🏢

VAT Number Validator

Validate EU VAT number format for all 27 member states. Country-specific length and pattern rules. Runs 100% in your browser.

Reference

How do EU VAT numbers work?

EU VAT numbers consist of a 2-letter country code followed by a country-specific identifier. Length and characters vary: Germany (DE) uses 9 digits, France (FR) uses 11 alphanumeric, Italy (IT) uses 11 digits. This tool validates the structural format. To verify a VAT number is actually registered, query the VIES service.

Offline format check

This tool checks structure only. To confirm a VAT number is real and active, query the EU VIES service.

Common uses

  • Invoicing — pre-validate customer VAT before B2B sales.
  • Form input — show real-time feedback to users.
  • Data cleanup — find malformed VAT numbers in CRMs.
  • Compliance — confirm format before reverse-charge handling.

Privacy

All validation runs 100% in your browser. No data is sent to any server.

← Back to all tools