Do you pay VAT or customs duty on a car bought in Northern Ireland, and what proof do you need?
A car bought in Northern Ireland (NI) can be registered here without extra Irish customs duty or import VAT, but only if it came into NI properly and you can prove it. What counts as proof depends on who brought the car into NI in the first place.
Buying in NI isn't the same as importing from Great Britain. A car that reached NI from GB without being properly imported can be treated as if you had imported it from GB yourself, with import VAT and customs duty (where it applies) on top.
In short: usually no extra duty or import VAT if the car came into NI properly, but two other things can still apply. Irish VAT can apply to a car that is new for VAT purposes (see "Very new cars" below). And VRT is a separate tax, covered in our guide to importing an electric car from Northern Ireland. The UK VAT in an NI dealer's price is separate from the Irish VAT in this guide.
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About this guide. General guidance, not legal or tax advice. It reflects the official sources named here as of the date above, and anything it advises you to do next is based on the checks you've confirmed. SimplyEV can't see your car or documents and doesn't verify any check for you. Rules change, so use the official service for the final answer. No payment or commercial arrangement influences what this guide says.
Is a car from Northern Ireland an import?
Between NI and Ireland there are no customs checks or declarations on the journey itself. The customs question comes earlier: was the car properly imported into NI?
Revenue says a car bought in NI can be registered here, with no extra customs duty or import VAT, if it was imported into NI under the post-Brexit rules (the Windsor Framework, the post-Brexit trade arrangements for NI), or if it was already in NI before 1 January 2021 and has stayed there. Cars that meet neither condition "are not customs-cleared in the State and cannot be registered", so "NI is in the EU" doesn't settle it.
Cars with a GB history. In our reading, a GB history isn't a bar in itself. What matters is whether the car was properly imported into NI and whether you can prove it. Revenue's manual says that where a copy of the NI customs declaration is provided, a car brought in from GB can be registered here without further VAT or duty. If proof can't be given to Revenue's satisfaction, the car is treated as if it came straight from GB. Our reading: for a car with a GB history, ask for that declaration first (the documents route below is at Revenue's discretion), because an NI V5C, service history and MOT show the car was used in NI, not that customs was dealt with when it arrived.
What to ask the dealer, and what each answer means
Ask in plain words: "Did you import this car into Northern Ireland, or did you acquire it after it was already here?" If the seller is a private owner, also ask whether they were its first owner in NI. Our guide to importing an electric car from Northern Ireland has the full dealer scripts.
| The answer | What Revenue asks for | What it means for you |
|---|---|---|
| "We imported it" (or a private seller who originally imported it) | A copy of the customs declaration lodged in NI. Revenue's manual adds: "No other documentation will be acceptable as proof in such cases." | No declaration: don't buy (three special cases are below). If you are shown one, it is the proof Revenue asks for, not a promise Revenue will accept it. |
| "We got it from someone else" (a trade-in, say, or a private seller who isn't the car's first owner in NI) | A copy of the NI declaration if there is one. Otherwise Revenue may, at its discretion, accept the original V5C from the last registered keeper (living in NI), an NI service history and, if the car needs an MOT, its NI MOT history. It can ask for more, such as insurance details or telematics data, and it checks what you give it. | Never automatic, and Revenue doesn't approve a car or its papers in advance. For a dealer, this route is only open if it isn't the importer and isn't connected with the importer. For a private seller, it is only open if they weren't the car's first owner in NI. Revenue doesn't say what "connected" means, so if you can't tell, treat the answer as unknown. |
| Won't say, doesn't know, or it was an agent or auction sale | Nothing can be checked yet | No deposit until you have an answer in writing. No answer isn't a yes. |
If a private seller was the car's first owner in NI but says they didn't import it, Revenue's published guidance doesn't say which route applies. Treat it as unresolved: ask who imported the car and what customs paperwork exists, and don't treat the car as cleared under either route until that is settled.
One special case: a car first registered new in NI on or after 1 January 2021. Current published guidance doesn't clearly resolve it, so treat it as unresolved, not a pass and not an automatic stop: check the V5C shows first registration in NI and ask what customs paperwork exists, but don't treat the car as cleared under either route until this case has been resolved.
