Taxable Income Calculator

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Frequently Asked Questions

What is taxable income?

Taxable income is the portion of your income that is subject to federal income tax. It is calculated by taking your gross income, subtracting adjustments (above-the-line deductions), then subtracting the standard deduction or itemized deductions. It represents the amount on which your tax is calculated.

How is taxable income calculated?

Taxable income = Gross Income - Above-the-Line Deductions - Standard or Itemized Deductions. Gross income includes wages, salaries, tips, business income, investment income, and other income sources. The result is the amount subject to marginal tax rates.

What is the difference between gross income and taxable income?

Gross income is your total income from all sources before any deductions. Taxable income is what remains after subtracting above-the-line deductions (IRA, HSA, student loan interest) and the applicable standard or itemized deduction from gross income.

What is adjusted gross income (AGI)?

AGI is your gross income minus specific adjustments (above-the-line deductions). These include IRA contributions, HSA contributions, student loan interest, educator expenses, self-employment tax, alimony paid, and others. AGI is used to determine eligibility for many deductions and credits.

What types of income are taxable?

Taxable income includes: wages, salaries, tips, commissions, bonuses, self-employment income, business income, rental income, investment income (interest, dividends, capital gains), retirement distributions, unemployment compensation, and some Social Security benefits.

What types of income are not taxable?

Nontaxable income includes: gifts (up to the annual exclusion), inheritances, life insurance proceeds, child support payments, municipal bond interest, workers compensation, most disability insurance benefits paid with after-tax dollars, and qualified Roth IRA distributions.

How do deductions reduce taxable income?

Deductions reduce taxable income before tax is calculated. A $10,000 deduction for someone in the 22% bracket saves $2,200 in taxes. The higher your marginal tax rate, the more valuable each deduction dollar becomes. The standard deduction is available to all taxpayers who do not itemize.

What is the standard deduction for 2024?

The 2024 standard deduction is $14,600 for single filers, $29,200 for married filing jointly, $21,900 for head of household, and $14,600 for qualifying widow(er). Additional amounts apply for taxpayers age 65+ or blind: $1,950 additional for single; $1,550 per spouse for married.

What are above-the-line deductions?

Above-the-line deductions (adjustments to income) are subtracted from gross income to calculate AGI. They include: Traditional IRA contributions, HSA contributions, student loan interest (up to $2,500), educator expenses ($300), self-employment tax, self-employed health insurance, and alimony payments.

What is the difference between deductions and exemptions?

Personal and dependency exemptions were eliminated from 2018-2025 by the Tax Cuts and Jobs Act. Previously, each taxpayer could claim an exemption amount for themselves and dependents. For 2024, only deductions (standard or itemized) reduce taxable income.

How do capital gains affect taxable income?

Capital gains are included in taxable income. Short-term gains are taxed at ordinary income rates. Long-term gains are taxed at preferential rates (0%, 15%, or 20%) but are still included in AGI, which can affect phaseouts for various deductions and credits.

How do retirement contributions affect taxable income?

Traditional 401(k) and IRA contributions reduce taxable income in the year they are made. For 2024, 401(k) contributions up to $23,000 ($30,500 if 50+) are pre-tax. Traditional IRA contributions up to $7,000 ($8,000 if 50+) may be deductible depending on income and retirement plan coverage.

How does self-employment income affect taxable income?

Self-employment income is included in gross income. You can deduct half of self-employment tax above the line. Business expenses are deducted on Schedule C to arrive at net self-employment income. Self-employed individuals also may deduct health insurance premiums above the line.

How is Social Security taxed?

Up to 85% of Social Security benefits may be taxable if your provisional income (AGI + nontaxable interest + half of SS benefits) exceeds thresholds: $25,000 (single), $32,000 (married). Below $25,000 ($32,000 married), SS benefits are not taxable.

What is the tax on unemployment income?

Unemployment compensation is fully taxable as ordinary income. It is included in gross income and subject to federal income tax. Some states also tax unemployment benefits. You can choose to have 10% withheld from your unemployment checks to avoid a tax bill at filing.

