Basic validation flow
Start with the full number exactly as received, remove spaces or hyphens, then validate the cleaned value. The first two characters should be a supported country prefix.
- Use the full EORI, not only a VAT or company number fragment.
- Confirm the country prefix matches the operator location or customs registration.
- Retry later if the official service is temporarily unavailable.
How to read the response
Valid means the number is registered in the lookup source. Not valid or not found means you should confirm the number with the counterparty before filing or releasing a shipment.
Escalation rule
If a high-value shipment, regulated product or deadline depends on the result, use the lookup as a first pass and confirm through official customs channels.
FAQ
Why can a real company return not valid?+
The number may be mistyped, formatted with the wrong prefix, inactive in the source, or not an EORI even if the company exists.
Does EORICheck issue certificates?+
No. EORICheck is an independent validation interface and does not issue official customs certificates.