Free Tax Calculators, Updated for 2025 & 2026
Instant, accurate answers to America's most-asked tax questions — federal income tax, take-home pay, capital gains, self-employment tax, and more. Built on official IRS figures. No sign-up. No data leaves your browser.
Calculate My Income Tax Check My Take-Home PayAll Calculators
15 purpose-built tools covering the tax math people actually need — each with instant results, full breakdowns, and a plain-English explanation of the rules behind the numbers.
Federal Income Tax Calculator
Estimate your 2025 or 2026 federal income tax, effective rate, and bracket-by-bracket breakdown in seconds.
Open calculator →Paycheck Calculator
See your real take-home pay after federal tax, Social Security, Medicare, 401(k), and state tax.
Open calculator →Tax Refund Estimator
Find out if you're getting a refund or will owe the IRS — before you file.
Open calculator →Self-Employment Tax Calculator
Freelancers and 1099 contractors: calculate SE tax, the QBI deduction, and quarterly payments.
Open calculator →Capital Gains Tax Calculator
Calculate tax on stock, crypto, and property sales — long-term vs. short-term, plus NIIT.
Open calculator →401(k) Calculator
Project your retirement balance, employer match, and this year's tax savings against IRS limits.
Open calculator →Sales Tax Calculator
Add or back out sales tax for any amount, with built-in base rates for all 50 states.
Open calculator →Hourly to Salary Calculator
Convert hourly pay to annual salary — and see the after-tax value of every pay period.
Open calculator →W-4 Withholding Calculator
See if you'll owe or get a refund — and how much to put on line 4(c).
Open calculator →Marginal Tax Rate Calculator
Your bracket, effective rate, and the tax on your next $1,000.
Open calculator →AGI Calculator
Find your adjusted gross income and approximate MAGI.
Open calculator →S-Corp vs LLC Calculator
See the self-employment tax an S-corp election could save you.
Open calculator →Quarterly Estimated Tax Calculator
Your federal quarterly payment from expected profit, with due dates.
Open calculator →1099 Take-Home Calculator
What you keep from 1099 income after SE and income tax.
Open calculator →1099 vs W-2 Calculator
Compare take-home as a contractor vs an employee.
Open calculator →Why QuickTaxTools?
📅 Always current
Tax numbers change every year. Each tool runs on a single verified dataset of official IRS figures for 2025 and 2026 — brackets, deductions, FICA limits, credit amounts — refreshed whenever the IRS publishes updates.
🔒 Private by design
Your income never leaves your device. All math runs locally in your browser — there are no accounts, no databases, and nothing to leak. Refresh the page and it's gone.
🎓 Explains, not just calculates
Every result comes with the why: bracket-by-bracket breakdowns, worked examples, and guides that turn IRS jargon into decisions you can actually make.
Tax Guides
Plain-English explanations of the rules behind the calculators — every figure verified against official IRS publications.
2026 Tax Brackets and Federal Income Tax Rates
Every 2026 bracket, standard deduction, and threshold — updated from IRS Rev. Proc. 2025-32.
Read guide →How Tax Brackets Actually Work (Marginal vs. Effective Rates)
The #1 tax misconception explained: why moving into a higher bracket never lowers your take-home pay.
Read guide →Standard Deduction vs. Itemizing: Which Saves You More?
2025 and 2026 standard deduction amounts and the break-even math for itemizing.
Read guide →New Tax Deductions for 2025–2028: Tips, Overtime, Seniors & More
What the One Big Beautiful Bill Act means for your return: who qualifies and how much you can deduct.
Read guide →Popular Tax Guides
In-depth, plain-English answers to the questions behind the calculators — every figure verified against official IRS publications.
Where's My Refund?
Track your IRS refund, the 21-day timeline, and the PATH Act delay.
Read guide →2026 Tax Credits List
Child Tax Credit, EITC, education, child-care, and more — who qualifies.
Read guide →How to Fill Out a W-4 (2026)
A step-by-step walk through every line of the current Form W-4.
Read guide →Self-Employment Tax Guide
SE tax, the QBI deduction, deductions, and quarterly estimates for freelancers.
Read guide →Is Social Security Taxable?
The combined-income formula and the 50%/85% thresholds for 2026.
Read guide →Tax Glossary
Plain-English definitions for 50+ tax terms, AGI to withholding.
Open glossary →Frequently Asked Questions
Are QuickTaxTools calculators free?
Yes — every calculator and guide on this site is completely free, with no sign-up, account, or download. The site is supported by advertising.
Are the calculators updated for 2026?
Yes. Every tool uses the official IRS inflation-adjusted figures for tax years 2025 and 2026 (Rev. Proc. 2024-40 and 2025-32), including all changes from the One Big Beautiful Bill Act. We review figures whenever the IRS publishes updates.
Is my financial information safe?
Everything you type stays in your browser. Calculations run entirely on your device — no income data is ever transmitted, stored, or shared.
Can I rely on these results for filing my taxes?
Our tools use the same formulas as IRS worksheets and are accurate for typical situations, but they're educational estimates — not tax advice. For complex situations or final filing figures, consult a tax professional or tax software.