Federal Tax Calculator USA (Estimate IRS Income Tax & Refund)
Federal Tax Calculator USA 2026: Estimate Your Federal Income Tax Instantly
Know Your 2026 Federal Tax Before You File
Enter your income and filing status. Get your federal tax estimate, marginal bracket, effective rate, and a full breakdown in seconds.
Who This Tool Is For
This federal tax calculator works for any US taxpayer who wants a fast, honest estimate of their 2026 federal income tax liability.
See how your W-2 income maps to 2026 federal brackets. Verify your withholding is on track before year-end.
Enter your hourly rate and hours worked. The calculator annualizes your earnings and shows your federal tax estimate.
Estimate federal income tax on 1099 or self-employment income. Plan quarterly payments with a clear number in hand. Also check the self-employment tax calculator for your SE tax on top.
Comparing two job offers with different salaries? Run both through this tool to see the after-tax difference before you decide.
Compare married filing jointly vs. married filing separately side by side using the filing status selector.
Run scenarios with different pre-tax deduction amounts, such as 401(k) contributions or HSA contributions, to see how they lower your federal tax.
Federal Tax Calculator USA 2026
Estimate your 2026 US federal income tax. Results are for planning only.
How the 2026 Federal Tax Calculation Works
This tool follows the same progressive bracket method the IRS uses. Understanding each step helps you plan smarter.
Progressive Tax Brackets
Federal income tax uses a progressive system. You pay a lower rate on the first dollars you earn and a higher rate only on the portion of income above each bracket threshold. No single rate applies to your entire income.
Federal Tax = Sum of (income in each bracket x that bracket's rate)
What Reduces Your Taxable Income
Three things can reduce your federal taxable income before brackets are applied:
- Pre-tax deductions: 401(k), HSA, employer health premiums. These reduce adjusted gross income (AGI).
- Standard or itemized deduction: Subtracted from AGI to get taxable income.
- Tax credits: Applied after tax is calculated. Credits reduce your tax dollar for dollar.
Use the pre-tax deduction calculator to see how specific deductions affect your paycheck.
Step-by-step: How your federal tax estimate is built
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Annualize your income
Your pay period income is multiplied by the appropriate factor (12 for monthly, 26 for biweekly, etc.) to get your annual gross income. For hourly workers, the rate is multiplied by hours per week and 52.
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Subtract pre-tax deductions to get AGI
Contributions to employer-sponsored retirement accounts, HSAs, and similar pre-tax benefits reduce your gross income before the standard or itemized deduction is applied.
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Apply deduction to get taxable income
The 2026 standard deduction for your filing status (or your entered itemized total if it is higher) is subtracted from your adjusted gross income. The result is your federal taxable income.
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Apply 2026 federal tax brackets
The progressive bracket table for your filing status is applied to your taxable income. Tax from each bracket layer is summed to produce your gross federal income tax before credits.
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Subtract tax credits
Credits you entered are subtracted dollar-for-dollar from your gross federal tax. The remaining amount is your estimated net federal income tax for 2026.
2026 Federal Tax: Key Information
Key facts about the 2026 federal income tax system every US filer should understand.
2026 Federal Bracket Rates
The seven rates are 10%, 12%, 22%, 24%, 32%, 35%, and 37%. The income thresholds for each bracket depend on filing status and are adjusted annually by the IRS for inflation. The 37% rate applies only to taxable income above $626,350 for single filers and $751,600 for married filing jointly in 2026 projections.
Standard vs. Itemized Deduction
The estimated 2026 standard deduction is $16,100 for single filers, $32,200 for married filing jointly, and $24,150 for head of household. Filers age 65 or older may qualify for an additional standard deduction amount. Most taxpayers benefit from the standard deduction rather than itemizing.
Effective vs. Marginal Rate
Your marginal rate is the highest bracket your income touches. Your effective rate is total federal tax divided by total gross income. Because the US uses progressive brackets, your effective rate is always lower than your marginal rate. The difference becomes larger at higher incomes.
