What it costs to run a used car in the UK — the full picture
Add up the individual costs — insurance, fuel, tax, MOT and servicing — and running an ordinary used petrol or diesel car in the UK comes to roughly £2,500 a year at the modest end, for someone doing low mileage in a cheap-to-insure car. It climbs towards £5,000 or more for higher mileage, a pricier insurance profile, or a car that needs more done to it. That's a wide range on purpose: the categories below show you why, and which ones move the most for your situation.
Why a range rather than one tidy headline number? Because there's no single, currently-published "cost of motoring" index that gives a clean, trustworthy figure any more — the well-known ones you'll see quoted elsewhere either haven't been updated in years or trace back to pages that no longer exist. So rather than hand you one unsourced "£X,XXX a year" number, this guide builds the picture from the individual costs that make it up, each one checked against a named, dated source: insurance, fuel, tax, MOT, servicing, depreciation and warranty.
Here's the whole picture at a glance, each figure sourced below:
| Cost | Typical range | Source |
|---|---|---|
| Insurance (comprehensive) | ~£560 a year on average | ABI, Q1 2026 |
| Fuel (petrol/diesel) | roughly £1,180–£2,420 a year, depending on mileage | DESNZ weekly road fuel prices (gov.uk) |
| Road tax (VED) | £200 a year standard rate (most cars 2017+) | gov.uk |
| MOT | up to £54.85 a year | gov.uk |
| Servicing/maintenance | roughly £150–£400+ a year, unevenly | current garage-price guides (hedged — see below) |
| Depreciation | your biggest cost, but too variable to headline here | our depreciation guide |
Six categories, each covered properly below, then a section on how they shift as a car gets older, and how to check what a specific car you're looking at will actually cost — rather than what the "average" car costs.
Insurance costs for a used car
Insurance is usually the second-biggest running cost after fuel, and often the most surprising one to a first-time or returning buyer, because it isn't really about the car's price — it's about risk.
That £560 average held broadly stable on the previous quarter, per the ABI's own reporting, though it moves every quarter — insurers' claims costs (repair bills in particular) are a big driver of where it goes next. Treat it as a national baseline, not a quote for any specific car or driver.
What actually moves the price
The average hides enormous variation. What actually sets your premium:
- Insurance group or risk rating. Cars registered before August 2024 are rated 1–50 under the Group Rating system, administered by Thatcham Research on behalf of insurers on repair cost, parts prices, performance and security. Newer cars are scored 1–99 under the replacement Vehicle Risk Rating. Either way, a higher number means a pricier premium, whatever the car's age.
- The car's age and value. Older, cheaper cars are generally cheaper to insure (less to pay out if it's written off), but very old cars can see this offset by scarcer parts.
- Your driver profile. Age, address, claims and conviction history, annual mileage and how the car's used (commuting vs social only) all move the number more than the car itself usually does.
- Cover level. Comprehensive is now typically cheaper than third-party-only for most drivers, because third-party-only tends to attract higher-risk applicants — check both when you quote.
Typical premium ranges by rough car category
As a rough steer rather than a quote: a small, low-insurance-group used car — think a Ford Fiesta or Volkswagen Polo-sized runaround — commonly comes in under the £560 average for an experienced, low-risk driver. A mid-size family car sits closer to it. Anything in a high insurance group — bigger engines, performance trims, premium marques — routinely costs meaningfully more, sometimes by hundreds of pounds a year, regardless of the car's age. We don't have a dedicated guide to insurance groups yet, so treat all of that as a starting point and always get a real quote before you commit to buying a specific car.
Fuel and running costs: petrol, diesel and electric
Fuel is usually the single biggest line item, and it's also the most volatile — pump prices move week to week.
At the time of writing, DESNZ's weekly road fuel prices — published under the CMA Road Fuel Prices Scheme for the week commencing 3 August 2026 — put the UK average at roughly 159.9p a litre for unleaded petrol and 179.2p a litre for diesel — both have risen sharply in the past fortnight on the back of higher oil prices, which is a reminder that any pump-price figure in an article like this is a snapshot, not a fixed cost. Check DESNZ's live weekly figures before you budget seriously.
