Contact us

Report a wrong number

A calculator is only useful if the rates behind it are right. If a bracket, threshold, contribution ceiling or allowance on this site does not match the current government source, email corrections@globalincometaxcalculator.com with the page URL, the figure you believe is wrong, and the source you are comparing against. Verified corrections are applied and the page's review date is updated.

Request a country, state or province

We add jurisdictions based on demand. Send the country or region you need to requests@globalincometaxcalculator.com and tell us which deductions matter most for your situation, so the calculator covers them rather than a simplified federal-only view.

Editorial and general enquiries

For questions about how a guide was researched, permission to cite our figures, or press enquiries, write to editorial@globalincometaxcalculator.com. We explain our sources and assumptions on the methodology page and are happy to expand on any of them.

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The site is funded by advertising placed away from calculator inputs and results. For advertising enquiries, contact advertising@globalincometaxcalculator.com.

What we cannot do

We cannot give personalised tax advice, review your return, or tell you what to file. The calculators model a standard employee and individual circumstances vary too much for a general tool to replace a qualified accountant or tax adviser in your jurisdiction. For filing questions, contact your national tax authority or a licensed professional.

Response times

We aim to reply to corrections within two working days because accuracy issues take priority. Feature requests and general enquiries are answered in batches, usually within a week.