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Free Tax Calculators

Quick answers to the tax questions we get asked every week. All math runs in your browser. No signup, no email, no data collection.

  • Calculator

    S-Corp Savings Calculator

    Estimate the self-employment tax savings of electing S-Corp status, including a reasonable salary recommendation, payroll cost, and net annual savings.

    InputsNet business income, Reasonable salary, State
    OutputNet annual savings vs sole proprietor
  • Calculator

    Alternative Minimum Tax (AMT) Calculator

    Quick check on Alternative Minimum Tax exposure. Best for high-income earners with ISO exercises, large state and local taxes, or significant capital gains.

    InputsAGI, ISO bargain element, Large preference items
    OutputEstimated AMT liability vs regular tax
  • Calculator

    Freelancer Quarterly Estimated Tax

    Calculate your federal quarterly estimated tax. Combines self-employment tax, federal income tax, and the QBI deduction into a single quarterly payment estimate.

    InputsExpected net SE income, Filing status, Other income
    OutputQuarterly federal estimated payment

Important: estimates only, not tax advice

These calculators provide directional estimates for planning purposes only and use simplified assumptions. They do not constitute tax, legal, accounting, or financial advice and should not be relied upon for filing or business decisions.

Real tax outcomes depend on factors not modeled here, including state and local income tax, the Net Investment Income Tax (3.8% NIIT), the Additional Medicare Tax, alternative minimum tax (AMT) carryovers and credits, prior-year basis and loss carryforwards, retirement and HSA contributions, child and dependent credits, education credits, multi-state filing rules, foreign income, and entity-level elections.

Figures shown reflect 2026 federal rates, the One Big Beautiful Bill Act (OBBBA) where applicable, and IRS-published inflation adjustments. Tax law and IRS guidance change frequently and small input changes can produce materially different results. Always confirm with a licensed CPA before making decisions based on these results.

For a complete tax projection tied to your specific situation, get a free quote from TS CPA.

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