About Numurio

Numurio is an independent project that computes take-home pay for eight payroll systems: the United States, United Kingdom, Canada, Australia, Germany, Taiwan, Mexico and Brazil. It is not a payroll provider, an accounting firm or a tax preparer, and it does not sell preparation services.

Why this site exists

Most salary pages on the internet quote one number and never show the arithmetic. That number is usually right for one person in one city in one year, and wrong for everyone else. The alternative here is to publish the chain: gross pay, each statutory deduction in the order the law applies it, the ceiling that caps it, and the net result. If you can read the chain, you can see which assumption does not match your situation — and change it.

How the numbers are produced

Each market has a JSON dataset with the tax year's rates, ceilings, brackets and source list, plus a calculation module that reads only from that dataset. Pages are generated from the same module the interactive calculator uses, so a static page and a live calculation cannot disagree. The sources page lists every document the datasets rest on, and the methodology page states the chain per market.

Editorial rules

• A rate ships only with a citation. If a source cannot be named, the number does not go on the page.
• What is not modelled is printed on the page, in plain language, rather than left for the reader to discover after comparing with a payslip.
• No page claims precision it does not have. Where a statutory figure varies per person — the German health-insurance surcharge, a US city tax, a provincial credit — the page says which value it used.
• Corrections are made by editing the dataset and rebuilding, not by patching a sentence on one page. That keeps 2,300 pages consistent with each other.

What this site will not do

It will not tell you what to do with your money. It has no accounts, no file uploads, no payroll integration and no advice product. Every result is an estimate of a statutory calculation, and it is only as good as the inputs you type. Before relying on a figure, compare it with your employer's payroll system or a licensed professional in your jurisdiction.

See the financial disclaimer and the privacy note.