Aon plc

AONNYSEFinancial Services● Active

$326.52

$-2.01(-0.61%)

Market Cap$69.7B

P/E Ratio—

52W High$381

52W Low$304.59

Avg Volume1.4M

Open$325.49

Beta0.71

Free Cash Flow Financials Revenue

Aon plc (AON) Free Cash Flow & Analysis

Annual & trailing free cash flow, FCF margin, YoY change, valuation ratios, and peer context.

AON · free cash flow · updated Jun 8, 2026

Core FCF metrics

AON · FCF · TTM · margin & CAGR

Free cash flow was $3.22B for FY2025 (fiscal year ending 2025-12-31), up 14.2% year-over-year The FCF margin was 18.7%. Five-year CAGR stands at +4.0%.

FY2025 Free Cash Flow$3.22B▲ +14.2% YoY

Trailing 12M (TTM)$3.50Btrailing 4 quarters sum

FCF Margin18.7%$3.22B ÷ revenue

3-Year CAGR+2.1%FY2022 → FY2025

5-Year CAGR+4.0%FY2020 → FY2025

FormulaFCF = Operating Cash Flow − Capital ExpendituresTTM = trailing 4 quarters sumCAGR → N/A if either endpoint ≤ 0

Source: FMP /cash-flow-statement · SEC 10-K / 10-Q · USDUpdated: Jun 8, 2026

Annual free cash flow history

FCF ($B, upper) · YoY Growth % (lower)

Positive FCFNegative FCF

Free Cash Flow

YoY Growth %

Annual free cash flow data

AON · free cash flow history · annual / quarterly

Fiscal YearOperating CFCapExFree Cash FlowYoY ChangeFCF Margin

FY2025Latest$3.48B(263M)$3.22B▲ +14.2%18.7%

FY2024$3.04B(218M)$2.82B▼ 11.5%17.9%

FY2023$3.44B(252M)$3.18B▲ +5.3%23.8%

FY2022$3.22B(196M)$3.02B▲ +47.8%24.2%

FY2021$2.18B(137M)$2.04B▼ 22.6%16.8%

FCF = Operating Cash Flow − Capital Expenditures · CapEx shown as (negative) · Source: SEC filings via FMP

FCF valuation metrics

AON · P/FCF · FCF yield · FCF per share

Aon plc (AON) trades at a FCF yield of 5.03% and a price-to-free-cash-flow ratio of 20.1x. FCF per share stands at $16.26, calculated using trailing twelve-month FCF divided by basic weighted-average shares outstanding.

FCF Yield (TTM)

5.03%

Free Cash Flow ÷ Market Cap

per FMP freeCashFlowYieldTTM definition

FCF per Share (TTM)

$16.26

TTM FCF ÷ Shares Outstanding

Price / FCF

x20.1

Share Price ÷ FCF per Share

EV / FCF (TTM)

x23.9

Enterprise Value basis

Source: FMP /key-metrics-ttm · /cash-flow-statement Q · /income-statementFY2025 · 2025-12-31

Cash flow statement summary

AON · cash flow statement · operating / investing / financing

For FY2025, Aon plc generated $3.48B in operating cash flow and spent 263M in capital expenditures, yielding $3.22B in free cash flow.

Operating Activities

+$3.48B

Cash from core business operations

2025-12-31

Investing Activities

+$286.0M

CapEx, acquisitions & investments

2025-12-31

Financing Activities

−$4.21B

Buybacks, dividends & debt

2025-12-31

FCF FormulaOperating CF ($3.48B) − |CapEx| (263M) = FCF ($3.22B)

For the complete Operating / Investing / Financing line-item breakdown:

View Full Cash Flow Statement →

Free cash flow vs peers (Financial Services)

AON vs peers · FCF

#CompanyFree Cash FlowYoYFCF MarginRelative

Aon plcYOU

AON

$3.22B+14.2%18.7%

Berkshire Hathaway Inc.

BRK-B

$25.04B+115.6%6.7%

25%

Berkshire Hathaway Inc.

Mastercard Incorporated

$16.91B+18.2%51.6%

17%

Financial Services · Sorted by FCF · FMP /cash-flow-statementFull FCF Rankings →

About Free Cash Flow & Methodology

Aon plc (AON) reported free cash flow of $3.22B for FY2025 (fiscal year ending 2025-12-31), up 14.2% year-over-year. The FCF margin was 18.7%.

Based on available data, Aon plc has maintained positive free cash flow for at least 15 fiscal year(s). FCF peaked at $3.22B in FY2025. The 5-year CAGR stands at +4.0%.

Aon plc's FCF yield is 5.03% and price-to-FCF ratio is 20.1x for FY2025, based on the latest available data.

Data sourced from FMP /cash-flow-statement · SEC 10-K / 10-Q · USD.

Q&A and summaries align with SEC 10-K/10-Q cash flow disclosures and FMP /cash-flow-statement where noted.

Revenue Financial statements Net income Earnings Forecast Price history Market cap Cash on hand P/E ratio

Frequently asked questions

AON free cash flow · 8 questions

Aon plc free cash flow was $3.22B for FY2025, up 14.2% year-over-year. On a trailing twelve-month (TTM) basis, free cash flow stands at $3.50B.

AON free cash flowAON FCFAON FCF 2025AON free cash flow TTM

▸ Source: FMP /cash-flow-statement · US GAAP · Aon plc · Aon plc SEC 10-K & 10-Q filings · US GAAP · Last updated: Jun 8, 2026