A dealer may tell you "we use the VAT scheme". HMRC's second-hand motor vehicle scheme lets VAT-registered dealers claim a VAT-related payment when they buy in Great Britain and move a car to NI, and the margin scheme is another dealer VAT arrangement. Neither shows the car was properly imported into NI, so go back to the question: who imported it?
Some things you'll hear aren't tests Revenue lists: "one NI owner is enough", "three or six months in NI is enough", "it has an NI plate", "the V5C has an NI address". Revenue's manual publishes no minimum time in NI, and the V5C is one of three documents on the discretionary route, not a pass on its own. Our guide to the V5C covers what to get from the seller.
Reading a customs declaration
Revenue's web pages call it an "NI Import Declaration"; its manual calls it a customs declaration lodged in NI. A copy is what Revenue asks for, and the car must be identifiable from it.
Revenue doesn't say what "completed", "accepted" or "cleared" means for these declarations, and doesn't cover one that is still being processed. So, as SimplyEV precautions: check it is for this car, ask the dealer to note its reference number (the MRN) and which line covers your car's VIN, and if the dealer says it is still being processed, make no final payment until you have seen it. The National Car Testing Service (NCTS), which carries out VRT registration, names the MRN and item number for imports from Great Britain; for an NI purchase Revenue's wording is a copy of the declaration, so this is a precaution, not a stated NI requirement.
Older cars and "has stayed in NI"
A car that was in NI before the cut-off date and has stayed there can be registered here without extra customs duty or import VAT. But Revenue's manual says it "will require proof of this status" and doesn't say what proof. The car must not have been "sold, exported, transferred" or otherwise moved out of NI, with only "ad hoc journeys" or normal business use allowed. Revenue includes "sold" among the events that break the condition, but doesn't explain how that wording applies to a sale between NI owners. So a traded-in older car is a grey area, and "it's been here for years" isn't proof in itself.
If the seller is the business that originally brought that older car into NI, Revenue's current provisions don't say how two rules fit together here: the importer-seller rule asks for a customs declaration, but an older car may not have a post-Brexit NI one. Revenue doesn't say which applies. Treat it as unresolved: ask how and when the car came into NI and what paperwork exists. Don't treat the position as resolved just because some paperwork is available.
Very new cars: Irish VAT can still apply
Separately from all of the above, a car that is new for VAT attracts Irish VAT. Revenue treats a car as new if it is 6 months old or less, or has done 6,000 km or less. Either is enough, so an older car with very low mileage can be new for VAT. Revenue says private buyers normally pay this VAT with the VRT. How that works where VRT is relieved to nothing isn't spelled out. Revenue's pages word the exact limits slightly differently, so treat a car at either limit as close to it.
Revenue also warns that VAT paid in another country may not be refundable, so VAT can end up paid twice. Its examples are from EU countries, and Revenue treats Northern Ireland like an EU country for VAT on goods, so treat the same risk as possible on a car from a Northern Ireland dealer.
Which date counts? Revenue's VAT guidance calls the day the vehicle arrives in Ireland the "operative date of supply", and says the 6,000 km figure is measured at arrival, not the mileage on the invoice. SimplyEV advice: treat a car as one Irish VAT may apply to if it is within either limit on the day it arrives or on the day you buy it. If a car is near either limit, ask the dealer in writing how VAT has been treated before you pay a deposit, and don't count on it passing a limit between purchase and registration. NI odometers may show miles, so check and convert.
If the proof isn't there
Revenue says that if the proof can't be provided to its satisfaction, the car is treated as if it was imported directly from GB, and import VAT and customs duty (where it applies) are payable. Without the proof, the car can't be registered on the NI basis. The manual's way out is a customs declaration made in NI or Ireland, with duty and VAT paid.
Where the proof isn't there, SimplyEV advice is not to buy. The three special cases above (a car first registered new in NI on or after the cut-off date, an older car whose seller is the importing business, and a car from a private seller who was its first NI owner but didn't import it) are the exception: don't pay the balance until you have whatever paperwork exists, and don't treat the car as cleared under either route until the case has been resolved.
For the whole journey, from checking the car to your Irish plates, see our guide to importing an electric car from Northern Ireland. Next to read: our guide to the V5C, then our guide to the VRT appointment. To check the car's own history first, see our guide to checking a Northern Ireland electric car's history.