Car depreciation explained: your car's silent cost

Car depreciation: what the word actually covers

A car is a depreciating asset, not an investment. Its value falls because the market always has a supply of newer, cleaner, better-equipped alternatives, and because a used car buyer is paying for transport rather than for the pleasure of being first. The moment a car is registered it stops being new stock and starts competing with every other used car of the same age, size and specification.

That is why the loss is measured as a percentage of the price you paid rather than as a fixed sum. Fifteen per cent of a 30,000 euro car is 4,500 euro; fifteen per cent of a 20,000 euro car is 3,000 euro. The percentage is similar across the market, but the cash is proportional to what you spend, which is the single most useful thing to understand before you sign anything.

Nothing on this page is a resale listing. Our database holds official fuel, energy and CO2 figures only, so the depreciation figures here are the verified market range applied to prices you supply.

The first-year cliff: 15-25% before the novelty wears off

A typical new car loses roughly 15-25% of its value in the first year. On a 30,000 euro car that is somewhere between 4,500 and 7,500 euro gone in twelve months, and on a 40,000 euro car it is 6,000 to 10,000 euro. These are approximate figures for general market behaviour rather than a promise about any individual model, and premium or niche cars often sit at the harsher end.

The cliff exists because the first owner is buying something no one else has owned. Once that car is registered, the next buyer is choosing between it and hundreds of other one-year-old cars, and the only way it wins is on price. You are not paying for a defect. You are paying for the premium of being first, and that premium evaporates the moment you take delivery.

Buying at one or two years old means somebody else has already absorbed the steepest part of the drop, while the car is still close to new in condition.

Car depreciation in money: the first year at three price points

Because depreciation is a percentage of the price you pay, the same headline range produces very different cash losses depending on what you buy. The table below shows the loss at the bottom, middle and top of the verified range for three purchase prices, together with what the car is still worth after year one and after five years.

Read the table as a budget line, not a forecast. If you cannot comfortably absorb the first-year loss shown for a car you are considering, the honest answer is that the car is too expensive for you, whatever the monthly payment looks like. Use the same arithmetic on the price you are actually being quoted rather than on the sticker price alone.

Car value loss per year: the five-year picture

Over five years a typical car loses about 50% of what it cost. A 30,000 euro car is worth roughly 15,000 euro at that point; a 40,000 euro car is worth about 20,000 euro. Set against a year-one loss of 15-25%, the five-year total is larger but not dramatically so, which tells you the steepest part of the curve is right at the start.

The shape matters more than the exact figures. Year one does most of the damage, and every year after that the loss continues on a smaller remaining value. That is why a three-year-old car can still be worth roughly half its original price while a ten-year-old car of the same model is worth a small fraction of it. Age never stops costing you money, but it stops costing you quite so much money per year.

The 50% five-year figure and the 15-25% first-year range are approximate market behaviour, not a guarantee for any single model.

Depreciation is charged on top of every other cost you pay

The loss does not replace your other bills, it sits underneath them. In the UK the fixed costs are modest by comparison: the MOT test is capped at 54.85 pounds and our reference band of 111-130 g/km CO2 sits at roughly 190 pounds a year of vehicle excise duty. Those are GOV.UK figures used as reference points, and they are the same for a frugal car and a thirsty one in the same band.

That last point is the useful one. Two cars in the 111-130 g/km band pay the same road tax and face the same MOT cap, so any difference in what they cost to run comes purely from how much energy they use. Depreciation, by contrast, is driven by the price of the car, the market's appetite for it and the condition you keep it in. Those are the levers you can actually influence.

The data behind this guide

Every running-cost figure in this post is computed from the official UK Vehicle Certification Agency type-approval records we hold: 17,141 rows across three VCA datasets, made up of 694 current records, 7,522 from a wider set and 8,925 from the historical archive. Those rows carry certified combined fuel consumption in litres per 100 km, electric consumption in kWh per 100 km and CO2 in grams per kilometre.

