Most online tax calculators are built for W-2 employees, or bury the freelancer-specific math (self-employment tax, the Social Security wage base, the QBI deduction, the four uneven quarterly due dates) behind a generic "income tax calculator" that doesn't actually model any of it. That gap is what this site fills: a set of small, focused tools built specifically for U.S. 1099 freelancers and independent contractors, using verified 2026 IRS figures, cited on every page.

Who built this

This site is operated by Archie November, and is a companion to the spreadsheet template shop, including the Freelancer Tax & Invoice Tracker 2026 this calculator is built alongside.

An honest note on AI assistance

This site — its code, copy, calculator logic — was built with the assistance of AI tools, working from a defined structure and directly cited sources. That's stated here plainly rather than hidden. What that means in practice:

  • Every 2026 tax figure used in the calculators (self-employment tax rate, Social Security wage base, federal brackets, standard deduction, QBI deduction, mileage rate, quarterly due dates) is sourced to IRS.gov or SSA.gov, cited directly on the relevant page, and was checked against those sources before publishing.
  • The unit tests behind the calculator engine hand-verify the bracket math at real boundary values (like exactly $16,100, the 2026 single standard deduction) — not just "does it run."
  • No testimonials, reviews, or user quotes appear anywhere on this site. If you don't see any, that's intentional — none have been fabricated, and none will be added until they're real.

What this site isn't

It isn't tax advice, legal advice, or a substitute for a licensed CPA or Enrolled Agent. It estimates federal tax only — state income tax, self-employed health insurance and retirement plan deductions, prior-year safe-harbor calculations, and many credits are not modeled. Every number here is an estimate to help you plan a conversation with a tax professional, not a guarantee of what you'll actually owe.

For more on data handling, see the Privacy page.