Explore where federal dollars go — from Social Security and Medicare to defense, education, and beyond.
In FY2025, the federal government is projected to spend about $7.0 trillion — roughly 24% of GDP. (That's narrower than the ~37%-of-GDP figure in the international comparison below, which also counts state and local government spending.)
About two-thirds of the federal budget — mostly Social Security, Medicare, Medicaid, and interest on the debt — is spent automatically each year without a new vote. The rest is discretionary spending that Congress sets annually, roughly half of which goes to defense.
Figures are rounded, illustrative FY2025 estimates and won't sum exactly to the total.
An aging population is driving up Social Security and Medicare costs, and there's a backlog of investment needed in infrastructure, education, and climate resilience.
Spending on unemployment insurance and other safety-net programs automatically expands during recessions, softening the blow for families and the broader economy.
The US spends less than most other wealthy democracies as a share of GDP, suggesting room to expand public services without becoming a global outlier.
Persistent deficits are adding to a rapidly growing national debt, and rising interest costs increasingly crowd out room for other priorities.
A smaller government can mean less duplication and waste, and lets individuals and markets — rather than politicians — decide how more resources get used.
Spending financed by borrowing today shifts the bill to future taxpayers, who didn't get a vote on it.
Federal spending as a share of the economy has swung dramatically over the past 90 years — driven mostly by wars, recessions, and the growth of entitlement programs as the population ages.
Federal outlays as % of GDP, selected years. Approximate historical estimates for illustration.
Spending spiked above 40% of GDP during World War II, then fell sharply as the wartime economy demobilized. It crept upward over the following decades — through the Korean and Vietnam wars and the growth of Social Security and Medicare — before easing to a modern low around 2000, when a strong economy and budget surpluses reduced relative spending. Two more recent shocks — the 2008 financial crisis and the COVID-19 pandemic — each triggered a temporary but sharp spike, as emergency stimulus and safety-net spending expanded faster than the economy did.
Federal spending figures are outlays (money actually paid out) from the Congressional Budget Office (CBO); the long-run history uses the White House Office of Management and Budget's historical tables. International comparisons use the International Monetary Fund's figures for total government spending — national, state and local combined — so they are higher than US federal spending alone. Percent-of-GDP figures use fiscal-year GDP.