We priced every row at the verified UK market constants from the EU Oil Bulletin week of 31 August 2026 and Eurostat household electricity data: petrol at 1.64 pounds per litre, diesel at 1.86 and electricity at 0.263 pounds per kWh, over 12,000 miles a year, which is 19,312 km. Annual energy cost is consumption multiplied by distance multiplied by price, which gives a consistent efficiency index rather than a prediction of your own bill.

Mileage, driving style, load, air conditioning, temperature and tyre pressure all shift real-world consumption away from the certified figure. Treat the ranking as a like-for-like comparison, not as a forecast.

Data quality: nine impossible figures and two mis-tagged Range Rovers

Before ranking anything we clean the source data. Nine rows fell outside the plausible boundaries we set at 2.5 to 25.0 litres per 100 km and 5.0 to 40.0 kWh per 100 km. Three are obvious artefacts: a 2022 Mazda CX-60 petrol at 141.2 L/100km, a 2007 Kia Sorento diesel at 35.8 and a 2026 Toyota Land Cruiser hybrid at 26.2. The other six are plug-in hybrids recorded at test-cycle values between 1.1 and 2.1 L/100km.

We also removed two Land Rover Range Rover rows tagged simply as hybrids, a 2018 Range Rover and a 2018 Range Rover Sport, both listed at 2.8 L/100km and 64 g/km CO2. Those are plug-in test figures mis-tagged as conventional hybrid, and they assume a fully charged battery on every trip. They are not achievable in real use and they would have pulled the whole hybrid average down. After cleaning, 17,130 rows remain for analysis.

The lowest honest conventional hybrid row in the cleaned data is a 2016 Toyota Prius at 3.0 L/100km and 70 g/km CO2, followed closely by the Toyota Yaris at 3.3 L/100km.

Certified running cost by CO2 band

Grouping the cleaned data by CO2 band shows how tightly the official figures cluster once you control for emissions. The cheapest annual energy cost in a band and the dearest can differ by a few hundred pounds or, in the lowest bands, by several thousand, and the spread grows as the cars get heavier and thirstier.

This is the closest thing our data holds to a value ranking. It does not tell you what any car is worth after five years, because the database contains no prices at all. What it does tell you is exactly how much energy a given certified car will use, which is the half of ownership that depreciation is measured against.

The 111-130 g/km band: one tax band, many running costs

The band that matters most for our reference road-tax figure is 111-130 g/km, and it is deep: 2,545 certified rows covering 1,184 distinct models from 66 makes. The cheapest row in the band costs 1,362 pounds a year in energy at UK prices and the dearest costs 2,217 pounds, a spread of 855 pounds a year, or 4,275 pounds over five years.

Read that spread with care, because the cheapest rows in the band are plug-in hybrids whose official figures assume a full battery on every trip. A 2013 Mercedes-Benz E 300 BlueTEC Hybrid at 4.3 L/100km and a 2022 Kia Ceed hybrid at 4.4 L/100km sit at the top of the table precisely because the test cycle flatters them. What the band does prove is that emissions certification is no guide at all to running cost: identical tax treatment, wildly different energy bills.

A car can be cheap for the planet and expensive at the pump, or the reverse. Band alone decides the tax, not the fuel bill.

Same band, honest comparison: 2,456 conventional cars

Strip out the plug-in hybrids and the true spread inside the 111-130 g/km band narrows to 523 pounds a year. The cheapest conventional cars are a 2014 Volkswagen Golf and a 2014 Chevrolet Aveo, both certified at 4.7 L/100km and 111-112 g/km CO2, costing 1,489 pounds a year. The dearest conventional car in the band is a 2021 Mercedes-Benz C-Class Coupe diesel at 5.6 L/100km and 130 g/km, costing 2,012 pounds a year.

That is 2,615 pounds over five years for two cars that pay identical road tax, face identical MOT rules and sit in the same emissions band. Per mile the band runs from 12.4 pence to 16.8 pence. Diesel dominates the band numerically, with 1,400 rows against 966 petrol and 90 hybrid, and the median diesel is slightly cheaper to run than the median petrol because the certified figures for diesel are lower even after the higher pump price is applied.

