What is the current annual net margin of AON?

As of today, AON annual net margin is 21.83%

What is 1-year change in AON annual net margin?

AON annual net margin is up +26.40% year-over-year

What is 3-year change in AON annual net margin?

AON annual net margin is up +2.97% over the past 3 years

How far is AON annual net margin from its all-time high?

AON annual net margin is currently at its all-time high

How does AON annual net margin rank versus sector peers?

AON annual net margin is higher than 73.51% of companies in Financial Services sector

When is AON next annual earnings release?

As of today, the next annual earnings release for AON has not been scheduled

What is the current quarterly net margin of AON?

As of today, AON quarterly net margin is 13.31%

What is AON quarterly net margin most recent change?

AON quarterly net margin was down -45.92% on June 30, 2026

What is 1-year change in AON quarterly net margin?

AON quarterly net margin is down -4.93% year-over-year

How far is AON quarterly net margin from its all-time high?

AON quarterly net margin is currently -66.42% below its historical high of 39.64% set on December 31, 2025

How does AON quarterly net margin rank versus sector peers?

AON quarterly net margin is higher than 40.80% of companies in Financial Services sector

When is AON next earnings release?

The next earnings release for AON is on October 30, 2026

Aon Plc (AON) Net Margin History & Chart Since 1980

Annual Net Margin

21.83%4.56%+26.40%

December 31, 2025

Summary

Current Value: As of today, AON annual net margin is 21.83%, up +26.40% on December 31, 2025
Historical Performance: AON annual net margin is up +2.97% over the past 3 years, up +19.62% over the past 5 years
All-Time High Comparison: AON annual net margin is currently at its all-time high
3-Year Low Comparison: AON annual net margin is +26.40% above its 3-year low of 17.27% reached on December 31, 2024
Sector Comparison: AON annual net margin is higher than 73.51% of companies in Financial Services sector

Net Margin Chart

beforeafter

Performance

AON Performance
Metric	Date	Value	1Y	3Y	5Y	15Y
Annual Net Margin	Dec 31, 25	21.83%	+26.4%	+3.0%	+19.6%	+144.7%
Quarterly Net Margin	Jun 30, 26	13.31%	-4.9%	-25.9%	-2.3%	+41.1%
Price	Aug 28, 26	$355.40	-3.0%	+7.2%	+24.6%	+671.9%
PE Ratio	Aug 28, 26	19.60	-36.1%	-24.1%	-37.4%	+12.1%
Annual Revenue	Dec 31, 25	$17.29B	+9.8%	+38.5%	+56.4%	+103.2%
Annual Net Income	Dec 31, 25	$3.75B	+37.9%	+41.7%	+85.9%	+394.1%
Annual Gross Margin	Dec 31, 25	0.00%	-100.0%	-100.0%	-100.0%	-100.0%
Annual Operating Margin	Dec 31, 25	27.41%	+1.0%	-8.3%	+9.4%	+60.4%

Net Margin Highs

AON Annual Net Margin Highs Comparison
Period	High	Date	Current
3Y	21.83%	Dec 31, 25	at high
5Y	21.83%	Dec 31, 25	at high
All	21.83%	Dec 31, 25	at high

Net Margin Lows

AON Annual Net Margin Lows Comparison
Period	Low	Date	Current
3Y	17.27%	Dec 31, 24	+26.4%
5Y	10.77%	Dec 31, 21	+102.7%
All	3.12%	Dec 31, 01	+599.7%

Net Margin History

Year	Value	Change
2025	21.83%	+26.4%
2024	17.27%	-11.9%
2023	19.61%	-7.5%
2022	21.20%	+96.8%
2021	10.77%	-41.0%
2020	18.25%	+27.3%
2019	14.34%	+39.8%
2018	10.26%	+135.9%
2017	4.35%	-67.4%
2016	13.35%	+9.2%
2015	12.22%	+2.8%
2014	11.89%	+22.6%
2013	9.70%	+9.1%
2012	8.89%	-0.4%
2011	8.93%	+0.1%
2010	8.92%	-0.7%
2009	8.98%	+9.6%
2008	8.19%	-8.9%
2007	8.99%	+29.0%
2006	6.97%	-19.4%
2005	8.65%	+57.8%
2004	5.48%	-23.8%
2003	7.19%	+28.4%

