Tax-exempt refers to income or transactions that are free from tax at the federal, state, or local level. The reporting of tax-free items may be on a taxpayer's individual or business tax return and shown for informational purposes only. The tax-exempt article is not part of any tax calculations.

Tax-exempt may also refer to the status of a business or organization which has limits on the amount of income or gifts which are taxable. These organizations include religious and charitable institutions.