How the brackets actually work
Progressive taxation applies each rate only to the income inside that band. A single filer with 60,000 gross and the 15,000 standard deduction has 45,000 taxable: 10% on the first 11,925, 12% up to 48,475, and so on. Moving into a higher bracket never reduces take-home pay.
Marginal versus effective rate
Your marginal rate is the tax on the next dollar (22% for most middle incomes). Your effective rate is total tax ÷ gross — usually far lower, often 10–15%. Confusing the two leads people to reject raises they should take.
What is not included
- State and local income tax
- FICA (Social Security and Medicare) — see those calculators
- Credits: child tax credit, EITC, education credits
- Itemised deductions and above-the-line adjustments beyond pre-tax contributions
Using this for planning
Check your marginal rate before deciding on a Roth conversion, a bonus timing, or an extra 401(k) contribution. The bracket breakdown table shows exactly where each slice of income is taxed — useful for deciding whether to defer income into January.
Frequently Asked Questions
Which year's brackets are used?
2025 federal brackets and standard deductions ($15,000 single, $30,000 married).
Does a raise ever reduce my take-home?
No — only the income above the threshold is taxed at the higher rate.
Why is my effective rate so low?
Because the standard deduction removes the first chunk of income and the brackets are progressive.
Assumptions & disclaimer
Results are estimates for planning. Fee schedules, tax brackets and deduction limits change; confirm current figures with the marketplace, the IRS or a qualified accountant before making decisions. Nothing here is financial, tax or legal advice.
Privacy & Your Data
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