How do health savings account contributions reduce taxable income?

HSA contributions are above-the-line deductions, reducing both AGI and taxable income. For 2024, you can contribute up to $4,150 (individual) or $8,300 (family), plus $1,000 catch-up if 55+. Employer contributions also count toward the limit.

What is modified adjusted gross income (MAGI)?

MAGI is AGI adjusted for certain items. Different tax provisions use different MAGI definitions. Common adjustments include adding back: tax-exempt interest, student loan interest deduction, IRA deduction, and foreign earned income exclusion. MAGI is used for phaseout calculations.

How does taxable income affect tax brackets?

Taxable income determines which federal tax brackets apply to you. The US uses a progressive tax system with brackets ranging from 10% to 37%. As taxable income increases, the marginal tax rate on additional income also increases. Only the income within each bracket is taxed at that rate.

How do itemized deductions compare to the standard deduction?

You should itemize if your total itemized deductions exceed your standard deduction. Common itemized deductions include mortgage interest, state and local taxes (up to $10,000), charitable contributions, and medical expenses exceeding 7.5% of AGI. Otherwise, take the standard deduction.

What is the alternative minimum tax?

The AMT is a parallel tax system designed to ensure high-income taxpayers pay a minimum amount of tax. It adds certain preference items back to taxable income and applies a flat rate (26% or 28%). The AMT exemption for 2024 is $85,700 (single) or $133,300 (married), phasing out at higher incomes.

How do passive losses affect taxable income?

Passive activity losses from rental real estate or limited partnerships generally cannot offset active income. However, up to $25,000 in passive losses may be deductible against non-passive income for active real estate participants, subject to income phaseout.

What is the net investment income tax?

The NIIT is an additional 3.8% tax on the lesser of net investment income or MAGI exceeding thresholds ($200,000 single, $250,000 married). It applies to interest, dividends, capital gains, rental income, and passive business income.

How does filing status affect taxable income?

Filing status determines standard deduction amounts and tax bracket thresholds. Married filing jointly offers the lowest tax for most couples. Head of household provides beneficial rates for single parents. Each status has specific qualification requirements.

How do tax credits affect taxable income?

Tax credits do not reduce taxable income; they directly reduce tax liability. Credits are applied after taxable income is calculated. Refundable credits can reduce tax below zero, generating a refund. Nonrefundable credits can only reduce tax to zero.

What is the difference between marginal and effective tax rate?

Your marginal tax rate is the rate on your last dollar of income (your highest bracket). Your effective tax rate is your total tax divided by your total income. For example, someone earning $80,000 might have a 22% marginal rate but only a 14% effective rate.

How do I reduce my taxable income?

Strategies include: maximize retirement contributions (401k, IRA, HSA), use itemized deductions if they exceed the standard deduction, harvest tax losses to offset gains, invest in municipal bonds for tax-free interest, and use health savings accounts.

What is the kiddie tax?

The kiddie tax applies to children under 19 (or 24 if full-time student). Unearned income over $2,600 (2024) is taxed at the parents marginal rate rather than the childs rate. This prevents parents from shifting investment income to children in lower tax brackets.

How is rental income taxed?

Rental income is included in gross income. You can deduct mortgage interest, property taxes, insurance, repairs, maintenance, HOA fees, management fees, and depreciation (27.5 years for residential). Losses may be limited by passive activity loss rules.

What is the foreign earned income exclusion?

US citizens living abroad can exclude up to $126,500 (2024) of foreign earned income from US taxation. The foreign housing exclusion is additional. This can significantly reduce taxable income for expatriates. The exclusion requires meeting the physical presence or bona fide residence test.

How does filing a joint return affect taxable income?

Married filing jointly combines both spouses incomes, deductions, and credits. Joint filing generally offers the lowest tax for most couples due to wider tax brackets and a higher standard deduction. However, it can trigger phaseouts for certain deductions and credits.