T1 Transit from UK to France — When You Need It and What It Costs

What is T1 and NCTS — the basics

T1 is the Common Transit document for goods that have not yet been cleared on EU territory (T1 status = non-Union goods). It allows a consignment to be moved through territories covered by the Common Transit Convention (CTC) without paying duty and VAT at each border — the customs debt is suspended and only arises in the destination country after the T1 is discharged and an import clearance is issued.

Despite Brexit, the United Kingdom remains a contracting party to the Common Transit Convention — which is why a Polish exporter or freight forwarder can open a T1 in the UK and move a shipment through France, Germany and Czech Republic all the way to Poland without redundant import clearances at every internal EU or FR/BE border.

T1 is handled through the electronic NCTS system (New Computerised Transit System) — since 2023 in the NCTS Phase 5 version. The system generates a unique MRN (Movement Reference Number), which acts as the "movement passport" — shown at borders, scanned by customs officers, discharged at the office of destination.

Key concepts:

• Office of Departure — the customs office where the T1 is opened (in our case a UK office, e.g. Dover, Felixstowe, Harwich, inland site).
• Office of Destination — the customs office in the destination country where the T1 is closed (e.g. Gdynia, Hamburg, Prague, Milan, and rarely Paris/Lyon if the cargo stays in France post-T1).
• Guarantee (transit guarantee) — financial security covering customs duty and VAT in case the cargo "disappears" in transit. Usually issued by the customs agent from their own comprehensive guarantee (CGU).
• Seals — numbered seals applied to the truck/container; only broken at the office of destination.

When T1 is ABSOLUTELY required on the UK → FR → (PL/DE/CZ/IT) route

These are the scenarios where you cannot proceed without a T1:

• The cargo passes through France as a transit country, not a destination. The driver leaves the UK via Dover / Eurotunnel to Calais / Coquelles, then takes A1/A4 motorway through Belgium/Luxembourg to Germany, and further to Poland, Czech Republic or Italy. France is just a "corridor".
• There is no import clearance in France, because the goods do not stay there — no French VAT to pay, no French EORI for the consignee. French customs will not release the truck for onward transport without a T1 document.
• Without T1 = risk of being stopped at the FR/DE or FR/BE border. Since Brexit, French customs (DGDDI) have been fairly efficient at detecting UK-origin trucks without transit paperwork — a typical scenario is a stop in Metz, Strasbourg or on the A4, redirection of the cargo to the nearest customs office, and forced clearance with a 24-72 h delay plus a fine.
• Non-Union goods — anything without T2 / T2L status (proof of Union origin). For imports from the UK this is T1 by default.
• Cargo value above EUR 1,000 and commercial shipping — then simplified procedures (e.g. ATA for samples or commercial documents) are not enough.
• Import to PL under Regime 42 — T1 guides the container/truck from Felixstowe or Dover to the Polish consignee, who then performs clearance and applies VAT exemption under intra-Community supply (WDT). See the broader T1 Transit guide.

When T1 is NOT required

There are situations where a T1 is an unnecessary cost:

• The cargo stays in France (e.g. delivery to a consignee in Paris, Lille, Lyon). Then a standard UK export + FR import is enough — import clearance on the French side by a French agent in the DELTA-G / Single Window system.
• EU goods returning to the EU — T2L or T2LF is possible instead of T1 (different status).
• Personal shipment of transfer of residence belongings — different procedures. See transfer of residence clearance.
• Cargo with an ATA Carnet — trade fairs, samples, photographic equipment. ATA replaces T1 for temporarily exported goods that will return.
• Value below thresholds for non-commercial shipments (rules change over time — always consult an agent).

