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Money math for people
who work for themselves

22 calculators for the numbers freelancing makes complicated: what you owe, what to set aside, what to charge, and whether the work is actually paying. Everything runs in your browser and nothing you type is stored or sent anywhere.

Taxes and deductions

What you owe, and what you can write off.

Rates and pricing

What to charge, and what you actually keep.

Business health

Margins, breakeven, and staying solvent.

Guides

Plain-English answers, each linked to a calculator.

Start here if you're new to freelancing

Three numbers matter more than the rest, and they build on each other.

What you'll owe. Freelance income arrives untaxed, which means the bill lands later and lands whole. Self-employment tax alone runs 15.3% before income tax enters the picture. Knowing that figure early is the difference between a manageable spring and a bad one.

What to set aside. Once you know the annual number, the practical move is moving a percentage of every payment into a separate account the day it arrives, and paying the IRS four times a year rather than once in April.

What to charge. Rates that look generous next to a salary often aren't, once unpaid time and self-funded benefits are counted. Working backward from the income you actually want is more reliable than pricing against what other people quote.

Common questions

Is any of this stored?

No. Every calculation runs in your browser. Nothing you enter is transmitted to a server, saved, or associated with you.

How accurate are these?

They're planning estimates built on current federal figures. They don't model every credit, deduction, state tax, or unusual filing situation, and tax figures change annually. Treat the output as a starting point for a conversation with a tax professional, not a filing document.

Do these cover state taxes?

No. Federal only. State income tax rules vary enormously and several states have none at all.

Do I need an account?

No. There's nothing to sign up for and nothing to install.