Belgium Postpones AES Amendment Procedure Rollout to October 2026
Belgium's Federal Finance Ministry (SPF Finances) has delayed the implementation of its new procedure for handling cancellation and amendment requests within the Automated Export System (AES) from September 7, 2026, to mid-October 2026. The postponement provides exporters and customs agents additional time to adapt their internal procedures.
Key takeaways
- Belgium's new AES amendment procedure, originally set for September 7, 2026, has been postponed to mid-October 2026.
- The core change involves shifting from email to MyMinfin for submitting supporting documentation.
- Operators are advised to use the delay to review internal procedures, identify responsible staff, and verify role-management authorizations.
Context
The procedural update marks a significant shift in how supporting documentation for AES amendment and cancellation requests is submitted. Instead of relying on email exchanges with customs authorities, operators will now transmit all such documentation through MyMinfin, the Belgian federal government's secure online portal. This change is distinct from Belgium's broader e-invoicing mandate and pertains specifically to customs export declaration workflows.
The postponement appears to be administrative in nature, with SPF Finances citing the need for additional preparation time. As of September 11, 2026, the original deadline has passed without the new procedure entering into force, meaning the existing workflow remains operative in the interim.
What's Changing
The core change introduced by the new procedure is the channel shift from email to MyMinfin for submitting supporting documentation. This transition represents a meaningful administrative change for exporters and customs agents who have historically relied on email-based exchanges. The new procedure aims to streamline the process and enhance security by centralizing document transmission within a dedicated government portal.
During the extended transition window, which runs until mid-October 2026, the current procedure remains fully in effect. Supporting documents continue to be exchanged via existing modalities with customs authorities.
Implications for Exporters and Customs Agents
SPF Finances has advised operators to use this additional delay productively. Key steps include:
- Reviewing and adapting internal procedures to align with the new MyMinfin-based workflow.
- Identifying staff responsible for managing AES amendment requests, ensuring they are prepared for the transition.
- Verifying role-management authorizations within the eGov platform to handle requests and upload supporting documents in MyMinfin.
Exporters and customs agents should prioritize these preparatory steps to ensure a smooth transition when the new procedure takes effect in mid-October 2026.
Outlook and What to Watch
The postponement provides a valuable window for operators to prepare for the upcoming changes. Key milestones and considerations include:
- Mid-October 2026: The new procedure is expected to take effect, requiring all supporting documentation for AES amendment and cancellation requests to be submitted through MyMinfin.
- Operational Readiness: Ensuring that identified staff have the necessary authorizations and are familiar with the MyMinfin portal.
- Continuous Monitoring: Keeping an eye on any further announcements or guidance from SPF Finances regarding the new procedure.
Frequently asked questions
- Why was the AES amendment procedure postponed?
- The postponement appears to be administrative in nature, with SPF Finances citing the need for additional preparation time.
- What is the significance of the channel shift to MyMinfin?
- The shift from email to MyMinfin represents a meaningful administrative transition, aiming to streamline the process and enhance security by centralizing document transmission within a dedicated government portal.
- What steps should operators take during the transition period?
- Operators should review and adapt internal procedures, identify staff responsible for managing AES amendment requests, and verify that personnel hold the necessary role-management authorizations within the eGov platform.
- What happens if operators are not ready by mid-October 2026?
- It is crucial for operators to be prepared by the new deadline. Failure to adapt may result in delays or complications in handling AES amendment and cancellation requests.
- Is this change related to Belgium's broader e-invoicing mandate?
- No, this development is distinct from Belgium's broader e-invoicing mandate and pertains specifically to the customs export declaration workflow.
