Aon (AON) Tax Rate (2009 - 2026)

Aon has reported Tax Rate for 18 years, with the latest figure at 21.96% in Q2 2026.

• On a quarterly basis, Tax Rate rose 646.0% year-over-year to 21.96% in Q2 2026; TTM through Jun 2026 was 21.74%, a 267.0% increase from a year earlier, with the FY2025 full-year figure at 21.2%, down 23.0% from the prior year.
• Tax Rate was 21.96% for Q2 2026 at Aon, up from 20.22% 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 18.67%, with a median of 19.61% recorded in 2022.
• The largest YoY upside for Tax Rate was 2069 bps in 2022 against a maximum downside of 1526 bps in 2022.
• Over 5 years, Tax Rate 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 dropped by 4 bps to 21.96% in 2026.
• The last three Tax Rate figures came in at 21.96% (Q2 2026), 20.22% (Q1 2026), and 22.86% (Q4 2025), per Business Quant data.