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Travel expenses 5: Company cars

Posted by: Intouch | 24.03.15

Company cars

Travelling & Subsistence: Company cars

In our previous ebriefs, ‘Travelling and Subsistence: Parts 1- 4’, Paul Gough, Managing Director of Intouch Accounting, the personal online accounting adviser for contractors and freelancers, looked at business journeys and how to claim the cost from your company of using your privately owned cars for business. We also looked at what happens when your company owns a motorcycle, provides a bicycle or even a van to use for business travel, and how you are taxed on the private use of those company owned assets.

But, by far the most frequently asked question, and the one we have deliberately left to last because of the complex nature of the rules, is whether a car, used for both business travel and private use, should be purchased personally or by your company.

There is no simple answer to this question; each situation varies and often the final decision is based not on the extent of tax liabilities, but personal preference and convenience.

But in order to make the choice, you should understand what makes this decision so difficult. Therefore, the purpose of this final ebrief in the series is to set out the consequences of the company providing a car, and how the calculations are made to work out what tax your company and you have to pay as a consequence.

You will then need to compare that to the alternative of buying the vehicle personally.

Over the years, company car taxation has changed. Gone are the days of it being a bit of a wheeze to give employees something for nothing. The tax climate is adverse to company cars and the political ‘green’ revolution has introduced variations to encourage greener vehicles when a company car is provided. Indeed, these changes continue to be made with new rules coming into effect for 2012/2013 and onwards to at least 2016, so this is an ever-changing area of tax.

When an employer provides any asset that is capable of private use, the employee may suffer a personal Income Tax liability on what is referred to as a Benefit in Kind (BIK). Additionally, the employer suffers an Employers National Insurance (NI) cost, although it does obtain corporation tax relief on the costs incurred. The provision of a company car is no different.

Who bears the cost?

One thing to remember if your company does provide a car is that it’s very important that the company also incurs all the costs of that car. So if you spend any money personally on running a car owned by the company, make sure yourecover that cost via your expenses.

The reason is simple: the car BIK is calculated based on a formula associated with the value of the car new and its CO2 emissions value, rather than whether your running costs are £250 or £25,000.

Important VAT points for you to remember

Your company cannot recover VAT paid on the purchase of a car that is capable of any private use. Even if you adopt the Flat Rate VAT Scheme and the cost of the car is greater than £2,000, you cannot make use of the capital asset rule and recover the VAT.

This is also the case where your company leases the car; you can’t recover any input tax at all on the Flat Rate Scheme and, for those who don’t adopt the scheme, only 50% of the VAT on the lease rentals can be claimed. If your company sells a car it owns, then you will not have to account for VAT on the sale of any car subject to these input VAT restrictions.

If your company pays for fuel, and you make use of the car privately, then you should account for the VAT on the private use of the car. Happily, this is simply a matter of applying a scale charge every quarter, adding a notional scale charge to your value of outputs and accounting for either your flat rate percentage or the standard percentagerate of VAT (if you’re not using the Flat Rate Scheme) to the scale charge.

In all other respects, any VAT incurred by the company on car related expenditure can be recovered, provided you are not adopting the Flat Rate Scheme; this means you should also reassess whether that scheme continues to bebeneficial to you where you decide to purchase a car through your company.

Capital cost

When your company buys a car, it’s a capital cost that the company can use to reduce its corporation tax. But, the reduction in your taxable profits for the year your company purchases the car, is not the full cost. Instead, the capital cost is divided over a number of years and reduces the corporation tax bill over the life of the ownership of the car. This system is called capital allowances – our specialists at Intouch Accounting can explain this further to you, if required.

However, if you want another example of ‘green taxes’ be aware that for low emission cars (under 110mg/km CO2 ), it’s possible to claim 100% allowances in the first year.

Costs incurred on accessories at the time of purchase are always added to the capital cost, but later accessories may be treated as expenses, provided they are not over £100 per item. There are other exemptions, but these are mainly associated with disabilities for blue badge holders.

Costs incurred on accessories at the time of purchase are always added to the capital cost, but later accessories may be treated as expenses, provided they are not over £100 per item. There are other exemptions, but these are mainly associated with disabilities for blue badge holders.

Running costs

All running costs of a car are allowable expenses and reduce your company profits by the cost incurred. See above for VAT. It’s essential that you claim all running costs to offset the BIK– but we’ll come to this in a minute. The key point here is make sure you don’t miss those petrol bills paid privately!

It’s also important to note that petrol is something that is taxed as a separate BIK. Sometimes it’s therefore better to incur all petrol costs privately and recover a specially reduced approved mileage allowance payment for business journey’s to avoid this Benefit. But again, we’ll return to this later.


