Knowledge / June 2, 2026

Apply for an MRN Number? What the MRN Really Is

You do not apply for an MRN — it is generated automatically in the ATLAS system. We explain the structure, origin and purpose of the customs MRN number.

Many exporters search for where to “apply” for an MRN number. The short answer: you don’t. Unlike the EORI number, which you register once with customs, the MRN is not applied for — it is generated automatically, the moment the ATLAS system accepts your export declaration. Once you grasp that, you’ve understood the key point.

What is the MRN number?

MRN stands for Movement Reference Number. It is the unique identifier under which a single export declaration is tracked in the European customs system. Every accepted declaration receives exactly one MRN, and that number lets the procedure be followed from declaration all the way to the goods physically leaving the EU.

So the MRN is not a permanent attribute of your company — unlike the EORI, which is valid for years. It belongs to one specific shipment and one specific declaration.

”Apply for an MRN” — the misconception

Searches for “apply for MRN” or “MRN number customs” usually stem from an understandable expectation: anyone exporting for the first time knows the EORI application and assumes a similar step for the MRN. There isn’t one.

The MRN is issued by the customs IT system (ATLAS — Germany’s automated customs clearance system) as soon as your electronic export declaration has been formally accepted. There is no form, no waiting period of days, and no separate fee. You submit the export declaration — and the MRN comes back as the result.

When and how is the MRN created?

The process in brief:

1. Submit the declaration: You (or your customs service provider) file the export declaration electronically via ATLAS.
2. Plausibility check: The system automatically checks the data for completeness and consistency.
3. Acceptance and MRN assignment: If the declaration is accepted, ATLAS generates the MRN and returns it immediately.
4. Issue of the EAD: Based on the accepted declaration, the Export Accompanying Document (EAD/ABD) is created — the MRN appears on it, including as a barcode.

We describe the full path from order to exit confirmation in our guide Export Declaration Step by Step.

Structure of the MRN

The MRN is 18 characters long and follows a fixed pattern:

• Positions 1–2: The last two digits of the year in which the declaration was accepted (e.g. 26 for 2026).
• Positions 3–4: The country code of the accepting customs office (e.g. DE for Germany, alongside FR, BE, PT …).
• Positions 5–8: These digits identify the responsible export customs office at which the MRN was created and the export declaration was opened.
• Positions 9–18: Check digits by which the export declaration (ABD) can be identified.

A German MRN therefore typically begins with a combination like 26DEXXXX (for the customs office). From this pattern you can tell at a glance whether a number could even be a valid MRN.

Where do I find the MRN?

The MRN appears on the Export Accompanying Document — in plain text and additionally as a barcode, so the customs office of exit can read it by machine. If your provider handles the declaration for you, you receive the MRN together with the EAD. Keep this number to hand: it is your key to every further step of the shipment and accompanies it all the way to the EU’s outer border.

What is the MRN used for?

The MRN accompanies the shipment on its way out of the EU:

• Presentation at the customs office of exit: When leaving the EU, the shipment is matched to the open export procedure via the MRN.
• Status tracking: The MRN lets you check whether the procedure is still open or the goods have already left the EU.
• Exit confirmation: Once exit is confirmed, the exit confirmation (Ausgangsvermerk) is generated — your proof for the VAT-exempt export delivery. This too references the MRN.

Without a correct MRN match at exit, the procedure stays open — and the fiscally important exit confirmation is missing.

Common problems

No MRN received: If you didn’t receive an MRN, the declaration was not accepted — usually because of incomplete or inconsistent data. In that case the problem isn’t the MRN but the declaration itself.

Procedure stays open: If the shipment is not properly matched to the MRN at the border, the procedure doesn’t close and the exit confirmation never arrives. In such cases an alternative proof of exit can be created afterwards.

MRN confused with other numbers: The MRN is not the EORI and not the commodity code. It belongs exclusively to a single declaration procedure.

You don’t have to deal with the MRN mechanism yourself: in our export declaration service we handle the filing in the ATLAS system, deliver the EAD and MRN, and keep an eye on the procedure through to the exit confirmation.