SI VAT format
Slovenia VAT number check
Check a Slovenia VAT number against VIES and confirm whether it is currently reported as valid for intra-EU transactions.
Expected format
A typical Slovenia VAT ID looks like SI12345678. You can paste the full number with the SI prefix or select Slovenia in the checker.
What VIES can return
- Valid: the VAT number is currently confirmed for intra-EU transactions.
- Invalid: VIES did not confirm the number as valid at the time of the check.
- Unavailable: VIES or the national VAT registry did not reply.