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Aon (AON) Tax Rate (2016 - 2025)

Historic Tax Rate for Aon (AON) over the last 17 years, with Q4 2025 value amounting to 22.86%.

  • Aon's Tax Rate rose 52400.0% to 22.86% in Q4 2025 from the same period last year, while for Dec 2025 it was 21.2%, marking a year-over-year decrease of 2300.0%. This contributed to the annual value of 21.2% for FY2025, which is 2300.0% down from last year.
  • According to the latest figures from Q4 2025, Aon's Tax Rate is 22.86%, which was up 52400.0% from 21.27% recorded in Q3 2025.
  • In the past 5 years, Aon's Tax Rate registered a high of 34.06% during Q2 2021, and its lowest value of 2.65% during Q3 2021.
  • Its 5-year average for Tax Rate is 18.06%, with a median of 19.2% in 2023.
  • In the last 5 years, Aon's Tax Rate plummeted by -251800bps in 2021 and then soared by 206900bps in 2022.
  • Over the past 5 years, Aon's Tax Rate (Quarter) stood at 15.73% in 2021, then plummeted by -61bps to 6.06% in 2022, then soared by 176bps to 16.75% in 2023, then grew by 5bps to 17.62% in 2024, then grew by 30bps to 22.86% in 2025.
  • Its Tax Rate was 22.86% in Q4 2025, compared to 21.27% in Q3 2025 and 15.5% in Q2 2025.