Tax Deduction
Definition
An expense that can be subtracted from gross income to reduce the amount of income subject to taxation.
A tax deduction reduces your taxable income by the amount of the deduction. The actual tax savings depends on your marginal tax bracket. A $1,000 deduction for someone in the 22% bracket saves $220 in taxes, while the same deduction in the 37% bracket saves $370.
Common tax deductions include mortgage interest, state and local taxes, charitable donations, student loan interest, health savings account contributions, and business expenses. Some deductions are above-the-line (available regardless of whether you itemize) while others are below-the-line (only available if you itemize).
Maximizing tax deductions requires planning and documentation. Keep detailed records of deductible expenses, contribute to tax-advantaged accounts before year-end, and consider bunching deductions in alternating years if you are near the standard deduction threshold. Working with a tax professional can identify deductions you might otherwise miss.
Related Calculators
Related Terms
Tax Credit
financeA dollar-for-dollar reduction in the amount of tax owed, more valuable than a deduction because it directly reduces the tax bill.
Standard Deduction
financeA fixed dollar amount that reduces the amount of income subject to tax, available to all taxpayers who do not itemize deductions.
Itemized Deduction
financeSpecific expenses that taxpayers can list on their tax return to reduce taxable income, as an alternative to taking the standard deduction.
Tax Bracket
financeA range of income levels taxed at a specific rate within a progressive tax system where higher income is taxed at higher rates.
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