Buying a car through your limited company: is it actually worth it?

If you run a limited company, buying a car through the business can sound like a great tax-saving idea. The company pays for the car, covers the running costs, and may be able to claim tax relief too.

But this is one of those areas where the answer is rarely a simple yes or no.

Whether it works well depends on the type of car, how much private use it will have, and whether the company is buying or leasing it. In many cases, a fully electric car can be very tax-efficient through a limited company. A petrol or diesel car, on the other hand, can end up being far less attractive once benefit-in-kind tax is taken into account.

Overall, electric cars still have the strongest company-car tax position, even though the rates have risen slightly from April 2025.

Can your limited company buy a car?

Yes. Your limited company can buy or lease a car and pay for related costs such as insurance, servicing, repairs and maintenance. The company may also be able to claim tax relief on the cost of the car or on lease payments, depending on how the vehicle is financed and what type of car it is.

The problem is private use.

If the car is available for private journeys, including ordinary commuting, HMRC usually treats it as a company car benefit. That means the director or employee may have personal tax to pay, and the company may also need to pay Class 1A National Insurance on the benefit.

So the real question is not whether your company can buy the car. It is whether the tax savings are bigger than the tax charges that come with it.

Why electric cars are usually the most tax-efficient option?

For company cars, HMRC works out the taxable benefit using the car’s list price and a percentage linked mainly to CO2 emissions. The lower the emissions, the lower the percentage tends to be.

HMRC updated the 2026/27 rates in April 2026, and for fully electric cars the benefit-in-kind rate has increased this year by 1%, to 4%. By contrast, many petrol and diesel cars sit much higher up the scale.

That low percentage is the main reason electric cars are so often recommended for limited companies. Even though the tax advantage is not quite as generous as it was before April 2026, the gap between electric cars and higher-emission vehicles is still significant.

Corporation tax relief on the car itself

If your company buys a car, it may be able to claim capital allowances, that mean the whole cost is offset against the taxable profits of the business that year.

HMRC says brand new cars with zero CO2 emissions can qualify for a 100% first-year allowance if bought new and unused before April 2027. That means the company may be able to deduct the full cost against profits in the year of purchase, rather than claiming relief gradually over time.

Other cars usually get relief more slowly through writing down allowances. This means the cost of the car is slowly offset against the company profits, over a number of years. HMRC’s guidance says the rate depends on the car’s CO2 emissions.

This is why electric cars often come out ahead twice: lower benefit-in-kind for the driver, and potentially stronger corporation tax relief for the company.

The downside: benefit-in-kind tax can wipe out the saving

This is the part where the idea often comes unstuck.

Even if the company gets tax relief on the car, that does not mean the overall arrangement is tax-efficient. If you use the car privately, the benefit in kind charge can create a personal tax bill every year the car is available to you. The company also has to deal with reporting and Class 1A National Insurance.

For a petrol or diesel car with a high list price, that tax cost can be substantial.

So while the company may be paying for the vehicle, you still need to look at the personal tax bill sitting behind it.

What about VAT?

VAT is one of the biggest areas of confusion.

In most cases, if a car is bought by the company and there is any private use, VAT on the purchase price cannot usually be reclaimed. With leased cars, the usual rule is more helpful but still restricted. Where there is private use, a business can normally reclaim 50% of the VAT on the lease payments. Recent guidance aimed at businesses continues to reflect that position.

So yes, VAT recovery can be possible, but it is rarely as simple as reclaiming everything because the company paid for it.

Running costs, fuel and charging

If the company owns or leases the car, it can usually pay the ongoing running costs. But fuel needs careful handling.

HMRC’s advisory fuel rates can be used when reimbursing business travel in a company car, or when an employee repays the cost of private fuel. HMRC is clear that these rates are specifically for company cars.

If the company pays for private fuel and the employee or director does not fully repay it, that can trigger a separate fuel benefit charge on top of the company car benefit.

Electric cars are more favourable here too. HMRC guides state that you do not have to pay or report on charging an employee’s fully electric company car if the employer owns or hires it, and HMRC’s manuals also confirm an exemption for employer-provided electricity for company cars and vans.

Buying vs leasing through the company

Ultimately this depends on cash flow, how long you want the vehicle, and the tax position.

Buying can work well where the company wants to keep the car for several years and the vehicle qualifies for 100% capital allowances, as in the case of a new zero-emission car. Leasing may suit businesses that want lower upfront costs and predictable monthly payments. Leasing can also allow partial VAT recovery on the lease rentals where private use exists, which is often useful for owner-managed businesses.

The right answer is often less about which route is “best” in theory, and more about which one fits the company’s cash flow and the driver’s actual use of the car.

When buying through the company tends to make sense

Buying a car through your limited company is usually most attractive when:

– The car is fully electric
– The company is profitable and can make use of the tax relief
– The vehicle will be used regularly for business
– You are happy to deal with the reporting and admin that come with company cars

That combination often gives the best balance between corporation tax relief and a manageable benefit in kind charge.

When it may be a poor fit

It is often much less attractive when:

– The car is petrol or diesel
– There is lots of private use
– The car has a high list price
– The company wants the simplest admin possible
– Cash flow is tight

In those cases, the tax on the benefit can cancel out much of the advantage of having the company pay for the car in the first place. The increase in company car tax percentages from April 2025 has made this issue even more noticeable.

 

The alternative: own the car personally and claim mileage

Sometimes the simplest option is to own the car personally and claim business mileage from the company instead.

HMRC’s approved mileage allowance payments remain 45p per mile for the first 10,000 business miles in the tax year and 25p per mile after that for cars. This approach avoids company car benefit in kind rules altogether, which is why it can still be the better choice for many directors using a personally owned car for occasional business journeys.

You will not get corporation tax relief on the cost of the car itself in the same way, but you also avoid the ongoing company car tax complications.

 

So, should you buy a car through your limited company?

Sometimes yes. Often no. Very often, it depends on the car.

A fully electric car can still be a very tax-efficient option through a limited company, even with the increase in benefit-in-kind rates. A petrol or diesel car is much more likely to disappoint once you factor in personal tax, employer National Insurance and restricted VAT recovery.

The key is to look at the full picture, not just whether the company can afford the car or whether the business can pay for it. The real decision sits in the detail.  The emissions, private use, VAT, fuel, capital allowances and how you want to extract value from the company all need to be considered.