Vehicle tax when you buy a used car
Vehicle tax does not transfer with a used car: it is cancelled the moment the seller tells DVLA the car has been sold, the remaining tax is refunded to the seller, and the car you have just bought is untaxed from that moment — so you must tax it in your own name before you drive it away, or declare it SORN and keep it off the public road.
Why it catches people: there is no tax disc on the windscreen any more, so nothing visibly changes when the tax is cancelled. The car looks exactly as it did when the advert said it was taxed. A seller who tells you how many months are left on it is describing their own position, not yours: those months are refunded to them, and the car is untaxed the moment DVLA is told it has been sold.
What happens to the tax at the moment of sale
Tax is held against the vehicle record, in the name of the registered keeper. When a car changes hands, the sequence is fixed and there is no version of it in which the buyer inherits the tax.
- The seller tells DVLA the car has been sold, using the V5C. This is their legal responsibility as the outgoing keeper.
- DVLA cancels the vehicle tax.
- The remaining tax is refunded to the seller.
- The car is now untaxed. Not reduced, not pending, not carried over. Untaxed, from that point on.
- You tax it in your own name before you drive it, or you make a SORN declaration and keep it off the public road.
Because tax is enforced from the electronic record rather than from a disc in the window, an untaxed car on a public road is detectable without anyone stopping it. That is why this particular rule bites at the exact moment people are least likely to be thinking about paperwork: keys in hand, on the forecourt or the seller’s driveway.
What the buyer has to do before driving away
- Get the green new keeper slip. The seller tears it off the V5C and hands it to you. The reference number on it lets you tax the car in your own name straight away, before a V5C is issued to you.
- Tax it, or declare SORN. There is no grace period built into the handover. If the car is not going on the road yet, SORN is the legitimate alternative and it means the car has to stay off the public road entirely.
- Have insurance in place in your name before the car moves.
- Know the MOT position. The first test falls due on the third anniversary of registration in Great Britain, and at four years old in Northern Ireland, where testing is run by DVA rather than DVSA.
- Do not pay a premium for “remaining tax”. It has no value to you. It is refunded to the seller either way.
Why the registration date decides everything
Once you are the one paying, the amount is set by when the car was first registered, not by how clean or how expensive it is now. Three systems run side by side in the UK, and a car moves between them only by being a different car.
This matters more on the used market than anywhere else. The average licensed car in the UK is 10 years old (DfT, end of 2025), so the 1 April 2017 boundary runs straight through the middle of what is for sale: a large share of used stock sits on one side of it and a large share on the other, and the two are taxed on completely different logic.
Before 1 March 2001
Taxed on engine size alone. CO2 is not used at all. £230 a year up to 1549cc, £375 a year above it.
1 March 2001 to 31 March 2017
A graduated CO2 band, paid at the same rate every year for the life of the car. £20 to £790 a year. No first-year charge and no Expensive Car Supplement.
On or after 1 April 2017
A one-off CO2-based first-year rate, then a flat £200 standard rate every year after. As a used buyer you pay the standard rate; the first-year rate was settled by the original buyer.
Both changeovers happen mid-year, so a registration year on its own is not enough to place a car. A 120 g/km car registered in March 2017 sits in the band system; the same car registered that April pays the flat standard rate. Check the date of first registration on the V5C, not the model year in the advert.
Annual bands for cars registered 2001 to 2017
Paid every year, unchanged for the life of the car. 2026/27 rates.
| Band | CO2 (g/km) | Per year |
|---|---|---|
| A | 0–100 | £20 |
| B | 101–110 | £20 |
| C | 111–120 | £35 |
| D | 121–130 | £170 |
| E | 131–140 | £200 |
| F | 141–150 | £225 |
| G | 151–165 | £275 |
| H | 166–175 | £325 |
| I | 176–185 | £360 |
| J | 186–200 | £410 |
| K | 201–225 | £445 |
| L | 226–255 | £760 |
| M | Over 255 | £790 |
Band A used to be zero. That exemption has been removed, so the cleanest cars of this era now pay £20 a year. Nothing in this system is free to tax any more, and an electric car registered under it sits in Band A like anything else emitting nothing at the tailpipe.
First-year rates for cars registered from April 2017
Charged once, on first registration, so a used buyer never pays this. It is here because it explains why the standard rate is flat: the emissions charge was taken up front. Diesels that do not meet the RDE2 standard pay one band higher. 2026/27 rates.
| CO2 (g/km) | Petrol / RDE2 diesel | Other diesel | Alternative fuel |
|---|---|---|---|
| 0 | £10 | £10 | £10 |
| 1–50 | £115 | £135 | £115 |
| 51–75 | £135 | £280 | £135 |
| 76–90 | £280 | £365 | £280 |
| 91–100 | £365 | £405 | £365 |
| 101–110 | £405 | £455 | £405 |
| 111–130 | £455 | £560 | £455 |
| 131–150 | £560 | £1,410 | £560 |
| 151–170 | £1,410 | £2,270 | £1,410 |
| 171–190 | £2,270 | £3,420 | £2,270 |
| 191–225 | £3,420 | £4,850 | £3,420 |
| 226–255 | £4,850 | £5,690 | £4,850 |
| Over 255 | £5,690 | £5,690 | £5,690 |
To put a specific car through all three systems, including the changeover months and the supplement, use the car tax calculator. For what a particular registration is taxed at right now, and whether it is currently taxed, the DVLA vehicle enquiry service on GOV.UK answers from the plate alone.
