Federal Income Tax Calculator (2026)
Estimate US federal income tax using filing status, income and deductions.
United States Calculator
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Move the sliders or type exact numbers. Results update instantly.
Instant Estimate
Your Results
Estimated Federal Tax
$10,541
Based on your selected federal tax calculator assumptions. Try different sliders to compare scenarios.
Taxable Income
$70,400
Effective Tax Rate
12.40%
These are planning estimates, not tax, legal or investment advice. Country rules, lender policies and tax rates can change.
How to Use the Federal Tax Calculator
Enter your annual earnings
Input gross W-2 wages, 1099 contractor income, interest, and dividends.
Choose filing status
Select Single, Married Filing Jointly, or Head of Household to apply 2026 standard deductions.
Add extra deductions
Include itemized deductions or above-the-line adjustments (student loan interest, traditional IRA, HSA).
Formula & Calculation Methodology
Taxable Income = Income - Standard Deduction; Tax = Bracket TaxThis calculator uses standard United States financial formulas, IRS thresholds, and amortization schedules. All results compute instantly in your browser with zero data stored or transmitted.
Calculation Examples & Scenarios
Single Filer Earning $85,000 W-2 Wages
$85,000 income, Single, $15,000 standard deduction ($70,000 taxable income).
Married Couple Earning $150,000 Combined
$150,000 joint income, Married Filing Jointly, $30,000 standard deduction ($120,000 taxable).
High-Earning Single Professional ($250,000)
$250,000 income, Single, standard deduction applied.
Key Benefits
- Calculates exact taxes using updated 2026 IRS progressive tax brackets (10% to 37%)
- Applies 2026 standard deductions ($15,000 Single / $30,000 Married Filing Jointly)
- Clear breakdown between marginal tax bracket and effective tax rate
Common Use Cases
- Annual tax return forecasting and quarterly tax payment estimates
- Evaluating the tax impact of raises, bonuses, and new compensation packages
- Quantifying tax savings from contributing to Traditional 401(k) and HSA accounts
Understanding 2026 IRS Tax Brackets & Progressive Rates
The US federal income tax system is progressive, meaning your income is divided into segments taxed at incrementally higher rates: 10%, 12%, 22%, 24%, 32%, 35%, and 37%. Moving into a higher tax bracket only taxes the dollars above that bracket threshold at the higher rate—it never reduces your overall take-home pay.
Before brackets apply, your gross income is reduced by either the Standard Deduction or Itemized Deductions. For 2026, standard deductions provide substantial tax-free income ($15,000 for single filers and $30,000 for married couples filing jointly).
Marginal Rate vs. Effective Rate Explained
Your marginal tax rate is the rate paid on your last dollar of earned income. Your effective tax rate is your actual total tax paid divided by your total income. Because lower income portions are taxed at 0%, 10%, and 12%, your effective tax rate is almost always significantly lower than your marginal bracket.
Frequently Asked Questions
The US federal tax system has seven progressive tax brackets: 10%, 12%, 22%, 24%, 32%, 35%, and 37%. Only the portion of income within each bracket is taxed at that specific rate.
The projected standard deduction for 2026 is approximately $15,000 for single filers, $30,000 for married couples filing jointly, and $22,500 for heads of household.
Your marginal tax rate is the highest bracket applied to your last dollar of income. Your effective tax rate is your actual total tax paid divided by your total income, which is significantly lower due to lower early brackets and deductions.
Pre-tax contributions directly reduce your adjusted gross income (AGI) dollar-for-dollar, lowering the amount of income subject to federal and state income taxes.
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