- From 01/01/2024, customs declarations for deposit and import will have a new numbering system.
- The sequential number assigned to the declaration will no longer follow the previous format.
- The new numbering system will include numbers and letters, starting from the tenth declaration.
- The letters Ñ and O are not included in the numbering system.
- The MRN column shows the sequential number per enclosure, with the type of tax return highlighted in bold.
- In 2024, the import SAD and import declaration adapted to the UCC will have the same sequential number per enclosure.
Source: sede.agenciatributaria.gob.es
Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.