How should taxes be configured for sales to Northern Ireland in Shopify?

Theme Store
1

i everyone,

We are currently reviewing how to enable sales to Northern Ireland in a Shopify store and would appreciate some guidance from anyone who has implemented a similar setup.

Our current situation is:

  • The store sells from the EU.

  • We want to enable shipping specifically to Northern Ireland.

  • UK is already configured separately.

  • We have created, or are preparing to create, a dedicated shipping zone containing only Northern Ireland.

  • The main uncertainty is how taxes should be configured correctly for this region.

In Shopify, Northern Ireland can be selected as a separate region inside a UK shipping zone. However, we are unsure whether the tax configuration can also be applied specifically to Northern Ireland without affecting the rest of the United Kingdom.

Our questions are:

  • Is it possible to configure a tax rate that applies only to Northern Ireland?

  • Should Northern Ireland be handled through the EU OSS registration, the UK VAT registration, or both?

  • Does Shopify automatically identify Northern Ireland through the province code NIR and apply the correct tax treatment?

  • Can a UK tax override be limited to Northern Ireland, or would it affect England, Scotland and Wales as well?

  • Is using a separate shipping zone for Northern Ireland the recommended setup?

  • Are there any specific considerations for orders below or above £135?

  • What test cases would you recommend before enabling this in production?

Our main goal is to keep the tax calculation automatic if possible, while ensuring that orders to Northern Ireland are correctly mapped and transferred to our ERP and administration systems.

Any examples, documentation or recommendations from stores already selling from the EU to Northern Ireland would be greatly appreciated.

Thank you!