What is the current annual interest expense of MMC?

As of today, MMC annual interest expense is $700.00M

What is 1-year change in MMC annual interest expense?

MMC annual interest expense is up +21.11% year-over-year

What is 3-year change in MMC annual interest expense?

MMC annual interest expense is up +57.66% over the past 3 years

How far is MMC annual interest expense from its all-time high?

MMC annual interest expense vs all-time high is unknown

When is MMC next annual earnings release?

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

What is the current quarterly interest expense of MMC?

As of today, MMC quarterly interest expense is $237.00M

What is MMC quarterly interest expense most recent change?

MMC quarterly interest expense was down -2.47% on September 30, 2025

What is 1-year change in MMC quarterly interest expense?

MMC quarterly interest expense is up +53.90% year-over-year

How far is MMC quarterly interest expense from its all-time high?

MMC quarterly interest expense vs all-time high is unknown

When is MMC next earnings release?

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

What is the current TTM interest expense of MMC?

As of today, MMC TTM interest expense is $956.00M

What is MMC TTM interest expense most recent change?

MMC TTM interest expense was up +9.51% on September 30, 2025

What is 1-year change in MMC TTM interest expense?

MMC TTM interest expense is up +54.19% year-over-year

How far is MMC TTM interest expense from its all-time high?

MMC TTM interest expense vs all-time high is unknown

When is MMC next earnings release?

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

MMC Interest Expense History & Chart Since 1980

Annual Interest Expense

$700.00M$122.00M+21.11%

December 31, 2024

Summary

Current Value: As of today, MMC annual interest expense is $700.00M, up +21.11% on December 31, 2024
Historical Performance: MMC annual interest expense is up +57.66% over the past 3 years, up +33.59% over the past 5 years
All-Time High Comparison: MMC annual interest expense vs all-time high is unknown
3-Year Low Comparison: MMC annual interest expense vs 3-year low value is unknown

Interest Expense Chart

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Performance

MMC Performance
Metric	Date	Value	1Y	3Y	5Y	15Y
	Dec 31, 24	$700.00M	+21.1%	+57.7%	+33.6%	+190.5%
	Sep 30, 25	$237.00M	+53.9%	+100.8%	+85.2%	+295.0%
	Sep 30, 25	$956.00M	+54.2%	+112.0%	+84.9%	+296.7%
Price	Mar 11, 26	$173.97	-24.3%	+10.7%	+47.6%	+474.7%
	Dec 31, 24	8.75	-15.2%	-17.7%	+44.9%	+95.8%
	Dec 31, 24	$6.13B	+2.8%	+29.8%	+93.6%	+469.0%
Annual Total Debt	Dec 31, 24	$21.86B	+41.6%	+66.1%	+53.7%	+508.6%
Annual Revenue	Dec 31, 24	$24.42B	+7.3%	+22.8%	+46.4%	+132.6%

Interest Expense Highs

MMC Annual Interest Expense Highs Comparison
Period	High	Date	Current
3Y	$700.00M	Dec 31, 24	N/A
5Y	$700.00M	Dec 31, 24	N/A
All	$700.00M	Dec 31, 24	N/A

Interest Expense Lows

MMC Annual Interest Expense Lows Comparison
Period	Low	Date	Current
3Y	$469.00M	N/A	N/A
5Y	$444.00M	Dec 31, 21	N/A
All	$5.30M	Dec 31, 86	N/A

Interest Expense History

Year	Value	Change
2024	$700.00M	+21.1%
2023	$578.00M	+23.2%
2022	$469.00M	+5.6%
2021	$444.00M	-13.8%
2020	$515.00M	-1.7%
2019	$524.00M	+80.7%
2018	$290.00M	+22.4%
2017	$237.00M	+25.4%
2016	$189.00M	+16.0%
2015	$163.00M	-1.2%
2014	$165.00M	-1.2%
2013	$167.00M	-7.7%
2012	$181.00M	-9.0%
2011	$199.00M	-14.6%
2010	$233.00M	-3.3%
2009	$241.00M	+9.5%
2008	$220.00M	-17.6%
2007	$267.00M	-11.9%
2006	$303.00M	-8.7%
2005	$332.00M	+51.6%
2004	$219.00M	+18.4%
2003	$185.00M	+15.6%
2002	$160.00M	-18.4%

