Netherlands BTW Validator
Validate Dutch VAT Number
Enter a Dutch VAT Number to verify its validity.
About this Validator
This tool validates Dutch VAT Numbers according to official requirements.
The validator checks if a given BTW number follows the correct structure for both VAT ID and turnover tax numbers.
This validation only confirms if a BTW number follows the correct format. It does not verify if the number is actually registered with Dutch tax authorities.
What is a BTW-identificatienummer/Omzetbelastingnummer?
BTW Number Structure: VAT ID Number (btw-identificatienummer): • 'NL' prefix • 9 digits • 'B' + company index (01-99) • Used for EU trade • No BSN included (since 2020) Turnover Tax Number (omzetbelastingnummer): • BSN or RSIN • 'B' + company index • Used for tax administration
Validation Features: • Length verification • Format compliance • Prefix validation • Company index check • 97-modulus check
Used for: • EU trade verification • Tax declarations • Business invoices • Website display • Chamber of Commerce • VIES verification
Important Notes: • Dual number system • Privacy compliant • EORI compatible • Automatic issuance • Business verification
If you need to generate a BTW number for testing purposes, here is a Netherlands BTW Generator