Is 2026 a Good Time to Buy a Used Car? Prices, Supply and the Best Time to Buy

Fuel bills keep climbing and used electric cars are more popular than ever, yet the price of a second hand car is drifting down rather than up. Motor fuel has become the biggest driver of rising living costs, used EV sales are growing at their fastest pace in more than two years, and official figures show used car prices slipping. 

If you have a car to replace, those mixed signals make it hard to know whether to buy now or keep waiting.

So, is 2026 a good time to buy a used car? For most UK drivers, yes. The catch is that the right move depends far more on the age and type of car you want than on the headline figures. A three year old family hatchback, a nearly new SUV and a ten year old runabout are each priced very differently this year. 

Rising fuel bills and a new motoring tax are also changing what good value looks like. This guide explains where prices stand, why supply is so uneven and how to time your purchase so the calendar works in your favour.

Are Used Car Prices Falling in 2026?

After the sharp rises of the pandemic years, the market has settled into a calmer pattern. Knowing what that pattern looks like helps you judge whether the car in front of you is fairly priced.

What the Official Figures Show

Used car prices have started to ease, although the change is far from a market-wide crash. According to Auto Trader’s September 2026 Retail Price Index, the average advertised used car price was £17,299. Like-for-like prices were 1% lower than a year earlier and 0.8% below August.

Over the same period, overall CPI inflation, the main measure of how fast everyday prices are rising, was 3.1%. This contrasts with the wider cost of living. The ONS reported annual CPI inflation of 3.1% in August 2026. Used car asking prices are therefore easing while the overall price level continues to rise, although the change varies by vehicle age and fuel type.

That doesn’t mean used cars are cheap. Many vehicles still cost well above their prices from before the pandemic, so holding out for 2019 prices is unlikely to pay off. Used car prices in 2026 are easing gently rather than tumbling.

Why a Steady Market Still Helps Buyers

Gently easing prices take the pressure off. You can shortlist a car, sort out finance and book a viewing over a couple of weeks without worrying that the price will jump in the meantime.

There is also plenty of choice. Used car sales in the second quarter were the strongest for that time of year since 2021. With so many cars changing hands, you can compare similar examples and judge a fair price before making an offer.

Why Used Car Supply Depends on the Age of the Car

National averages hide a lot. Split the UK used car market by age and three very different pictures appear, so the answer to is 2026 a good time to buy a used car depends on which age group you are shopping in.

Three to Five Year Old Cars Are in Short Supply

Cars of this age usually offer the best mix of value and modern features, because the first owner has already absorbed the biggest drop in value. The shortage goes back to the pandemic. Department for Transport figures show 2.1 million vehicles were registered for the first time in Great Britain in 2020, 27% fewer than in 2019.

Cars that were never sold new back then cannot appear on the used market now, which is why this age group is so thin. Company fleets are also keeping cars on longer contracts, which slows the flow of three and four year old cars even further. Reduced new car sales during the pandemic continue to affect the choice of certain three-to-five-year-old models.

However, prices are not rising across the board. Auto Trader recorded a 1% annual fall in advertised prices for cars aged three to five years in September 2026, so it is worth comparing several examples before accepting a dealer’s asking price.

Are Nearly New Cars Better Value in 2026?

A nearly new car is usually under two years old. Many come back at the end of a lease, some have been used as dealer demonstrators, and others are traded in early. Supply of cars this young remains strong. When dealers have plenty of similar cars, they compete harder on price, so nearly new cars are where you will usually find the most room to negotiate. Many also still have part of the manufacturer warranty, and that cover normally stays with the car when it is sold.

Older Cars Are in High Demand

At the budget end, the challenge is different, because drivers are holding on to their cars for longer. The average car on UK roads is older than it was five years ago. When owners keep their cars longer, fewer good older examples come up for sale, while demand for affordable transport stays strong. That is why cars around ten to fifteen years old have seen the strongest price growth of any age group.

An older car can still be a sensible buy. At current prices, though, it should come with a full service history and a clean MOT record.

How Fuel Costs and Tax Changes Affect What You Should Buy

What a car costs to run now matters as much as what you pay for it. Three changes stand out for anyone buying this autumn.

Diesel and Petrol Bills Are Climbing

Fuel prices have risen sharply since conflict broke out in the Middle East earlier this year. By August, petrol was at its highest price since late 2022, and in late September diesel set a new national record. Further pressure could come from fuel duty.

Under the government’s published schedule, the temporary 5p-per-litre reduction is being reversed in stages, with increases of 1p in September 2026, 2p in December and another 2p in March 2027.

Diesel still suits drivers who cover long motorway distances, because diesel engines are most efficient on longer runs. For shorter local journeys, a petrol or hybrid car is usually cheaper and less trouble. Repeated short trips can clog the diesel particulate filter, the part that traps soot from the exhaust. Choice is shrinking too, because fewer diesels are coming through from the new car market.

Used Electric Cars Are Holding Their Value Better

High fuel prices are pushing more drivers towards electric. Used EVs now account for a much bigger share of used car sales than they did a year ago, and that demand is supporting their values. If you have been waiting for used electric car prices to keep falling, the biggest drops may already be behind us.

Before buying a used EV, ask for a battery health report. It shows how much of its original capacity the battery still holds. Check that the car’s charging speed and real world range suit your daily driving. Being able to charge at home makes the biggest difference to running costs, because public charging is far more expensive than charging at home.

