Belfast B2B creator campaigns and post-Brexit trade rules

What to take away

How the Windsor Framework affects Northern Irish creator work

Belfast creators work in a city with a regulatory position that no other UK city shares. Under the Windsor Framework, Northern Ireland follows EU rules for goods while remaining part of the UK for services. For creator work, the services side is the one that counts: HMRC's VAT notice on the place of supply of services states that the Northern Ireland Protocol only applies to goods and that services are outside its scope. A Belfast creator's campaign for an EU brand is therefore not pulled into EU rules by the Framework itself; EU rules reach it through the platforms and the audience.

The other half of the post-Brexit rules is the UK/EU and EAEC Trade and Cooperation Agreement, published by the UK government as Treaty Series No. 8/2021. Its text was agreed in December 2020, and it is the treaty under which a Belfast creator's services trade with EU businesses sits, while the Windsor Framework adds the Northern Ireland arrangements for goods.

The EU platform regulation context matters because Belfast creators often publish on platforms that face EU-wide duties. The Digital Services Act sets rules for online platforms operating in the EU, including transparency and advertising requirements.

A Belfast creator working with an EU brand may need to follow those platform duties even though they are based in the UK.

For UK brands, the position is simpler. A Belfast creator selling content services to a London or Manchester business is generally treated as a UK supplier. The Windsor Framework does not change the core service relationship, but it does affect how the work is described and invoiced.

Northern Irish marketers should also watch CMA guidance on commercial practices. The Competition and Markets Authority expects influencer content to be clearly labelled as advertising. That applies to B2B campaigns as much as consumer ones, and it applies whether the brand is in Belfast, Birmingham or Berlin. Our UK rules and compliance guide covers the disclosure detail.

A practical example: a Belfast software firm hires a local creator to make a LinkedIn series for a German client. The German client wants EU-facing disclosures. The creator must label the content as advertising under CMA rules and check whether the DSA adds platform-level duties. Both can be handled in one brief.

Dual VAT registration for Belfast creators

Dual VAT registration is the term Belfast creators meet when they sell services into both the UK and the EU. If a creator is VAT registered in the UK and also needs to account for VAT in an EU member state, they hold two registrations. For B2B work it is the exception rather than the rule, because of where the service is treated as supplied.

HMRC's place of supply notice (VAT Notice 741A) sets the B2B general rule: the supply is made where the customer belongs. A creator's campaign for a business in Germany is therefore supplied in Germany, and HMRC states that services supplied in another country under these rules are outside the scope of UK VAT and can only be taxed in that country. Where the B2B rule applies, the creator should obtain commercial evidence that the customer is in business and belongs outside the UK. Whether the EU country then expects anything from the creator is a question for that country's tax authority, which is where an EU registration can arise.

On the UK side, the rule is set out on GOV.UK's page on when to register for VAT: a business must register if its total taxable turnover for the last 12 months goes over £90,000, or if it expects taxable turnover to go over £90,000 in the next 30 days, and it can register voluntarily below that. Once over the threshold, registration is due within 30 days of the end of the month in which it was passed. A creator with a mix of UK and EU clients should ask an accountant which of their sales count towards that turnover.

Dual registration adds admin. Two sets of returns, two payment schedules and two sets of records. For a small Belfast creator business, that can be the difference between taking an EU client and turning it down. Marketers should price that admin into the campaign budget.

Invoices must be clear. A Belfast creator invoicing a UK brand should show UK VAT where applicable. The same creator invoicing an EU brand may need to show the EU VAT number and apply the reverse charge. Getting this wrong can delay payment and create a compliance risk.

Companies House verification is part of the picture. UK brands and EU brands both want to know that the creator business is real. Companies House confirms the company exists and who is responsible for it. That step belongs in every cross-border onboarding process, and our market entry checklist sets out the wider sequence.

Data transfer rules between Northern Ireland, Great Britain and the EU

Data transfer rules in Northern Ireland are not identical to those in Great Britain. The UK GDPR applies across the UK, including Northern Ireland. The retained UK GDPR (retained Regulation (EU) 2016/679) sets the obligations for handling personal data, including transfers.

Within the UK, transfers between Belfast and Great Britain are domestic. The same rules apply in both places. That means a Belfast creator sending a campaign list to a London agency is not making a restricted international transfer.

Transfers to the EU are also straightforward. Under UK data protection law, personal data can flow from the UK to the EU without extra safeguards.

Going the other way, from the EU into Northern Ireland, data flows under the EU's adequacy decision for the UK, as it does for the rest of the UK. The European Commission's list of adequacy decisions shows the GDPR decision for the United Kingdom adopted on 28 June 2021 and amended in December 2025 through a renewal decision.

Creators handling B2B contact data need a lawful basis. Legitimate interests often covers business outreach, but the creator must document the assessment. Consent is another route, though it is harder to manage at scale. The principle that data protection starts with lawful outreach applies to every list used.

Belfast marketers should keep records of every transfer. If a campaign uses a CRM in the EU and a creator in Belfast, the data flow should be mapped. The Information Commissioner's Office enforces UK GDPR and can ask for that mapping.

Contracting Belfast creators with UK and EU brands

UK and EU brand contracting is where most cross-border campaigns fail. The contract should state which law governs, where disputes are heard and how VAT is handled. Without those clauses, a Belfast creator and an EU brand can end up arguing about basics.

A well-drafted agreement also covers data protection. It should name the lawful basis for any personal data shared, the retention period and the security measures. That keeps the campaign inside UK GDPR and EU GDPR expectations. Clear wording is what makes commercial contracts safer across both jurisdictions.

Payment terms need attention. EU brands often pay in euros and may withhold tax under local rules. The contract should say who bears the cost of any withholding and when payment is due. Belfast creators should not assume UK payment norms apply.

Disclosure is a contract term too. CMA guidance on commercial practices expects advertising to be identifiable across cross-border campaigns. The contract should require the creator to label content clearly and to follow the brand's disclosure instructions. That protects both sides if a complaint is made.

Finally, the contract should allow for the Windsor Framework's dual nature. If the campaign touches EU consumers, the brand may need EU-facing terms. If it only touches UK business buyers, UK terms may suffice. A single template rarely covers both.

Practical compliance steps for cross-border campaigns

Use these steps to set up a Belfast creator campaign that works across UK and EU rules.

Before launch, run this checklist:

A worked example shows how this fits together. A Belfast analytics firm wants a creator to promote a webinar to UK and German buyers. The creator is VAT registered in the UK and needs an EU registration for the German work.

The data flow goes from the firm's Belfast CRM to the creator's UK tool, then to a German event platform.

The contract names Northern Irish law, requires clear ad labels and sets out the data transfer basis. The campaign launches on time because the compliance steps were done first. Our vendor due diligence explained note covers the checks on the creator side.

Cross-border campaigns also benefit from a second pair of eyes. A marketing consultant or the firm's accountant can review the VAT and data points before money is spent. That review is cheaper than fixing a problem later.

Common questions