Free calculators for federal tax, self-employment tax, quarterly payments, and state comparisons. Built by a former IRS agent who actually reads the fine print.
Estimate your federal tax based on income, deductions, and filing status. Uses 2026 OBBBA brackets.
Calculate NowCalculate Schedule C and SE tax for freelancers, contractors, and small business owners.
Calculate NowPredict whether you'll get a refund or owe money before you file. Plan your cash flow.
Calculate NowCompare standard deduction vs itemized to find the best option for your 2026 return.
Compare NowCalculate Q1-Q4 estimated tax payments for self-employed. Never miss a deadline again.
Calculate NowCompare state income tax rates across all 50 states. See where your paycheck goes furthest.
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Every calculator tested against official IRS worksheets and Publication 505. No shortcuts.
All calculations happen in your browser. No data sent to servers. No tracking.
Includes OBBBA changes, new brackets, and updated standard deductions for 2026.