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Clara Edward
Clara Edward

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NCTS Transit: EORI, Guarantees and MRN Discharge Explained

What NCTS Requires Technically

Using NCTS in Ireland requires three things from a principal: a valid EORI number registered with Revenue, an approved customs guarantee covering the potential customs debt, and authorisation to use NCTS directly or through an authorised agent.

Guarantee Types

Guarantees come in three forms. A comprehensive guarantee covers all transit movements up to an approved ceiling. An individual guarantee covers a single movement. A guarantee waiver is available to authorised principals. Revenue calculates the reference amount from the principal's transit volumes.

The MRN Discharge Bottleneck

Every movement carries a Movement Reference Number, presented at intermediate offices and the office of destination to formally discharge the transit procedure. Until that discharge is confirmed, the guarantee remains locked. This is a recurring operational issue for Irish freight operators, since a delayed or lost discharge can leave guarantee capacity unavailable exactly when it's needed for new shipments.

The full technical and regulatory detail, alongside T1 and T2 distinctions, is covered in the NCTS transit Ireland guide.

Solving It With Visibility

Real-time MRN tracking and automated discharge status monitoring, as built into iNCTS, close the visibility gap that causes most of these delays.

Watch a demo of real-time MRN tracking.

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