23.24% in Q1 2024, with the low at 6.06% in Q4 2022.
- Average Tax Rate over 5 years is 18.48%, with a median of 19.6% recorded in 2023.
- Peak annual rise in Tax Rate reached 2069 bps in 2022, while the deepest fall reached 1526 bps in 2022.
- Tracing AON's Tax Rate over 5 years: stood at 6.06% in 2022, then jumped by 176 bps to 16.75% in 2023, then advanced by 5 bps to 17.62% in 2024, then climbed by 30 bps to 22.86% in 2025, then declined by 12 bps to 20.22% in 2026.
- The last three Tax Rate figures came in at 20.22% (Q1 2026), 22.86% (Q4 2025), and 21.27% (Q3 2025), per Business Quant data.
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Tax Rate (Qtr) |
|---|---|---|---|---|---|
| 1 | Aon | 69.60 Bn | 68.21 Bn | - | 20.22 |
| 2 | Arthur J. Gallagher | 52.64 Bn | 51.26 Bn | - | 21.09 |
| 3 | Willis Towers Watson | 24.45 Bn | 22.68 Bn | 1.98 Bn | 18.62 |
| 4 | Brown & Brown | 19.37 Bn | 18.39 Bn | 1.61 Bn | 19.89 |
| 5 | XChange TEC.INC | 6.95 Bn | 6.95 Bn | - | - |
| 6 | Accelerant Holdings | 3.83 Bn | 2.32 Bn | 48.00 Mn | 305.00 |
| 7 | Corvel | 3.22 Bn | 2.87 Bn | 54.92 Mn | 25.00 |
| 8 | Baldwin Insurance | 1.84 Bn | 2.28 Bn | - | 98.71 |
| 9 | Goosehead Insurance | 1.01 Bn | 899.53 Mn | - | 17.36 |
| 10 | Twfg | 279.02 Mn | 351.22 Mn | - | 7.97 |
Historic Data
Download Data| Date | Value |
|---|---|
| Mar 31, 2026 | 20.22 |
| Mar 31, 2026 | 20.22 |
| Dec 31, 2025 | 22.86 |
| Dec 31, 2025 | 22.86 |
| Sep 30, 2025 | 21.27 |
| Sep 30, 2025 | 21.27 |
| Jun 30, 2025 | 15.50 |
| Jun 30, 2025 | 15.50 |
| Mar 31, 2025 | 21.44 |
| Mar 31, 2025 | 21.44 |
| Dec 31, 2024 | 17.62 |
| Dec 31, 2024 | 17.62 |
| Sep 30, 2024 | 20.94 |
| Sep 30, 2024 | 20.94 |
| Jun 30, 2024 | 22.92 |
| Jun 30, 2024 | 22.92 |
| Mar 31, 2024 | 23.24 |
| Mar 31, 2024 | 23.24 |
| Dec 31, 2023 | 16.75 |
| Dec 31, 2023 | 16.75 |
| Sep 30, 2023 | 16.61 |
| Sep 30, 2023 | 16.61 |
| Jun 30, 2023 | 12.61 |
| Jun 30, 2023 | 12.61 |
| Mar 31, 2023 | 19.60 |
| Mar 31, 2023 | 19.60 |
| Dec 31, 2022 | 6.06 |
| Dec 31, 2022 | 6.06 |
| Sep 30, 2022 | 18.04 |
| Sep 30, 2022 | 18.04 |
| Jun 30, 2022 | 18.80 |
| Jun 30, 2022 | 18.80 |
| Mar 31, 2022 | 19.63 |
| Mar 31, 2022 | 19.63 |
| Dec 31, 2021 | 15.73 |
| Dec 31, 2021 | 15.73 |
| Sep 30, 2021 | -2.65 |
| Sep 30, 2021 | -2.65 |
| Jun 30, 2021 | 34.06 |
| Jun 30, 2021 | 34.06 |
| Mar 31, 2021 | 20.05 |
