About Freelance Tax Toolkit

Freelance Tax Toolkit is an independently built set of free calculators for freelancers, 1099 contractors, and small business owners. It's built and maintained by a solo developer — not a CPA firm or tax advisory service.

Every calculator's formulas are documented on its own page under "Methodology," with the specific IRS publication each figure is sourced from. Where a figure hasn't been directly verified against an official source yet, that's disclosed rather than presented as fact — see each calculator's "Limitations" section.

This site does not provide personalized tax, legal, or financial advice. It provides general-purpose estimation tools based on publicly published federal tax rules. For advice specific to your situation, consult a licensed CPA, enrolled agent, or attorney.

Questions or corrections: see the Contact page.