Guides / Poland to Northern Ireland · Updated 30 September 2026

Shipping goods from Poland to Northern Ireland: VAT, XI numbers and EORI

Goods sent from Poland or elsewhere in the EU to Northern Ireland follow EU VAT rules, not the import rules that apply in Great Britain. Here is how acquisition VAT, XI numbers and EORI work on this route.

This guide is also available in Polish.

Most people assume that anything leaving Poland for the UK is an "export to Britain" with a full customs process at the other end. For Northern Ireland that assumption is wrong on the VAT side. Under the Northern Ireland Protocol, now part of the Windsor Framework arrangements, Northern Ireland stays aligned with EU VAT rules for goods.

This guide is for Polish and other EU suppliers selling to Northern Ireland businesses, and for Northern Ireland buyers ordering from the EU. It explains the VAT mechanics, the identifiers you will see on invoices, what happens to EORI numbers, and why the "green lane" you may have read about does not apply to your route.

Why EU to Northern Ireland is different from EU to Great Britain

HMRC's notice on movements of goods between Northern Ireland and the EU states that, under the Protocol, Northern Ireland aligns with EU VAT rules for the movement of goods, with the EU Principal VAT Directive (2006/112) as the primary law and UK legislation implementing it for Northern Ireland.

Two definitions in that notice make the practical difference clear:

• The term "import" is used only for goods coming into Northern Ireland from countries outside the EU.
• The term "export" is used only for goods leaving Northern Ireland for countries outside the EU.

So a consignment from Poland to Northern Ireland is not an "import" for VAT purposes. HMRC also states that VAT on goods traded with the EU is not collected at the frontier; how it is accounted for depends largely on whether the customer is VAT-registered in the country of arrival.

Contrast that with a shipment from Poland to England, Scotland or Wales. Great Britain is outside the EU VAT area, so goods arriving there are imports, with a customs declaration in CDS and import VAT to account for. If you are planning that route, our guide to the CDS import declaration covers the Great Britain side.

The acquisition model: who pays VAT

For business-to-business sales, the VAT is normally accounted for by the buyer in Northern Ireland, not collected at the border. HMRC defines an acquisition in Northern Ireland as a movement of goods where all three of these apply:

• the goods move from an EU member state to Northern Ireland;
• they are received by a VAT-registered business;
• the supplier is registered for VAT in the EU member state of departure.

Where that is the case, the recipient must account for VAT on the goods acquired into Northern Ireland. According to HMRC, the tax goes on the VAT return for the period in which the tax point falls, and it can be treated as input tax on the same return, subject to the normal deduction rules. Acquisitions are charged at the same rate as domestic supplies of identical goods in the UK.

In practice, for a Northern Ireland business that can fully recover VAT, acquisition VAT is usually a reporting exercise rather than a cash cost, but the entries still have to be right.

XI VAT numbers: the identifier that makes it work

A Northern Ireland business trading goods with the EU uses its UK VAT number with the prefix "XI", the identifier for Northern Ireland, instead of "GB". HMRC's invoicing rules for these supplies refer to showing "XI" as a prefix to the VAT registration number, together with the customer's EU VAT number including its country prefix.

For a Polish supplier this matters for two reasons:

1. Your customer should give you an XI-prefixed number. HMRC tells Northern Ireland buyers that they account for acquisition tax whenever they give an EU supplier their UK VAT number identifying them as trading under the Protocol. If they do not provide it, HMRC notes that EU suppliers will have to charge them VAT on their supplies.
2. The number can be checked. HMRC explains that EU member states share arrangements for verifying VAT numbers, and the UK takes part in respect of Northern Ireland. Businesses in EU member states can therefore verify XI numbers in the same way as other EU VAT numbers.

Transfers of your own stock

If you move your own goods from Poland to your own premises or a warehouse in Northern Ireland, with no sale to a third party, HMRC treats movements between Northern Ireland and EU member states within the same legal entity as supplies. The notice's reporting table shows transfers from EU member states to Northern Ireland going through the VAT return as acquisition VAT, with input tax under the normal rules.

EORI numbers on the EU to Northern Ireland route

Traders often assume that anything touching Northern Ireland needs an EORI number starting with XI. GOV.UK says otherwise. You need an XI EORI to move goods into Northern Ireland from Great Britain, or from Northern Ireland to a non-EU country. You do not need one if you only move goods on the island of Ireland or between Northern Ireland and an EU country.

For a Polish exporter sending goods only to Northern Ireland, an XI EORI is therefore not required by that rule. If the same business also sends goods to Great Britain, or from Great Britain onwards to Northern Ireland, the answer changes, because those movements are outside the EU arrangements.

Where the "green lane" fits, and where it does not

Much of what you read about the Windsor Framework concerns the green lane and the UK Internal Market Scheme (UKIMS). These are simplifications for goods coming into Northern Ireland from Great Britain. GOV.UK describes UKIMS authorisation as giving access to simplified processes, under which authorised businesses submit Internal Market Movement Information, a simplified dataset based on commercial information, instead of a full declaration. It also states that "not at risk" goods will not be charged duty when entering Northern Ireland from free circulation in Great Britain.

None of that is relevant to a lorry or parcel going straight from Poland to Northern Ireland. The green lane answers a Great Britain to Northern Ireland question. If your goods go from Poland to a warehouse in England first and are then sent on to Belfast, you have two separate movements: an import into Great Britain, followed by a Great Britain to Northern Ireland movement where UKIMS and the green lane may apply.

Practical checklist before the first shipment

• Get the customer's XI-prefixed VAT number in writing and verify it before invoicing.
• Show both VAT numbers, with country prefixes, on the invoice.
• Keep transport evidence showing the goods left Poland and arrived in Northern Ireland.
• Check the route: a direct EU to Northern Ireland journey is not the same as a stop in Great Britain.
• If you also sell to Great Britain, plan that flow separately. It is a customs import, and whether you need a broker is covered in do you need a customs broker.

Parcels and e-commerce raise their own questions, especially when the goods start in Great Britain rather than the EU. For that side of the picture, see this guide to Windsor Framework parcels from Britain, which explains the lanes for B2B and B2C consignments.

Related guides

• Statement on origin: claiming zero duty under the UK–EU TCA

• UK VAT on low-value imports: the £135 rules explained

• UK Timber Regulations: importing wood products from Poland and the EU

Sources

• VAT on movements of goods between Northern Ireland and the EU (GOV.UK)
• Get an EORI number: if you move goods to or from Northern Ireland (GOV.UK)
• Apply for authorisation for the UK Internal Market Scheme (GOV.UK)

General information, not legal, tax or customs advice. Rules change; confirm current requirements on gov.uk or with a registered agent before you ship.