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Taxes

Income tax, sales tax, capital gains and after-tax returns. 20 free tools, each one showing the math behind its answer and running entirely in your browser.

Tax pages handle the arithmetic a return needs: brackets applied to an income figure, a capital gains total with the 0, 15 and 20 percent ladder, sales tax added to a price or taken back out of a receipt, VAT, and self-employment tax including the deduction that changes its own base.

Every page names the tax year its figures belong to and says what it leaves out: credits, phase-outs, state and local rules, and the difference between a marginal rate and an effective one - two numbers that are printed side by side because a bracket is not a bill.

These are estimates, not a return. Every page here is built to be checked against a filed form rather than to replace one, and each prints the figures it assumed so that a difference can be traced back to an input rather than argued about.

All 20 Taxes tools

1099 Tax CalculatorWork out the 2026 federal tax on 1099 contract income: self-employment tax, the income tax under it, the QBI deduction, and what to set aside from every dollar.Estimate tax on 1099 income →
Capital Gains Tax CalculatorWork out capital gains tax for 2026: the 0%, 15% and 20% ladder, what a short-term gain costs instead, and the 3.8% net investment income tax.Estimate capital gains tax →
Child Tax Credit CalculatorWork out the 2026 child tax credit: $2,200 per qualifying child, cut by $50 for each $1,000 of MAGI above $200,000, or $400,000 joint, with a $2,500 earned income floor.Count your 2026 child tax credit →
Crypto Tax CalculatorMatch a crypto sale to your purchases lot by lot on the IRS default: first in, first out. Estimate the federal tax on the short- and long-term gain.Estimate the tax on crypto gains →
Estate Tax CalculatorEstimate the federal estate tax for 2026: subtract debts and the marital and charitable deductions, then pay 40% of the excess over the $15,000,000 exclusion.Estimate the federal estate tax on an estate →
Gift Tax CalculatorEstimate the federal gift tax for 2026: the $19,000 annual exclusion comes off first, then 40% of the excess once gifts pass the $15,000,000 lifetime exemption.Price the 2026 federal gift tax →
Home Office Deduction CalculatorPrice the 2026 simplified home office deduction: $5 per square foot of the space, capped at 300 square feet, prorated for months used, from IRS Publication 587.Price the simplified home office deduction →
Home Sale Capital Gains CalculatorEstimate federal tax on a home sale: the gain, the $250K/$500K Section 121 exclusion, and the long-term capital gains tax that remains.Estimate tax on a home sale →
Income Tax CalculatorSee federal income tax bracket by bracket for 2026, plus FICA and state tax, and what a raise really adds to your tax bill.Estimate income tax →
Mileage Deduction CalculatorWork out your 2026 business mileage deduction at both IRS rates: 72.5 cents a mile through June 30 and 76 cents from July 1, on the miles you actually drove for work.Price your 2026 mileage deduction →
Quarterly Estimated Tax CalculatorEstimate the 2026 federal tax your withholding leaves uncovered and the four safe-harbor quarterly payments that keep you out of the underpayment penalty.Plan quarterly estimated payments →
Retirement Tax Savings CalculatorSee what a pre-tax 401(k), SIMPLE IRA or traditional IRA contribution is worth in federal tax this year, capped at the 2026 elective deferral limits.Price the tax saved by a retirement contribution →
Sales Tax CalculatorAdd state, county, city and district sales tax to a price, or work out how much tax is hidden inside a total you already paid.Calculate sales tax →
Self-Employment Tax CalculatorWork out self-employment tax the way Schedule SE does: 92.35% of profit at 15.3%, the deductible half, the QBI deduction and quarterly payments.Estimate self-employment tax →
Standard vs Itemized CalculatorSee whether itemizing your Schedule A deductions beats the 2026 standard deduction, and what the bigger deduction is worth after the SALT cap and the 0.5% charity floor.Compare standard and itemized deductions →
State and Local Tax (SALT) Deduction CalculatorCap your 2026 SALT deduction: $40,400 ($20,200 married filing separately), reduced when MAGI is high but never below $10,000, from IRS Publication 505 (2026).Cap your state and local tax deduction →
Tax Bracket CalculatorSee which 2026 federal income tax bracket your taxable income falls in, the exact bill band by band, and what a raise adds at the margin.See your tax bracket →
Tax Refund CalculatorEstimate your 2026 federal refund or the balance you still owe: the income tax bill for the year minus what your paychecks withheld, plus the W-4 fix.Estimate your refund or balance →
VAT CalculatorAdd VAT to a net price, take VAT out of a gross price, and check second-hand sales under the margin scheme at any VAT rate.Calculate VAT →
W-4 Withholding CalculatorSee whether your 2026 Form W-4 will produce a big refund or an unexpected bill, and the exact extra-withholding amount per paycheck to land on zero.Tune your W-4 withholding →

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