Taxes Calculators
Taxes are where small misunderstandings get expensive. These calculators show the bracket-by-bracket math, the gap between withholding and what you actually owe, and the cost of moves like a Roth conversion.
Federal Income Tax Calculator (2026) Calculate your federal income tax on a given taxable income, with a clear bracket-by-bracket breakdown. Effective vs Marginal Tax Rate Calculator (2026) Compare your marginal tax bracket with your true effective rate, the two numbers most people mix up. Tax Bracket Calculator (2026) Find out which federal tax bracket your income falls into for 2026. Bonus Tax Calculator Your bonus is withheld at a flat 22%, but your real tax on it depends on your bracket. This shows the gap. Roth Conversion Calculator See the federal tax cost of a Roth conversion and the bracket it pushes you into this year. Self-Employment Tax Calculator (2026) Work out your self-employment tax for 2026, the 15.3 percent that covers Social Security and Medicare when you work for yourself. HSA Tax Savings Calculator (2026) See what an HSA contribution saves in federal income tax and FICA this year, and the real cost of the contribution after those savings. Take-Home Paycheck Calculator (2026) See what lands in your paycheck after federal income tax and FICA, and how pre-tax 401(k) and benefits change it. Quarterly Estimated Tax Calculator (2026) Estimate your quarterly tax payments as a self-employed person, combining self-employment tax and federal income tax. Capital Gains Tax Calculator (2026) Calculate the tax on a long-term capital gain in 2026, with the gain stacked on your income across the 0, 15, and 20 percent rates. QBI Deduction Calculator Estimate your 20 percent Section 199A qualified business income deduction, with the 2026 thresholds, wage limit, and SSTB phase-out. Take-Home Pay by State Calculator See your real take-home pay in your state after federal income tax, Social Security and Medicare, and state income tax. State Income Tax Calculator Estimate your 2026 state income tax from your income and filing status, using your state brackets and standard deduction. Reverse Paycheck Calculator Work backward from the take-home pay you want to the gross salary you need in your state, after every tax.