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Information about the transition to G4-certificates

Publication date 20-08-2026, 15:27

Dear Sir/Madam,

An article about the implementation of the new G4-certificates has been published on the Logius website. This article highlights:

  • The transition to G4-certificates for Digipoort is mandatory and has a direct impact on your connections, so taking timely action will prevent disruptions in the message flow.
  • This article outlines technical requirements, deadlines, and practical steps to ensure a safe and correct transition.
  • By verifying now that your certificates, OIN registrations, and endpoints are in order, you will remain Digipoort-ready without interruption.

Kind Regards,

Service desk Support Digital Messaging

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The Netherlands Tax and Customs Administration/Central administrative processes
Ministry of Finance
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https://odb.belastingdienst.nl/en
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