Tools

All calculators

Free, no signup, and the working is shown on every page. More are added regularly — the list below includes what’s in development.

United States only. These calculators use US federal tax rules and will not give correct results for other countries.

Self-employed & freelance

The money questions that come with working for yourself — what you owe, what you keep, and what it costs to run. US federal tax rules.

Work out your self-employment tax and quarterly estimated payments from your net profit — including the deduction most calculators leave out.

What you actually keep after federal tax, self-employment tax and your state — and how that compares to living somewhere else.

What forming an LLC actually costs in your state — filing fees, franchise tax and the annual report costs people forget about.

Make a clean, professional invoice PDF in your browser. Nothing uploaded, no account, no watermark.

Whether electing S-corp status would actually save you money, once payroll, a separate return and the QBI interaction are counted.

Two offers, two tax treatments. What each is actually worth after tax, benefits, and the payroll tax an employer pays invisibly on your behalf.

How much you can shelter under each plan at your income, what it saves in tax, and the December deadline that usually decides the choice.

Turn the salary you want into an hourly rate that actually survives taxes, unpaid time and business costs.

What you must have paid by the next quarterly deadline to be penalty-proof — which is usually far less than what you will eventually owe.