Aon (AON) Tax Rate (2009 - 2026)
Aon (AON) recorded Tax Rate of 20.59% in Q3 2026, down 0.68 percentage points from 21.27% a year earlier and down 1.37 percentage points from the prior quarter.
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Analysis
Aon (AON) Tax Rate (2009 - 2026) Analysis & Trends
On a TTM basis, Aon's Tax Rate came in at 21.66% as of Sep 30, 2026, up 2.45 percentage points year-over-year; for FY2025, it was 21.20%, down 0.23 percentage points from FY2024.
- Annual Tax Rate has a five-year change of +3.03 percentage points (FY2020 to FY2025).
- Across earlier years, Tax Rate came in at 21.43% in FY2024 (+4.36 pp), 17.07% in FY2023 (+0.91 pp), 16.16% in FY2022 (-16.10 pp) and 32.26% in FY2021 (+14.10 pp).
- Quarterly Tax Rate has ranged from 6.06% in Q4 2022 to 23.24% in Q1 2024 over the past five years.
- On a year-over-year basis, Tax Rate rose in four of the last eight quarters, with an average year-over-year change of +0.22 percentage points.
- Peak year-over-year performance for Tax Rate in the last five years was a gain of 10.68 percentage points in Q4 2023, against a drop of 15.26 percentage points in Q2 2022 at the low end.
- Per Business Quant, the preceding three quarters came in at 21.96% (Q2 2026), 20.22% (Q1 2026) and 22.86% (Q4 2025).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Tax Rate (Qtr) |
|---|---|---|---|---|---|
| 1 | Chubb | 140.04 Bn | 85.69 Bn | 8.67 Bn | 19.58% |
| 2 | Progressive | 132.33 Bn | 107.86 Bn | 8.29 Bn | 21.45% |
| 3 | Marsh & Mclennan Companies | 97.77 Bn | 89.93 Bn | - | 21.39% |
| 4 | Travelers Companies | 81.70 Bn | 59.18 Bn | 5.93 Bn | 19.08% |
| 5 | Manulife Financial | 75.38 Bn | -20.12 Bn | - | - |
| 6 | Arthur J. Gallagher | 72.26 Bn | 66.85 Bn | - | 21.17% |
| 7 | Aon | 71.52 Bn | 50.73 Bn | - | 20.59% |
| 8 | Metlife | 65.44 Bn | -41.34 Bn | 7.82 Bn | 24.73% |
| 9 | Allstate | 63.89 Bn | 23.73 Bn | 7.41 Bn | 20.52% |
| 10 | Aflac | 62.31 Bn | 38.67 Bn | 1.87 Bn | 39.40% |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Sep 30, 2026 | 20.59% |
| Jun 30, 2026 | 21.96% |
| Mar 31, 2026 | 20.22% |
| Dec 31, 2025 | 22.86% |
| Sep 30, 2025 | 21.27% |
| Jun 30, 2025 | 15.50% |
| Mar 31, 2025 | 21.44% |
| Dec 31, 2024 | 17.62% |
| Sep 30, 2024 | 20.94% |
| Jun 30, 2024 | 22.92% |
| Mar 31, 2024 | 23.24% |
| Dec 31, 2023 | 16.75% |
| Sep 30, 2023 | 16.61% |
| Jun 30, 2023 | 12.61% |
| Mar 31, 2023 | 19.60% |
| Dec 31, 2022 | 6.06% |
| Sep 30, 2022 | 18.04% |
| Jun 30, 2022 | 18.80% |
| Mar 31, 2022 | 19.63% |
| Dec 31, 2021 | 15.73% |
API Access
Aon Tax Rate API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=tax-rate&ticker=AON&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "tax-rate", "ticker": "AON", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=tax-rate&ticker=AON&period=max&api_key=YOUR_API_KEY");
const data = await res.json();