Documentation on Belgium

Belgium TIN Guide — Numéro National, Ondernemingsnummer & BTW/TVA Format

Complete guide to Belgian tax identifiers — Numéro National (NN), Ondernemingsnummer (KBO/BCE), and BTW/TVA number format with mod-97 checksum, BIS number for non-residents, and 2026 e-invoicing mandate.

How to verify Enterprise Number in Belgium?

Find out how to verify Enterprise Number in Belgium. Use Lookuptax for hassle-free validation of Enterprise Number in Belgium.

How to verify VAT number in Belgium?

How to verify a Belgian VAT number using the EU VIES portal and CBE Public Search. Covers Belgian VAT format, small enterprise exemption, VAT grouping, and invoice requirements.