Beyond the monthly payment: what you need to know before buying your next car

Buying a car is a major financial commitment but it’s not all about the upfront costs. 
 

Whether you’re financing a premium vehicle, moving to a hybrid or electric vehicle, or purchasing a used vehicle, it’s important that you look beyond that initial price tag. Why? Because insurance, servicing, fuel, tyre issues and unexpected repairs can all have a significant impact on the cost of ownership over time.

Understanding these hidden costs can help you budget more effectively, avoid unexpected expenses and help you make a more informed decision when choosing your next vehicle.
 

Insurance costs can add up quickly

Insurance is one of the biggest ongoing costs associated with owning a vehicle, and premiums can vary enormously depending on which car you choose.

Factors such as vehicle value, repair costs, engine size, postcode, annual mileage, and even where you keep your car overnight, can affect the price of cover. Premium and performance vehicles often come with higher insurance costs on the basis that replacement parts and specialist repairs are more expensive.

It’s also worth remembering that paying for insurance monthly can sometimes increase the total amount paid over the course of the year so it’s worth carefully checking the details with your provider.
 

Factoring in MOTs and repair bills

In the UK, vehicles over three years old usually require an annual MOT test to confirm they meet road safety and environmental standards.

Whilst the test itself is relatively affordable (you can check the current MOT cost on the gov.uk website) the repairs needed after a failed MOT can be more expensive.

Common reasons for MOT failures include:

• Worn tyres
• Faulty lights
• Brake issues
• Suspension problems
• Visibility issues, such as worn wiper blades or damage to the windscreen

Planning ahead for potential repair costs can help avoid financial surprises when your MOT comes around.
 

Servicing and routine maintenance

To keep your vehicle running safely and efficiently, you need to ensure you have routine servicing, but it’s easy to underestimate the cost when budgeting.

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The RAC calculates that unexpected repairs are costing drivers an average of around £700 per year.

*RAC Report on Motoring 2026

Many manufacturers recommend annual servicing or maintenance based on your mileage (for example, every 10,000 miles – this will vary according to whether you have an EV or vehicle with an internal combustion engine (ICE)). Depending on the make and model, the costs can vary considerably, especially for larger or higher-performance vehicles that need specialist parts or labour.

Alongside regular servicing, drivers should also budget for ongoing maintenance such as:

• Brake pads and discs
• Battery replacements
• Wheel alignment
• Suspension repairs
• Air filters and fluid changes
• Windscreen wipers

According to guidance from the RAC, maintenance and repair costs are an important part of overall vehicle running costs and can increase significantly as a vehicle ages.
 

Unexpected repairs 

Even well-maintained vehicles can develop unexpected faults.

Issues such as battery failure, electrical problems, damaged alloys or clutch repairs can lead to big bills with little warning. Modern vehicles with advanced technology and driver assistance systems can also be more expensive to repair than older models.

Setting aside a contingency fund for unexpected repairs can help reduce the financial pressure if problems arise unexpectedly.

While the amount will vary depending on the age, mileage and type of vehicle, many drivers find it helpful to look at their average annual maintenance and repair costs from previous years and build in additional flexibility. The amount required may well increase for older or higher performance vehicles but even setting aside a small amount might help make unexpected bills more manageable.
 

Replacing tyres 

Tyres are one of the car-ownership costs that frequently get overlooked, and they’re more expensive than most drivers realise.

How often they need replacing depends on mileage, driving style and road conditions but premium vehicles and SUVs can require more expensive tyres than smaller cars.

Choosing high-quality tyres can improve handling, safety efficiency, but replacement costs can still come as a surprise – especially if multiple tyres need changing at once.

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Tyre problems are the second most common reason for people to contact the AA.

It’s crucial that you regularly check your tyre condition and pressure to reduce unnecessary wear and help anticipate problems before they become an issue. 
 

Fuel and charging costs

Fuel prices can fluctuate dramatically in the UK, exacerbated by volatility in the price of oil. What this means for drivers is that petrol and diesel costs are one of the biggest day-to-day ownership expenses.

Because of this, it’s worth considering how different vehicle types may affect running costs. Larger SUVs, performance vehicles and heavier models often consume more fuel than smaller or more efficient alternatives, which can make a noticeable difference to monthly spending over time.

To help manage these costs, many drivers now build extra flexibility into their monthly motoring budget. Tracking average fuel or charging spends over several months can make it easier to prepare for price fluctuations.

For electric vehicle (EV) owners, charging costs replace traditional fuel spending but these can vary depending on how and where the vehicle is charged.

For example:

• Charging at home overnight on a dedicated EV tariff may be considerably cheaper
• Public rapid charging can cost significantly more
• Colder weather may affect battery efficiency and driving range
• Larger vehicles and batteries often involve increased charging costs

According to the Energy Saving Trust, drivers considering an electric vehicle should compare both their charging habits and relevant electricity tariffs when calculating long-term running costs.

Depreciation in vehicle value

One of the biggest cost implications that can get forgotten is depreciation of value.

Most vehicles lose value over time, and some models depreciate faster than others, depending on mileage, condition, market demand and brand reputation.

While depreciation might not feel like an immediate monthly expense, it can have a major impact on the long-term ownership costs – particularly for drivers who regularly upgrade or change their vehicles.

A car that loses its value quickly may reduce the amount available for a future part-exchange or trade-in, which can affect how much equity a driver has towards their next vehicle. 

Understanding to what extent the vehicle you choose is likely to hold its value can be an important factor when deciding whether to buy new, nearly new or used.
 

The big question: are EVs cheaper to maintain?

EVs typically have fewer moving parts than petrol or diesel cars which can help reduce certain maintenance requirements.

For example, EVs do not require oil changes and may experience less brake wear due to regenerative braking systems. However, EV ownership can still involve additional costs, including:

• Home charger installation
• Public charging fees
• Tyre wear
• Battery warranty considerations

While some drivers may benefit from lower day-to-day running costs, it’s still important to consider the full ownership picture before making the switch.
 

Looking beyond the purchase price

The cheapest car to buy doesn’t necessarily equal the cheapest car to own.

Looking at the bigger picture (including insurance, maintenance, fuel or charging costs, depreciation and unexpected repair) can help you make a more informed financial decision for your long-term budget and help you avoid costly surprises whichever vehicle you choose.