What are options for raising revenues?
Policymakers can directly increase revenues by increasing tax rates, reducing tax breaks, expanding the tax base, improving enforcement, and levying new taxes. They can indirectly increase revenues through policies that increase economic activity, income, and wealth.
Options for our existing system
- Congress could increase the tax rates that apply to personal income, corporate income, payrolls, estates, and specific products like gasoline and cigarettes. Higher rates almost always yield higher revenues, even if people and businesses do less of the taxed activity. Capital gains, which are currently taxed at a top rate of 23.8 percent, are one exception; some estimates suggest revenues may peak at rates around 30 percent and then decline.
- Congress could scale back or eliminate the myriad tax breaks in the existing code. Prominent personal examples include the exclusion of employer-provided health insurance, the mortgage interest deduction, retirement saving incentives, and the charitable deduction. Prominent business examples include accelerated depreciation, deferral of taxes on overseas income, and the domestic manufacturing deduction.
- Congress could apply existing taxes more broadly. For example, it could reduce the personal exemption in the individual income tax, increase the cap on earnings subject to the Social Security payroll tax, or reduce the amount of the estate tax exemption.
- The federal government could strengthen enforcement. The IRS estimates that the “tax gap”—the difference between taxes owed and those actually paid—was about $450 billion in 2006 and that enforcement efforts and penalties recovered about $65 billion. Better enforcement could further reduce the remaining $385 billion gap.
Policymakers could also boost revenues by introducing new taxes. The largest potential revenue sources would be a value-added tax (already levied in every other developed nation) or a carbon tax (which would target the pollutants causing climate change). Other recent proposals include taxes on financial transactions, wealth, and unhealthy foods and drinks.
Boosting Economic Activity
All else equal, a bigger economy generates more tax revenue. Policies that boost economic activity, incomes, and wealth can thus lift revenues as well. Examples include policies that increase the number of people in the labor force, the number of hours they work, their skills, and physical and intellectual capital.
Immigration reform is one way to boost economic activity. Bringing new workers into the country would expand the labor force and attract new capital; allowing unauthorized workers to enter the legal workforce would boost their productivity and taxable wages.
Other policies that might boost economic activity include investing in infrastructure, education, and innovation; reforming the rules of social programs that discourage some people from working; and restructuring the tax code to encourage domestic investment. Actual economic gains depend on policy specifics; poorly-designed investments and reforms could boomerang, reducing economic activity.
Burman, Leonard E., William G. Gale, Sarah Gault, Bryan Kim, Jim Nunns, and Steven Rosenthal. 2015. Financial Transaction Taxes in Theory and Practice. Washington, DC: Urban-Brookings Tax Policy Center.
Congressional Budget Office. 2014. Options for Reducing the Deficit: 2015 to 2024. Washington, DC: Congressional Budget Office.
———. 2015. How Changes in Immigration Policy Would Affect the Federal Budget. Washington, DC: Congressional Budget Office.
Gale, William G., and Benjamin H. Harris. 2010. “A Value-added Tax for the United States: Part of the Solution.” Washington, DC: Urban-Brookings Tax Policy Center.
Marron, Donald, Eric Toder, and Lydia Austin. 2015. Taxing Carbon: What, Why, and How. Washington, DC: Urban-Brookings Tax Policy Center.