Dutch Company Numbers: KVK, RSIN, VAT, EORI

KVK, RSIN, btw-id, EORI: Every Dutch Company Number Mapped

Updated: 11 August 2026 Numbers KVK RSIN

A fresh Dutch BV (besloten vennootschap, the Dutch private limited company) collects numbers like stamps: KVK, RSIN, btw-id, omzetbelastingnummer, loonheffingennummer, EORI. Each identifies the same company to a different authority — here is the family tree.

The map

Number	Identifies you to	Appears on
KVK-nummer	The trade register and the market	Invoices, website, contracts
RSIN	Government systems — the root number	The KVK extract
Btw-id	Customers and VIES	Invoices, webshop
Omzetbelastingnummer	The tax authority’s VAT administration	Tax correspondence and filings
Loonheffingennummer	Payroll administration	Wage-tax filings, payslips
EORI	Customs, EU-wide	Import and export declarations

How they derive

The RSIN is the root: the omzetbelastingnummer and the EORI build on it with prefixes and suffixes, while the btw-id stands apart by design — a privacy-safe public number. The btw-id/EORI split in trade practice: VAT number vs EORI.

Which number where

Invoices carry KVK and btw-id; letters from the Belastingdienst quote the omzetbelasting- or loonheffingennummer; customs paperwork runs on EORI. Quoting the right number in the right channel is half of fast answers from every desk.

Frequently Asked Questions

Do the numbers arrive automatically at incorporation? +

KVK and RSIN arrive at registration; the VAT pair follows by post within weeks; payroll and EORI numbers arrive on first registration for each — request the EORI before the first shipment.