Yes, you can still register a UK car with a missing V5C — but not by skipping it. You must obtain a replacement V5C before Revenue and the NCTS will VRT the vehicle. There is no back door and no Irish exemption: the entire original V5C is a mandatory document, and turning up at your appointment without it means the registration is refused on the spot.
If you have just discovered that the UK log book never arrived, or that the seller only handed over part of it, this is a common and fixable situation. Thousands of used cars are imported from Great Britain and Northern Ireland every year, and a missing logbook rarely stops the sale going through — it just adds one step before you can pay your Vehicle Registration Tax. You have 30 days from the date the vehicle enters the State to complete registration, so the priority is to secure a replacement document quickly and gather the rest of your paperwork in parallel.
What the V5C is and why Revenue needs it to VRT your car
The V5C is the UK vehicle log book, and Revenue requires the entire original document to VRT an imported car — photocopies and partial copies are refused. It is the registration certificate issued by the UK authorities that proves the vehicle's identity, its technical details and its emissions data. In Ireland the equivalent document is the vehicle registration certificate you receive after you have paid your VRT, which is why the UK V5C is the piece Revenue relies on to register a foreign car in the first place.
Because the V5C confirms both who the car is and what it emits, it sits at the centre of the whole registration process. Without it, the National Car Testing Service has nothing to check the vehicle against, and Revenue has no verified basis on which to assess the tax.
Which parts of the V5C are mandatory
You need the complete, original V5C — not a scan, not a photocopy, and not a loose section on its own. Revenue is explicit that the whole document is required and that copies will not be accepted:
- The entire original V5C must be presented; photocopies of the V5 are not accepted.
- The change of ownership portion on its own will not be accepted.
- The notification of export portion on its own will not be accepted.
If the seller only gave you a fragment of the logbook, treat it as a missing V5C and start the replacement process rather than hoping a partial document will pass.
Why the V5C drives your VRT and NOx calculation
Your VRT bill is built from the car's emissions, and those figures come straight from the V5C. Since 1 January 2021, Revenue uses the WLTP CO₂ emissions figure recorded on the V5C to calculate the tax, and the NOx figure needed for the NOx component is taken from the V5C or from a Certificate of Conformity. Without these readings, Revenue cannot verify the vehicle's emissions class, so the tax simply cannot be assessed.
There is one common wrinkle. A V5C issued after April 2019 may not show a NOx value. In that case the document itself is still mandatory, but you supplement it with a Certificate of Conformity so the NOx charge can be worked out. This is why the logbook is never optional: it is the source document for the numbers that decide how much you pay.
Can you VRT a car without a V5C in Ireland?
No — you cannot legally VRT or register a UK import in Ireland without the original V5C, because Revenue cannot verify the vehicle's identity or emissions without it. There is no legal exemption, no relief and no certification standard that allows the registration to proceed on a missing logbook. If you present at the NCTS without it, staff cannot complete the inspection and the registration is refused.
Now that you know what the V5C proves, the obvious question is whether Revenue makes any exception when the document is missing. It does not. The rule is the same whether the car came from a dealer or a private seller, and whether the logbook was lost, never issued to you, or retained by a previous owner.
It is worth being blunt about one thing: there is no way to "skip" VRT or drive an unregistered import indefinitely to avoid the paperwork. Doing so exposes you to penalties and to the vehicle being detained. The good news is that a missing V5C is almost never a dead end — it is a delay you resolve by obtaining a replacement, which is exactly what the next section covers.
How to get a replacement V5C from the Republic of Ireland
If you live in the Republic of Ireland you cannot request a replacement V5C from the DVLA yourself — you obtain one through a Northern Ireland agent, then use it to VRT your car. Since registration is impossible without the document, replacing the missing V5C is the practical fix, and it is a well-trodden path for Irish importers.
The process usually takes a little time, so start it as soon as you realise the logbook is missing rather than waiting until your registration deadline is close.
Why the DVLA won't deal with you directly
The V5C can only be held by someone with a UK or Northern Ireland address. An individual or business with a Republic of Ireland address cannot have the V5 transferred into their name, and cannot apply to the DVLA for a replacement from the Republic. This is not a technicality you can argue around — it is how the UK registration system is structured, and it is precisely why importers use an agent based across the border.
Using a Northern Ireland agent to obtain a replacement
A Northern Ireland agent applies for the replacement V5C on your behalf using a UK or NI address, then passes the document to you so you can register the car. To do this they generally need proof of the sale and the vehicle's details:
- Your purchase invoice or receipt, showing the date of purchase and price — keep this safe, as you will also need it for the VRT itself.
- The vehicle's VIN and registration number so the correct log book can be requested.
- Any correspondence you already have from the seller about the car's status.
Two scenarios: still UK-registered vs permanently exported
How the replacement is handled depends on the car's status on the UK side. In one scenario the vehicle is still registered to the UK seller and has not been marked as exported. In the other, the car has already been recorded as permanently exported from the UK. Both situations can be resolved through an agent, but they are treated differently, so tell your agent which applies to your car up front to avoid delays.
The full document checklist for your NCTS VRT appointment
To VRT a UK import at the NCTS you need the original V5C plus a defined set of documents: a VRTVPD2 form, a customs declaration with an MRN, your purchase invoice, proof of identity, proof of Irish address and your PPSN. Once your replacement V5C is in hand, the next hurdle is arriving at your appointment with everything else Revenue expects, because a single missing item can mean rebooking.
Prepare originals, not copies, and check each item off before you travel to the centre.
