The True Cost of Running a Car in the UK in 2026

Most people think they know what their car costs: roughly what they spend on fuel each month, plus the insurance renewal. But that is a fraction of the real figure. Once you add road tax, servicing, the MOT, tyres, repairs, and above all depreciation, the true cost of keeping a car on the road in the UK is far higher than the visible monthly spend.

This guide breaks down every cost, shows which ones matter most, and gives you a method to work out your own annual figure for 2026.

The seven costs of running a car

A complete picture of car running costs includes seven items. They split into two groups: cash costs you pay as you go, and the hidden cost of depreciation that you only feel when you sell.

1. Fuel or charging
2. Insurance
3. Road tax (VED)
4. Servicing
5. MOT
6. Tyres and repairs
7. Depreciation (and finance, if you borrowed to buy)

Looking only at the first two is how people badly underestimate what a car costs.

1. Fuel or charging

For a petrol or diesel car, fuel is the most visible cost and scales directly with your mileage. A higher-mileage driver in a thirsty car can easily spend over a thousand pounds a year on fuel alone. An electric car charged at home is far cheaper per mile, often around 7p a mile at the approximate Q2 2026 capped electricity rate of around 24.67p per kWh for an efficient car, and less on a cheap overnight tariff. Public rapid charging, though, can cost as much per mile as petrol.

Your fuel cost is the easiest to estimate: annual miles divided by miles per gallon (or miles per kWh), multiplied by the price of fuel or electricity.

2. Insurance

Insurance is a major fixed cost that you pay whether you drive or not. It varies enormously with your age, location, the car, your no-claims history and your annual mileage. Younger drivers and higher-value or higher-performance cars cost far more to insure. You can reduce it by shopping around at renewal, increasing your voluntary excess, and choosing a car in a lower insurance group.

3. Road tax (VED)

For most cars beyond their first year, road tax is the standard rate of £200 a year in 2026. Cars with a list price over £40,000 (or £50,000 for electric cars) also pay the expensive car supplement of £440 a year for years two to six. For a typical car, road tax is a modest line in the total, well below fuel, insurance and depreciation. Electric cars now pay road tax too, following the end of the exemption in April 2025, though their first-year rate is low at around £10.

4. Servicing

A car needs regular servicing to stay reliable and to protect its warranty and resale value. Petrol and diesel cars have more to service: oil and filter changes, spark plugs, belts and exhaust components over time. Electric cars have fewer moving parts and generally cost less to service. Budget for at least one service a year, more if you cover high mileage.

5. MOT

Once a car is three years old it needs an annual MOT test. The test itself has a modest maximum fee, but the real cost is whatever work the car needs to pass. A clean MOT is cheap; a failed one can mean a bill for brakes, tyres, suspension or emissions work. Treat the MOT as a fixed small cost plus an unpredictable repair allowance.

6. Tyres and repairs

Tyres wear out and must be replaced, and the cost depends on the car and how you drive. Performance cars and heavier electric cars can wear tyres faster. Beyond tyres, every car eventually needs repairs: brakes, batteries, clutches, and the many small things that fail with age. Older cars cost less to buy but more to keep running. A sensible budget sets aside a few hundred pounds a year for tyres and repairs, rising as the car ages.

7. Depreciation: the biggest cost of all

Here is the cost almost everyone ignores, and it is usually the largest. Depreciation is the value your car loses while you own it. A car bought for £20,000 and sold for £10,000 four years later has cost you £10,000 in depreciation, around £2,500 a year, often more than fuel and insurance combined.

You never write a cheque for depreciation, which is why it stays invisible. But it is real money, and it is the reason a cheap-to-fuel car can still be expensive to own if it loses value quickly. New cars depreciate fastest in their early years, which is why buying a car a few years old can be a way to cut your true cost: someone else has absorbed the steepest drop.

If you bought on finance, the interest you pay is an additional cost on top of depreciation, and the two together often dominate the total cost of ownership.

Putting it together: an illustrative annual cost

For a typical mid-range petrol car doing moderate mileage, an illustrative annual breakdown might look like this:

These figures are illustrative and will vary widely with your car, mileage and circumstances. The point is the shape: depreciation is the largest single item, fuel and insurance are next, and the maintenance costs, while real, are smaller. Add finance interest and the total climbs further.

How to work out your own figure

To get an honest number for your car:

1. Estimate annual fuel or charging cost from your mileage and efficiency.
2. Add your actual insurance premium.
3. Add road tax (£200 standard, plus £440 supplement if your car qualifies).
4. Add a realistic annual figure for servicing, MOT, tyres and repairs.
5. Estimate depreciation: take the price you paid (or current value), estimate what the car will be worth when you sell, and divide the difference by the number of years you will keep it.
6. Add any finance interest.

The total is your true annual cost. It is almost always higher than the monthly fuel-and-insurance number people carry in their heads.

How to cut the cost

The biggest savings come from the biggest costs:

• Reduce depreciation by buying a slightly older car and keeping it longer.
• Cut fuel by choosing an efficient car and driving smoothly, or going electric if you can charge at home.
• Shop around on insurance and raise your voluntary excess.
• Maintain the car to avoid expensive failures.
• Avoid the most expensive finance.

The bottom line

Running a car costs far more than fuel and insurance. Road tax, servicing, MOT, tyres, repairs and, above all, depreciation push the true annual cost of a typical car well past £2,000 and often toward £5,000 once depreciation and finance are counted. Budget for the full picture, focus your savings on the largest costs, and you will not be caught out by the real price of motoring.

To estimate the full running cost of your car, use the car running cost calculator.