T1 opening process in the UK — step by step

Here is the full process at Easy Clearance:

1. Order + documents (0-10 min). The client (exporter, forwarder, freight forwarder) sends us: commercial invoice, packing list, CMR, UK exporter's EORI, consignee's EORI in the destination country, HS code of the goods, gross/net weight, value in GBP or EUR, truck/trailer registration, driver's name.
2. Data check and guarantee calculation (10-20 min). We verify EORI, tariff classification (HS 6-8 digits), customs value. We calculate the required security = duty + potential VAT, to properly block the comprehensive guarantee.
3. Entering NCTS — issuing T1 (20-40 min). The customs agent enters data into HMRC NCTS: office of departure (UK), office of destination (PL/DE/CZ/IT), route countries, seals, GRN (Guarantee Reference Number), vehicle identification. The system generates the MRN.
4. TAD (Transit Accompanying Document) + barcode to the driver (40-50 min). We send the driver a PDF with the MRN barcode and (if needed) a GMR into GVMS for departure via Dover/Eurotunnel.
5. Presentation at the UK border (50-60 min). The driver presents the TAD at the UK point of exit — automatic scanning in the system, seals closed, truck released to ferry/tunnel.
6. Transit through FR → BE/LU → DE → PL/CZ/IT. MRN is typically valid for 7 days (can be extended). If checked en route, the driver shows the TAD.
7. Closing at the office of destination. The customs partner in the destination country presents the T1 at the local office, breaks the seals, confirms "discharge" in NCTS. T1 closed < 4 h from arrival.

In the optimal scenario — complete documents, no inspection, valid EORI — the driver can roll 15-30 minutes after documents are submitted. Operational standard: 30-60 minutes to open.

Transit guarantee — who provides it and what it costs

Every T1 requires financial security. HMRC recognises three types in the UK:

• Individual Guarantee — one-off, paid by the sender/forwarder. Expensive (1-2% of the goods' value, minimum 50-100 £) and requires a payment/refund process — rarely used.
• Comprehensive Guarantee (CGU) — permanent, reusable, issued by the customs agent / broker. Covers multiple movements up to a limit (e.g. 500,000 £).
• Guarantee Waiver — a guarantee waiver (for AEO with very high trust level, rarely available to new clients).

At Easy Clearance we use our own CGU, so the client does not have to pay a deposit or apply for their own HMRC guarantee. The fee for using our guarantee is included in the T1 package price (range 200-500 £ total).

Closing the T1 — where and by whom

This is the key point clients often confuse: a T1 opened in the UK cannot be closed in the UK. It must be closed at the customs office of the destination country by a local customs agency authorised to represent the consignee in NCTS.

Why do you need a local agent? Because only an EU resident with an EORI number in that country can access local NCTS, present the goods at the office, perform the discharge and (if needed) immediately issue the import clearance and Regime 42 procedure for onward intra-Community supply.

Easy Clearance "T1 UK → PL" package — 2 agencies in one price

Our standard offer for Polish exporters and freight forwarders:

• T1 opening in the UK by Easy Clearance (office of departure: Dover / Felixstowe / Harwich / inland)
• Comprehensive Guarantee (CGU) issued from our policy — the client pays no deposit
• TAD + MRN + barcode delivered to the driver in 30-60 minutes
• GMR (Goods Movement Reference) for Dover/Eurotunnel if exiting the UK that way
• Partner customs agency in the closing country (PL / DE / FR / CZ / IT) — performs T1 discharge < 4 h from arrival
• Email/WhatsApp coordination between UK and EU partner — the client has a single point of contact

The ranges shown are indicative — an accurate quote will be provided after documents are submitted (invoice, CMR, destination country, goods type, value). The T1 price covers two customs agencies: UK opening + EU closing. The final amount depends on the closing country, the number of tariff items and the guarantee value.

Common mistakes on UK → EU T1 runs

• Failure to close the T1 on time → customs debt. If the MRN is not discharged at the office of destination within 7 days (or other set limit), HMRC / DGDDI treats the goods as "missing" and imposes duty + VAT on the guarantor (the customs agent who issued the CGU). Consequences: guarantee blocked, investigation, potential penalties up to several thousand £.
• Wrong office of destination. Entering the wrong destination office (e.g. Paris instead of Gdynia) — the T1 will not be closed where the truck arrived, and you have to perform rectification in NCTS, which takes 24-72 h.
• Incorrect guarantee (too low). If the duty/VAT calculation shows e.g. 4,000 £ but the blocked guarantee is 2,000 £ — HMRC rejects the T1 and the security must be topped up.
• Wrong HS code. Too low a tariff code → border check, rectification request, delay.
• Missing or broken seals in transit. Automatic red flag for customs and a physical inspection.
• Driver doesn't know where to close the T1. If the consignee does not present the goods at the office of destination within 1-2 days of arrival — customs debt starts. Solution: coordination with the customs partner before departure, not after.
• No EU consignee EORI. The consignee must have an active EORI in the destination country — without it, no discharge and import clearance can be processed.

