Taxes
Estimate US federal taxes — self-employment, quarterly, capital gains, and refunds.
Taxes
Capital Gains Tax Calculator (2026)
Estimate 2026 federal tax on an investment gain — short-term (ordinary rates) vs long-term (0%, 15%, 20%), plus the 3.8% net investment income tax. A federal estimate, not tax advice.
Taxes
Quarterly Estimated Tax Calculator (2026)
Figure your 2026 quarterly estimated tax payments using the IRS safe-harbor rules, so you avoid an underpayment penalty. A federal estimate, not tax advice.
Taxes
Self-Employment Tax Calculator (2026)
Estimate your 2026 self-employment tax — the 15.3% Social Security and Medicare tax on freelance and business income, including the deductible half. A federal estimate, not tax advice.
Taxes
Tax Refund Estimator (2026)
Estimate your 2026 federal tax refund or balance due — income minus the standard deduction, through the 2026 brackets, versus what you had withheld. A federal estimate, not tax advice.