T1 transit vs direct export — when T1 is the right choice

Are you exporting from Poland to the UK and unsure whether to choose T1 transit or a direct export declaration? This is one of the most common operational decisions in PL–UK transport, with real consequences for the clearance process, cashflow management and the risk of goods being held up. T1 involves higher administrative requirements, but in many scenarios it is the only correct choice — or even the only legally permissible one. This article explains the factors that should shape your decision.

What is T1 transit — HMRC definition

T1 transit (the transit procedure) is a customs procedure governed by the Common Transit Convention (CTC), of which the United Kingdom has been a party since 1 January 2021 (following Brexit). The T1 procedure allows goods from outside the EU customs territory to be transported through one or more countries without paying duty and VAT at each border — instead a customs guarantee (security for potential duties) is applied, which is released once transit has been correctly discharged.

Legal basis: Common Transit Convention of 20 May 1987 and HMRC implementing provisions (Notice 700/58). Electronic system: NCTS (New Computerised Transit System).

Direct export is a procedure in which goods are cleared for export in the country of departure (Poland) and imported in the destination country (UK) on the basis of separate declarations — EX in Poland and IM in the UK. It does not require a customs guarantee or the NCTS system, but every crossing of a customs border requires a separate clearance.

Factors influencing the choice of T1 vs direct export

Factor 1: Route complexity — number of customs territories

This is the most important factor. If goods pass through more than one customs territory on their journey from Poland to the destination (e.g. a route through countries outside the EU, or a shipment transiting through the UK to a further country), T1 allows the entire route to be covered under a single MRN. Without T1, each crossing of a customs border requires a separate pair of declarations (export + import), which significantly increases the number of documents, clearance costs and the risk of delays.

A simple PL → UK route (Poland to the UK directly, with no intermediate customs points) does not require T1 — direct export is sufficient. A multi-leg route or one with intermediate storage in another customs territory — T1 is the right choice.

Factor 2: Destination — customs warehouse in the UK

This is an absolute factor — T1 is in this case legally required. A customs warehouse (bonded warehouse, ETSF, HMRC customs warehouse) cannot accept goods from abroad without a transit procedure. This follows from HMRC rules and is a requirement that cannot be assessed on a cost–benefit basis. If goods are going to a customs warehouse in the UK — T1 is the only option.

Factor 3: Goods type and special requirements

Some goods categories are subject to special requirements when crossing the UK border. Goods covered by the TIR procedure (Transports Internationaux Routiers) may require T1 or a TIR Carnet when transported through countries outside the CTC. Goods with a sensitive customs status (e.g. non-EU goods stored or processed in Poland before onward transport to the UK) may also require T1 to maintain the correct customs status throughout the route.

Factor 4: Time sensitivity

T1 requires the document to be issued before the transport departs and closed at the destination office within the specified deadline. Issuing a T1 typically takes a few hours from receipt of complete documents. Direct export is simpler from this point of view — the export declaration in Poland is less document-intensive. For very urgent shipments the authorised consignor status (a designation granted by HMRC on application from a customs agent or importer) significantly reduces the time to issue a T1. An agent with this status can issue a T1 without a visit to the customs office.

Factor 5: Customs guarantee requirement (statutory)

T1 requires a customs guarantee (Comprehensive Guarantee — CGU) covering potential customs liabilities on the transit route. This is a statutory requirement deriving from the Common Transit Convention. The guarantee is returned in full upon correct discharge of transit. A company that does not hold its own CGU can use the customs agent's guarantee — the agent bears the liability and makes their guarantee limit available. Direct export does not require a customs guarantee.

Factor 6: Authorised consignor / authorised consignee status

Authorised consignor (sender) and authorised consignee (recipient) status granted by HMRC allows the T1 procedure to be opened and closed without visiting the customs office. This is one of the factors affecting the operational efficiency of T1. A customs agent holding authorised consignor status can handle T1 more quickly and efficiently than without this status. This status is not required for direct export.

Decision tree — 4 questions

Answer the questions in sequence — at the first YES you have your answer. Only if all answers are NO should you choose direct export.

When T1 is the right choice — scenario summary

Based on the above factors, the scenarios in which T1 is the right or required choice can be summarised as follows:

• Multi-leg route — goods pass through more than one customs territory (e.g. PL → UK → DE or PL → Switzerland → UK). T1 is the natural and operationally efficient solution here.
• Delivery to a UK customs warehouse — legal HMRC requirement. Without T1 the goods will be stopped and duties payable at the border.
• High shipment value with cashflow sensitivity — if the company is not VAT-registered in the UK and cannot use PVA, T1 suspends UK VAT during transit, protecting cashflow.
• Uncertain or multi-stage route — if the route may change (diversion, intermediate storage, change of recipient), T1 gives operational flexibility without requiring re-clearance.

Direct export is the right choice for simple PL → UK shipments to a single final recipient, where the company holds UK VAT registration and can use PVA, and the route is certain and direct.

When both procedures are needed

There is a scenario in which a single lorry handles T1 and direct export simultaneously — and this is entirely lawful. This occurs with so-called mixed loads: part of the trailer's cargo goes to the final customer in the UK (direct export) and part goes on to a customs warehouse or a third country (T1).

Another case: goods enter the UK under temporary admission (e.g. for a trade fair, exhibition or testing) and are re-exported after use. In this case temporary admission may require T1 on entry, while the re-export is a separate export declaration.

Particular attention should be given to the CFSP/EIDR procedure (Customs Freight Simplified Procedures / Entry in Declarant's Records). Under CFSP it is possible to clear goods in a simplified way without a full declaration at the border, with a subsequent "after-the-fact" settlement. In combination with T1 or direct export this gives considerable operational flexibility — but requires HMRC authorisation. Easy Clearance advises on which combination of procedures is optimal for the specific case.