Year	Value	Change
2002	5.60%	+79.5%
2001	3.12%	-56.2%
2000	7.13%	+28.7%
1999	5.54%	-38.0%
1998	8.94%	+52.3%
1997	5.87%	-21.6%
1996	7.49%	-14.3%
1995	8.74%	+1.5%
1994	8.61%	+2.6%
1993	8.39%	+36.6%
1992	6.14%	-25.2%
1991	8.21%	-9.3%
1990	9.05%	-9.0%
1989	9.94%	+49.9%
1988	6.63%	+4.1%
1987	6.37%	-50.7%
1986	12.93%	-0.8%
1985	13.03%	+3.7%
1984	12.56%	+39.6%
1983	9.00%	+15.1%
1982	7.82%	-24.4%
1981	10.35%	-18.4%
1980	12.68%	-

FAQ

What is the current annual net margin of AON?: As of today, AON annual net margin is 21.83%
What is 1-year change in AON annual net margin?: AON annual net margin is up +26.40% year-over-year
What is 3-year change in AON annual net margin?: AON annual net margin is up +2.97% over the past 3 years
How far is AON annual net margin from its all-time high?: AON annual net margin is currently at its all-time high
How does AON annual net margin rank versus sector peers?: AON annual net margin is higher than 73.51% of companies in Financial Services sector
When is AON next annual earnings release?: As of today, the next annual earnings release for AON has not been scheduled

Net Margin Formula

Net Margin = Net Income

Revenue × 100%

Quarterly Net Margin

13.31%11.30%-45.92%

June 30, 2026

Summary

Current Value: As of today, AON quarterly net margin is 13.31%, down -45.92% on June 30, 2026
Historical Performance: AON quarterly net margin is down -4.93% year-over-year, down -25.93% over the past 3 years
All-Time High Comparison: AON quarterly net margin is currently -66.42% below its historical high of 39.64% set on December 31, 2025
3-Year Low Comparison: AON quarterly net margin is +39.52% above its 3-year low of 9.54% reached on September 30, 2024
Sector Comparison: AON quarterly net margin is higher than 40.80% of companies in Financial Services sector

Performance

AON Performance
Metric	Date	Value	3M	1Y	3Y	5Y
Quarterly Net Margin	Jun 30, 26	13.31%	-45.9%	-4.9%	-25.9%	-2.3%
Annual Net Margin	Dec 31, 25	21.83%	–	+26.4%	+3.0%	+19.6%
Price	Aug 28, 26	$355.40	+11.7%	-3.0%	+7.2%	+24.6%
PE Ratio	Aug 28, 26	19.60	+12.2%	-36.1%	-24.1%	-37.4%
Quarterly Revenue	Jun 30, 26	$4.25B	-15.7%	+0.1%	+32.7%	+47.1%
Quarterly Net Income	Jun 30, 26	$565.00M	-54.4%	-4.9%	-1.7%	+43.8%
Quarterly Gross Margin	Jun 30, 26	88.93%	-2.9%	-0.0%	-3.2%	-2.0%
Quarterly Operating Margin	Jun 30, 26	23.83%	-33.6%	-2.9%	-11.8%	+2.4%

Quarterly Net Margin Highs

AON Quarterly Net Margin Highs Comparison
Period	High	Date	Current
1Y	39.64%	Dec 31, 25	-66.4%
3Y	39.64%	Dec 31, 25	-66.4%
5Y	39.64%	Dec 31, 25	-66.4%
All	39.64%	Dec 31, 25	-66.4%

Quarterly Net Margin Lows

AON Quarterly Net Margin Lows Comparison
Period	Low	Date	Current
1Y	11.76%	Sep 30, 25	+13.2%
3Y	9.54%	Sep 30, 24	+39.5%
5Y	-33.20%	Sep 30, 21	+140.1%
All	-33.20%	Sep 30, 21	+140.1%

