Aon plc (AON) Financial Statements & Historical Data

Aon plc (AON) — Price $321.64 (closing price, October 29, 2026) — Financial Services — Insurance - Brokers — NYSE

Latest reported results:

Detailed financial statements for Aon plc (AON): income statement, balance sheet and cash-flow summary. Track margins, debt, liquidity and profitability trends year over year: ten fiscal years free and up to 20 with Premium.

Aon plc operates as a professional services firm in the United States, rest of the Americas, the United Kingdom, Ireland, rest of Europe, the Middle East, Africa, and the Asia Pacific. It operates through Risk Capital and Human Capital segments.

Analysis Summary

Aon plc reported revenue of $17.18B in the most recent fiscal year, growing at a 5-year CAGR of 9.2%. Net income reached $3.69B, with a 13.4% 5-year CAGR.

Trailing-twelve-month margins: gross margin 83.1%, operating margin 27.0%, net margin 22.2%. Free cash flow grew at 4.0% CAGR over 5 years.

At $321.64 (closing price, October 29, 2026), AON trades at a P/E of 17.60 and an ROE of 40.38%. Market capitalisation stands at $68.2B, placing it among large-cap names.

Balance sheet quality for AON: current ratio of 1.1, net debt of $13.73B. A debt-to-equity below 1.0 typically signals conservative capital structure, while a current ratio above 1.5 indicates comfortable short-term liquidity.

Cash flow quality is decent: free cash flow of $3.22B represents 87% conversion of reported net income. High conversion (above 90%) suggests earnings translate cleanly into cash; lower conversion may indicate working capital tightness or accounting timing differences.

Income Statement (10y)

Year2016201720182019202020212022202320242025
Revenue$9.41B$10.00B$10.77B$11.01B$11.07B$12.19B$12.48B$13.38B$15.70B$17.18B
Cost of Revenue$5.51B$6.00B$6.10B$6.05B$5.91B$6.74B$6.48B$6.90B$8.28B$8.98B
Gross Profit$3.90B$4.00B$4.67B$4.96B$5.16B$5.46B$6.00B$6.47B$7.42B$8.20B
Research & Development0000000000
Selling, General & Admin$1.55B$1.71B$1.87B$1.72B$1.51B$2.54B$1.74B$1.86B$2.01B$1.56B
Operating Expenses$2.08B$2.93B$3.12B$2.79B$2.38B$3.37B$2.33B$2.69B$3.58B$3.85B
Operating Income$1.81B$1.06B$1.54B$2.17B$2.78B$2.09B$3.67B$3.79B$3.83B$4.34B
EBITDA$2.00B$1.86B$2.29B$2.74B$3.21B$2.58B$3.83B$3.91B$4.94B$5.35B
Interest Expense$282.0M$282.0M$278.0M$307.0M$334.0M$322.0M$406.0M$484.0M$788.0M$815.0M
Pre-tax Income$1.40B$685.0M$1.25B$1.87B$2.47B$1.93B$3.16B$3.17B$3.46B$4.76B
Income Tax$148.0M$250.0M$146.0M$297.0M$448.0M$623.0M$510.0M$541.0M$742.0M$1.01B
Net Income$1.40B$1.23B$1.13B$1.53B$1.97B$1.25B$2.59B$2.56B$2.65B$3.69B
EPS$5.21$4.74$4.62$6.42$8.49$5.59$12.23$12.60$12.55$17.13
EPS (Diluted)$5.16$4.70$4.59$6.37$8.45$5.55$12.14$12.51$12.49$17.02
Shares Outstanding (Diluted)270.3 M260.7 M247.0 M240.6 M233.1 M226.1 M213.2 M205.0 M212.5 M216.5 M

Income Statement (Quarterly)

Year2025-Q42026-Q12026-Q22026-Q3
Revenue$4.30B$5.03B$4.25B$4.10B
Gross Profit$3.59B$4.41B$4.87B$1.83B
Operating Income$1.34B$1.81B$823.0M$809.0M
EBITDA$2.63B$1.93B$1.12B$1.04B
Net Income$1.69B$1.21B$551.0M$476.0M
EPS$7.87$5.66$2.59$2.24
EPS (Diluted)$7.82$5.63$2.59$2.23