The Expensive Car Supplement, and why a listing cannot tell you
The Expensive Car Supplement is £440 a year on top of the standard rate, charged in years 2 to 6 of the car’s life, which is £2,200 in total across that window. It applies to cars registered on or after 1 April 2017.
It is assessed on the list price when the car was new. Not the price you pay, not the trade value, not what the dealer has it up for. That is the whole difficulty: a used advert shows the asking price, and the asking price is the one number that has no bearing on whether the supplement applies. A car advertised well below the threshold can still be inside the supplement window, because depreciation has moved the asking price and not the figure the charge is assessed on.
- Threshold for petrol, diesel and alternative-fuel cars: list price over £40,000 when new.
- Threshold for zero-emission cars first registered on or after 1 April 2025: over £50,000, with that threshold taking effect on 1 April 2026.
- An electric car first registered between 1 April 2017 and 31 March 2025 pays the £200 standard rate and no supplement at any list price. That is a large and often-missed part of the used electric market.
- The supplement runs for 5 years and then stops, so an older car may have been through it already.
The practical move is to ask. The original list price is on the V5C, and a dealer can tell you what the car listed at when new. Working it out from the asking price is guesswork, and the gap between right and wrong here is £440 a year for as long as the window lasts.
Electric cars lost the exemption on 1 April 2025
Electric cars were exempt from vehicle tax until 1 April 2025. They are not any more. An electric car now pays the same £200 standard rate as a petrol or diesel car of the same era, and a zero-emission car first registered on or after 1 April 2026 pays £10 in its first year before joining the standard rate.
Three positions are worth keeping straight when you are looking at used electric cars: one registered under the 2001–2017 system sits in Band A at £20 a year; one registered between 1 April 2017 and 31 March 2025 pays £200 with no Expensive Car Supplement whatever it cost new; and one registered on or after 1 April 2025 pays £200 and can also be caught by the supplement on the £50,000 threshold. Adverts and older guidance still describe electric cars as tax-free; that stopped being true on 1 April 2025.
Historic vehicles: two different exemptions, often confused
Older vehicles can be exempt from vehicle tax and can be exempt from MOT testing. These are separate rules, with different tests, different dates and different paperwork. A vehicle can qualify for one and not the other.
Tax exemption (historic tax class)
- Built before 1 January 1986, exempt from 1 April 2026.
- Rolling: the cut-off moves forward by a year, every year.
- Must be applied for. It is not granted automatically because the vehicle is old enough.
- The vehicle still has to be taxed every year, at a rate of zero. Being exempt does not mean being untaxed, and an unapplied-for exemption is just an untaxed car.
MOT exemption (a different rule)
- Built or first registered more than 40 years ago and no substantial changes in the last 30 years. Both parts have to be true.
- No application. It is declared on form V112 when the vehicle is taxed.
- Excluded: substantially changed vehicles, Q-plated vehicles, kit cars, kit conversions and DVLA-defined reconstructed classics.
- This is the Great Britain rule, where testing is run by DVSA. Testing in Northern Ireland is run by DVA under its own rules, so do not assume it carries across.
If you are buying something old enough for either to be in play, ask which of the two the seller means. “It is exempt” is ambiguous, and the tax half of it depends on an application that may never have been made.
Great Britain and Northern Ireland
Vehicle tax is administered by DVLA across the whole UK, so everything above — the cancellation on sale, the refund to the seller, the three systems and the supplement — applies in Northern Ireland exactly as it does in Great Britain.
Roadworthiness testing does not work that way. In Great Britain the MOT is run by DVSA, the first test falls due on the third anniversary of registration, and the class 4 (car) fee is capped at a statutory maximum of £54.85. In Northern Ireland testing is run by DVA, the first test is at four years old, and the fees are £38.00 for a full test and £29.50 for a retest. Neither of the Northern Ireland fees carries VAT either.
Before you hand over the money
- Ask for the date of first registration from the V5C. It decides which of the three systems applies, and therefore the annual cost.
- Ask what the car listed at when new if it is a 2017-or-later car that could have been over £40,000 when new — or over £50,000 if it is a zero-emission car first registered on or after 1 April 2025. The advert cannot answer this.
- Check the fuel and the registration dates together for electric cars. The 1 April 2025 line changes the answer, and so does the 1 April 2017 one.
- Take the green new keeper slip with you. Without it you cannot tax the car on the spot.
- Tax it before you drive it. Not later that day, not when the V5C arrives.
Work out the tax before you buy
The car tax calculator takes the registration year, CO2 figure, fuel and original list price and returns the annual cost under the right system, including the Expensive Car Supplement.
Open the car tax calculatorWhere these figures come from
- Vehicle tax rates: GOV.UK vehicle tax rate tables, 2026/27, verified 2026-07-28. gov.uk/vehicle-tax-rate-tables. Every rate on this page is read from the same source file the calculator uses, so the two cannot disagree.
- Average age of a licensed car: Department for Transport vehicle licensing statistics, end of 2025.
- MOT fees and first-test ages: DVSA for Great Britain, DVA for Northern Ireland. The Great Britain class 4 figure is a statutory maximum, so a garage may charge less than it. No MOT fee carries VAT.
This page explains how the rules work. It is not advice on a specific vehicle: for what a particular car is taxed at, check the V5C and the DVLA vehicle enquiry service.