If you are unfortunate enough to be subject to the IR35 deemed salary calculation, then the costs of a car are a deduction from that deemed salary calculation, because they are subject to a BIK charge. But we’ll cover IR35 in a separate series of our monthly ebriefs. And don’t forget, at Intouch Accounting we offer free IR35 contract reviews, so contact us if you have any concerns relating to this matter.

So, what’s next?

Everything above sounds really good. The company buys a car, it gets tax relief on the capital cost, albeit over a number of years, and it gets tax relief on the running costs. If you’re not using the Flat Rate Scheme you even recover VAT on the running costs. So, what’s the problem? The simple answer is BIKs and the amount of tax you have to pay.

Tax consequences

  • The first tax consequence is that your company must pay employers NI contributions at 13.8% of the value of the BIK. The value of the Benefit is reported annually on a fiscal year basis (year ended 5 April) on form P11D, and the NI cost is reported on the associated form P11D(b). The forms are due before 6 July following the end of the fiscal year, and the liability is payable no later than 19 July (or 22 July if you pay electronically).
  • The second tax consequence is a personal one. The value of the BIK for the company car and the fuel Benefit becomes part of your income and self-assessment. You therefore must pay income tax on the value of the Benefits and, because this will increase your overall income, the tax cost is effectively at your highest rates of Income Tax. If your earnings are a mix of wages and dividends then it may appear that the BIK tax is only at the 20% basic rate level, but it will also adjust the level at which dividends enter higher rates of tax

So what is the BIK?

This is where the subject becomes more complicated. The tax you pay is broadly determined by three factors:

  • The list price of the car plus accessories
  • The CO2 emissions of the car, and
  • The fuel type of the car

The list price

Please don’t think that buying a second hand car will help you. The price used in the calculation of the Benefit is the manufacturer’s published UK list price on the day before the car was first registered, including duties and VAT, delivery, car tax and number plates.

We’ll ignore classic cars and cars registered before 2000 that use LPG of CNG. Needless to say, special rules again apply in these cases and you can ask one of our specialist advisers at Intouch Accounting to help you work out the “list price”

If you made a personal contribution towards the cost of buying the car, then you can reduce the list price by the lower of the contribution made and £5,000. The result is the price used for calculating the Benefit; it is not the value of the Benefit.

You now need to work out the CO2 emissions for the particular car. Most cars have one obtainable from the manufacturer, or it can be found on various websites such as If one is unavailable, then the size of the engine is used, but this is very rare

The Benefit

You will need to look up a percentage that relates to your vehicles CO2 value (this can vary each year). This percentage is then applied to the list price determined above to calculate the value of the taxable BIK for a full year.

Adjustments to the Benefit

If the car is only available to you for part of the year, you can reduce the value of the Benefit for that period. The reduction is based on days such as:

  • Before it was first made available to you
  • After it finally stopped being available to you
  • Any day falling within a continuous period of 30 days during which it was not available to you (note that rules apply to replacement cars if a car is unavailable for more than 30 days). There is no deduction for days falling within a period of less than 30 consecutive days.

You can also get a reduction in the value of the Benefit if you make contributions back to the company for private use.

The taxable Benefit

Having calculated the Benefit and made any appropriate adjustments, this is the value on which you actually pay Income Tax and your company pays Employers’ NI contributions.

You will also have to undertake this calculation for every car available to you, and to your associates (if they are not taxed individually). So there’s no point giving your spouse a car, just because your spouse is not employed by your company!

Planning point

There is essentially only one realistic way to minimise your BIK and that is by selecting a car with a low emissions value or looking for the greenest car you can find – called zero emission cars. Unfortunately, in most cases, the exciting cars are also often the ones with the highest emission CO2 values.


An employee is provided with a car on 1 May 2010 for business and private use. The car has a list price of £13,000.

It is supplied with automatic transmission and a sunroof as optional extras. These items have a list price of £800. The employee makes a capital contribution of £4,000 towards the car and £200 towards the optional accessories and also pays £50 per month for the private use of the car. CO2 emissions are 185g/km

  • Find the price of the car £13,000
  • Add the price of any accessories £800 (£13,000 + £800) = £13,800
  • Deduct any capital contribution £4,200 (£13,800 minus £4,200) = £9,600
  • Find the appropriate percentage for the car – in this case 26% for 185g/km
  • Multiply Step 3 by Step 4 (£9,600 x 26%) = £2,496
  • Deduct any period when the car is unavailable. The car is unavailable 6 April to 30 April 25 days results in -£171. (25/365 x £2,496) = £171 (rounded)
  • Deduct payments by the employee for private use (11 x £50) = £550
  • Car benefit = £1,775

Car Fuel Benefit

We have suggested above that fuel is a separate BIK charge, because that’s exactly what it is. If your company provides you with any private fuel then the full Benefit applies, regardless of whether or not the whole of the private fuel is provided

If your company reimburses you for the cost of fuel, then this counts as providing private fuel. The Benefit can only be avoided if you personally pay for all of your private fuel use (you could reverse charge yourself for private miles using the Company Car Advisory Fuel rates – but these are based on engine size and much lower than the scale rates as they are intended to cover petrol costs only). But, it has to be all the private miles; or alternatively no private use is made of the car – and let’s be honest, this is normally unrealistic to argue.