| Mar 31, 2021 | 20.05 |
| Dec 31, 2020 | 14.70 |
| Dec 31, 2020 | 14.70 |
| Sep 30, 2020 | 22.53 |
| Sep 30, 2020 | 22.53 |
| Jun 30, 2020 | 17.14 |
| Jun 30, 2020 | 17.14 |
| Mar 31, 2020 | 19.29 |
| Mar 31, 2020 | 19.29 |
| Dec 31, 2019 | 13.41 |
| Dec 31, 2019 | 13.41 |
| Sep 30, 2019 | 19.65 |
| Sep 30, 2019 | 19.65 |
| Jun 30, 2019 | 16.33 |
| Jun 30, 2019 | 16.33 |
| Mar 31, 2019 | 15.71 |
| Mar 31, 2019 | 15.71 |
| Dec 31, 2018 | 32.54 |
| Dec 31, 2018 | 32.54 |
| Sep 30, 2018 | 20.10 |
| Sep 30, 2018 | 20.10 |
| Jun 30, 2018 | 165.52 |
| Jun 30, 2018 | 165.52 |
| Mar 31, 2018 | 15.88 |
| Mar 31, 2018 | 15.88 |
| Dec 31, 2017 | 95.81 |
| Dec 31, 2017 | 95.81 |
| Sep 30, 2017 | 2.00 |
| Sep 30, 2017 | 2.00 |
| Jun 30, 2017 | 76.88 |
| Jun 30, 2017 | 76.88 |
| Dec 31, 2016 | 5.19 |
| Dec 31, 2016 | 5.19 |
| Sep 30, 2016 | 8.09 |
| Sep 30, 2016 | 8.09 |
| Jun 30, 2016 | 13.61 |
| Jun 30, 2016 | 13.61 |
| Mar 31, 2016 | 15.90 |
| Mar 31, 2016 | 15.90 |
| Dec 31, 2015 | 4.54 |
| Dec 31, 2015 | 4.54 |
| Sep 30, 2015 | 13.92 |
| Sep 30, 2015 | 13.92 |
| Jun 30, 2015 | 12.15 |
| Jun 30, 2015 | 12.15 |
| Mar 31, 2015 | 19.00 |
| Mar 31, 2015 | 19.00 |
| Dec 31, 2014 | 19.62 |
| Dec 31, 2014 | 19.62 |
| Sep 30, 2014 | 19.23 |
| Sep 30, 2014 | 19.23 |
| Jun 30, 2014 | 17.63 |
| Jun 30, 2014 | 17.63 |
| Mar 31, 2014 | 18.84 |
| Mar 31, 2014 | 18.84 |
| Dec 31, 2013 | 24.21 |
| Dec 31, 2013 | 24.21 |
| Sep 30, 2013 | 25.21 |
| Sep 30, 2013 | 25.21 |
| Jun 30, 2013 | 26.32 |
| Jun 30, 2013 | 26.32 |
| Mar 31, 2013 | 26.09 |
| Mar 31, 2013 | 26.09 |
| Dec 31, 2012 | 25.18 |
| Dec 31, 2012 | 25.18 |
| Sep 30, 2012 | 23.36 |
| Sep 30, 2012 | 23.36 |
| Jun 30, 2012 | 27.35 |
| Jun 30, 2012 | 27.35 |
| Mar 31, 2012 | 28.03 |
| Mar 31, 2012 | 28.03 |
| Dec 31, 2011 | 26.80 |
| Dec 31, 2011 | 26.80 |
| Sep 30, 2011 | 28.77 |
| Sep 30, 2011 | 28.77 |
| Jun 30, 2011 | 24.72 |
| Jun 30, 2011 | 24.72 |
| Mar 31, 2011 | 28.93 |
| Mar 31, 2011 | 28.93 |
| Dec 31, 2010 | 12.78 |
| Dec 31, 2010 | 12.78 |
| Sep 30, 2010 | 29.33 |
| Sep 30, 2010 | 29.33 |
| Jun 30, 2010 | 24.59 |
| Jun 30, 2010 | 24.59 |
| Mar 31, 2010 | 24.70 |
| Mar 31, 2010 | 24.70 |
| Dec 31, 2009 | 1.36 |
| Dec 31, 2009 | 1.36 |
| Sep 30, 2009 | 26.40 |
| Sep 30, 2009 | 26.40 |
| Jun 30, 2009 | 27.14 |
| Jun 30, 2009 | 27.14 |
| Mar 31, 2009 | 31.49 |
| Mar 31, 2009 | 31.49 |