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Frequently asked questions about NCTS

Here we answer the most frequently asked questions about the updated transit system, NCTS

Document code N830 can only be entered at NC level.

The exporter’s MRN number should be entered at HC level with document code N830. The maximum number of HCs for export followed by transit is 1,999.

This is a reduced data set that applies to transport by rail, air and sea. You need an authorisation to use a reduced data set. With this authorisation you do not need to provide the net mass. Apart from this, you should provide the same data as in a standard transit declaration.

This is shown in column D2 in Annex B TXK. Customers that do not have or use an authorisation (TRD) should indicate 0 in the ‘Reduced dataset indicator’ data element in 11 08 000 000.

The amendment of an unreleased declaration by message IE013 is not possible in Release 5.

Instead, please request to annul of the declaration containing incorrect information.

Currently, the TAD does not need to be printed. However, it is recommended that the TAD accompanies the shipment as the authorised consignee has no other way of obtaining information about the goods before requesting unloading permission.

Y-codes can be linked to specific commodity codes, but also have a general meaning.

The tariff indicates which Y-codes are applicable for each commodity code, but this is not clear from the tariff at only six-digit level. If it is known at the time of declaration that the commodity code (at 8-digit level) generates a Y-code, it must also be entered in the transit declaration.

Y-codes must be entered in accordance with the transit code list (CL380) presented by the European Commission.

NCTS Release 5 introduces the requirement to provide a reference to the authorisation(s) required to support the declaration. The authorisation number must be entered according to the new EU standard and can be up to 34 characters long. For example, an authorised consignor authorisation number could look like this: SEACRSE009251-2021-D-ABC12345.

  • Authorisations for authorised TIR consignees always begin as follows: SEACTSE009251...
  • Authorisations for authorised consignors for Union transit always begin as follows: SEACRSE009251...
  • Authorisations for authorised consignees for Union transit always begin as follows: SEACESE009251...

Special type of seal authorisations always begin as follows: SESSESE009251...
You will find all your transit simplification authorisations in the Customs Decisions System (CDS). Here you can also verify the authorisation numbers.

For the previous documents, the reference number and type must be indicated.

  • If the previous document is an export declaration, type N830 and the MRN number of the declaration are given as the reference number.
  • If the previous document is a customs warehouse declaration, type NMRN and the declaration's MRN number are given as the reference number.
  • If the goods are in a temporary storage facility, it is recommended that the type is given as N377 and that the MRN number of the declaration is given as the reference number.

If the previous document is an export declaration, there is no requirement for the transit declaration to contain references from customs warehouses or temporary storage.


Currently, when an IE044 contains discrepancies, an IE025 with release indicator 2 is sent. This means that the goods that have arrived and that you have unloaded may be handled further. Any missing goods will be investigated by the customs office of departure.

As there is a discrepancy noted in the unloading result (message IE044), the case needs to be handled and reviewed manually by the customs office of destination. In Sweden, this is handled by the clearance office in Malmö, SE000050. This office is normally open on weekdays from 8 a.m. to 4 p.m. Once the case has been handled, you will receive a response in the form of message IE025.

• XSD has been changed and published.
• The cooperation specification has been changed and published.
• The incident flag for IE007 has been removed.

No, once the transition to NCTS-P6 is complete, all transit declarations should be processed in NCTS-P6. Transit movements that were created in NCTS-P5 can be discharged in NCTS-P6.

The business test environment was opened for preliminary and final tests of NCTS-P6 on 5 September.

Please refer to DDNTA and rfc list 42. There will also be xsd modifications in the future.

No, the conditions in NCTS-P6 correspond to those in NCTS-P5. The information may be omitted in NCTS-P6 for transit within the EU, unless the transit is combined with exit summary declaration information (security set to “2”).

Swedish Customs has decided, at least initially and until further notice, not to implement messages IE117 and IE058 on our external domain. We will therefore not require operators to submit these messages.

Yes, the European Commission has published training materials.

NCTS-P6 Training Material to Traders pdf, 3.3 MB.

Note: Page 80 in the training material from the European Commission states that you should use CC015D; however, it should be CC015C.