For UK businesses & EU traders

EORI numbers in the UK

Since Brexit the UK runs its own EORI system: GB numbers issued by HMRC, plus XI numbers for Northern Ireland. Who needs which number, how to apply and how to check one.

Cost

Free

Time

Usually instant – 5 working days

Where

HMRC via GOV.UK

EORI after Brexit: two systems side by side

Until 2020 a UK EORI number was an EU EORI number. Since Brexit the UK issues its own numbers through HMRC, separate from the EU system. In practice that means: a business moving goods between Great Britain and any other country — the EU included — needs a GB EORI number, and an EU business importing UK goods still needs its own EU EORI number. One number no longer covers both sides of the Channel.

What a UK EORI number looks like

GB followed by 12 digits. For VAT-registered businesses the first 9 digits are usually the VAT registration number, followed by a 3-digit suffix:

GB123456789000
Country code (2 letters)Identifier (12 digits)
Example — a GB EORI number. For VAT-registered businesses it usually embeds the VAT number.

GB numbers are not in the EU database

Our EU checker validates EU numbers and Northern Ireland XI numbers. Numbers starting with GB live in HMRC's own register and are checked with HMRC's EORI checker on GOV.UK.

GB or XI — which one do you need?

GB EORIXI EORI
ForMoving goods between Great Britain and other countriesMoving goods to or from Northern Ireland
Issued byHMRCHMRC (you need a GB EORI first)
FormatGB + 12 digitsXI + 12 digits
Checkable in the EU database?No — use HMRC's checkerYes — XI numbers are part of the EU system

Under the Windsor Framework, Northern Ireland stays aligned with EU customs rules — hence the separate XI numbers.

How to apply for a GB EORI number

  1. 1

    Check whether you already have one

    HMRC auto-issued GB EORI numbers to many VAT-registered businesses around Brexit. Check old correspondence from HMRC before applying again.

  2. 2

    Set up a Government Gateway account

    The application runs through GOV.UK, so you need a Government Gateway user ID for your business (or yourself as a sole trader).

  3. 3

    Apply on GOV.UK

    The online form takes 5–10 minutes. Have your VAT number, Unique Taxpayer Reference (UTR), business start date and National Insurance number (sole traders) at hand.

  4. 4

    Receive your GB EORI number

    You usually get the number straight away; in some cases it takes up to 5 working days. There is no fee.

  5. 5

    Trading with Northern Ireland? Add an XI EORI

    If you move goods to or from Northern Ireland, apply for an XI EORI number as well — you need a GB number first.

For EU businesses trading with the UK

Your EU EORI number keeps working for the EU side of the movement — the import or export declaration lodged in the EU. You only need a GB number if you lodge declarations in the UK yourself, for example when delivering DDP to British customers. Check your EU number anytime with our free checker.

Got an EU or XI number?

Validate it against the official EU database in seconds.

Check it now
Read the complete EORI guide

Frequently asked questions

Do I need an EORI number to trade with the UK?

Yes. Since Brexit, a business moving goods between Great Britain and any other country needs a GB EORI number, and the EU side of the movement requires an EU EORI number. One number no longer covers both.

What does a UK EORI number look like?

GB followed by 12 digits. For VAT-registered businesses the first 9 digits are usually the VAT registration number, followed by a 3-digit suffix.

Can I check a GB EORI number in the EU database?

No — GB numbers left the EU system with Brexit and are validated with HMRC's own checker on GOV.UK. Northern Ireland XI numbers remain checkable in the EU database.

What is an XI EORI number?

The number for moving goods to or from Northern Ireland, which stays aligned with EU customs rules under the Windsor Framework. It is issued by HMRC; you need a GB EORI number first.

How long does it take to get a GB EORI number?

Usually you receive it immediately after applying online; in some cases it takes up to 5 working days. The application is free.

Start with the basics?

What is an EORI number?

Meaning, structure and purpose — explained in plain English.