EVERY TAX DECISION · WITH THE MATH SHOWN

Tax Calculators

Every money decision about what you owe. Income tax, capital gains, self-employment, LLC vs S-Corp. 2026 brackets with math cited to IRS publications.

Calculate my federal tax →
Most people start here
Updated May 7, 2026 · IRS Pub 15-T · 2026 brackets

  • Tax Bracket Calculator

    Free online tax bracket calculator.

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  • Self-Employment Tax Calculator

    Free online self-employment tax calculator.

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  • Capital Gains Tax Calculator

    Free online capital gains tax calculator.

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  • Tax Withholding Calculator

    Free online tax withholding calculator.

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Your marginal tax rate — the rate on your last dollar earned — is rarely your effective tax rate, the rate on all your income. For 2026 the federal brackets are 10%, 12%, 22%, 24%, 32%, 35%, 37%, with state tax on top ranging from 0% (TX, FL, WA, and 6 others) to 13.3% (California). Self-employment tax adds another 15.3% on net earnings. Every calculator uses current IRS publications — not approximations.

  • Self-Employment Tax Calculator

    Free online self-employment tax calculator.

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  • Self-Employed Tax Calculator

    Free online self-employed tax calculator.

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  • Tax Bracket Calculator

    Free online tax bracket calculator.

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  • Tax Withholding Calculator

    Free online tax withholding calculator.

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  • Capital Gains Tax Calculator

    Free online capital gains tax calculator.

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  • Estate Tax Calculator

    Free online estate tax calculator.

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  • Home Office Deduction Calculator

    Free online home office deduction calculator.

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  • Gig Tax Deductions Calculator

    Free online gig tax deductions calculator.

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  • LLC vs S-Corp Calculator

    Free online llc vs s-corp calculator.

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  • Startup Runway Calculator

    Free online startup runway calculator.

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  • SaaS Pricing Calculator

    Free online saas pricing calculator.

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  • Break-Even Calculator

    Free online break-even calculator.

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  • Profit Margin Calculator

    Free online profit margin calculator.

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  • Markup vs Margin Calculator

    Free online markup vs margin calculator.

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  • Invoice Factoring Calculator

    Free online invoice factoring calculator.

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  • Backdoor Roth Calculator

    Free online backdoor roth calculator.

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  • Income Tax Calculator

    Free online income tax calculator.

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  • IRS Penalty Calculator

    Free online irs penalty calculator.

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  • Marginal vs Effective Tax Rate Calculator

    Free online marginal vs effective tax rate calculator.

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  • Mega Backdoor Roth Calculator

    Free online mega backdoor roth calculator.

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  • Net Unrealized Appreciation Calculator

    Free online net unrealized appreciation calculator.

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  • QBI Deduction Calculator

    Free online qbi deduction calculator.

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  • Social Security Tax Calculator

    Free online social security tax calculator.

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  • Tax Loss Harvesting Calculator

    Free online tax loss harvesting calculator.

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  • Wash Sale Calculator

    Free online wash sale calculator.

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Written and maintained by Jere Salmisto, Founder, CalcFi. Updated May 7, 2026.

Formulas and data sourced from IRS Publications 15, 15-T, 523, 535, Form 1040 instructions, and state revenue departments. Methodology at /about/editorial. Published by CalcFi Editorial.

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