Typical annual fuel spend by mileage
Using those pump prices and a reasonably efficient family car — say 45mpg for petrol, 55mpg for diesel, both plausible for a modern mid-size car — the maths works out roughly like this:
| Annual mileage | Petrol (≈45mpg) | Diesel (≈55mpg) |
|---|---|---|
| 8,000 miles | ~£1,290 | ~£1,185 |
| 12,000 miles | ~£1,940 | ~£1,780 |
| 15,000 miles | ~£2,420 | ~£2,220 |
These are illustrative, built from today's pump prices and a stated mpg assumption — your actual mpg (and therefore cost) depends heavily on the specific car, your driving style and how much of your mileage is motorway versus town. A genuinely thirsty SUV or a stop-start city commute can easily push the real figure well above these numbers.
Electric vs petrol/diesel running-cost comparison
For electric cars, the comparison depends heavily on where you charge. Zap-Map's Price Index put the UK weighted-average public charging price in June 2026 at 54p/kWh on standard/fast chargers and 79p/kWh on rapid and ultra-rapid ones — Zap-Map's own figures translate that to roughly 16p and 24p per mile respectively on typical EV efficiency.
Charging at home is a different story. Ofgem's domestic price cap for July–September 2026 puts the average Direct-Debit electricity rate at 26.11p/kWh — using the same efficiency assumption Zap-Map applies to its public-charging figures, that works out at somewhere around 7–8p a mile. That's well under half the petrol and diesel figures above, and cheaper still on a dedicated off-peak EV tariff. Public rapid charging, on the other hand, can end up costing more per mile than driving a diesel. The home-versus-public gap for EVs is genuinely that wide, so where you'll actually charge matters more than which fuel type you pick.
Whatever you drive, our free car check includes a running-costs estimator that factors in insurance, maintenance, fuel and emissions-zone charges for a specific vehicle — a better starting point than any of the averages on this page once you've got a real car in mind.
MOT and road tax costs
We cover MOT and road tax in full in their own guide, so here's just the headline cost.
The MOT test fee is capped at £54.85 for a standard car (Class 4) — garages can charge less, and many do, but they can't legally charge more. It's due annually once a car passes three years old.
Road tax (VED) for most cars registered from April 2017 onwards settles at a flat standard rate of £200 a year from the second year of registration, whatever the fuel type (electric cars now pay it too). Older cars use different systems based on CO2 bands or engine size, and there's an extra "expensive car supplement" on cars that had a list price over £40,000 (£50,000 for electric) when new. Rates are set every April and can change at a Budget.
Tax does not transfer when you buy a used car. You have to tax it in your own name before you drive it away, and you need a valid MOT to do that. All of this, including the full VED band tables, is covered in our guide to MOT, road tax and staying legal — no point duplicating it here.
Before you agree a price on any used car, it's worth checking its actual tax and MOT status rather than taking a seller's word for it.
Servicing and maintenance — budgeting for the unavoidable stuff
This is the category where "the average car costs £X a year" claims get shakiest. There's no single authoritative UK trade-body index for servicing costs — what you'll find instead is a patchwork of garage-chain and comparison-site price guides that don't always agree, and some visibly go stale (one well-known guide was still quoting 2021 pricing in a page dated 2026).
Routine servicing costs
Taking current (2026) garage-price guides as a rough steer rather than a settled figure, an interim service commonly runs £140–£170, a full service £170–£300 (more for larger or premium cars, sometimes £400+), and a major service £230–£400+. Dealer servicing is typically 25–40% pricier than an independent garage doing the same job. Treat these as ballpark ranges to sanity-check a quote against, not a verified national average — get quotes from a couple of local garages for the specific car you're looking at.
What a car's service history tells you about future costs
A full, itemised service history — invoices, not just stamps in a book — is one of the best signals of what a used car will cost you next, because it shows what's already been replaced (cambelts, clutches, brakes) and what's coming due. A gap in the history, or a car that's clearly been serviced to the bare legal minimum, is a reason to budget more for the unknown, not less.
We've built a dedicated guide to reading a service history properly — what "good" looks like, and what gaps should make you nervous.
Depreciation — the cost you don't write a cheque for
Depreciation is, by most reckonings, the single biggest cost of owning a car — bigger than fuel, bigger than insurance — but it's also the one that doesn't show up on a bank statement, which is exactly why buyers underweight it.
The broad shape is well established: used cars lose value fastest in their first few years, then more slowly as they get older. How fast varies hugely by make, model, mileage and condition — a popular, well-specced car in demand holds its value far better than a niche or unfashionable one.
The precise numbers you'll see quoted for "typical" depreciation vary wildly between sources, and they're easy to misapply to one specific car. Rather than state a percentage here that might not hold for the car you're looking at, our dedicated guide to depreciation covers the actual figures and what drives them.