Balance Sheet (10y)

Year2016201720182019202020212022202320242025
Cash & Equivalents$431.0M$756.0M$656.0M$790.0M$884.0M$544.0M$690.0M$778.0M$1.08B$1.20B
Short-term Investments$290.0M$529.0M$172.0M$138.0M$308.0M$292.0M$452.0M$369.0M$10.54B$1.60B
Receivables$2.21B$2.62B$2.88B$3.20B$3.17B$3.15B$3.11B$3.29B$11.09B$14.82B
Inventory0000000000
Total Current Assets$13.15B$13.68B$14.37B$16.48B$18.68B$19.03B$20.72B$21.70B$23.43B$25.77B
Property, Plant & Equipment$765.0M$564.0M$588.0M$1.55B$1.60B$1.31B$1.26B$1.31B$1.36B$1.38B
Goodwill$8.75B$8.36B$8.17B$8.16B$8.67B$8.43B$8.29B$8.41B$15.23B$15.80B
Intangible Assets$2.22B$1.73B$1.15B$783.0M$640.0M$492.0M$447.0M$234.0M$6.74B$5.73B
Total Assets$26.61B$26.09B$26.42B$29.41B$32.11B$31.93B$32.70B$33.96B$48.97B$50.78B
Accounts Payable$1.60B$1.96B$1.94B$1.94B$2.02B$2.19B$2.11B$2.26B$2.90B$2.86B
Short-term Debt$336.0M$299.0M$251.0M$712.0M$448.0M$1.16B$945.0M$1.20B$751.0M$589.0M
Total Current Liabilities$12.49B$12.76B$13.30B$15.57B$17.42B$19.07B$20.31B$21.65B$23.00B$23.23B
Long-term Debt$5.87B$5.67B$5.99B$6.63B$7.28B$8.23B$9.82B$9.99B$16.27B$15.30B
Total Liabilities$21.08B$21.44B$22.20B$25.96B$28.52B$30.77B$33.13B$34.70B$42.53B$41.24B
Retained Earnings$3.81B$2.30B$2.09B$1.25B$1.04B-$1.69B-$2.77B-$3.40B-$2.31B-$245.0M
Total Equity$5.47B$4.58B$4.15B$3.38B$3.50B$1.06B-$529.0M-$826.0M$6.12B$9.35B
Total Debt$6.34B$6.12B$6.41B$8.57B$8.93B$10.42B$11.68B$12.03B$17.89B$16.53B
Net Debt$5.62B$4.83B$5.58B$7.64B$7.73B$9.59B$10.54B$10.88B$6.27B$13.73B
Working Capital$651.0M$922.0M$1.08B$905.0M$1.25B-$41.0M$417.0M$53.0M$437.0M$2.55B

Balance Sheet (Quarterly)

Year2025-Q42026-Q12026-Q22026-Q3
Cash & Equivalents$1.20B$1.18B$1.06B$2.02B
Total Assets$50.78B$51.43B$53.35B$65.14B
Total Liabilities$41.24B$41.47B$43.64B$54.92B
Total Equity$9.35B$9.83B$9.66B$10.10B
Total Debt$16.53B$15.47B$15.87B$28.77B

Cash Flow (10y)

Year2016201720182019202020212022202320242025
Net Income$1.43B$1.26B$1.17B$1.57B$2.02B$1.31B$2.65B$2.56B$2.72B$3.69B
Depreciation & Amortization$319.0M$891.0M$769.0M$564.0M$413.0M$326.0M$264.0M$256.0M$686.0M$966.0M
Stock-based Compensation$331.0M$319.0M$338.0M$317.0M$312.0M$449.0M$397.0M$438.0M$474.0M0
Change in Working Capital$119.0M-$984.0M-$302.0M-$571.0M$57.0M$230.0M$48.0M$462.0M-$63.0M-$192.0M
Operating Cash Flow$2.33B$734.0M$1.69B$1.83B$2.78B$2.18B$3.22B$3.44B$3.04B$3.48B
Capital Expenditure-$222.0M-$183.0M-$240.0M-$225.0M-$141.0M-$137.0M-$196.0M-$252.0M-$218.0M-$263.0M
Acquisitions-$772.0M$3.22B-$68.0M$13.0M-$338.0M$204.0M-$81.0M-$30.0M-$2.81B$1.96B
Stock Repurchased-$1.26B-$2.40B-$1.47B-$1.96B-$1.76B-$3.54B-$3.20B-$2.70B-$1.00B-$1.00B
Dividends Paid-$345.0M-$364.0M-$382.0M-$410.0M-$412.0M-$447.0M-$463.0M-$489.0M-$562.0M-$629.0M
Free Cash Flow$2.10B$551.0M$1.45B$1.61B$2.64B$2.04B$3.02B$3.18B$2.82B$3.22B