Core documents every importer needs
Every private importer brings broadly the same core set of documents, regardless of where the car came from. The table below summarises what to bring and where each item comes from.
| Document | Who it applies to | Where to get it |
|---|---|---|
| Original V5C (or V5CNI) | All UK imports | Seller, or a Northern Ireland agent if missing |
| Form VRTVPD2 | Private buyers (VRTVPD1 is for authorised traders) | Revenue / NCTS |
| Purchase invoice or signed seller's letter | All imports | Seller |
| Proof of identity — passport or Irish driving licence | All applicants | You |
| Proof of Irish address dated within 3 months | All applicants | Utility bill or bank statement |
| PPSN evidence (e.g. P60 or P21) | All applicants | Revenue document showing your number |
| Evidence of date of entry (e.g. ferry ticket) | All imports | Ferry or shipping receipt |
If you need a walkthrough of the declaration form itself, see our VRTVPD2 form guide before your appointment.
Extra documents for Great Britain imports
Cars brought in from Great Britain need customs paperwork that Northern Ireland cars usually do not. Since January 2021, a completed customs declaration (C88 or SAD) carrying its MRN number is mandatory for every UK import, and you need an EORI number to file it:
- A completed customs declaration with the MRN (Movement Reference Number).
- An EORI number, obtained via Revenue's online systems before you file the declaration.
- If you cannot complete the declaration yourself, a customs agent can do it for you.
Emissions documents: CoC, CO₂ and NOx
Bring the emissions paperwork that lets Revenue avoid charging you the worst-case rate. You need CO₂ documentation — without it, the highest VRT rate of 41% can apply — and a NOx figure. Where the V5C lacks a NOx value, a Certificate of Conformity supplies it, though a CoC does not replace the V5C for a used import.
Great Britain vs Northern Ireland: how the rules differ
The paperwork differs by origin: a car from Great Britain needs a full customs declaration, while many Northern Ireland vehicles can be registered without customs formalities. The Great Britain versus Northern Ireland distinction changes the customs picture completely, so identifying where your car genuinely comes from is one of the first things to get right.
For Great Britain imports, the customs declaration must be completed before you present the vehicle at the NCTS; if it is not done, registration is refused. For Northern Ireland, a vehicle that was registered or acquired there on or before 31 December 2020 may be brought into the State and registered without customs formalities. Cars that moved through NI more recently can be treated differently, so if your "NI car" was in fact first registered in Great Britain and only recently moved north, expect the Great Britain customs rules to apply. When in doubt, confirm the vehicle's history before you assume no declaration is needed.
Deadlines, costs and showing up without a V5C
You have 30 days from the vehicle's entry into the State to VRT it, and turning up at the NCTS without the V5C means your registration is refused and your appointment wasted. Getting the documents right matters even more once you factor in the clock and the money at stake, because a rejected appointment can push you past your deadline.
The 30-day rule and late-registration penalties
The 30-day clock starts from the date the vehicle enters the State, not the date you bought it — which is why the date-of-entry evidence matters. Miss the deadline and you face penalties and additional charges on top of the tax. If your replacement V5C is taking time, book your appointment as early as you realistically can and keep proof of when the car arrived.
Import costs: VRT, VAT at 23% and customs duty
Budget for more than the VRT alone when the car comes from Great Britain. On a Great Britain import you may owe customs duty of 10% and VAT of 23% in addition to the VRT, plus the NOx levy charged at €5 to €25 per mg/km:
- VRT — based on the car's Open Market Selling Price and emissions.
- VAT at 23% — applied to Great Britain imports.
- Customs duty at 10% — applied to Great Britain imports.
- NOx levy — €5 to €25 per mg/km, taken from the V5C or Certificate of Conformity.
Estimate your VRT before you commit
Work out the likely cost before you hand over money, especially if the logbook is missing and you are weighing up whether the deal still makes sense. Because VRT is driven by the Open Market Selling Price and the car's emissions, a quick estimate tells you what you are really committing to. Run the car's details through our VRT calculator to estimate the tax so there are no surprises at the NCTS.
Frequently asked questions
Below are the questions importers most often ask once they understand that a replacement V5C is the way forward. These cover edge cases not dealt with above.
How do I get my Irish registration certificate after I VRT the car?
Once you pay your VRT at the NCTS, Revenue registers the vehicle and issues an Irish vehicle registration certificate, and your registration number is assigned so you can order plates. The certificate is posted to you afterwards — you do not receive the UK V5C back as your permanent document.
Can I tax my car in Ireland without a logbook?
Motor tax and VRT are two different things. You cannot complete registration without the V5C, but once the car is VRT'd and on an Irish registration, your annual motor tax is managed through the Irish system, not the UK logbook. In other words, sort the V5C and VRT first, and motor tax follows.
Does the V5C have to be in my name?
No — and in fact it cannot be in your name if you live in the Republic of Ireland, because only holders with a UK or Northern Ireland address can be named on the V5C. Revenue does not expect the logbook to be in the importer's name.
Will Revenue accept a photocopy or an incomplete V5C?
No. The entire original document is required, and photocopies or detached sections are refused. If all you have is a copy or a partial logbook, treat it as missing and arrange a replacement before your appointment.
My V5C has no NOx reading — can I still VRT the car?
Yes. A V5C issued after April 2019 may not show a NOx value, but you can still register the car by supplying a Certificate of Conformity alongside the V5C so the NOx charge can be calculated.
Published 20 July 2026 by the VRT Calculator Ireland editorial team.