Year	Value	Change
2001	$196.00M	-20.6%
2000	$247.00M	+6.0%
1999	$233.00M	+66.4%
1998	$140.00M	+31.6%
1997	$106.40M	+72.7%
1996	$61.60M	-1.9%
1995	$62.80M	+24.1%
1994	$50.60M	+9.8%
1993	$46.10M	+20.4%
1992	$38.30M	-2.0%
1991	$39.10M	+26.1%
1990	$31.00M	+64.0%
1989	$18.90M	-18.2%
1988	$23.10M	+77.7%
1987	$13.00M	+145.3%
1986	$5.30M	-78.9%
1985	$25.10M	+72.8%
1984	$14.52M	+8.7%
1983	$13.36M	-49.0%
1982	$26.17M	+17.0%
1981	$22.37M	+1.2%
1980	$22.10M	-

FAQ

What is the current annual interest expense of MMC?
As of today, MMC annual interest expense is $700.00M
What is 1-year change in MMC annual interest expense?
MMC annual interest expense is up +21.11% year-over-year
What is 3-year change in MMC annual interest expense?
MMC annual interest expense is up +57.66% over the past 3 years
How far is MMC annual interest expense from its all-time high?
MMC annual interest expense vs all-time high is unknown
When is MMC next annual earnings release?
As of today, the next annual earnings release for MMC has not been scheduled

Quarterly Interest Expense

$237.00M$6.00M-2.47%

September 30, 2025

Summary

Current Value: As of today, MMC quarterly interest expense is $237.00M, down -2.47% on September 30, 2025
Historical Performance: MMC quarterly interest expense is up +53.90% year-over-year, up +100.85% over the past 3 years
All-Time High Comparison: MMC quarterly interest expense vs all-time high is unknown
3-Year Low Comparison: MMC quarterly interest expense vs 3-year low value is unknown

Performance

MMC Performance
Metric	Date	Value	3M	1Y	3Y	5Y
	Sep 30, 25	$237.00M	-2.5%	+53.9%	+100.8%	+85.2%
	Dec 31, 24	$700.00M	–	+21.1%	+57.7%	+33.6%
	Sep 30, 25	$956.00M	+9.5%	+54.2%	+112.0%	+84.9%
Price	Mar 11, 26	$173.97	-6.6%	-24.3%	+10.7%	+47.6%
	Sep 30, 25	4.94	-39.4%	-39.5%	-35.3%	-2.4%
	Sep 30, 25	$1.17B	-40.9%	-6.9%	+30.0%	+80.6%
Quarterly Total Debt	Sep 30, 25	$21.43B	-0.8%	+45.0%	+61.3%	+43.0%
Quarterly Revenue	Sep 30, 25	$6.37B	-8.8%	+11.7%	+33.5%	+61.0%

Quarterly Interest Expense Highs

MMC Quarterly Interest Expense Highs Comparison
Period	High	Date	Current
1Y	$245.00M	Mar 31, 25	N/A
3Y	$245.00M	Mar 31, 25	N/A
5Y	$245.00M	Mar 31, 25	N/A
All	$245.00M	Mar 31, 25	N/A

Quarterly Interest Expense Lows

MMC Quarterly Interest Expense Lows Comparison
Period	Low	Date	Current
1Y	$231.00M	N/A	N/A
3Y	$127.00M	N/A	N/A
5Y	$107.00M	Sep 30, 21	N/A
All	$11.60M	Mar 31, 94	N/A