Cash Flow (Quarterly)

Year2025-Q42026-Q12026-Q22026-Q3
Operating Cash Flow$1.40B$430.0M$556.0M$1.19B
Capital Expenditure-$74.0M-$67.0M-$73.0M-$94.0M
Free Cash Flow$1.32B$363.0M$483.0M$1.10B
Dividends Paid-$161.0M-$162.0M-$175.0M-$174.0M
Stock-based Compensation0$82.0M$122.0M$104.0M

Growth & Margins (10y)

Year2016201720182019202020212022202320242025
Revenue Growth (YoY)+6.3%+7.7%+2.3%+0.5%+10.2%+2.3%+7.2%+17.4%+9.4%
Net Income Growth (YoY)-12.2%-7.5%+35.1%+28.5%-36.3%+106.3%-1.0%+3.5%+39.2%
EPS Growth (YoY)-9.0%-2.5%+39.0%+32.2%-34.2%+118.8%+3.0%-0.4%+36.5%
Shares Change (YoY)-3.6%-5.3%-2.6%-3.1%-3.0%-5.7%-3.8%+3.7%+1.9%
FCF Growth (YoY)-73.8%+162.4%+11.3%+64.1%-22.6%+47.8%+5.3%-11.5%+14.2%
Gross Margin41.4%40.0%43.3%45.0%46.6%44.7%48.1%48.4%47.2%47.7%
Operating Margin19.2%10.7%14.3%19.7%25.1%17.1%29.4%28.3%24.4%25.3%
EBITDA Margin21.3%18.6%21.3%24.9%29.0%21.2%30.7%29.2%31.4%31.1%
Net Margin14.8%12.3%10.5%13.9%17.8%10.3%20.7%19.2%16.9%21.5%
FCF Margin22.4%5.5%13.4%14.6%23.9%16.8%24.2%23.8%17.9%18.7%
Effective Tax Rate10.6%36.5%11.7%15.9%18.2%32.3%16.2%17.1%21.4%21.2%

Per-Share Data (10y)

Year2016201720182019202020212022202320242025
FCF Per Share$7.78$2.11$5.85$6.69$11.33$9.04$14.18$15.53$13.26$14.86
Dividends Per Share$1.28$1.40$1.55$1.70$1.77$1.98$2.17$2.39$2.64$2.91
Shares Outstanding (Basic)267.9 M258.5 M245.2 M238.6 M231.9 M224.7 M211.7 M203.5 M211.4 M215.1 M

What to look at in Insurance

Insurers earn in 2 ways: underwriting well (combined ratio) and investing the float. Buffett built Berkshire that way.

Profitability

Return on Equity40.38%
Return on Invested Capital8.97%
Return on Assets6.04%
Gross Margin83.13%
Operating Margin27.01%
Net Margin22.24%

Financial Health

Debt / Equity2.85
Current Ratio1.58
Piotroski F-Score7
Altman Z-Score1.78

Key Ratios (10y)

Year2016201720182019202020212022202320242025
P/E21.4128.2731.4632.4424.8853.7724.5423.1028.6220.60
P/B5.467.568.5914.7314.0263.65-120.11-71.7012.408.12
P/S3.183.463.314.514.435.545.094.434.844.42
Gross Margin41.4%40.0%43.3%45.0%46.6%44.7%48.1%48.4%47.2%47.7%
Operating Margin19.2%10.7%14.3%19.7%25.1%17.1%29.4%28.3%24.4%25.3%
Net Margin14.8%12.3%10.5%13.9%17.8%10.3%20.7%19.2%16.9%21.5%

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