Spending 10
Tax expenditures are 44% as large as tax revenues and 37% as large as direct spending: Tax expenditures, revenues, and spending as a share of GDP, 2017
| Budget item | Value as a share of GDP |
|---|---|
| Tax expenditures | 7.6% |
| Revenues | 17.2% |
| Noninterest spending | 19.3% |

Source: Government Accountability Office, "Figure: Tax Expenditures Are Comparable in Size to Discretionary Spending," Tax Expenditures (web page), 2017; Congressional Budget Office, Budget and Economic Data, Historical Budget Data, May 2019; Bureau of Economic Analysis, National Income and Product Accounts (NIPA) Tables, Table 1.1.5
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