Federal Tax Calculator
Estimate your federal income tax using official IRS brackets. Enter your gross income, select your filing status, and see a marginal breakdown.
Total Tax
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Effective Rate
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Marginal Rate
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| Rate | Taxable Amount | Tax |
|---|---|---|
| Enter income to calculate | ||
How This Works
This calculator applies the federal marginal tax brackets to your taxable income (gross income minus deduction).
Each dollar of income is taxed at the rate for its bracket — not your top rate. That's why your effective rate is lower than your marginal rate.
This estimates federal income tax only. It does not include:
- State or local income tax
- FICA (Social Security + Medicare)
- Self-employment tax
- Tax credits (Child Tax Credit, EITC, etc.)
- Capital gains or investment income
For a complete tax picture, consult a tax professional or use IRS Tax Withholding Estimator.
Federal Tax by Occupation
Estimated 2026 federal income tax for the 10 largest U.S. occupations by employment. Based on median annual salary, single filer, standard deduction. Source: WageDex (BLS OES).
| Occupation | Median Salary | Est. Federal Tax | Effective Rate |
|---|---|---|---|
| Home Health and Personal Care Aides | $34,900 | $2,056 | 5.9% |
| Retail Salespersons | $34,580 | $2,018 | 5.8% |
| Fast Food and Counter Workers | $30,480 | $1,526 | 5.0% |
| General and Operations Managers | $102,950 | $13,907 | 13.5% |
| Registered Nurses | $93,600 | $11,850 | 12.7% |
| Cashiers | $31,190 | $1,611 | 5.2% |
| Laborers and Freight, Stock, and Material Movers, Hand | $38,940 | $2,541 | 6.5% |
| Stockers and Order Fillers | $37,090 | $2,319 | 6.3% |
| Customer Service Representatives | $42,830 | $3,008 | 7.0% |
| Office Clerks, General | $43,630 | $3,104 | 7.1% |
Assumes single filing status and 2026 standard deduction ($15,700). Estimates are pre-credit federal income tax only — actual tax liability will vary.
How Federal Tax Brackets Work
The U.S. uses a progressive (marginal) tax system. Your income is divided into layers called brackets, and each layer is taxed at its own rate — not your top rate.
For example, a single filer earning $80,000 in 2026 doesn't pay 22% on the entire $80,000. They pay 10% on the first $12,400, 12% on income from $12,400–$50,400, and 22% only on income from $50,400–$80,000.
This means your effective rate (actual tax ÷ gross income) is always lower than your marginal rate (the rate on your last dollar of income). The calculator above shows both.
Historical Tax Rate Comparison (2020–2026)
Federal income tax rates have remained stable from 2020 through 2026 at the same 7 tiers: 10%, 12%, 22%, 24%, 32%, 35%, and 37%. The bracket thresholds, however, are adjusted annually for inflation.
From 2020 to 2026, the single-filer 22% bracket threshold rose from $40,125 to $50,400 — a 25.6% increase driven by cumulative CPI adjustments. This means more income stays in lower brackets each year, effectively reducing taxes at the same income level.
The standard deduction also grew from $12,400 (2020) to $15,700 (2026), shielding more income from tax. Use the selector above to compare any year from 2020 to 2026.
Filing Status Impact on Tax
Your filing status is one of the most significant factors in your federal tax bill. Married Filing Jointly (MFJ) filers get bracket thresholds that are roughly double those of single filers — this is sometimes called the "marriage bonus."
Head of Household (HoH) filers — typically single parents — get slightly wider brackets than single filers, offering an intermediate benefit. Married Filing Separately often results in higher taxes than MFJ and loses access to some credits.
For a household earning $120,000, the difference between filing single vs. MFJ can be thousands of dollars in federal tax. Use the filing status selector above to see the difference in real time.
Data Sources
Tax brackets and standard deductions: IRS Revenue Procedure (annual inflation adjustments), tax years 2020–2026.
Occupation salary data: U.S. Bureau of Labor Statistics Occupational Employment and Wage Statistics (OES), via WageDex.
This calculator is for estimation purposes only and does not constitute tax advice. Consult a qualified tax professional for personalized guidance.
Frequently Asked Questions
How accurate is this federal tax calculator?
This calculator uses official IRS bracket thresholds and standard deduction amounts for 2020–2026. It accurately computes federal income tax before credits. It does not include state taxes, FICA, self-employment tax, or tax credits like the Child Tax Credit or EITC, which may lower your actual liability.
What is the difference between gross income and taxable income?
Gross income is your total earnings before deductions. Taxable income is gross income minus your deduction (standard or itemized). Federal tax brackets apply to taxable income, not gross income — so a higher deduction means less income is taxed.
Should I use the standard deduction or itemize?
Most taxpayers benefit from the standard deduction, which is $15,000 (Single) and $30,000 (MFJ) for 2025. Itemizing may save more if your mortgage interest, state/local taxes (up to $10,000 SALT cap), and charitable donations exceed the standard amount.
Does this calculator include state income tax?
No. This calculator estimates federal income tax only. State income tax rates vary widely — seven states have no income tax at all. For a complete picture, add your state liability separately.
Why is my effective tax rate lower than my marginal rate?
The U.S. uses a progressive marginal system: each bracket taxes only the income within it. Your first dollars are taxed at 10%, regardless of your top bracket. The effective rate (total tax divided by gross income) blends all brackets and is always lower than your highest marginal rate.
Related Resources
Deductions & Credits
Standard deductions, retirement limits, EITC, and Child Tax Credit for 2020–2026.
2026 Tax Deadlines
Filing deadline, extension dates, and quarterly estimated payment due dates.
2026 Tax Brackets
All 7 marginal rates across all 4 filing statuses with bracket-by-bracket breakdown.