How federal brackets actually work
The US income tax is progressive: income is taxed in slices, and each slice pays its own rate. For a single filer in 2026, the first $12,400 of taxable income is taxed at 10%, the next slice up to $50,400 at 12%, then 22% up to $105,700, 24% up to $201,775, 32% up to $256,225, 35% up to $640,600, and 37% above. Taxable income is your gross income minus pre-tax deductions and the standard deduction ($16,100 single, $32,200 married filing jointly, $24,150 head of household).
So a single filer earning $75,000 has $58,900 of taxable income: $1,240 in the 10% slice, $4,560 in the 12% slice, and $1,870 in the 22% slice — $7,670 of federal income tax. Their bracket is 22%, but their effective rate is 10.2% of gross. The table under the calculator shows these slices for your income.
Marginal vs. effective: which rate to use
Your marginal rate — your bracket — is the tax on your next dollar. Use it for decisions: what a raise or overtime nets, what a traditional 401(k) contribution saves, whether a deduction is worth chasing. Your effective rate is your total tax divided by your income. Use it for budgeting and for comparing your tax burden to others. Confusing the two is the single most common tax misunderstanding: being 'in the 22% bracket' does not mean 22% of your income goes to federal tax.
Remember that this calculator covers federal income tax only. Social Security (6.2%) and Medicare (1.45%) apply to wages from the first dollar, and most states add their own income tax. The paycheck calculator combines all of it.
Lowering your bracket legally
Pre-tax contributions reduce taxable income dollar for dollar: a traditional 401(k), 403(b), HSA, or employer health premiums paid pre-tax. Enter them in the pre-tax field and watch both the tax and, near a threshold, the bracket change. Married couples filing jointly get brackets roughly twice as wide as single filers through the 32% bracket. Itemizing deductions only helps if they exceed the standard deduction, which few households do since the standard deduction roughly doubled in 2018.
Federal income tax
Tax = Σ (income in each bracket × that bracket's rate)
- Taxable income = gross − pre-tax deductions − standard deduction
- Marginal rate = rate of the highest bracket you reach
- Effective rate = tax ÷ gross income
Common mistakes this calculator helps you avoid
- ✕Applying your bracket rate to all your income. Only the top slice is taxed at that rate.
- ✕Forgetting the standard deduction. Brackets apply to taxable income, not gross.
- ✕Ignoring FICA. Social Security and Medicare add 7.65% on wages regardless of bracket.
- ✕Declining a raise to 'stay in a lower bracket.' A raise always increases take-home pay.
- ✕Using the effective rate to value a 401(k) contribution. Pre-tax contributions save your marginal rate.
Key terms
- Tax bracket
- A range of taxable income taxed at a single rate; your bracket is the highest one your income reaches.
- Taxable income
- Gross income minus pre-tax deductions and the standard (or itemized) deduction.
- Standard deduction
- A fixed amount exempt from federal income tax: $16,100 single, $32,200 married jointly, $24,150 head of household in 2026.
- Progressive tax
- A system where higher slices of income face higher rates.
Frequently asked questions
+What tax bracket am I in at $75,000?
The 22% federal bracket for a single filer in 2026 ($58,900 of taxable income after the standard deduction). Your effective federal income tax rate is about 10.2%.
+What are the 2026 federal tax brackets?
For single filers: 10% to $12,400, 12% to $50,400, 22% to $105,700, 24% to $201,775, 32% to $256,225, 35% to $640,600, and 37% above. Married filing jointly thresholds are roughly double through the 32% bracket.
+Does moving into a higher bracket mean I pay more on all my income?
No. Only the income above the threshold is taxed at the higher rate. Everything below is taxed exactly as before.
+What's the difference between marginal and effective tax rate?
Marginal is the rate on your next dollar (your bracket). Effective is total tax divided by total income. Effective is always lower.
+Does this include state tax and FICA?
No — federal income tax only. Use the paycheck calculator for the full picture including Social Security, Medicare and your state.