New Trader Support Service: how to register to move goods to and from Northern Ireland

HM Revenue & Customs (HMRC) published guidance on 14 October 2026 on registering for the new version of the Trader Support Service (TSS). The service is for businesses that move goods between Great Britain (England, Scotland and Wales) and Northern Ireland.

What the service offers

The new version of TSS replaces the previous service of the same name. According to HMRC, it is free to use. Users get:

• an online system for making customs and safety and security declarations for movements between Great Britain and Northern Ireland,
• guidance materials, including regular webinars and email bulletins,
• a digital assistant and contact centre agents who help with declarations.

Who can register

A business can register if it moves goods between Great Britain and Northern Ireland and has an Economic Operators Registration and Identification (EORI) number. If a business is already registered for the new service, an additional user does not create a new account. They must ask the account administrator for an invitation, which arrives by email.

Businesses already registered with the previous TSS do not need to do anything. HMRC says they will be migrated to the new version on or before 20 October 2026.

What you need to register

Before registering, you need to have ready:

• personal details: name, email address, contact number and job title,
• business details: business name and email address (the business contact number and VAT registration number are optional),
• an EORI number. This may be an XI number, a number issued by an EU country, a parent organisation's number, or a number starting with GB.

You can also optionally provide, among other things, a simplified declarations procedure (SDP) number, an entry in declarant's record (EIDR) number, duty deferment account details, a customs warehouse authorisation number or an excise warehouse authorisation number. These are useful for those who plan to use such procedures.

Next steps

Once registered, you can get support with declarations and declare goods moving to or from Northern Ireland. Registration is done through the service's website, linked from the guidance on GOV.UK.

What this means for you

The change mainly affects people who run their own business, or work for a business, that moves goods between Great Britain and Northern Ireland. Private individuals do not need to do anything. If a business already uses TSS, it does not need to create a new account, but it is worth checking messages from the account administrator.