Belgium Tax ID Numbers
National Number (NN)
For Individuals, Example: 63.11.28-001.74
The Belgian Numero National (NN) is 11 digits in the format NN.NN.NN-NNN.NN. It is issued to individuals and it encodes the date of birth.
Ondernemingsnummer (VAT)
For Entities, VAT, Example: 0403019261
The Belgian enterprise number (Ondernemingsnummer) is 10 digits in the format NNNNNNNNNN with an optional prefix of BE. Older 9-digit numbers should start with a leading zero. It is a unique identifier of companies within the Belgian administrative services. It was previously known as the VAT ID number.
Verify tax ID numbers with Tax ID Pro:
- Validate tax ID numbers one at a time or with a spreadsheet.
- Learn how to integrate Tax ID Pro into your own software.
- Obtain documentation with our Know Your Customer (KYC) service.