What the 2028 Pay Per Mile Tax Means for Used Buyers

The government plans to introduce Electric Vehicle Excise Duty (eVED) on 1 April 2028. Under the published policy, electric cars will be charged 3p per mile and plug-in hybrids 1.5p per mile, on top of their usual vehicle tax. The scheme is not in operation yet, so buyers should treat these as future ownership costs rather than charges they currently pay. eVED will be charged on top of standard road tax and will rise with inflation in later years.

There is one detail used buyers need to watch. If miles have been prepaid, that credit transfers with the car, and sellers can clear any shortfall with a top up payment before the sale. The DVLA’s vehicle enquiry service will show how many miles have been paid for, so buyers can compare that figure with the odometer. The legislation has not yet been formally introduced, so some details could still change.

When Is the Best Time to Buy a Used Car in the UK?

Timing won’t turn an expensive car into a cheap one, but it can decide how much bargaining power you have. The year revolves around the number plate changes in March and September. When people buy new cars, they usually trade in their old ones as a part exchange, and those cars reach dealer forecourts a few weeks later.

Your Month by Month Used Car Buying Calendar

Each part of the year changes the balance between buyers and sellers in a different way. The table below shows what usually happens, so you can plan your search around the best time to buy a used car in the UK.

Months	What usually happens	What it means for you
January and February	Fewest buyers after Christmas	Softer asking prices and more time with sellers
March	New plate month, dealers focused on new cars	Trade ins have not reached forecourts yet
April and May	March part exchange cars go on sale	Wider choice of one to three year old cars
June to August	Peak demand from holidays and better weather	Least room to negotiate on mainstream models
September	Second new plate month	Stock starts building as trade ins arrive
October and November	September part exchanges arrive in volume	Strong choice as dealers clear stock before winter
December	Fewer buyers in the run up to Christmas	Motivated sellers and room for offers

This year is following the usual pattern. September brought the first monthly fall in used car prices of 2026, as plate change trade ins pushed stock levels up. If you are shopping in October or November, you are in one of the better windows of the year.

How to Get a Better Deal on a Used Car

A few smaller patterns can sharpen your timing:

• Body styles: Convertibles are usually cheapest in January, while SUVs and 4x4s are often better value in summer.
• End of quarter: Dealers chase quarterly sales targets, which gives you extra leverage in the last days of March, June, September and December.
• Older adverts: Cars that have been listed for longer usually leave more room for an offer than fresh adverts.
• Your trade in: Get your current car valued before visiting, and agree the part exchange price separately from the purchase so you can see exactly what you are paying.

What Should You Check Before Buying a Used Car?

Buying in the right month might save a few hundred pounds, but buying the wrong car can cost thousands. These checks go further than a quick look under the bonnet:

• MOT advisories: The free GOV.UK MOT history check shows every past test result, including advisories. These are minor faults the tester spotted that may need fixing soon. Advisories about tyres, brakes or corrosion are a preview of your next bills and a fair reason to negotiate.
• Mileage pattern: Compare the mileage recorded at each MOT. A sudden drop can point to clocking, which means illegally winding back the odometer. A long gap may mean the car sat unused, which can cause its own problems.
• Open recalls: The GOV.UK vehicle recall checker confirms whether the car has any outstanding manufacturer safety recalls.
• Clean air compliance: If you drive into London’s ULEZ, an English Clean Air Zone or a Scottish Low Emission Zone, check the car meets the rules. Petrol cars need to meet the Euro 4 emissions standard and diesels need Euro 6. Most petrol cars from 2006 and most diesels from late 2015 comply, but always confirm using the registration number on the official checker.
• Finance and write off history: A paid history check shows whether the car still has finance owed on it, has been reported stolen or has been written off by an insurer. Outstanding finance can create an ownership dispute, so ask for evidence that any agreement has been settled before paying. Some private buyers who purchase a car in good faith may have legal protection, but it is much safer to resolve the issue before the sale.
• Insurance group: Get a quote before you commit, because two similar cars can sit in very different insurance groups.

Dealer or Private Seller: Know Your Rights

Where you buy decides what you can do if something goes wrong. A dealer sale is covered by the Consumer Rights Act 2015. The car must be of satisfactory quality, fit for purpose and as described, and you have a short term right to reject a faulty car within 30 days. 

A private sale is often cheaper, but your protection is much narrower: the car mainly has to match how it was described, and the seller must have the right to sell it. Because of that, a thorough inspection matters even more when buying privately.

Look at the Total Cost, Not Just the Price

A low price can hide high running costs. Add up insurance, servicing, road tax and fuel alongside any used car finance repayments. When comparing finance deals, focus on the APR, the yearly interest rate including fees, and the total amount payable. A longer finance term can make the monthly payment look affordable while costing you more overall.

So, Is 2026 a Good Time to Buy a Used Car?

If you need a car, there is little point waiting for a price crash that shows no sign of arriving. Is 2026 a good time to buy a used car? For buyers who do their homework, it is. Official figures show prices easing, nearly new stock is plentiful, and the months from the September plate change through to early spring give you the best chance of a fair deal. 

The biggest savings come from choosing the right age of car, checking its history thoroughly and working out what it will really cost to run. For more practical buying guides, motoring advice and the latest UK car news, keep reading Auto Square and make your next purchase with confidence.