How much of the depreciation hit a cheaper car offsets

Here is where the two halves of ownership meet. Depreciation is charged on the price you pay. Fuel is charged on how much energy the car uses. Buy the least thirsty conventional car in the band rather than the thirstiest and you recover 2,615 pounds of fuel over five years at 12,000 miles a year.

On a 20,000 euro car that fuel saving covers about 65% of a year-one loss of 20%, and about 87% of a year-one loss at the kinder end of the range. On a 40,000 euro car the same 2,615 pounds covers only about a third of the 20% loss, because the depreciation bill grew while the fuel bill did not. The lesson is not that cheap cars are free. It is that running cost is the part of ownership you can plan, and depreciation is the part that scales with the price you pay.

Depreciation percentages work in any currency, so the scale above is shown in euro; the fuel figures are UK type-approval data priced at verified UK pump and electricity rates. The comparison is the same either way.

Mileage: why how much you drive changes the maths

Every figure on this page assumes 12,000 miles a year. Drive far more and the fuel half of ownership grows in proportion, which makes the efficient car look better and the thirsty car look worse. Drive very little and energy costs shrink towards irrelevance, leaving depreciation as almost the entire cost of owning the car.

Mileage also feeds back into value. A car with unusually high mileage for its age is harder to sell and generally fetches less than a comparable low-mileage example, while a very low-mileage car of the same age attracts a premium from buyers who value the condition and the remaining life. Mileage is not a number we can put a figure on from type-approval data, but directionally, the more you drive, the more the cheaper-to-run car wins and the less the low-mileage premium matters.

• High annual mileage: fuel and energy dominate, efficiency matters most.
• Low annual mileage: depreciation dominates, buy the cheaper car instead of the efficient one.
• Very low mileage for the age: attracts a premium at resale, partly offsetting the loss.
• Very high mileage for the age: harder to sell and typically worth less than an average example.

Condition and service history: the cheapest value protection there is

You cannot stop depreciation, but you can avoid the extra loss that comes from a car buyers do not trust. A full service history, receipts for work done, and a clean record of ownership are the differences between a car that sells at the top of its condition bracket and one that sells at the bottom. Buyers pay for certainty, and paperwork is how certainty is proved.

The same logic applies to damage and modification. Accident damage recorded on a database follows the car for life and shows up at every future sale. Non-standard modifications narrow the pool of buyers. A smoky interior or missing service stamps do the same job more quietly. None of these changes the percentage the market applies to the model, but all of them move you within it.

• Keep every service invoice, not just the stamp in the book.
• Record any repairs, however small, with the receipt.
• Fix warning lights and faults before they become the buyer's negotiating tool.
• Avoid permanent modifications that narrow your buyer pool.
• Keep the interior clean and smoke-free; it is the first thing a buyer inspects.

Supply and demand: why depreciation is not a straight line

The percentage a car loses is not a law of physics; it is a market price. When new-car supply dries up, buyers who cannot get a new car bid for nearly-new used stock and used prices rise, which slows the rate of depreciation or even reverses it briefly. When supply returns and discounts reappear on new cars, used prices soften and the losses accelerate again.

This is why two owners of identical cars bought a year apart can report completely different depreciation experiences. It also means the smartest time to buy has less to do with the calendar than with how much used stock is chasing how many buyers. If the forecourts are full and dealers are discounting new cars, used prices are usually under pressure too, which is a buyer's market for anyone willing to buy at two or three years old.

Which cars hold their value best

Some cars resist depreciation far better than others, and the pattern is not random. Models with a reputation for reliability, inexpensive parts and a wide pool of potential buyers keep more of their value, because the used market is confident about what it is buying. Cars with a narrow appeal, a thirsty engine or an uncertain reliability record lose value faster, because the buyer pool is small and every seller is competing for the same handful of customers.

Specification matters too. Desirable trim, a sensible engine and a colour buyers actually want all help. The most expensive version of a mainstream model often loses a larger share than the entry version, because the extra equipment is worth less to a second owner than it cost new. Conversely, a hybrid or efficient diesel with strong demand from high-mileage buyers can hold value remarkably well for its age.

