Post-Brexit Reality Check: EU Residents Trading With UK via Irish Firm
Using an Irish company to sell into the UK can still work very well for EU residents, but it is no longer as simple as “set up in Ireland and you are sorted”. Brexit split what used to be one shared system into two different regimes. That means fresh rules for VAT, customs, and where your profits are taxed.
In this post, we look at what is required for an EU resident to form an Irish company and then actually trade with the UK in a clean, compliant way. We will keep things plain and practical, so you can see what really changed with Brexit, what stayed the same, and where you need proper planning before the busy end-of-year trading rush.
Why EU Entrepreneurs Still Choose Ireland After Brexit
Plenty of EU-based founders still want smooth access to both the EU single market and the UK. Ireland is a popular choice for that because it sits in the EU, uses English, follows a common law system like the UK, and has very close business links across the Irish Sea.
Ireland can give you:
- An EU company trading freely within the EU
- A familiar legal style for UK partners
- A gateway for online and physical sales to UK buyers
But the big question is not just “can I open an Irish company?”. The real question is: what structure, registrations, and contracts do you need so that your Irish company can trade with the UK without VAT shocks, seized goods, or tax problems?
As rules keep shifting and new EU customs reforms roll out, it is smart to get your model clear long before sales spike in the colder months, when shipping and stock pressure also rise.
Forming an Irish Company as an EU Resident
First, the easy part. As an EU resident, you can own 100 percent of an Irish company. You can also be the only shareholder and director, as long as you meet Irish rules about directors from the European Economic Area or have an approved alternative in place.
At a basic level, what is required for an EU resident to form an Irish company includes:
- Company name and constitution
- Registered office address in Ireland
- At least one director and a company secretary
- Standard KYC and anti-money laundering checks
Those steps give you a legal company on paper, but they do not automatically give you “substance” in the eyes of tax and customs authorities. Substance means real activity, like where decisions are made, where staff sit, and where stock is held.
This is where professional support matters. A service provider can help you with:
- Nominee and company secretarial services
- Irish tax registrations
- Introductions to banking or payment partners
- Ongoing filings and record-keeping
Without this structure and support, it is easy to end up with a company that looks Irish in name but is treated differently for tax and customs.
Trading with the UK After Brexit: VAT and EORI Essentials
Once your Irish company exists, you need to look at VAT. An Irish VAT number may be needed if your business passes Irish VAT thresholds or if your activity makes it clear you are trading in a regular way, rather than as a one-off.
For UK sales, you might also need a UK VAT registration. That can depend on:
- Whether you sell B2B or B2C
- Whether you sell through online marketplaces
- Where the goods are at the time of sale
- Whether you import stock into the UK before selling
Many EU founders assume that an Irish VAT number alone is enough. It is not. The UK now has its own full VAT system. In some cases a UK marketplace will collect UK VAT for you, but that does not mean all your liability disappears. You still need to know who is treated as the supplier and what returns are due.
On top of VAT, you need an EORI number. For EU trade your Irish company will usually need:
- An EU EORI registered in Ireland
- Sometimes a separate UK EORI if you import into Great Britain
How you set up your supply chain matters a lot. For example:
- Direct shipping from the EU to UK buyers
- Stock held in a UK fulfilment centre
- Dropshipping from a non-EU supplier to UK customers
Your choice of Incoterms, like DAP or DDP style terms, decides who is the importer and who is on the hook for customs declarations, duty, and local VAT. This is where many businesses fall into traps and only realise there is a problem when shipments are held at the border.
Customs, Logistics, and Contracts in a Two-Regime World
After Brexit, the EU and UK became two separate customs territories. That means:
- Customs declarations for goods between Ireland and Great Britain
- Possible tariffs, depending on origin rules
- Border checks, delays, and extra paperwork
Most EU founders do not want to handle customs entries alone. Instead they might work with:
- Customs agents or brokers
- Freight forwarders
- UK-based fulfilment and logistics partners
Choosing between DAP style (buyer pays duty) and DDP style (seller takes all import costs) can change your pricing, your cash flow, and even your need to register for VAT in the UK.
On the legal side, Irish contract law looks and feels familiar to UK lawyers, as both use common law. When you sign terms with UK buyers or suppliers, you should think about:
- Which law applies, Irish or UK
- Which courts will handle disputes
- How your commercial terms match your logistics model
Good contracts that reflect the real movement of goods and the real split of risk can reduce surprise bills, arguments over late deliveries, and penalties for wrong declarations.
Permanent Establishment Risk and Where Your Profits Are Taxed
Permanent establishment, or PE, sounds technical, but the idea is simple. It is about when the UK can say, “part of this Irish company is really operating here, so we can tax some of its profits”.
Typical PE risk points include:
- Staff or agents in the UK who regularly close deals for you
- A long-term office or fixed place of business in the UK
- A UK warehouse or fulfilment centre that is core to your sales
- Directors who usually make key decisions while in the UK
If a UK PE exists, the UK can tax the profits linked to that PE, even though your company is Irish. Just having an Irish company does not shield everything from UK tax.
To manage this, you need clear evidence of where your real activity happens:
- Board meetings and key decisions mainly in Ireland
- Records of who signs contracts and where
- A sensible link between where people work and where profits show up
PE analysis is not a quick checklist. It needs careful review of your exact model, who does what, and where they sit.
Shaping a Compliant Irish UK Trading Strategy
Brexit changed the path, but it did not close it. Ireland still gives EU residents a strong base to reach both EU customers and UK buyers, as long as the structure matches the real trade.
For an EU resident, forming an Irish company that works smoothly with the UK means thinking beyond the first registration form. You need the right company setup, the correct VAT and EORI numbers, customs and logistics planned with your partners, proper contracts, and a clear view of any UK PE risk before you scale.
Take The Next Step In Forming Your Irish Company Today
If you are an EU resident ready to set up in Ireland, we can guide you through every stage of the process with clarity and efficiency. Start by exploring What is required for an EU resident to form an Irish company so you know exactly which documents and details you will need. At Chern & Co Ltd., we handle the practicalities so you can focus on your business goals. If you would like tailored advice for your specific situation, please contact us and we will be happy to help.
