Built for Freelancers Who Are Tired of Overpaying
TaxNinja is a free IRS Schedule C tax calculator for US freelancers, 1099 contractors, and self-employed workers. No signup. No cost. No data collected. Just answers.
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TaxNinja is a free IRS Schedule C tax calculator for US freelancers, 1099 contractors, and self-employed workers. No signup. No cost. No data collected. Just answers.
TaxNinja checks every Schedule C deduction category — from home office to SEP-IRA contributions.
The average TaxNinja user finds $6,200 in deductions they weren't claiming. Some find more.
73 million Americans freelance, contract, or work for themselves. Most overpay taxes because no free tool existed — until TaxNinja.
TaxNinja was built because 73 million US freelancers deserve better. There are 73 million freelancers, 1099 contractors, and self-employed workers in the United States — and almost none of them have a simple, free tool to estimate their taxes. TurboTax charges $89–$169 for self-employed filers. QuickBooks costs $15–$25 per month. TaxNinja fills that gap — completely free, no signup, no nonsense.
At its core, TaxNinja does one thing extremely well: it tells freelancers how much they owe and how much they can save. TaxNinja walks you through every IRS Schedule C deduction category — from the home office deduction and business mileage to self-employed health insurance and SEP-IRA contributions. Enter your 1099 income, check off your deductions, and instantly see your estimated federal tax liability, self-employment tax, effective tax rate, and quarterly payment schedule. Everything runs in your browser. No data is ever sent to a server. No account required.
Infrastructure & Hosting
TaxNinja runs on Vercel — the same infrastructure used by Airbnb, Notion, and The Washington Post. Vercel Security →
TaxNinja will always be free for every freelancer who needs it. That is not a marketing claim — it is TaxNinja's founding principle. The site is supported by Google AdSense ads, not by charging users. TaxNinja's tax brackets, Schedule C categories, and IRS rates are updated annually so the calculator stays accurate. If you find an error, contact us — TaxNinja takes accuracy seriously.
For questions, corrections, or feedback about TaxNinja, email us at contact@taxninja.site. We read every message.
For privacy-related questions, email privacy@taxninja.site.
TaxNinja is not a tax preparer, a CPA firm, an enrolled agent, or a substitute for professional tax advice. TaxNinja does not file your taxes. TaxNinja does not give legal or financial advice. TaxNinja is a free estimation tool — it gives you the numbers you need to understand your tax situation and make informed decisions. Always verify critical tax decisions with a licensed professional.
FREE TAXNINJA TOOLS
Enter your 1099 income and deductions. TaxNinja estimates your full federal tax bill and quarterly payments.
Open calculator →Answer 10 questions about your work. TaxNinja shows every IRS deduction you qualify for — with estimated savings.
Find deductions →Calculate your exact Q1–Q4 2026 IRS quarterly payment amounts and due dates — before the penalties start.
Estimate payments →