Key Takeaways

  • Entitlement (“human resources”) spending, including Social Security, Medicare, health, income security, and veterans programs, accounted for about 67% of FY2025 federal outlays.
  • Net interest outlays on the national debt reached a historic $970 billion in FY2025, creating additional budget pressure.
  • At $916 billion in FY2025, defense spending remains the largest discretionary budget item, dwarfing other discretionary spending categories.

The federal budget is supposed to reflect our nation's priorities and challenges. In FY2025, total federal spending reached $7.0 trillion, with significant portions allocated to entitlement programs like Social Security and Medicare, defense, and interest payments.

FY2025 Federal Budget Allocation

America's roughly $7 trillion budget reveals stark fiscal priorities. Mandatory spending including, Social Security, Medicare, health, income security, and veterans' benefits, commands the lion's share, while discretionary spending remains perpetually squeezed. Defense spending, at $916 billion, dwarfed other discretionary spending in 2025.

Federal Outlays Over Time

The long-term trajectory of federal spending tells a story of expanding spending, entitlements and mounting interest costs. As mandatory programs, like Social Security and Medicare, swell with an aging and increasingly dependent population, discretionary spending's share of GDP has remained remarkably constant - a testament to fiscal inertia rather than restraint.

Federal Government Outlays

Annual data, 1940–2025 (2025 dollars), with year-over-year category comparison. Shares may total over 100% because undisplayed offsetting receipts reduce total federal outlays.

National Defense§
Education, Training, Employment, and Social Services*
Health*
Medicare*
Income Security*
Social Security*
Veterans Benefits and Services*
Energy†
Natural Resources and Environment†
Commerce and Housing Credit†
Transportation†
Community and Regional Development†
Net Interest
International Affairs‡
General Science, Space, and Technology‡
Agriculture‡
Administration of Justice‡
General Government‡
§National Defense
*Human Resources
†Physical Resources
Net Interest
‡Other Functions
0%20%40%60%80%100%1940195019601970198019902000201020201940↔2025↔

1940 Summary

Category
%
2025 Dollars
National Defense
17.5%
$29.7B
Education, Training, Employment, and Social Services
20.8%
$35.3B
Health
0.6%
$985M
Medicare
0.0%
$0
Income Security
16.0%
$27.1B
Social Security
0.3%
$501M
Veterans Benefits and Services
6.0%
$10.2B
Energy
0.9%
$1.58B
Natural Resources and Environment
10.5%
$17.9B
Commerce and Housing Credit
5.8%
$9.85B
Transportation
4.1%
$7.02B
Community and Regional Development
3.0%
$5.10B
Net Interest
9.5%
$16.1B
International Affairs
0.5%
$913M
General Science, Space, and Technology
0.0%
$0
Agriculture
3.9%
$6.61B
Administration of Justice
0.9%
$1.45B
General Government
2.9%
$4.91B

2025 Summary

Category
%
2025 Dollars
National Defense
13.1%
$916B
Education, Training, Employment, and Social Services
1.0%
$72.0B
Health
14.0%
$979B
Medicare
14.2%
$997B
Income Security
10.0%
$702B
Social Security
22.5%
$1.58T
Veterans Benefits and Services
5.4%
$377B
Energy
0.3%
$20.8B
Natural Resources and Environment
1.3%
$89.8B
Commerce and Housing Credit
−0.4%
−$28.1B
Transportation
2.1%
$145B
Community and Regional Development
1.2%
$82.4B
Net Interest
13.8%
$970B
International Affairs
0.6%
$45.2B
General Science, Space, and Technology
0.6%
$42.0B
Agriculture
0.7%
$47.4B
Administration of Justice
1.2%
$83.1B
General Government
0.6%
$40.5B

Source: Office of Management and Budget, Historical Tables, Table 3.1 (Outlays by Superfunction and Function) and Table 10.1 (GDP and Deflators), FY2027 President's Budget; real-dollar values use OMB's fiscal-year GDP chained price index.

Interest on Federal Debt

The cost of America's borrowing has come due. Due to rising interest rates, interest payments on the national debt have surged, consuming an ever-larger share of tax revenues. On an annual-rate basis, inflation-adjusted federal interest payments were $629 billion in Q4 2000, $578 billion in Q4 2010, $635 billion in Q4 2020, and $1.23 trillion in Q4 2025, all measured in Q4 2025 dollars.

Interest on Federal Debt

Quarterly, 1947 Q1–2025 Q4

$0.0$200B$400B$600B$800B$1.0T$1.2T195019601970198019902000201020202026

Note: The BEA/FRED series reports federal interest payments before budgetary offsets, at seasonally adjusted annual rates by calendar quarter. OMB’s net-interest outlays are fiscal-year figures that subtract interest received by federal trust funds and other federal interest income.

Source: Federal Reserve Economic Data, Monetary Interest Paid: Federal Government (A091RC1Q027SBEA), GDP, and GDPDEF.

Average Interest Rate on Federal Debt

This chart shows the average interest rate the U.S. Treasury pays on all its interest-bearing debt, based on monthly Treasury data. It reflects the blended cost of borrowing across different securities.

Treasury’s Average Rate on Interest-Bearing Federal Debt

Monthly, 2001–December 2025. Treasury-reported blended rate on marketable and nonmarketable interest-bearing debt; aggregate rate excludes TIPS and floating-rate notes.

0%1%2%3%4%5%6%7%200220042006200820102012201420162018202020222024

Source: U.S. Treasury Fiscal Data, Average Interest Rates on U.S. Treasury Securities — “Total Interest-bearing Debt” series.