Rekenbox · Checks
Your supplier. Their details checked.
Review VAT registration, EORI and IBAN together. One trading partner or an entire supplier list.Registry checks through the European Commission
Review your trading partner.
Enter at least one registration number or IBAN. Receive a result for each part. We do not assess whether your contact works at this company.
10 free registry checks per IP address per day, shared by VIES, EORI and supplier checks. A shared connection shares this allowance. It renews at midnight Netherlands time.
For single checks, free allowance first, then credits. 6 credits per completed supplier check, including an invalid registration. Outages cost no credits.
Top up credits · from €5
One balance for all of Rekenbox
Rekenbox credits
1 credit = €0.01. A completed registry or bulk check costs 6 credits; a detailed report costs 1,900 credits. The same balance covers reports, bulk checks and the API. You can also buy a single report for €19 without credits.
Including VAT. No subscription, expiry or automatic top-ups. You choose where to spend your credits.
Save on this device for free
Understand your result
How this tool works
Enter a trading partner’s registration numbers and IBAN. Rekenbox asks VIES and EORI about registrations and validates the IBAN format. See individual results and available names so you can review differences.
Common questions
Which details does Rekenbox check?
Supplied VAT and EORI numbers with the European Commission, plus IBAN format and checksum. Chamber of Commerce data, account ownership and creditworthiness are not included.
Do I need every field?
No. Enter at least one VAT number, EORI number or IBAN. Missing data never receives an invented result.
What does a check with multiple identifiers cost?
A completed supplier row costs 6 credits in bulk, even when both VAT and EORI are checked. An outage prevents the entire row from being charged.
Which details do you need?
- Supplier
- VAT number
- EORI number
- IBAN
Limits of this tool
- Registrations are snapshots. IBAN validation confirms format, not ownership. This is not an identity or creditworthiness check.
Year: 2026 · Version 2026.1
Sources for this tool
- European Commission — VIES · calculation source checked 2026-09-06
Prepared by the Rekenbox product team at Winstwaker. The listed source references and calculation version make the method traceable. Report a content error Last updated: 2026-09-06. Rekenbox is a product by Winstwaker. The tool applies a calculation model to your inputs; a result or paid report is not a personal assessment by an adviser.