New customs registration rules? We’ve built a practical playbook to help.

Following the publication of HMGoG’s guidance on NIF and EORI registration requirements, the GFSB has produced a practical step-by-step playbook to help businesses navigate the process as clearly and confidently as possible.

Over recent weeks, many members have contacted us with questions around whether they need a NIF or EORI number, what the process involves, and whether obtaining these registrations could create Spanish tax obligations. This guide has been designed to simplify that conversation.

The playbook explains:

• Who actually needs to apply
• When businesses may be exempt
• The difference between NIF and EORI numbers
• What documents are required
• How the application process works
• Why HMGoG says these registrations do not create Spanish tax obligations

It also includes practical recommendations, submission routes, FAQs and links to the official forms and guidance.

The aim is to give businesses a clear, practical starting point at a time when many operators are trying to understand what treaty-related customs changes mean in practice.

We know there are still questions across the business community, and further guidance from HM Customs is expected in the coming weeks. In the meantime, we hope this resource helps make the process more accessible and easier to navigate.