Quarterly Interest Expense History

Month	Value	Change
Sep 2025	$237.00M	-2.5%
Jun 2025	$243.00M	-0.8%
Mar 2025	$245.00M	+6.1%
Dec 2024	$231.00M	+50.0%
Sep 2024	$154.00M	-1.3%
Jun 2024	$156.00M	-1.9%
Mar 2024	$159.00M	+5.3%
Dec 2023	$151.00M	+4.1%
Sep 2023	$145.00M	-0.7%
Jun 2023	$146.00M	+7.4%
Mar 2023	$136.00M	+7.1%
Dec 2022	$127.00M	+7.6%
Sep 2022	$118.00M	+3.5%
Jun 2022	$114.00M	+3.6%
Mar 2022	$110.00M	+0.9%
Dec 2021	$109.00M	+1.9%
Sep 2021	$107.00M	-2.7%
Jun 2021	$110.00M	-6.8%
Mar 2021	$118.00M	-7.8%
Dec 2020	$128.00M	0.0%
Sep 2020	$128.00M	-3.0%
Jun 2020	$132.00M	+3.9%
Mar 2020	$127.00M	-2.3%
Dec 2019	$130.00M	-2.3%
Sep 2019	$133.00M	-5.7%
Jun 2019	$141.00M	+17.5%
Mar 2019	$120.00M	+30.4%
Dec 2018	$92.00M	+33.3%
Sep 2018	$69.00M	+1.5%
Jun 2018	$68.00M	+11.5%
Mar 2018	$61.00M	+3.4%
Dec 2017	$59.00M	-1.7%
Sep 2017	$60.00M	0.0%
Jun 2017	$60.00M	+3.4%
Mar 2017	$58.00M	+20.8%
Dec 2016	$48.00M	+2.1%
Sep 2016	$47.00M	-2.1%
Jun 2016	$48.00M	+4.3%
Mar 2016	$46.00M	0.0%
Dec 2015	$46.00M	+12.2%
Sep 2015	$41.00M	+2.5%
Jun 2015	$40.00M	+11.1%
Mar 2015	$36.00M	0.0%
Dec 2014	$36.00M	-20.0%
Sep 2014	$45.00M	+7.1%
Jun 2014	$42.00M	0.0%
Mar 2014	$42.00M	-2.3%
Dec 2013	$43.00M	+7.5%
Sep 2013	$40.00M	0.0%
Jun 2013	$40.00M	-9.1%
Mar 2013	$44.00M	-4.3%
Dec 2012	$46.00M	+4.5%
Sep 2012	$44.00M	-2.2%
Jun 2012	$45.00M	-2.2%
Mar 2012	$46.00M	-8.0%
Dec 2011	$50.00M	+2.0%
Sep 2011	$49.00M	0.0%
Jun 2011	$49.00M	-3.9%
Mar 2011	$51.00M	-3.8%
Dec 2010	$53.00M	-11.7%
Sep 2010	$60.00M	0.0%
Jun 2010	$60.00M	0.0%
Mar 2010	$60.00M	-1.6%
Dec 2009	$61.00M	+3.4%

