DMS implementation postponed by Dutch Customs

The Dutch Customs has postponed the implementation of DMS. 

At a later stage the Dutch Customs will announce a new date for the migration of AGS to DMS.

Below you will find the migration process of AGS to DMS by the Dutch Customs:

From AGS and G(S)PA to DMS

Customs has started preparing for an important change in the declaration process. The AGS, Venue and G(S)PA declaration systems are being replaced by a new system: the Customs Declarations Management System (DMS).

The change is comprised of 5 components

  • The data requirements (dataset) of the declaration are being changed. Declarants who currently declare using AGS will have to make the declaration using DMS, such in accordance with the amended Annex B of the Union Customs Code.
  • DMS will feature a new functionality: the processing of inspection findings. In AGS 3.1, Customs always corrected the declaration. When using DMS 4.0, the declarant must itself apply the corrections after receiving a message about the inspection results from DMS. Goods are not released until the corrected declaration has been fully processed by Customs.
  • Ultimately by 1 January 2023, authorisation holders for Entry in the Declarant’s Records (EIDR, or IIAA in Dutch) will have to file additional declarations or send presentation messages using DMS 4.1. Because of this change, the declaration component of the Automated Periodic Declaration (GPA) and the Written Periodic Declaration (SPA) will come to lapse. In consultation with Customs, a postponement is possible until July 1st 2023 for GPA and SPA license holders.
  • EIDR authorisation holders will have to start using the so-called stock audit file to exchange the inspection information previously included in the GPA.
  • Venue is still available until December 31, 2022. After that, declarants must use DMS or DECO for e-commerce declarations.


The transition from AGS to DMS is implemented in stages. Check our planning.

How does this change affect me?

Do you currently only file declarations using AGS? In that case, you will be filing declarations using DMS 4.0, the successor to AGS 3.1. However, you will need to modify your business processes and declaration system according to the modified message specifications for DMS 4.0. You will also need to take account of the modified processing of inspection findings.

Do you currently file additional declarations using the GPA or SPA, or do you hold an IIAA authorisation for storage in a customs warehouse, inward processing, or temporary import? This means you will file your declarations using DMS 4.1. To this end, we developed 3 scenarios which we discussed in our webinar of 21 April 2021. We then asked companies which scenario best fits their business operations. To get an even more detailed picture, we asked these companies additional questions in March 2022.

The amended message specifications (MIG) for DMS 4.0 and 4.1 have now been published on the website of the National Helpdesk Dutch Customs, in the information section of the Dutch Customs Support Centre for Software Developers. Here you can also find more information about the test environment for companies (BTO) and the so-called validation test service (VTS).

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