What matters for a used-car buyer specifically: buy a car that's already a few years old and the worst of the drop happened on someone else's watch. That's one of the strongest arguments for buying used at all. But the car still keeps losing value from here, so it's a real ongoing cost, not just something that happened before you owned it.
Warranty options — what's covered, what isn't
A warranty doesn't reduce your running costs directly, but it changes who pays when something goes wrong — which is the whole point of budgeting for running costs in the first place.
Manufacturer warranty transfer on a used car
Most new cars in the UK come with a manufacturer warranty of around three years, often up to a mileage limit such as 60,000 miles, though this varies a lot by brand — some manufacturers now offer five, seven or even longer. If you're buying a used car that's still within its original warranty period, that cover generally transfers to you as the next owner, but the remaining time and mileage (whichever runs out first) is all you get — it doesn't reset. Check the exact terms for the specific make, because they differ.
Third-party/extended warranty — what it typically covers
Once the manufacturer warranty has run out, a third-party or dealer extended warranty is an optional purchase that typically covers mechanical and electrical failures (not routine wear items like tyres, brake pads or servicing) for a set period or mileage. Cover levels vary enormously between providers, so what's actually included — and excluded — matters more than the headline price.
Our full guide to used-car warranty options covers what's typically covered, what isn't, and how to weigh the cost against the risk.
How running costs change as a car gets older, and how to check a specific car before you buy
The general pattern is intuitive even without hard numbers. A newer used car tends to cost less in unplanned repairs, but more in depreciation and often insurance. An older car has usually shed most of its depreciation, but it's statistically more likely to need parts replacing, and can drift into higher-value repairs — suspension, electrics, emissions equipment — as components reach the end of their design life.
We've built a dedicated guide to how faults typically cluster by a car's age. For now, treat "older = cheaper to buy, potentially pricier to keep" as the honest rule of thumb rather than a guarantee either way.
None of the averages in this guide tell you what one specific car will cost you. That's the gap our free car check is built to close: enter a number plate and it gives a detailed running-cost estimate for that vehicle — factoring in insurance, maintenance, fuel and any emissions-zone charges it's liable for — alongside its MOT and tax history and a wider vehicle-history timeline. Financial and write-off status sit behind our paid checks, but the running-costs estimator itself is part of the free check.
Worth flagging honestly: the free check's own illustrative averages (around £3,000 a year total — roughly £1,400 fuel, £500 insurance, £300 maintenance) sit lower than some of the external benchmarks cited in this guide, insurance especially. That's expected, not a contradiction: the product's figures are a starting baseline before you plug in a real vehicle and postcode, while the ABI figure above is a national average across all comprehensive policies. Run the actual number plate and your own details for a figure that means something for your situation, rather than comparing either average directly to the other.
FAQs
How much does it cost to run a used car in the UK per year?
There's no single trustworthy headline figure any more — treat any bare "£X,XXX a year" claim you see elsewhere with caution. Build it from the sourced categories in this guide instead: roughly £560 a year for insurance (ABI, Q1 2026), £1,180–£2,420 for fuel depending on mileage, £200 for tax, up to £54.85 for the MOT, and a variable amount for servicing — typically somewhere in the low thousands overall, before depreciation.
What's the single biggest ongoing cost of owning a used car?
Depreciation is usually the largest cost overall, though it's not one you pay directly. Of the costs you actually write a cheque for, fuel and insurance are typically the two biggest, in roughly that order for most mileage levels.
Is it always cheaper to buy an older car if you're trying to keep running costs down?
Not always. An older car has usually shed most of its depreciation and can be cheaper to insure, but it's statistically more likely to need repairs, and parts or specialist work can push individual bills higher. A well-documented mid-age car with a full service history is often the sweet spot, rather than the oldest car you can find.
Does a used-car warranty cover routine servicing, or only breakdowns?
Typically only breakdowns and mechanical or electrical failures — not routine wear items like tyres, brake pads, or scheduled servicing. Cover varies significantly by provider, so check exactly what's included before relying on it.
How can I estimate the running costs of a specific used car before I buy it?
Run its number plate through our free car check, which includes a running-costs estimator alongside the car's MOT and tax history — a far better starting point than any national average once you've got a specific car in mind.
Do used electric cars cost less to run than petrol or diesel ones?
Usually, if you can charge mainly at home — home charging works out at roughly half the typical petrol or diesel pence-per-mile cost on current prices, and less on a cheap off-peak tariff. Relying mainly on public rapid charging narrows or even reverses that gap, since rapid-charging rates (up to 79p/kWh, per Zap-Map) can cost more per mile than driving a diesel.