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- The Tax Policy Blog
- What Are Tax Expenditures?
What Are Tax Expenditures?
A tax expenditure is defined as a departure from the default tax code that decreases total taxes paid. They are called tax “expenditures” because they resemble government spending.
Although a majority of tax expenditure spending can be accounted for by a small number of provisions, the Congressional Budget Office estimates there are over 200 exemptions, deductions, and credits.
The majority of the expenses incurred through tax expenditures are for individuals. For Fiscal Year 2014, the Office of Management and Budget projects nearly $1.2 trillion in total tax expenditures – $148 billion (13 percent) in corporate tax expenditures and $1.036 trillion (87 percent) in individual tax expenditures.
Tax expenditures can be roughly divided into three categories: those that help promote neutrality, those for social welfare, and those that benefit just one favored class of corporations (corporate welfare). Over 60 percent of tax expenditures make the tax code more neutral.
A neutral tax code treats current consumption, and investment and saving (future consumption) equally. For example, the capital gains and dividends tax expenditure lowers the rate on investment income to reduce the problem of double taxation. When investment income is taxed twice, investment is disincentivized you get less investment in the future and more current consumption. The lower rate on capital gains is good tax policy because it moves toward tax code neutrality.
However, maintaining neutrality though tax expenditures can introduce unnecessary complexity and tax compliance issues. We would be better served by correctly defining the tax base.
A correctly defined tax base would only tax businesses on their real profits (revenue minus costs) and only tax individuals on their personal expenditures. This would provide individuals with a system that is neutral between current consumption and future consumption and enable businesses to invest and grow.
As an added bonus, a neutral tax base would eliminate the need for any additional tax expenditures.
Below are the current largest tax expenditures by cost.
Largest Individual Tax Expenditures:
- The Exclusion of Employer Contributions for Medical Insurance Premiums ($196 billion).
- Exclusion of Net Imputed Rental Income ($76 billion).
- Deductibility of Mortgage Interest on Owner-Occupied Housing ($70 billion).
- Lower Rate for Capital Gains ($60 billion).
- Defined Contribution Employer Plans ($59 billion).
Largest Corporate Tax Expenditures:
- Deferral of Income from Controlled Foreign Corporations ($76 billion).
- Deduction for U.S. Production Activities ($10 billion).
- Accelerated Depreciation of Machinery and Equipment ($8 billion).
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