What Is the Debt Ceiling?

The debt ceiling, also known as the debt limit, is the maximum amount of money that the United States Treasury is authorized to borrow to meet the government’s existing financial obligations. These obligations include Social Security and Medicare benefits, military salaries, interest on the national debt, tax refunds, and other payments that Congress has already authorized through prior legislation. The debt ceiling does not authorize new spending — it simply allows the government to finance obligations it has already incurred. Congress must periodically vote to raise or suspend the debt ceiling to prevent the United States from defaulting on its obligations. Debates over the debt ceiling have become increasingly contentious, with both parties using it as leverage in negotiations over spending, taxes, and fiscal policy. Failure to raise the debt ceiling would prevent the Treasury from borrowing, potentially forcing the government to default on its debt — an outcome that economists warn could cause severe disruption to financial markets and the broader economy.

This entry is part of the Republican Leaders Political Glossary, an educational reference on American government, legislative processes, and civic institutions.