As of January 1, 2026, a major change will come into effect in trade with the European Union: the EORI SIREN number will become mandatory for all companies importing or exporting goods to or from the EU.
This reform marks the end of the EORI number based on the SIRET, in favor of a single identifier linked to the company’s SIREN. It is a regulatory change that directly affects many players in international trade and logistics.
What is the EORI number and why is it changing?
The EORI number (Economic Operators Registration and Identification) is a mandatory customs identifier for any company carrying out import or export operations within the European Union. It enables customs authorities to identify economic operators reliably and in a harmonized way.
Until now, some companies had several EORI numbers, linked to different establishments via the SIRET. This situation could create administrative complexity, data inconsistencies, and risks during customs declarations. The reform aims to simplify and harmonize these practices across Europe.
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What changes with the EORI SIREN
One unique EORI number per company
From 2026 onwards, each company will have only one EORI number, directly associated with its SIREN (9 digits). This puts an end to the multiplication of identifiers by site or establishment and makes the administrative management of customs operations easier.
A new standardized format
The number format is also changing:
- Old format: FR + 14 digits (SIRET)
- New format: FR + 9 digits (SIREN)
This change strengthens the consistency of the data used by European customs administrations and improves the readability of records.
A process to anticipate via SOPRANO
Affected companies can verify or update their EORI number via the SOPRANO platform provided by the authorities. It is strongly recommended to check the compliance of your EORI as early as possible to avoid any future disruption to your flows.
What are the objectives of this reform?
This regulatory change pursues several clear objectives:
- Reduce administrative formalities for businesses,
- Strengthen European harmonisation of customs procedures,
- Improve the reliability of data used during inspections,
- Facilitate international trade flows.
In the long term, this simplification contributes to clearer operations and more secure management of import-export flows.
What Nexline recommends
At Nexline, we see this change as part of a broader trend toward standardization and enhanced security of customs procedures across Europe. Companies that anticipate these changes gain operational fluidity and significantly reduce their risks.
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The mandatory switch to the EORI SIREN on January 1, 2026 is a key regulatory step for all companies involved in international trade. Beyond compliance, this reform is an opportunity to simplify processes and strengthen the reliability of customs operations.
Anticipating today allows you to approach this transition with confidence and avoid any future blockages. In an increasingly demanding logistics environment, mastering customs obligations remains a decisive performance factor.