Quarterly Net Margin History

Month	Value	Change
Jun 2026	13.31%	-45.9%
Mar 2026	24.61%	-37.9%
Dec 2025	39.64%	+237.1%
Sep 2025	11.76%	-16.0%
Jun 2025	14.00%	-32.3%
Mar 2025	20.68%	+16.2%
Dec 2024	17.79%	+86.5%
Sep 2024	9.54%	-33.5%
Jun 2024	14.35%	-45.5%
Mar 2024	26.34%	+75.7%
Dec 2023	14.99%	-5.6%
Sep 2023	15.88%	-11.6%
Jun 2023	17.97%	-35.4%
Mar 2023	27.82%	+31.7%
Dec 2022	21.13%	+34.8%
Sep 2022	15.68%	-9.6%
Jun 2022	17.34%	-38.8%
Mar 2022	28.32%	-0.5%
Dec 2021	28.46%	+185.7%
Sep 2021	-33.20%	-343.8%
Jun 2021	13.62%	-48.7%
Mar 2021	26.57%	+48.7%
Dec 2020	17.87%	+52.6%
Sep 2020	11.71%	-28.8%
Jun 2020	16.45%	-34.1%
Mar 2020	24.95%	+88.3%
Dec 2019	13.25%	+36.5%
Sep 2019	9.71%	-12.3%
Jun 2019	11.07%	-48.5%
Mar 2019	21.51%	+108.0%
Dec 2018	10.34%	+56.4%
Sep 2018	6.61%	+193.8%
Jun 2018	2.25%	-88.5%
Mar 2018	19.57%	+3,216.9%
Dec 2017	0.59%	-92.9%
Sep 2017	8.33%	+557.7%
Jun 2017	-1.82%	-116.4%
Mar 2017	11.10%	-23.7%
Dec 2016	14.55%	+12.8%
Sep 2016	12.90%	+7.3%
Jun 2016	12.02%	-12.3%
Mar 2016	13.71%	-24.1%
Dec 2015	18.06%	+63.6%
Sep 2015	11.04%	+65.0%
Jun 2015	6.69%	-44.4%
Mar 2015	12.03%	-14.9%
Dec 2014	14.14%	+29.6%
Sep 2014	10.91%	+2.0%
Jun 2014	10.70%	-6.9%
Mar 2014	11.49%	+2.1%
Dec 2013	11.25%	+20.6%
Sep 2013	9.33%	+7.2%
Jun 2013	8.70%	-6.8%
Mar 2013	9.33%	-5.5%
Dec 2012	9.87%	+29.0%
Sep 2012	7.65%	-15.7%
Jun 2012	9.07%	+3.9%
Mar 2012	8.73%	-6.4%
Dec 2011	9.33%	+22.1%
Sep 2011	7.64%	-19.0%
Jun 2011	9.43%	+3.2%
Mar 2011	9.14%	+9.7%
Dec 2010	8.33%	+2.1%
Sep 2010	8.16%	-15.8%
Jun 2010	9.69%	-0.7%
Mar 2010	9.76%	+35.0%
Dec 2009	7.23%	+0.4%
Sep 2009	7.20%	-13.3%
Jun 2009	8.30%	-34.9%
Mar 2009	12.74%	+91.9%
Dec 2008	6.64%	-20.2%
Sep 2008	8.32%	-2.7%
Jun 2008	8.55%	-8.6%
Mar 2008	9.35%	-47.5%
Dec 2007	17.80%	+127.9%
Sep 2007	7.81%	-18.4%
Jun 2007	9.57%	+7.5%
Mar 2007	8.90%	+14.2%
Dec 2006	7.79%	+87.7%
Sep 2006	4.15%	-48.0%
Jun 2006	7.98%	+1.7%
Mar 2006	7.85%	+37.7%
Dec 2005	5.70%	+12.2%
Sep 2005	5.08%	-33.6%
Jun 2005	7.65%	-3.9%

