Alpha testing: all current functionality is free while VAT Engine is in active development

Report an issue

Corrections policy

If you find an error in a public VAT Engine page, documentation example, or data presentation, send the page URL, a concise description, the relevant effective date, and a primary-source link where possible.

What this helps you do

VAT Engine will review the report, correct verified public issues, and record material public-facing changes in the changelog when appropriate.

  • Use contact@vat-engine.app for public corrections and responsible disclosure coordination.
  • Do not send API keys, customer data, order data, or other secrets by email.
  • Source changes are reviewed before a published rate or threshold representation is changed.
  • The policy does not provide individual tax advice or a filing determination.