What Is a T1?
A T1 transit declaration is an electronic document that allows goods originating outside the EU — Turkey, for example — to move within the EU under customs supervision, with duties suspended, until they reach the destination customs. It is filed in the NCTS (New Computerised Transit System).
For a Turkey–Ireland shipment, T1 is opened at the EU entry point (Bulgaria or Romania) and closed at Irish customs. This means the cargo is not examined at every internal border — it is only processed in detail at the destination.
T1 vs T2
- T1: Non-Union goods that have not yet been released into free circulation
- T2: Union goods (or goods already in free circulation) that need to travel through a non-EU territory (e.g. Switzerland) between two EU states
Turkey–Ireland routings almost always use T1.
End-to-End Process
1. Calculating the Guarantee
Before the declaration is opened, a guarantee is calculated based on the cargo's value. Authorised consignors hold a comprehensive guarantee, so cash deposits are not required per shipment. Irlanda Transit organises this through its authorised guarantee partners.
2. Opening the Declaration in NCTS
Consignor, consignee, HS codes, weights, gross value, route and destination customs office are entered into NCTS. The system issues a Movement Reference Number (MRN).
3. MRN at Each Border
At every EU border crossing and transit office, the MRN is scanned. The system confirms the cargo is still on its approved route.
4. Discharge at Destination Customs
When the cargo arrives at Irish customs, the consignee's customs agent files a closure request. After any required examination, the declaration is discharged and the guarantee is released.
Time Limits
Every T1 carries a transit deadline — typically 5–10 days. If the cargo is not presented at the destination customs within this window, a "non-arrival" alert is generated and an inquiry begins. T1s that remain open block the guarantee and can trigger administrative penalties.
Common Mistakes
- Wrong destination customs code — a T1 cannot be discharged at a different office; an amendment is required
- HS code / guarantee mismatch — incorrect duty simulation leaves the guarantee under-cover
- Border crossing without MRN — the truck is stopped and additional paperwork demanded
How Irlanda Transit Handles This
We open T1 declarations through our authorised-consignor partners and our operations team monitors transit closure proactively, preventing MRN blocks and guarantee timeouts. Contact us.