Aon plc (AON) Earnings History
Growth Compounder36 years of earnings data (1990–2025) · Consistent double-digit EPS growth over 5 years
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Aon plc (AON) Earnings Overview
As of June 22, 2026, Aon plc (AON) reported trailing twelve-month net income of $3.94B, reflecting +36.3% year-over-year growth. The company earned $18.30 per diluted share over the past four quarters, with a net profit margin of 21.5%.
Looking at the long-term picture, AON's 5-year EPS compound annual growth rate (CAGR) stands at +15.0%, indicating exceptional earnings growth. The company achieved its highest annual net income of $3.69B in fiscal 2025, representing a new all-time high.
Aon plc maintains industry-leading profitability with a gross margin of 47.7%, operating margin of 25.3%, and net margin of 21.5%. This margin structure demonstrates strong pricing power and operational efficiency. View revenue history →
Compared to peers including MMC ($4.13B net income, 16.6% margin), WTW ($1.67B net income, 16.5% margin), AJG ($1.49B net income, 10.7% margin), AON has outperformed on profitability metrics. Compare AON vs MMC →
AON Earnings vs Peers
Earnings metrics vs comparable public companies
AON Historical Earnings Data (1990–2025)
36 years| Fiscal Year | Net Income | YoY % | Operating Income | EPS (Diluted) | Net Margin | Op. Margin |
|---|---|---|---|---|---|---|
| 2025 | $3.69B | +39.2% | $4.34B | $17.02 | 21.5% | 25.3% |
| 2024 | $2.65B | +3.5% | $3.83B | $12.49 | 16.9% | 24.4% |
| 2023 | $2.56B | -1.0% | $3.79B | $12.51 | 19.2% | 28.3% |
| 2022 | $2.59B | +106.3% | $3.67B | $12.14 | 20.7% | 29.4% |
| 2021 | $1.25B | -36.3% | $2.09B | $5.55 | 10.3% | 17.1% |
| 2020 | $1.97B | +28.5% | $2.78B | $8.45 | 17.8% | 25.1% |
| 2019 | $1.53B | +35.1% | $2.17B | $6.37 | 13.9% | 19.7% |
| 2018 | $1.13B | -7.5% | $1.54B | $4.59 | 10.5% | 14.3% |
| 2017 | $1.23B | -12.2% | $1.06B | $4.70 | 12.3% | 10.7% |
| 2016 | $1.40B | +0.8% | $1.81B | $5.16 | 14.8% | 19.2% |
| 2015 | $1.39B | -0.9% | $1.59B | $4.88 | 14.6% | 16.7% |
| 2014 | $1.40B | +25.5% | $1.97B | $4.66 | 11.6% | 16.3% |
| 2013 | $1.11B | +12.1% | $1.67B | $3.53 | 9.4% | 14.1% |
| 2012 | $993M | +1.4% | $1.60B | $2.99 | 8.6% | 13.9% |
| 2011 | $979M | +38.7% | $1.60B | $2.87 | 8.7% | 14.1% |
| 2010 | $706M | -5.5% | $1.24B | $2.37 | 8.3% | 14.6% |
| 2009 | $747M | -48.9% | $1.02B | $2.57 | 9.8% | 13.4% |
| 2008 | $1.46B | +69.2% | $940M | $4.91 | 19.4% | 12.5% |
| 2007 | $864M | +20.0% | $1.16B | $2.69 | 11.7% | 15.8% |
| 2006 | $720M | -2.0% | $795M | $2.13 | 10.5% | 11.6% |
| 2005 | $735M | +34.6% | $707M | $2.17 | 11.1% | 10.6% |
| 2004 | $546M | -13.1% | $1.02B | $1.63 | 5.4% | 10.0% |
| 2003 | $628M | +34.8% | $1.21B | $1.97 | 6.4% | 12.3% |
| 2002 | $466M | +217.0% | $917M | $1.61 | 6.3% | 12.3% |
| 2001 | $147M | -69.0% | $526M | $0.53 | 2.0% | 7.1% |
| 2000 | $474M | +34.7% | $994M | $1.79 | 6.5% | 13.6% |
| 1999 | $352M | -34.9% | $740M | $1.33 | 5.0% | 10.5% |
| 1998 | $541M | +80.9% | $1.02B | $2.07 | 8.3% | 15.7% |
| 1997 | $299M | -10.5% | $611M | $1.12 | 5.2% | 10.6% |
| 1996 | $334M | -17.1% | $486M | $1.26 | 8.6% | 12.5% |
| 1995 | $403M | +11.9% | $495M | $1.55 | 11.6% | 14.3% |
| 1994 | $360M | +11.2% | $584M | $1.37 | 8.7% | 14.0% |
| 1993 | $324M | +155.8% | $7.17B | $1.25 | 8.4% | 186.4% |
| 1992 | $127M | -47.7% | $6.34B | $0.52 | 3.8% | 190.0% |
| 1991 | $242M | +1.3% | $5.49B | $1.10 | 8.3% | 187.3% |
| 1990 | $239M | - | $4.88B | $1.07 | 9.1% | 185.9% |
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AON — Frequently Asked Questions
Quick answers to the most common questions about buying AON stock.
What is AON earnings per share (EPS)?
AON trailing twelve-month (TTM) diluted EPS is $18.30, reflecting +36.3% year-over-year growth. The 5-year EPS CAGR is +15.0%. Complete EPS history from 1990 to 2025 is available in the table on this page.
What is Aon plc's net income?
Aon plc (AON) trailing twelve-month net income is $3.9B as of 2025. Earnings grew +36.3% year-over-year. Aon plc has been profitable for 36 consecutive years.
Is AON profitable?
Yes, AON is profitable with a TTM net income of $3.9B and a net profit margin of +21.5%. Aon plc has generated profits for 36 consecutive years.
What is AON's earnings growth rate?
AON compound annual EPS growth rates (CAGR): 1-Year: +36.3%, 3-Year: +11.9%, 5-Year: +15.0%, 10-Year: +13.3%. These figures measure the annualised rate of diluted EPS growth over each period, based on data from 1990 to 2025.
What are AON's profit margins?
Aon plc net profit margin is +21.5%, operating margin is +25.3%, and gross margin is +47.7%. Above-average net margins reflect strong pricing power and competitive moat. Return on Equity is +46.3%.
Is AON growing earnings?
Yes, AON earnings are accelerating — EPS growth of +36.3% exceeds the 5-year CAGR of +15.0%. TTM net income reached $3.9B. Earnings momentum is strengthening.
What was AON's best earnings year?
Aon plc's highest annual net income on record is $3.7B, achieved in fiscal year 2025. Earnings history on this page spans 1990 to 2025 and includes all annual and quarterly figures.
What were AON's earnings last quarter?
AON's most recent reported quarter was Q1 2026. Net income was $1.2B with diluted EPS of $5.63. For a full breakdown of all quarters, see the quarterly earnings table on this page.