Advanced warning of TSS outage

On Sunday 2 June from 17:00 to 22:00, there will be an update to the TSS Portal as well as improvements to the Northern Ireland Customs and Trade Academy (NICTA) website. These changes will require a short downtime of the portal.  There will be updates to the following guides: Data guide: TSS declaration data requirements […]

TSS tip: template feature spotlight

TSS offers traders the option to streamline and speed up their movements through the Template feature. If you frequently handle shipments that use the same commercial information, such as movement type, types of goods, or customers, this may benefit you. Traders can set defaults within TSS to generate templates for use in completing Entry Summary […]

Open a Duty Deferment Account to manage your Northern Ireland declarations

Using your own Duty Deferment Account (DDA) allows you to delay paying most customs or tax charges when you import goods or release goods from an excise warehouse. Both traders and agents/intermediaries can apply for a DDA. As an agent or intermediary submitting customs declarations on behalf of a trader, you may use either your […]

Claiming preferential rates of duty on goods movements from GB to NI under UK-EU Trade and Cooperation Agreement (TCA)

Traders can claim preferential tariff rates on any goods moved that are UK origin under the TCA on goods moved directly from Great Britain (GB) to Northern Ireland (NI) if the goods can be proven to be of preferential UK origin (produced/manufactured). Simply purchasing from the UK does not mean the goods automatically qualify as […]

Advanced warning of TSS outage: new TSS features and NICTA updates coming in June

There will soon be an update to the TSS Portal as well as improvements to the Northern Ireland Customs and Trade Academy (NICTA) website.  These changes will require a short downtime of the portal, which is currently planned for Sunday 2 June 2024 from 17:00 to 22:00.  We will provide a short summary of these […]

Could you benefit from joining the UK Internal Market Scheme?

If you move goods into Northern Ireland and meet the criteria to declare them ‘not at risk’ and they will remain in NI, then you could benefit from joining the UK Internal Market Scheme (UKIMS). You can apply to join UKIMS on GOV.UK. Benefits of UKIMS UKIMS allows trusted traders to declare eligible goods ‘not […]

Best practice: performing an EORI validity check before processing declarations

To avoid any errors in declarations, we recommend that traders check the EORIs you are using for the declaration process. Visit: for EU EORIs, including XI EORIs  GOV.UK for GB EORIs The Economic Operator System (EOS) also offers an API that can be used to automate checks. Visit for more information. You can […]

Windsor Framework glossary of terms

As part of the recent updates, we’ve added a new webinar recording to NICTA and introduced some new terminology and acronyms, which you can find in the Jargon Buster. You may also notice that we’ve updated some of the existing entries (see below).    Acronym Term Definition SPIMM Simplified Process for Internal Market Movements Simplified […]

What to do if you receive error code CDS40045

If you notice the CDS error code ‘CDS40045’ whilst completing your Supplementary Declaration or Full Frontier Declaration, there will be missing documents and/or other reference codes required against certain commodity codes. This may be a result of updates to the commodity code structure where some codes are being added, changed or merged. To support traders […]

Changes to VAT and Economic Operators Registration and Identification (EORI) Guidance

If  a business deregisters for VAT, any Economic Operators Registration and Identification (EORI) number(s) they hold will also be removed at the same time. Businesses established in GB and NI require an EORI number in order to complete customs declarations, hold customs authorisations including a UK Internal Market System (UKIMS) authorisation, and various licences. In […]
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