Various tax systems grant a tax exemption to certain organizations, persons, income, property or other items taxable under the system. Tax exemption may also refer to a personal allowance or specific monetary exemption which may be claimed by an individual to reduce taxable income

Taxable income

Taxable income refers to the base upon which an income tax system imposes tax. Generally, it includes some or all items of income and is reduced by expenses and other deductions. The amounts included as income, expenses, and other deductions vary by country or system. Many systems provide that...

 under some systems. Tax exempt status may provide a potential taxpayer complete relief from tax, tax at a reduced rate, or tax on only a portion of the items subject to tax.