guides20 January 2025

Registering for a GB EORI: The Application Walkthrough

No GB EORI, no ENS. Here's a clear walkthrough of how to apply, what HMRC expects, and where applications typically trip up.

Starting with the Basics

A GB EORI (Economic Operator Registration and Identification) number is the identifier HMRC issues to anyone trading goods across the Great Britain border. If you're lodging customs paperwork of any kind — S&S GB entry summary declarations included — you cannot proceed without one.

Do You Actually Need One?

A GB EORI is required when any of the following apply:

  • You move goods into Great Britain yourself or carry them on a client's behalf
  • You submit customs declarations, including ENS filings, to HMRC
  • You operate as a forwarder, carrier, or logistics business involved in UK import flows

Step-by-Step Application

  1. Sign in to the Government Gateway — if you don't have credentials, register for them first
  2. Open an EORI application through the HMRC customs portal
  3. Fill in the business details — trading name, registered address, and the activity you carry out
  4. Wait for issuance — HMRC typically returns a number within a handful of working days

Overseas applicants follow a slightly different track and may be asked for additional evidence of UK trading activity.

Where Applications Go Wrong

  • Format confusion — a valid GB EORI takes the form GB followed by a 12-digit string
  • VAT linkage — if the business already holds a UK VAT registration, the EORI is usually derived from that VAT number
  • Non-UK businesses — expect to supply supporting documentation showing a genuine UK commercial footprint

A Helping Hand

Our team at ENS Declaration Services regularly walks clients through the EORI process — from Government Gateway onboarding through to final submission. We'll flag what HMRC will want to see before you start, which tends to shave days off the approval cycle.

Drop us a line at ensdeclaration.com to get the ball rolling.