• Reliability reputation and cheap parts: broad buyer pool, slower losses.
• Sensible engine and desirable trim: easier to sell, better retained value.
• Strong used demand from high-mileage buyers: hybrids and efficient diesels.
• Large-displacement luxury, uncertain reliability, niche markets: fastest losses.
• Top-spec versions of mainstream cars: often lose the largest share.

Practical steps to limit the loss

You will not avoid depreciation, but you can choose how much of it you pay. Every step below reduces either the percentage the market applies to your car or the cash amount the percentage is charged on. None of them is clever, and all of them work.

1. Buy at one to two years old so the previous owner takes the first-year cliff.
2. Set a budget from the total five-year loss, not from the monthly payment.
3. Choose a model and spec with a wide used buyer pool rather than a narrow one.
4. Keep mileage realistic for your needs rather than artificially low.
5. Service on schedule with a full paper trail and fix faults early.
6. Avoid accident damage and permanent modifications that follow the car.
7. Sell or part-exchange before the car enters its steepest condition-related decline.

Run the same depreciation arithmetic on the two or three cars on your shortlist before you visit a dealer. The cheapest sticker price is rarely the cheapest car to own.

Selling and part-exchange: where the loss becomes real

Part-exchange is the easy route: the dealer takes the car, settles any finance and the whole transaction happens in one afternoon. You pay for that convenience, because the dealer has to price in the cost of preparing the car for resale and the profit it needs on the deal. A private sale usually returns more money, but you carry the advertising, the viewings, the test drives and the risk of a buyer who never completes.

Whichever route you choose, the depreciation has already happened and nothing in the negotiation changes it. What the negotiation changes is how much of the remaining value you recover. That is why the two useful preparations are a realistic idea of what your car is worth in the current market and a clear figure for what its replacement will lose in the next five years. Go in with both numbers and the deal is much simpler to judge.

1. Get an independent view of your car's current market value before you talk numbers.
2. Compare a part-exchange offer against the price of the same car bought privately, minus the work.
3. Clear finance or check the settlement figure before agreeing anything.
4. Present the service history at the meeting; it is worth money in the conversation.
5. Confirm the depreciation on the car you are buying, not just the price of it.

Cost per mile: the honest way to compare two cars

The cleanest single number in our data is cost per mile. Across all 17,130 cleaned rows the cheapest certified car costs 4.6 pence per mile of energy and the dearest costs 65.7 pence, with a median of 18.2 pence. The cheap end is entirely electric: a 2026 MINI Aceman at 4.6 pence, a 2026 Mercedes-Benz CLA Saloon at 5.2 pence, a 2026 Dacia Spring at 5.3 pence, a 2025 Fiat 500 at 5.6 pence and a 2026 Tesla Model 3 at 5.8 pence. The dear end is supercars and ageing V12s, with a Lamborghini Diablo at 575 g/km CO2 costing 65.5 pence per mile.

That is a spread of more than fourteen times between the cheapest and dearest cars in the same official dataset, which is far wider than the range of depreciation outcomes between ordinary cars. It is the strongest argument for treating efficiency as a value decision: on a high-mileage ownership pattern, the running-cost difference between two cars can outweigh the difference in what they lose in value, especially when both sit in the same tax band.

Cost per mile here is energy only, at 12,000 miles a year and verified UK prices. It excludes depreciation, insurance, servicing, tyres, road tax and the MOT fee.

Bringing it together: total cost, not sticker price

Depreciation is the largest line in most ownership budgets, but it is never the only one. The honest comparison adds the five-year depreciation on the price you would actually pay, the energy cost from the certified consumption figures, road tax, the MOT fee and your own quotes for insurance, servicing and tyres, then divides by the miles you expect to drive. Two cars that look 3,000 euro apart on the forecourt can be 6,000 euro apart over five years.

Run the depreciation arithmetic on the real purchase price, check the certified consumption of the exact version you are buying rather than the one in the brochure, and let the totals decide. The car that wins is not the cheapest to buy or the cheapest to run in isolation. It is the one whose five-year total is lowest for the way you actually drive.