A balanced budget amendment or debt brake is a constitutional rule requiring that a state cannot spend more than its income. It requires a balance between the projected receipts and expenditures of the government, and the balance requirement may be for each fiscal year or over a multi-year period.
Balanced budget amendments are defended with arguments that they reduce deficit spending and constrain politicians from making irresponsible short-term spending decisions when they are in office.[4] Research shows that balanced budget amendments lead to greater fiscal discipline.[5] However, there is substantial agreement among economists that strict annual balanced budget amendments have harmful[vague] near-term economic effects. In times of recession, deficit spending has significant benefits, whereas spending cuts by governments aggravate and lengthen recessions.[6][7][8][9][10][11] To prevent that, most balanced-budget provisions make an exception for times of war, national emergency, or recession, or allow the legislature to suspend the rule by a supermajority vote. In 1995, such an amendment passed the US House and came within one vote of passing the Senate.[12]
Alternatively, some balanced budget requirements and proposals target multi-year balance instead of annual balance.[13][14][15] Structural balance—balance over the medium term—avoids the pro-cyclical features of an annual balance requirement and may allow adjustments for automatic changes in benefits programs known as automatic stabilizers.[16]
^U.S. Government Accountability Office, "Economic Downturns: Considerations for an Effective Automatic Fiscal Response," GAO-25-106455, https://www.gao.gov/products/gao-25-106455, June 9, 2025.