Pre-Tax Deductions That Help
Traditional 401(k) contributions (up to $23,500 in 2026 for workers under 50, $31,000 if 50+), HSA contributions ($4,300 for self-only, $8,550 for family in 2026), and employer health premiums are common pre-tax benefits. Each dollar contributed to these accounts directly reduces your federal taxable income.
Federal Tax vs. Total Tax
This calculator estimates federal income tax only. Your total tax burden also includes FICA (Social Security at 6.2% up to the wage base, Medicare at 1.45%), state income tax (varies by state), and potentially local taxes. Use the income tax calculator to include state tax in your estimate, or the paycheck calculator for a full take-home pay estimate.
Self-Employment and 1099 Income
Self-employed workers and 1099 contractors pay federal income tax on net self-employment income. They also owe self-employment tax (15.3% on the first $176,100 of net earnings in 2026, 2.9% above that). This calculator handles the income tax portion. Use the self-employment tax calculator to estimate the SE tax on top.
Real 2026 Federal Tax Examples
These examples show how the 2026 federal bracket system works for common income levels. All amounts are estimates for planning.
$55,000 Salary, Single
$120,000 Combined, MFJ
$200,000 Salary, Single
Example calculations use estimated 2026 bracket thresholds and standard deduction amounts based on IRS inflation adjustment projections. Actual 2026 brackets will be confirmed by the IRS in late 2025.
Frequently Asked Questions
Common questions about the 2026 federal income tax calculator and how federal tax works in the US.
The 2026 federal income tax rates range from 10% to 37% across seven brackets. Your rate depends on your taxable income and filing status. Most workers do not pay the top rate on all income. Only the portion of income that falls into a higher bracket is taxed at that rate.
For 2026, the estimated standard deduction is $16,100 for single filers, $32,200 for married filing jointly, and $24,150 for head of household. These amounts reduce your taxable income before federal tax is calculated. Filers 65 or older receive an additional amount on top.
Your marginal rate is the rate applied to your last dollar of taxable income. Your effective rate is total federal tax divided by gross income. Most people pay an effective rate much lower than their marginal bracket because lower brackets apply to lower portions of income.
No. This calculator covers federal income tax only. FICA (Social Security and Medicare) taxes are separate. Use the FICA tax calculator or paycheck calculator on USAJobsKit to include those deductions in your full take-home pay estimate.
Pre-tax deductions like 401(k) contributions, HSA contributions, and employer health insurance premiums reduce your federal taxable income before the brackets are applied. Enter your total annual pre-tax deductions in the form to get a more accurate estimate. See the pre-tax deduction calculator for help estimating this number.
Yes. Select self-employment or 1099 as your income type. The calculator estimates your federal income tax only. Note that self-employed workers also owe self-employment tax on top of income tax. Use the self-employment tax calculator for the full picture, or compare W-2 vs. 1099 using the W-2 vs. 1099 calculator.
Most US taxpayers take the standard deduction because it is higher than their itemized total. If your mortgage interest, state and local taxes (capped at $10,000), charitable contributions, and other Schedule A expenses exceed the 2026 standard deduction for your filing status, itemizing may lower your federal tax bill. Run both scenarios in this tool to compare.
This tool uses the best available 2026 federal bracket projections and standard deduction estimates based on IRS historical inflation adjustments. It is designed for planning purposes. Final amounts depend on credits, additional income types, phase-outs, AMT, and other factors not modeled here. Always verify with IRS publications or a tax professional before filing.
Data Sources
This calculator uses official IRS data and credible projections for 2026 federal tax rules.
Your Data Stays on Your Device
This calculator runs entirely in your browser. No income, filing status, or personal information is stored, transmitted, or shared. We do not collect your data. Nothing you enter is sent to a server for storage.
Developed and reviewed by
Eman Ali MughalThis federal tax calculator was developed and reviewed for accuracy and usability by Eman Ali Mughal. Bracket values, standard deduction amounts, and calculation logic are based on official IRS publications and best-available 2026 projections.