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
Estimate SE tax on your net self-employment earnings.
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Mileage Deduction Calculator
Estimate deductible business mileage using the standard rate.
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Quarterly Estimated Tax Planner
Plan your quarterly estimated tax payments.
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Capital Gains Estimate
Preliminary short-term / long-term capital gains estimate.
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Refund Estimator
Preliminary educational refund estimate — not a filing tool.
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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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