Updated for 2025 Tax Year — 100% Free

Free Online Tax Tools & Calculators

Tax bracket calculator, 401k planner, capital gains estimator, refund tracker, 143+ expert tax answers — all free, no signup required.

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Free Tax Tools

Free online tax calculators and estimators

Tax Bracket Calculator

Calculate your 2025 federal tax bracket and effective tax rate for single, married, or head of household filing.

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Tax Refund Estimator

Estimate your federal tax refund or amount owed based on your income, withholding, and deductions.

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W-4 Withholding Calculator

Calculate how to fill out your W-4 form to get the right amount of tax withheld from your paycheck.

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Paycheck Calculator

Calculate your take-home pay after federal, state, and FICA taxes. Supports NY, TX, CA and more.

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401k Calculator

Project your 401k retirement savings growth with employer match and compound interest for 2025 contribution limits.

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Capital Gains Calculator

Calculate capital gains tax on investments with short-term and long-term rates. Includes NIIT for 2025.

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Amortization Calculator

Full loan amortization schedule showing monthly payments, total interest, and year-by-year principal breakdown.

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Loan Payment Calculator

Calculate monthly loan payments, total interest, and total cost for any loan type.

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Sales Tax Calculator

Calculate sales tax for any US state. Compare rates between states side by side. Updated for 2025.

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Margin Calculator

Calculate gross profit margin and markup percentage for your products and pricing decisions.

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Tax Answers Database

Search 143+ expert-written answers to common tax questions — updated for the 2025 tax year.

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Tax Filing Guides

Comprehensive guides covering deductions, IRS forms, filing status, capital gains, and more.

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Tax Category Explorer

Browse tax topics across 1 categories including income tax, deductions, credits, and state taxes.

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2025 Tax Bracket Calculator

Calculate your federal income tax bracket, marginal rate, and effective tax rate. Supports single, married filing jointly, and head of household.

Tax Bracket Calculator

2025 federal income tax brackets

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Tax Refund Estimator

Estimate your 2025 federal tax refund or amount owed. Enter your income and withholding to see your estimated refund.

Refund Timeline Estimator

Estimate when your refund will arrive

W-4 Withholding Calculator

Calculate how to fill out your W-4 form. Adjust your withholding to avoid owing taxes or getting too large a refund.

W-4 Withholding Estimator

See how much should be withheld per paycheck

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Expert Tax Answers

Most popular tax questions answered

Expert answers to the most-searched tax questions, updated for the 2025 tax year with IRS-accurate data.

Comprehensive Guides

Free tax filing guides for 2025

In-depth tax guides covering deductions, IRS forms, filing status, and more with links to related Q&A topics.

Explore by Category

Tax topics organized by category

Explore free tax resources

Everything you need for the 2025 tax season — tools, answers, and guides.