Aon (AON) Change in Taxes (2009 - 2026)
Aon (AON) posted Change in Taxes of -$312.0 million for Q2 2026, down 228.4% on a QoQ basis from $243.0 million in Q1 2026, and down 38.67% year-over-year from -$508.7 million in Q2 2025.
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Analysis
Aon (AON) Change in Taxes (2009 - 2026) Analysis & Trends
Aon has reported Change in Taxes for 18 years, with the latest figure at -$312.0 million in Q2 2026.
- On a quarterly basis, Change in Taxes fell 38.67% year-over-year to -$312.0 million in Q2 2026; TTM through Jun 2026 was $118.0 million, a 188.72% increase from a year earlier, with the FY2025 full-year figure at $114.0 million, changed N/A from the prior year.
- Change in Taxes was -$312.0 million for Q2 2026 at Aon, down from $243.0 million in the prior quarter.
- The five-year high for Change in Taxes was $255.0 million in Q4 2025, with the low at -$312.0 million in Q2 2026.
- Average Change in Taxes over 5 years is $24.2 million, with a median of $42.5 million recorded in 2022.
- The sharpest annual moves came in 2023 and 2024: Change in Taxes soared 600.0% in 2023, then sank 3680.0% in 2024.
- Over 5 years, Change in Taxes stood at $80.0 million in 2022, then soared by 45.0% to $116.0 million in 2023, then climbed by 2.59% to $119.0 million in 2024, then jumped by 114.29% to $255.0 million in 2025, then plunged by 222.35% to -$312.0 million in 2026.
- The last three Change in Taxes figures came in at -$312.0 million (Q2 2026), $243.0 million (Q1 2026), and $255.0 million (Q4 2025), per Business Quant data.
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Change Taxes (Qtr) |
|---|---|---|---|---|---|
| 1 | Marsh & Mclennan Companies | 81.24 Bn | 69.29 Bn | 6.04 Bn | 12.00 Mn |
| 2 | Aon | 60.67 Bn | 59.43 Bn | - | -312.00 Mn |
| 3 | Arthur J. Gallagher | 59.09 Bn | 57.73 Bn | - | -116.00 Mn |
| 4 | Willis Towers Watson | 28.02 Bn | 26.44 Bn | 2.09 Bn | - |
| 5 | Brown & Brown | 20.61 Bn | 19.72 Bn | 1.41 Bn | - |
| 6 | XChange TEC.INC | 11.95 Bn | 11.95 Bn | - | - |
| 7 | Erie Indemnity | 10.83 Bn | 10.48 Bn | - | - |
| 8 | Ryan Specialty Holdings | 9.82 Bn | 10.19 Bn | - | - |
| 9 | Hagerty | 4.67 Bn | 4.81 Bn | 244.11 Mn | - |
| 10 | Baldwin Insurance | 4.45 Bn | 4.81 Bn | - | - |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Jun 30, 2026 | -312.00 Mn |
| Mar 31, 2026 | 243.00 Mn |
| Dec 31, 2025 | 255.00 Mn |
| Sep 30, 2025 | -68.00 Mn |
| Jun 30, 2025 | -225.00 Mn |
| Mar 31, 2025 | 152.00 Mn |
| Dec 31, 2024 | 119.00 Mn |
| Sep 30, 2024 | -179.00 Mn |
| Jun 30, 2024 | -103.00 Mn |
| Mar 31, 2024 | 163.00 Mn |
| Dec 31, 2023 | 116.00 Mn |
| Sep 30, 2023 | 5.00 Mn |
| Jun 30, 2023 | -73.00 Mn |
| Mar 31, 2023 | 126.00 Mn |
| Dec 31, 2022 | 80.00 Mn |
| Sep 30, 2022 | -1.00 Mn |
| Jun 30, 2022 | -16.00 Mn |
| Mar 31, 2022 | 153.00 Mn |
| Dec 31, 2021 | 153.00 Mn |
| Sep 30, 2021 | -36.00 Mn |
API Access
Aon Change in Taxes 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=change-in-taxes&ticker=AON&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "change-in-taxes", "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=change-in-taxes&ticker=AON&period=max&api_key=YOUR_API_KEY");
const data = await res.json();