Free calculators for freelancers & the self-employed
No signup, no spreadsheet, no email wall. Plug in your numbers and get a straight answer, built specifically for people who work for themselves.
Hourly Rate Calculator
Work out what to charge based on the income you want, your expenses, and how much of your time is actually billable.
Quarterly Estimated Tax Calculator
Estimate your US federal quarterly payments — self-employment tax, income tax, the QBI deduction, and the safe harbor that keeps you penalty-free.
2026 · US federalSimple Invoice Generator
Generate a clean, professional invoice in your browser — no account required.
Coming soonGuides
The context behind the numbers — what they mean and what to do about them.
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How to set your freelance rate without guessing
Why dividing a salary by 2,080 hours gives you a rate that's roughly half of what you need.
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Quarterly estimated taxes, explained
Who pays, what self-employment tax really is, the 2026 dates, and the safe harbor rule.
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Freelance invoicing basics
What every invoice needs, choosing payment terms, and what to do when a client pays late.
Why this site exists
Most "freelance calculators" online are bait for a SaaS trial or bury the math behind a giant email-capture form. These don't. Every calculator shows its work so you can trust the number — and adjust it if your situation is different from the assumptions.