Month	Value	Change
Sep 2009	$59.00M	-9.2%
Jun 2009	$65.00M	+16.1%
Mar 2009	$56.00M	+1.8%
Dec 2008	$55.00M	+1.9%
Sep 2008	$54.00M	-1.8%
Jun 2008	$55.00M	-1.8%
Mar 2008	$56.00M	0.0%
Dec 2007	$56.00M	-13.8%
Sep 2007	$65.00M	-13.3%
Jun 2007	$75.00M	+5.6%
Mar 2007	$71.00M	-1.4%
Dec 2006	$72.00M	-4.0%
Sep 2006	$75.00M	-3.8%
Jun 2006	$78.00M	0.0%
Mar 2006	$78.00M	-1.3%
Dec 2005	$79.00M	-28.8%
Sep 2005	$111.00M	+52.1%
Jun 2005	$73.00M	+5.8%
Mar 2005	$69.00M	+4.5%
Dec 2004	$66.00M	+20.0%
Sep 2004	$55.00M	+14.6%
Jun 2004	$48.00M	-4.0%
Mar 2004	$50.00M	+4.2%
Dec 2003	$48.00M	0.0%
Sep 2003	$48.00M	+4.3%
Jun 2003	$46.00M	+7.0%
Mar 2003	$43.00M	+2.4%
Dec 2002	$42.00M	-2.3%
Sep 2002	$43.00M	+13.2%
Jun 2002	$38.00M	+2.7%
Mar 2002	$37.00M	-11.9%
Dec 2001	$42.00M	-8.7%
Sep 2001	$46.00M	-17.9%
Jun 2001	$56.00M	+7.7%
Mar 2001	$52.00M	-7.1%
Dec 2000	$56.00M	-11.1%
Sep 2000	$63.00M	-7.4%
Jun 2000	$68.00M	+13.3%
Mar 2000	$60.00M	+1.7%
Dec 1999	$59.00M	0.0%
Sep 1999	$59.00M	+7.3%
Jun 1999	$55.00M	-8.3%
Mar 1999	$60.00M	+30.4%
Dec 1998	$46.00M	+39.4%
Sep 1998	$33.00M	0.0%
Jun 1998	$33.00M	+17.9%
Mar 1998	$28.00M	-4.8%
Dec 1997	$29.40M	+4.6%
Sep 1997	$28.10M	-10.5%
Jun 1997	$31.40M	+79.4%
Mar 1997	$17.50M	+9.4%
Dec 1996	$16.00M	+10.3%
Sep 1996	$14.50M	-8.8%
Jun 1996	$15.90M	+4.6%
Mar 1996	$15.20M	-1.9%
Dec 1995	$15.50M	-1.9%
Sep 1995	$15.80M	-6.0%
Jun 1995	$16.80M	+14.3%
Mar 1995	$14.70M	+8.1%
Dec 1994	$13.60M	+3.8%
Sep 1994	$13.10M	+6.5%
Jun 1994	$12.30M	+6.0%
Mar 1994	$11.60M	-

FAQ

What is the current quarterly interest expense of MMC?
As of today, MMC quarterly interest expense is $237.00M
What is MMC quarterly interest expense most recent change?
MMC quarterly interest expense was down -2.47% on September 30, 2025
What is 1-year change in MMC quarterly interest expense?
MMC quarterly interest expense is up +53.90% year-over-year
How far is MMC quarterly interest expense from its all-time high?
MMC quarterly interest expense vs all-time high is unknown
When is MMC next earnings release?
As of today, the next earnings release for MMC has not been scheduled

TTM Interest Expense

$956.00M$83.00M+9.51%

September 30, 2025

Summary

Current Value: As of today, MMC TTM interest expense is $956.00M, up +9.51% on September 30, 2025
Historical Performance: MMC TTM interest expense is up +54.19% year-over-year, up +111.97% over the past 3 years
All-Time High Comparison: MMC TTM interest expense vs all-time high is unknown
3-Year Low Comparison: MMC TTM interest expense vs 3-year low value is unknown

Performance

MMC Performance
Metric	Date	Value	3M	1Y	3Y	5Y
	Sep 30, 25	$956.00M	+9.5%	+54.2%	+112.0%	+84.9%
	Dec 31, 24	$700.00M	–	+21.1%	+57.7%	+33.6%
	Sep 30, 25	$237.00M	-2.5%	+53.9%	+100.8%	+85.2%
Price	Mar 11, 26	$173.97	-6.6%	-24.3%	+10.7%	+47.6%
	Sep 30, 25	$6.58B	-1.3%	+3.0%	+33.4%	+80.1%
TTM Revenue	Sep 30, 25	$26.46B	+2.6%	+10.5%	+27.4%	+55.4%

