Taxes calculators

50 live taxes calculators inside Finance & Banking on The Online Calculator 24. Every engine shows its formula, the worked steps behind the default figures, and the standard or dataset the method comes from.

Live Taxes tools

• US Federal Income Tax & Bracket Calculator (2025–2026) — Calculate federal income tax liability, marginal vs. effective tax rate, FICA payroll taxes (Social Security & Medicare), and take-home pay across IRS tax brackets.
• State Income Tax Calculator — A single-rate model of state income tax with deduction and credit, extensible in your head to graduated states.
• Local Income Tax Calculator — The share one quantity represents of another — the core reading behind local income tax — with a second value folded in for direct comparison.
• Payroll Tax Calculator — Social Security plus Medicare — the flat 7.65% employee share that brackets ignore and budgeting must not.
• Self-Employment Tax & 1099 Write-Off Calculator — Calculate 1099 self-employment tax (Schedule SE: Social Security & Medicare), the 50% above-the-line deduction, and estimated quarterly voucher amounts.
• Capital Gains Tax Calculator — One day and one year apart, taxed at two different regimes: long-term rates of 0/15/20% versus ordinary rates up to 37%.
• Short-Term Capital Gains Calculator — Gains on assets held a year or less are taxed exactly like wages — the whole preferential schedule is off the table.
• Long-Term Capital Gains Calculator — Long-term gains fill the 0%/15%/20% bands starting from your ordinary income — the famous “15%” is rarely the whole story.
• Dividend Tax Calculator — Qualified dividends — mostly domestic stocks held past the 60-day window around the ex-date — earn the capital-gains rate; everything else pays wage rates.
• Interest Income Tax Calculator — Interest, bonds and HYSA yields all sit in the ordinary bracket — no schedule break, unlike dividends and gains.
• Rental Income Tax Calculator — Rental income is taxed after operating losses, depreciation, and the QBI slice — often far below the cash arriving in the account.
• Passive Income Tax Calculator — Passive income is not one tax rate — it is a stack of schedules: ordinary, preferential, and the NIIT surcharge on top.
• K-1 Income Tax Calculator — Partnerships tax you on your share of profit, not on cash paid out — distributions and tax base diverge constantly.
• Foreign Income Tax Calculator — Foreign taxes offset US tax dollar-for-dollar only up to the US rate on that foreign income — the limitation is the whole game.
• Alternative Minimum Tax Calculator — AMT recomputes tax with fewer deductions and a separate rate schedule; you pay whichever system lands higher.
• Net Investment Income Tax Calculator — An Affordable Care Act tax on portfolio income, triggered purely by MAGI crossing filing thresholds.
• Additional Medicare Tax Calculator — A 0.9% surtax on everything past 200/250k of wages plus SE income — no employer match, no wage cap.
• Estimated Quarterly Tax Calculator — Quarterlies avoid the underpayment penalty by meeting either 90% of this year or 100/110% of last year, less withholding.
• Withholding Calculator — Mid-year withholding repair math: the honest annual estimate minus what’s already in, divided by the remaining periods.
• W-4 Calculator — Maps a household’s quirks — itemizing, two jobs, side income — onto the five W-4 steps instead of the old allowance fiction.
• Tax Bracket Calculator — Shows how a progressive bracket system actually taxes income: each slice at its own rate, never all of it at the top rate.
• Marginal Tax Rate Calculator — Prices an extra dollar of income at the rates that actually touch it, splitting the raise at the bracket boundary.
• Effective Tax Rate Calculator — The effective rate divides actual tax by actual gross income — the only rate that matches your bank statements.
• Tax Burden Calculator — Adds federal, payroll, state, local, sales and property layers into one household percentage — the number politics argues about.
• Tax Savings Calculator — The share one quantity represents of another — the core reading behind tax savings — with a second value folded in for direct comparison.
• Deduction Value Calculator — The share one quantity represents of another — the core reading behind deduction value — with a second value folded in for direct comparison.
• Standard Deduction Calculator — The share one quantity represents of another — the core reading behind standard deduction — with a second value folded in for direct comparison.
• Itemized Deduction Calculator — The itemized deduction payment, total interest and true cost of borrowing for any principal, APR and term — the same amortisation maths every lender’s disclosure uses.
• Mortgage Interest Deduction Calculator — The mortgage interest deduction payment, total interest and true cost of borrowing for any principal, APR and term — the same amortisation maths every lender’s disclosure uses.
• Property Tax Deduction Calculator — The share one quantity represents of another — the core reading behind property tax deduction — with a second value folded in for direct comparison.
• Charitable Deduction Calculator — The share one quantity represents of another — the core reading behind charitable deduction — with a second value folded in for direct comparison.
• Medical Expense Deduction Calculator — The share one quantity represents of another — the core reading behind medical expense deduction — with a second value folded in for direct comparison.
• Business Expense Deduction Calculator — The share one quantity represents of another — the core reading behind business expense deduction — with a second value folded in for direct comparison.
• Home Office Deduction Calculator — The share one quantity represents of another — the core reading behind home office deduction — with a second value folded in for direct comparison.
• Vehicle Business Use Calculator — The share one quantity represents of another — the core reading behind vehicle business use — with a second value folded in for direct comparison.
• Education Tax Credit Calculator — The share one quantity represents of another — the core reading behind education tax credit — with a second value folded in for direct comparison.
• Child Tax Credit Calculator — The share one quantity represents of another — the core reading behind child tax credit — with a second value folded in for direct comparison.
• Earned Income Credit Calculator — The share one quantity represents of another — the core reading behind earned income credit — with a second value folded in for direct comparison.
• Saver's Credit Calculator — The share one quantity represents of another — the core reading behind saver's credit — with a second value folded in for direct comparison.
• Energy Efficiency Credit Calculator — The share one quantity represents of another — the core reading behind energy efficiency credit — with a second value folded in for direct comparison.
• EV Tax Credit Calculator — The share one quantity represents of another — the core reading behind ev tax credit — with a second value folded in for direct comparison.
• R&D Tax Credit Calculator — The share one quantity represents of another — the core reading behind r&d tax credit — with a second value folded in for direct comparison.
• Opportunity Zone Calculator — The share one quantity represents of another — the core reading behind opportunity zone — with a second value folded in for direct comparison.
• 1031 Exchange Calculator — The share one quantity represents of another — the core reading behind 1031 exchange — with a second value folded in for direct comparison.
• Like-Kind Exchange Calculator — The share one quantity represents of another — the core reading behind like-kind exchange — with a second value folded in for direct comparison.
• Installment Sale Calculator — The installment sale payment, total interest and true cost of borrowing for any principal, APR and term — the same amortisation maths every lender’s disclosure uses.
• Tax Loss Harvesting Calculator — The share one quantity represents of another — the core reading behind tax loss harvesting — with a second value folded in for direct comparison.
• Wash Sale Rule Calculator — The share one quantity represents of another — the core reading behind wash sale rule — with a second value folded in for direct comparison.
• Gift Tax Calculator — The share one quantity represents of another — the core reading behind gift tax — with a second value folded in for direct comparison.
• Estate Tax Calculator — The share one quantity represents of another — the core reading behind estate tax — with a second value folded in for direct comparison.

Reading a Taxes result

A number on its own is the weakest thing a calculator can give you, so these tools pair each output with the comparison that gives it meaning: the gap to a target, the band the value falls in, or what a realistic swing in one input does to the answer. When a figure looks wrong, that is usually the fastest place to check — re-run it with one input moved and see whether the change lines up with the formula printed above the result.

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