SelfTax — Free Tax Preparation

Prepare and file your taxes for free. Your data never leaves your device.

The tax lobbyist have built an industry that charges regular Americans $100+ for data entry. SelfTax was built to make this free. Upload your tax documents (W-2, 1099, 1098, etc.), and SelfTax extracts your data, calculates your return, and auto-fills supported free IRS filing sites — all without your sensitive information ever leaving your device. You review the numbers and file it yourself. SelfTax does the math — you stay in control. HOW IT WORKS: 1. Upload your tax documents into the extension 2. SelfTax redacts your SSN, name, and address before any processing 3. The tax engine calculates your return — no AI guessing, every number is auditable 4. Navigate to a supported free filing site and click Autofill — SelfTax fills the forms for you 5. Review your return and submit it yourself PRIVACY FIRST: Your Social Security number, name, address, and account numbers never leave your computer. All tax math runs locally in your browser. If you enable AI document extraction (optional), personal information is stripped and replaced with placeholders before anything is sent. WHAT'S SUPPORTED: - W-2 wages - Rental income (Schedule E) with passive activity loss - Capital loss carryover (Schedule D) - Itemized deductions — SALT, mortgage interest (Schedule A) - Child Tax Credit (Schedule 8812) - Dependent care credit (Form 2441) - QBI deduction (Form 8995) - Tax year 2025 IMPORTANT: SelfTax is a tax preparation tool, not a tax filing service. It calculates your return and fills the forms — you review and submit through free IRS filing sites. SelfTax is not affiliated with the IRS. OPEN SOURCE: SelfTax is free and open source. Review the code yourself at: https://github.com/selftax/selftax