
EU VAT Validation & VAT Number Check API
Validate VAT numbers against live registries.

EU VAT Validation & VAT Number Check API
Validate VAT numbers against live registries.
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TaxID offers an EU VAT Number Validation API built specifically for developers. This service allows you to validate VAT and company IDs across 31 countries, including all 27 EU member states via VIES, plus the UK, Switzerland, Norway, and Australia.
Key features include:
- VIES-backed: Every validation uses the EU Commission's official VIES system for authoritative data.
- Sub-10ms cached responses: Valid numbers are cached in Redis for 24 hours, ensuring rapid lookups.
- Comprehensive coverage: Supports all 27 EU member states, with local format validation to save quota on malformed numbers.
- Company name & address: Successful responses include the registered company name and address, ready for use on invoices.
- Stripe-style errors: Provides machine-readable error codes for robust logic branching.
- Format validation first: Each VAT number is checked against a country-specific regex before the VIES call, preventing quota consumption for invalid formats.
The API is designed to be a reliable wrapper around VIES, eliminating common issues like SOAP complexities, unexpected downtime, and cryptic error messages. It solves the problem of accurate and efficient VAT number verification for businesses operating internationally, particularly within the EU, by providing a straightforward JSON API endpoint.
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