Contact
Numurio is maintained by a small editorial team that keeps the tax tables, writes the explanations and runs the self-tests. There is one address that reaches a person:
What is most useful to send
A figure on this site is only as good as the table behind it, so a correction report that cites the source is worth more than a general complaint. The fastest version of a useful message contains:
- The page URL and the salary, state or tax class you entered.
- The number the page shows, and the number you expected.
- The official document that settles it — a revenue agency page, a statutory rate table, or a published contribution ceiling — with the tax year it applies to.
- Optionally, the line of the payslip or the payroll system output you are comparing against.
If the table is wrong, the engine, the page copy and the self-test that guards that figure are all corrected together, and the sources page records which document the new figure came from.
What this address cannot do
Numurio is not an accounting firm, a tax preparer or a payroll bureau, and the calculators are estimates built from published tables. Messages asking for a personal tax position, a filing decision, a payslip dispute or an opinion on a specific employer's withholding cannot be answered here — those need a licensed professional who can see your full situation. What can be answered is anything about how this site computes a number, which table it used, and why two figures differ.
Response
Corrections with a source are read first, because they affect every page that shares the table. Expect a reply within a few working days rather than within an hour. If a correction changes a published figure, the affected pages and their visible "tax year / reviewed" line are updated together so the date on the page matches the change.
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