How the EORI identifier is structured
EORI formatting follows rules defined by customs administrations. A common pattern includes a country code followed by a national identifier element.
Common components
- Country prefix: often an ISO country code (for example, two letters).
- National identifier element: an element aligned with a national registration or tax identifier.
- Internal checks: some administrations include additional digits or checks for internal processing.
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What this page does and does not do
This page describes patterns at a high level. It does not confirm whether any specific sequence is valid, registered, or active.
Neutral examples: Examples below are schematic so you can recognise the idea of a prefix and an identifier element, not a real format guarantee.
Example patterns (illustrative only):\nFR + national identifier element\nES + national identifier element\nNL + national identifier element
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Why formats can differ
EORI is a customs identifier, but registration is often administered at national level. That can influence how the identifier is composed and presented. Official sources are listed on the Sources page.