Timeline — T1 UK → FR → PL

Realistic schedule for an urgent cargo (Birmingham → Poznan via Dover, Calais and Germany):

Summary: UK T1 opening = 30-60 min, transit UK → FR → PL = 24-36 h, closing < 4 h after arrival. See also Dover vs Felixstowe — which port to choose.

FAQ — T1 from UK to France and beyond

Do I need a T1 when shipping only from UK to France?

No — if the cargo stays in France (e.g. consignee in Lille, Paris, Lyon), a standard UK export on our side and FR import on the French side (handled by a French agent in DELTA-G / Single Window) is enough. A T1 is only needed when France is a transit country and the cargo continues to PL, DE, CZ, IT.

How much does a T1 from UK to Poland cost?

The T1 UK → PL package range is from 250 £ to 450 £. The price covers two customs agencies (Easy Clearance in the UK + customs partner in PL), CGU guarantee, TAD, MRN and discharge at the Polish customs office. UK export clearance (45-120 £) and any GMR (15-30 £) are priced separately. The ranges shown are indicative — an accurate quote will be provided after documents are submitted.

Who closes the T1 in France or Poland?

A T1 opened in the UK must be closed at the customs office of the destination country by a local customs agency. Easy Clearance is a UK broker — we open the T1 on the British side. Closing is handled by our customs partner in PL, FR, DE, CZ or IT (depending on destination). In the package the client has a single point of contact — we coordinate the full flow.

What happens if the driver fails to close the T1 on time?

If the MRN is not discharged at the office of destination within 7 days (or another NCTS-agreed deadline), HMRC treats the goods as "missing" from transit and imposes a customs debt (duty + VAT + potential penalties) on the guarantor. In practice this charges our comprehensive guarantee — which is why we actively monitor every T1 closing and contact the driver and EU partner if discharge is delayed.

What is the transit guarantee and do I have to pay it upfront?

The transit guarantee is financial security covering duty + VAT in case a T1 is not closed. At Easy Clearance we use our own Comprehensive Guarantee (CGU) registered with HMRC — the client pays no deposit. The fee for using our guarantee is already included in the T1 package price (200-500 £).

How long does T1 opening take in the UK?

Typically 30-60 minutes from receiving complete documents (invoice, CMR, EORI, HS code, vehicle registration). In urgent cases — with all data entered in advance — the driver can roll in 15 minutes. Delays past 60 minutes occur when the consignee EORI is missing, the HS code is wrong, or HMRC requires a customs check (rare for T1).

Does T1 work alongside an ATA Carnet?

No — these are two different instruments. ATA Carnet is a temporary export/import document (trade fairs, samples, photographic equipment, musical instruments) and replaces T1 for those purposes. T1 is for commercial transit of non-Union goods that go to a final consignee (import). For commercial cargo heading for sale you use T1, not ATA.

Can I use T1 for sanitary (POAO/SPS) loads?

Yes — T1 works regardless of whether the cargo is subject to sanitary controls (SPS, POAO — meat, dairy, plant products). The difference is that additionally presentation at a BCP (Border Control Post) on the EU side is required — for France this is BCP Dunkirk/Calais. We coordinate BCP pre-notification with the EU partner if the goods category requires it.

What current regulations mean

The Common Transit Convention and NCTS Phase 5 apply to the UK and all EU countries. HMRC, DGDDI (France), the National Revenue Administration (Poland) and other customs authorities enforce the same rules for T1 discharge and charging the guarantor for failed discharge. Always verify current HMRC guidance and NCTS communications. Information in this article reflects the regulatory status as of April 2026.

Official sources

• GOV.UK: Moving goods under the Common Transit Convention — HMRC, 2026
• GOV.UK: NCTS technical specifications — HMRC, 2026
• European Commission: Customs Transit — DG TAXUD, 2026
• DGDDI — Douane française — 2026
• National Revenue Administration — customs — 2026