Help us improve accuracy
Report a Data Issue
If you spot something wrong with a calculator, country page, official source link, VAT rate, or tax data, please report it. We rely on user feedback to keep planning estimates trustworthy.
What you can report
- Wrong VAT rate or tax rate shown on a country page
- Broken or outdated official source link
- Calculator producing an incorrect result with valid inputs
- Missing country, city or calculator
- Issue with assumptions, labels or methodology description
- Accessibility issue or UI bug
What to include
- Page URL where the issue appears
- Country or city if relevant
- Calculator name
- What looks wrong — describe what you expected vs what you saw
- Suggested official source link if you have one
- Date you checked
How to send the report
Click the button below to open a pre-filled email. Add the details and send.
Send report by emailOfficial source policy
Only official sources from government tax authorities, social insurance institutions, EU Commission, ministry websites or equivalent statutory authorities are accepted. Blog posts, news articles, AI-generated content, undated PDFs from unofficial sources, and commercial calculators cannot be used as verified sources.