Month	Value	Change
Mar 2005	7.96%	+255.4%
Dec 2004	2.24%	-55.6%
Sep 2004	5.04%	-28.8%
Jun 2004	7.08%	-5.1%
Mar 2004	7.46%	-18.2%
Dec 2003	9.12%	+120.3%
Sep 2003	4.14%	-34.7%
Jun 2003	6.34%	-4.8%
Mar 2003	6.66%	-11.6%
Dec 2002	7.53%	+22.6%
Sep 2002	6.14%	+1,264.4%
Jun 2002	0.45%	-91.8%
Mar 2002	5.48%	+28.9%
Dec 2001	4.25%	-0.9%
Sep 2001	4.29%	+111.3%
Jun 2001	2.03%	+26.9%
Mar 2001	1.60%	-69.9%
Dec 2000	5.32%	-36.3%
Sep 2000	8.35%	+9.3%
Jun 2000	7.64%	+3.9%
Mar 2000	7.35%	+474.2%
Dec 1999	1.28%	-84.7%
Sep 1999	8.36%	-10.5%
Jun 1999	9.34%	+164.6%
Mar 1999	3.53%	-60.6%
Dec 1998	8.96%	+7.2%
Sep 1998	8.36%	-9.4%
Jun 1998	9.23%	-3.0%
Mar 1998	9.52%	+18.7%
Dec 1997	8.02%	+4.7%
Sep 1997	7.66%	+15.0%
Jun 1997	6.66%	+851.4%
Mar 1997	0.70%	-83.6%
Dec 1996	4.28%	-51.7%
Sep 1996	8.87%	+26.7%
Jun 1996	7.00%	-31.6%
Mar 1996	10.24%	+183.3%
Dec 1995	-12.30%	-240.6%
Sep 1995	8.75%	+1.2%
Jun 1995	8.65%	-11.4%
Mar 1995	9.76%	+22.6%
Dec 1994	7.96%	-5.4%
Sep 1994	8.41%	-2.1%
Jun 1994	8.59%	-11.6%
Mar 1994	9.72%	+22.0%
Dec 1993	7.97%	-2.2%
Sep 1993	8.15%	-0.7%
Jun 1993	8.21%	-12.4%
Mar 1993	9.37%	+202.5%
Dec 1992	-9.14%	-215.1%
Sep 1992	7.94%	-6.0%
Jun 1992	8.45%	-9.4%
Mar 1992	9.33%	+17.5%
Dec 1991	7.94%	-4.7%
Sep 1991	8.33%	-1.1%
Jun 1991	8.42%	+1.0%
Mar 1991	8.34%	+11.9%
Dec 1990	7.45%	-20.9%
Sep 1990	9.42%	-8.2%
Jun 1990	10.26%	+8.1%
Mar 1990	9.49%	-13.6%
Dec 1989	10.98%	+12.5%
Sep 1989	9.76%	-9.3%
Jun 1989	10.76%	+15.1%
Mar 1989	9.35%	+67.0%
Dec 1988	5.60%	-9.7%
Sep 1988	6.20%	-21.1%
Jun 1988	7.86%	+13.1%
Mar 1988	6.95%	+14.7%
Dec 1987	6.06%	-17.4%
Sep 1987	7.34%	-20.0%
Jun 1987	9.18%	+16.2%
Mar 1987	7.90%	-18.6%
Dec 1986	9.71%	-0.3%
Sep 1986	9.74%	-8.9%
Jun 1986	10.69%	-2.1%
Mar 1986	10.92%	-9.2%
Dec 1985	12.02%	-3.5%
Sep 1985	12.46%	+0.5%
Jun 1985	12.40%	+18.7%
Mar 1985	10.45%	-45.4%
Dec 1984	19.14%	+74.0%
Sep 1984	11.00%	-1.5%
Jun 1984	11.17%	+17.0%
Mar 1984	9.55%	-

FAQ

What is the current quarterly net margin of AON?: As of today, AON quarterly net margin is 13.31%
What is AON quarterly net margin most recent change?: AON quarterly net margin was down -45.92% on June 30, 2026
What is 1-year change in AON quarterly net margin?: AON quarterly net margin is down -4.93% year-over-year
How far is AON quarterly net margin from its all-time high?: AON quarterly net margin is currently -66.42% below its historical high of 39.64% set on December 31, 2025
How does AON quarterly net margin rank versus sector peers?: AON quarterly net margin is higher than 40.80% of companies in Financial Services sector
When is AON next earnings release?: The next earnings release for AON is on October 30, 2026

Net Margin Formula

Net Margin = Net Income

Revenue × 100%

Data Sources & References

AON Official Website www.aon.com
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/315293/000162828026004273/0001628280-26-004273-index.htm
AON Profile on Yahoo Finance finance.yahoo.com/quote/AON
AON Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/aon