Tax Calculators
Practical calculators, transparent assumptions.
Every calculator is a preliminary educational estimate — not tax advice, and not a substitute for filing an actual return.
Self-Employment Tax Estimator
Regular SE tax for one taxpayer, with the wage-base adjustment.
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Mileage Expense Calculator
Illustrate business, medical, moving, and charitable mileage at IRS rates.
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Quarterly Estimated Tax Planner
Safe-harbor targets, 1040-ES due dates, and dated payments.
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Selected-Rate Capital Gain Illustration
Gain times a rate you choose — an illustration, not a calculated tax.
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Basic Federal Wage Tax Estimator
Ordinary W-2 wages only, compared with withholding — not a refund estimate.
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W-4 Withholding
Guidance on the official IRS Tax Withholding Estimator.
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Calculator results are estimates for educational purposes only and do not constitute tax advice. Actual tax outcomes depend on many factors including credits, deductions, other income, and filing status. See the official IRS Tax Withholding Estimator and speak with a qualified professional before making decisions.
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