There is an important point here with fuel Benefit; only partial reimbursement for your private use of the car has no effect whatsoever, because the full BIK still applies to both employer and employee. The fuel Benefit is calculated by applying the same percentage applied for the car Benefit by the fixed sum of £18,000. The Benefit is calculated individually for each car made available

You can make adjustments for periods that the car is not available, in the same way as you can for the car Benefit.

Planned changes

At the time of publication (March 2012), the following changes are planned:

Changes from 2012-13

  • The special rules for QUALECs (qualifying low emissions cars – those with CO2 emissions not exceeding exactly 120g/km) will be abolished
  • The lower threshold (the CO2 emissions figure which sets the 15 per cent rate) will be reduced from 125g/km to 120g/km
  • The lowest appropriate percentages are still 0 per cent and 5 per cent, but 10 per cent will only apply to cars up to an emission level of 99g/km. From 100g/km the rate is11 per cent and rises by 1 per cent for every 5g/km to the current maximum of 35 per cent (emissions of 220g/km)

Changes from 2013-14

  • The lower threshold will be reduced from 120g/km to 115g/km
  • The lowest appropriate percentages are still 0 per cent and 5 per cent. 10 per cent will now apply to cars with CO2 emissions of 76g/km to 94g/km
  • The appropriate percentage will increase by 1 per cent for all vehicles with CO2 emissions between 95g/km and 215g/km, to a maximum of 35 per cent

Changes from 2015-16

  • The appropriate percentage for zero emission cars reverts to 9 per cent, unless this figure is changed in any future announcement
  • The special rules for cars with CO2 emissions not exceeding exactly 75g/km will be abolished

And the Budget in March 2012?

All we can say is watch this space… We’ll post further details on our website, when available

Pool cars

One final point before we conclude… Pool cars are often quoted as being a great way of avoiding the BIK. A pool car is one that is not made available to any one employee in particular and is therefore not available for private use. But let’s be honest, one man companies are going to find it very difficult for this to apply – and there are rules that mean the car cannot be left overnight at an employee’s home, which is going to be hard to prove when your business operates from your own home.

So, unless you have very special circumstances, in which case these need to be considered, we wouldn’t recommend you bother dwelling on the subject of pool cars.

In conclusion

So how do you work out whether it’s beneficial for the company to own the car or not? Well you have to follow a series of steps:

1. Work out the real cash cost of buying and running the car. Take into account VAT for your company only where you don’t use the Flat Rate scheme

2. Work out the BIK for both the car and the fuel Benefits and the Employers NI cost

3. The total cost is 1 plus

4. Work out the tax relief the company gets on 3, but remember special rules apply to the capital cost

5. Deduct 4 from 3 and this is the net cash cost for the company of the car

6. Work out the actual tax cost to you of the BIK. This is the cash outlay you have to make, but this needs to be financed from earnings from the company so you need to then work out the post tax cost of the company making those funds available to you.

7. The final net cost to the company is 6 plus 7

Compare this value with:

8. Work out your business miles and calculate the mileage claim from the company and then deduct the corporation tax relief you can obtain. Put this number to one side

9. The cash cost of owning and running the car found in 1 equally should apply to you. Deduct from this the gross mileage claim received from the company. This is your cash cost, but this is not the full cost because of course you must earn this money and pay tax on your earnings. The cash amount must be grossed up to take into account the income tax and NI you have to pay to earn enough after tax to pay this cash cost.

10. Assume that the amount in 9 is provided by the company. Calculate and deduct the corporation tax relief obtained on providing this money to you and then add the number found in 8. This is the net cash cost to the company of providing sufficient money to you to finance the car

Decision = take the lower value


If you are able to work out these numbers correctly for yourself then you can always apply for a job with Intouch Accounting! But if, like most people it just feels too difficult, then ask us for help. It’s one of the benefits of having an accountant on call that understands your questions. Now, as you can see, this is a complex comparison for one year and it changes annually depending on the car, the business miles and private miles (the total miles and the proportion of each), the costs of running the car, not least the cost of fuel… all of which are variable. The result may therefore flip between personal and company over the life of the car. So it’s often too complex to decide with any degree of accuracy and better to say what suits you… convenience or cost?