U.S. Government Spending
The U.S. federal government spends over $7 trillion per year — approximately 25-27% of GDP — making it one of the largest economic actors in the world. Federal spending encompasses everything from Social Security and Medicare to defense, infrastructure, and foreign aid. Understanding where the money goes is essential to understanding the national debt.
Federal spending is divided into mandatory spending (programs governed by law, primarily Social Security, Medicare, and Medicaid, ~60% of total), discretionary spending (set annually by Congress, including defense and all other programs, ~30%), and interest payments (~10%, but rapidly growing). The single largest mandatory program is Social Security (~$1.4T/year), followed by Medicare (~$1T/year) and Medicaid (~$600B/year). Defense is the largest discretionary item (~$900B/year).
? Frequently Asked Questions
How much does the U.S. government spend per year?
The federal government spends approximately $7-7.5 trillion per year in fiscal year 2026, compared to revenues of approximately $5-5.5 trillion — creating a $2+ trillion annual deficit.
What is mandatory vs. discretionary spending?
Mandatory spending (Social Security, Medicare, Medicaid, interest payments) is set by law and occurs automatically regardless of the annual budget process. Discretionary spending (defense, education, transportation) is set by Congress each year through appropriations bills.
What is the largest item in the U.S. budget?
Social Security is the largest single program at ~$1.4 trillion per year, followed by Medicare (~$1T), Medicaid (~$600B), defense (~$900B), and interest payments (~$1T+).
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