TTM Interest Expense Highs

MMC TTM Interest Expense Highs Comparison
Period	High	Date	Current
1Y	$956.00M	Sep 30, 25	N/A
3Y	$956.00M	Sep 30, 25	N/A
5Y	$956.00M	Sep 30, 25	N/A
All	$956.00M	Sep 30, 25	N/A

TTM Interest Expense Lows

MMC TTM Interest Expense Lows Comparison
Period	Low	Date	Current
1Y	$700.00M	N/A	N/A
3Y	$469.00M	N/A	N/A
5Y	$436.00M	Mar 31, 22	N/A
All	$11.60M	Mar 31, 94	N/A

TTM Interest Expense History

Month	Value	Change
Sep 2025	$956.00M	+9.5%
Jun 2025	$873.00M	+11.1%
Mar 2025	$786.00M	+12.3%
Dec 2024	$700.00M	+12.9%
Sep 2024	$620.00M	+1.5%
Jun 2024	$611.00M	+1.7%
Mar 2024	$601.00M	+4.0%
Dec 2023	$578.00M	+4.3%
Sep 2023	$554.00M	+5.1%
Jun 2023	$527.00M	+6.5%
Mar 2023	$495.00M	+5.5%
Dec 2022	$469.00M	+4.0%
Sep 2022	$451.00M	+2.5%
Jun 2022	$440.00M	+0.9%
Mar 2022	$436.00M	-1.8%
Dec 2021	$444.00M	-4.1%
Sep 2021	$463.00M	-4.3%
Jun 2021	$484.00M	-4.3%
Mar 2021	$506.00M	-1.7%
Dec 2020	$515.00M	-0.4%
Sep 2020	$517.00M	-1.0%
Jun 2020	$522.00M	-1.7%
Mar 2020	$531.00M	+1.3%
Dec 2019	$524.00M	+7.8%
Sep 2019	$486.00M	+15.2%
Jun 2019	$422.00M	+20.9%
Mar 2019	$349.00M	+20.3%
Dec 2018	$290.00M	+12.8%
Sep 2018	$257.00M	+3.6%
Jun 2018	$248.00M	+3.3%
Mar 2018	$240.00M	+1.3%
Dec 2017	$237.00M	+4.9%
Sep 2017	$226.00M	+6.1%
Jun 2017	$213.00M	+6.0%
Mar 2017	$201.00M	+6.3%
Dec 2016	$189.00M	+1.1%
Sep 2016	$187.00M	+3.3%
Jun 2016	$181.00M	+4.6%
Mar 2016	$173.00M	+6.1%
Dec 2015	$163.00M	+6.5%
Sep 2015	$153.00M	-2.5%
Jun 2015	$157.00M	-1.3%
Mar 2015	$159.00M	-3.6%
Dec 2014	$165.00M	-4.1%
Sep 2014	$172.00M	+3.0%
Jun 2014	$167.00M	+1.2%
Mar 2014	$165.00M	-1.2%
Dec 2013	$167.00M	-1.8%
Sep 2013	$170.00M	-2.3%
Jun 2013	$174.00M	-2.8%
Mar 2013	$179.00M	-1.1%
Dec 2012	$181.00M	-2.2%
Sep 2012	$185.00M	-2.6%
Jun 2012	$190.00M	-2.1%
Mar 2012	$194.00M	-2.5%
Dec 2011	$199.00M	-1.5%
Sep 2011	$202.00M	-5.2%
Jun 2011	$213.00M	-4.9%
Mar 2011	$224.00M	-3.9%
Dec 2010	$233.00M	-3.3%
Sep 2010	$241.00M	+0.4%
Jun 2010	$240.00M	-2.0%
Mar 2010	$245.00M	+1.7%
Dec 2009	$241.00M	+2.6%

