Exporter: Final rules for export declarations to be deployed on 15 December 2025

For the time being, rules set by the EU for a transition period have been applied in export message declarations. The transition period ends on 15 December 2025 at 01.59, after which time the final rules will be applied in export declarations. Therefore, there will be changes also in declaring. Software developers are required to update their applications to comply with the final rules. Ordinary export declarants will not need to do anything; however, you should note that there will be changes to declaring.

Export declarations cannot be submitted during the evening of deployment

Submitting export declarations is not allowed on 15 December 2025 from 00.00 to 01.59. We recommend, however, that no export declarations should be submitted after 21.00 on 14 December 2025 in order to avoid problems in generating response notifications. This concerns both message declarants and exporters who submit declarations in the Customs Clearance Service.

If an export declaration that you submitted has not been approved by 23.59 on 14 December 2025, you need to submit a new declaration after the interruption of use ends.

Old declaration templates or drafts can no longer be used in the Customs Clearance Service. You can no longer copy old declarations submitted before 00.00 on 15 December 2025 as templates for new declarations.

What will change in submitting declarations?

• Old declaration templates or drafts can no longer be used in the Customs Clearance Service. You can no longer copy old declarations submitted before 00.00 on 15 December 2025 as templates for new declarations.
• The most significant change in export declarations is that, after the interruption of use ends, commercial documents such as commercial N380 invoices or N325 export pro forma invoices are declared in the details of the consignment which is to undergo customs clearance. This means a return to the old model previously used in export declarations in the ELEX system.
• Gross mass will be an obligatory piece of data both for goods items and consignments to be cleared.
• In the future, certain additional information codes must be declared in the details of the consignment that is to undergo customs clearance:
  • 00100 – Application for authorisation for the use of a special procedure other than transit based on the customs declaration
  • 00700 – Discharge of inward processing / ”IP” and the relevant authorisation number or INF number
  • 00800 – Discharge of inward processing (specific commercial policy measures) / “IP CPM”
  • 00900 – Discharge of temporary admission / “TA” and the relevant authorisation number
  • 30500 – Export of goods from the Union customs territory under a single transport contract.

Software developers must update their applications

Export software developers (software suppliers and declarants who create their own software) must note that the transition period rules will expire.

The rules used for the transition period which will go out of use begin with B, E or NB. An exception to this are rules B2101 and B2400 which will be final rules.

In October, Customs will send a separate message to software developers and message exchange service providers when the testing of export declarations to be submitted according to the final rules begins. The planned time for testing is at the end of November, and there will be three weeks of testing. If an export declarant sends messages from their own server, there is no need to test export declarations to be submitted according to the final rules.

More information

The final MIGs for export will be deployed on 15 December 2025
yritysneuvonta@tulli.fi