EU: Changes to the Frequency and Content of Customs Declarations (2026/519)

Key Points to Know

On March 10, 2026, the European Commission will amend, through Implementing Regulation (EU) 2026/519, the technical implementation standards of Regulation (EU) 2021/622 regarding the frequency of customs declarations and the required information. This regulatory development directly impacts customs declaration practices within the European Union.

Key Points

• The frequency for lodging customs declarations will change as of March 10, 2026.
• Implementing Regulation (EU) 2026/519 amends Annex III of Regulation (EU) 2021/622.
• Importers, exporters, and declarants will need to adapt their IT systems and internal procedures to align with the new documentation framework.

Background and Issues

Implementing Regulation (EU) 2021/622 established the technical standards for customs declarations within the European Union. The adoption of Regulation (EU) 2026/519 is aimed at harmonizing both the declaration frequency and the structure and detail of mandatory information required in declarations. This measure addresses the need to ensure seamless controls, the accuracy of collected data, and efficient management of goods flows. The amendment focuses primarily on Annex III of Regulation 2021/622, as referenced in the OJ and on EUR-Lex (OJ:L_202600519).

The industry notes that strengthening the technical framework through this regulation further structures the management of customs operations. Consistency in declared information is intended to limit discrepancies and reduce post-clearance dispute risks during audits.

Impact on the Profession

Declarants must update their automated declaration management systems to reflect the new filing frequency and the required information fields. Importers and exporters should educate their teams on the precise data collection that is now required by the harmonized EU form. Freight forwarders will need to review their workflows to ensure compliance from the point of initial data entry. Compliance officers must integrate these new requirements into their internal procedure manuals and ensure alignment with the updated regulatory timeline. Accurate classification of goods remains essential to adapt each customs declaration to the revised rules.

Next Steps

• Entry into force: March 10, 2026
• Document compliance review before this deadline
• Internal audits of declaration systems and digital tool adaptation
• Training and awareness on the new provisions of Regulation (EU) 2026/519

Dès le 10 mars 2026, la profession devra appliquer la nouvelle fréquence et fournir les informations requises dans les déclarations douanières. (From March 10, 2026, the industry will be required to apply the new frequency and provide the required information in customs declarations.)

Source: Implementing Regulation (EU) 2026/519, OJ, EUR-Lex