Month	Value	Change
Sep 2009	$235.00M	+2.2%
Jun 2009	$230.00M	+4.5%
Mar 2009	$220.00M	0.0%
Dec 2008	$220.00M	-0.5%
Sep 2008	$221.00M	-4.7%
Jun 2008	$232.00M	-7.9%
Mar 2008	$252.00M	-5.6%
Dec 2007	$267.00M	-5.7%
Sep 2007	$283.00M	-3.4%
Jun 2007	$293.00M	-1.0%
Mar 2007	$296.00M	-2.3%
Dec 2006	$303.00M	-2.3%
Sep 2006	$310.00M	-10.4%
Jun 2006	$346.00M	+1.5%
Mar 2006	$341.00M	+2.7%
Dec 2005	$332.00M	+4.1%
Sep 2005	$319.00M	+21.3%
Jun 2005	$263.00M	+10.5%
Mar 2005	$238.00M	+8.7%
Dec 2004	$219.00M	+9.0%
Sep 2004	$201.00M	+3.6%
Jun 2004	$194.00M	+1.0%
Mar 2004	$192.00M	+3.8%
Dec 2003	$185.00M	+3.4%
Sep 2003	$179.00M	+2.9%
Jun 2003	$174.00M	+4.8%
Mar 2003	$166.00M	+3.8%
Dec 2002	$160.00M	0.0%
Sep 2002	$160.00M	-1.8%
Jun 2002	$163.00M	-9.9%
Mar 2002	$181.00M	-7.7%
Dec 2001	$196.00M	-6.7%
Sep 2001	$210.00M	-7.5%
Jun 2001	$227.00M	-5.0%
Mar 2001	$239.00M	-3.2%
Dec 2000	$247.00M	-1.2%
Sep 2000	$250.00M	+1.6%
Jun 2000	$246.00M	+5.6%
Mar 2000	$233.00M	0.0%
Dec 1999	$233.00M	+5.9%
Sep 1999	$220.00M	+13.4%
Jun 1999	$194.00M	+12.8%
Mar 1999	$172.00M	+22.9%
Dec 1998	$140.00M	+13.5%
Sep 1998	$123.40M	+4.1%
Jun 1998	$118.50M	+1.4%
Mar 1998	$116.90M	+9.9%
Dec 1997	$106.40M	+14.4%
Sep 1997	$93.00M	+17.1%
Jun 1997	$79.40M	+24.3%
Mar 1997	$63.90M	+3.7%
Dec 1996	$61.60M	+0.8%
Sep 1996	$61.10M	-2.1%
Jun 1996	$62.40M	-1.4%
Mar 1996	$63.30M	+0.8%
Dec 1995	$62.80M	+3.1%
Sep 1995	$60.90M	+4.6%
Jun 1995	$58.20M	+8.4%
Mar 1995	$53.70M	+6.1%
Dec 1994	$50.60M	+36.8%
Sep 1994	$37.00M	+54.8%
Jun 1994	$23.90M	+106.0%
Mar 1994	$11.60M	-

FAQ

What is the current TTM interest expense of MMC?
As of today, MMC TTM interest expense is $956.00M
What is MMC TTM interest expense most recent change?
MMC TTM interest expense was up +9.51% on September 30, 2025
What is 1-year change in MMC TTM interest expense?
MMC TTM interest expense is up +54.19% year-over-year
How far is MMC TTM interest expense from its all-time high?
MMC TTM interest expense vs all-time high is unknown
When is MMC next earnings release?
As of today, the next earnings release for MMC has not been scheduled

Interest Expense Formula

Interest Expense = Carrying Value of Debt × Effective Interest Rate

Data Sources & References

MMC Official Website www.marshmclennan.com
Most Recent Quarterly Report (10-Q) www.sec.gov/Archives/edgar/data/62709/000006270925000125/0000062709-25-000125-index.htm
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/62709/000006270925000015/0000062709-25-000015-index.htm
MMC Profile on Yahoo Finance finance.yahoo.com/quote/MMC
MMC Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/mmc