EU VAT guide
Invalid VAT number in VIES
An invalid VIES result means VIES did not confirm the number as registered for intra-EU transactions at the time of the check.
An invalid VIES result means VIES did not confirm the number as registered for intra-EU transactions at the time of the check.
Common reasons
The number may not exist, may not be activated for intra-EU transactions, or the registration may not yet be finalised in the national database.
Ask the customer to confirm the exact VAT ID and whether their local tax authority has activated it for cross-border EU transactions.
Validating VAT numbers at volume?
Join the batch/API list for CSV validation, retries, audit exports, and developer access.
Related VIES guides
- VIES TIMEOUT errorWhat the VIES TIMEOUT error means and how to handle delayed VAT checks.
- GLOBAL_MAX_CONCURRENT_REQ VIES errorUnderstand the GLOBAL_MAX_CONCURRENT_REQ VIES error and safe retry behavior.
- MS_MAX_CONCURRENT_REQ VIES errorMS_MAX_CONCURRENT_REQ means one national VAT registry is refusing concurrent VIES requests, not that the VAT number is bad. How to back off safely, plus live per-country VIES status.
- INVALID_INPUT VIES errorFix INVALID_INPUT errors when sending EU VAT numbers to VIES.
- EU VAT number formatCountry-by-country basics for EU VAT number formats before a VIES check.
- VAT number format checkCheck whether a VAT number format looks valid before running a VIES lookup.