Barrister Vehicle Expenses: Tax, VAT and AMAP Guide

Last updated: 21 February 2026

Tax deductible motor expenses for barristers

For self-employed barristers, owning a vehicle for work purposes is important. The nature of legal work involves a great deal of travelling, whether it is to visit with clients directly or for court appearances. It can also be very expensive, so it is important to ensure you are doing everything permissible to reduce your tax burden. Claiming back VAT on allowable travel expenses is one way to ensure you are not overpaying tax.

There are several tax regulations surrounding the leasing and ownership of motor vehicles that it is important for self-employed barristers to understand. These rules vary depending on the type of vehicle, its CO2 emissions and the reason it is being used: the primary distinction for tax purposes is the difference between ‘Business Use’ and ‘Private Use’. This article breaks down this distinction and simplifies the more technical aspects of the tax-deductible expenses around ownership, usage, and leasing of motor vehicles, as well as recommending meticulous record-keeping as per HMRC requirements.

Business Use and Personal Use

In tax terms, ‘business use’ refers to expenditure that is undertaken in pursuit of your profession. VAT can only be reclaimed where it is incurred for business purposes and must not be specifically disqualified by legislation (for example, expenditure on entertainment). Some items are not charged VAT during the initial transaction and therefore do not qualify as tax deductible expenses, as no VAT was paid in the first place.

When it comes to motor vehicle expenses, it is understood that your vehicle will be used for both business and personal reasons, and that these will inevitably overlap throughout the course of your career. Several tax provisions are in place that are unique to motor vehicle expenses.

Fuel Costs

Fuel costs are subject to VAT at the point of purchase, which self-employed barristers can then claim as input tax in its entirety if their vehicle is used at least partly for business purposes. This information is relayed to HMRC via meticulous record-keeping of invoices and receipts.

However, unless it can be proven that the vehicle is only used for business purposes, they must account for ‘output tax’ at a flat rate that corresponds to the CO2 emissions of their vehicle. No mileage calculations are necessary.

The only other options available are to not claim any input tax at all on fuel, or to keep a painstakingly accurate record of each mile travelled and whether it was for personal or business purposes. Keeping in mind that HMRC does not consider the ‘commute’ as a deductible expense (the journey between your home and chambers), this option is not viable for most self-employed barristers.

It is still important to keep an accurate record of your general business mileage, as if you are taxed under the ‘cash basis’ of self employment, then you are able to claim HMRC’s standard mileage allowance of 45p for the first 10,000 business miles and 25p for any after.

At the end of the tax year, the difference between your input and output tax is the amount you owe HMRC in VAT payments or the amount you can reclaim, depending on the values of each.

Leasing and Repairs

Whenever a vehicle is leased at least partly for business purposes, a flat rate of 50% of the VAT is reclaimable.

All the VAT charges incurred on repairs and maintenance for a vehicle that is used at least partly for business purposes may be reclaimed. In some cases, leasing a car includes repairs in its terms. In that circumstance, it may be necessary to apportion the costs, reclaiming all of the VAT for the costs of the vehicle hire and 50% of the repair costs.

Buying a Car

It is not possible to claim back any VAT on the purchase of a car unless it is entirely for business purposes. As HMRC considers that a vehicle is used for both business and personal reasons if there is nothing explicitly banning personal usage, in practise it is highly improbable that a self-employed barrister would be able to reclaim any VAT when buying a vehicle.

Making sense of motor expenses and VAT can be challenging. However, it is essential for self-employed barristers. Being aware of what is deductible and how to account for VAT can save you a significant amount in the long run. Always consult with a specialist barrister accountant to ensure you are making the most of your allowable deductions.

Mileage method vs actual costs: choosing one

HMRC offers two ways to claim vehicle expenses if you are self-employed. The first is the simplified mileage method, which uses fixed pence-per-mile rates known as Approved Mileage Allowance Payments (AMAP). The second is the actual cost method, which lets you claim a business-use proportion of every running cost plus capital allowances on the vehicle itself.

You pick one method per vehicle and you keep that method for as long as you own the vehicle. You cannot switch between methods to get a better outcome in different tax years. If you buy a new vehicle later, you can choose either method for that new vehicle, but the old one stays on whichever method you started with.

The mileage method is administratively simpler. You log every business journey (date, from, to, miles, reason), multiply the annual total by the AMAP rate, and that is your deductible amount. You cannot also claim fuel, servicing, road tax, MOT, insurance or capital allowances on the vehicle. AMAP is meant to cover all of that in one rate.

The actual cost method gives you a bigger deduction if you have an expensive vehicle, do heavy mileage, or have above-average running costs. The downside is record-keeping: every fuel receipt, every repair invoice, every insurance premium, plus a contemporaneous mileage log to support your business-use percentage. Most self-employed barristers find the mileage method gives a near-identical result with much less paperwork.

If you are using the cash basis (most self-employed barristers are, since the £150,000 turnover threshold from April 2024), the AMAP route is the default. Switching to accruals basis to access the actual cost method is rarely worth it for a typical vehicle.

HMRC AMAP rates for 2026/27

HMRC sets the Approved Mileage Allowance Payment rates and they apply to self-employed claims as well as employee reimbursements. The 2026/27 rates are unchanged from prior years:

For a barrister covering 8,000 business miles in a year, that is £3,600 deductible from your trading profit (8,000 x 45p). At a 40% marginal tax rate plus 2% Class 4 NIC, that saves around £1,512 in tax. A barrister doing 14,000 business miles claims £4,500 plus £1,000, totalling £5,500.

The 10,000-mile threshold resets every tax year. Track total business miles per vehicle, not per journey or per court. A passenger supplement of 5p per mile is also available if a colleague travels with you on chambers business, but most barristers do not claim this and HMRC scrutinises it where they do.

Capital allowances on cars: CO2 bands

If you use the actual cost method (rare for barristers, but worth understanding), you claim capital allowances on the cost of the vehicle itself. The rate depends on the vehicle’s CO2 emissions:

Capital allowances must be restricted by the business-use percentage. If your business use is 60%, you claim 60% of the allowance.

A petrol car with CO2 of 145g/km bought for £30,000 with 70% business use gives a first-year allowance of £30,000 x 6% x 70% = £1,260. The remaining £28,740 stays in the special rate pool, attracting 6% each subsequent year on the reducing balance. It takes around 17 years to write off most of the cost. This is one reason most barristers prefer the AMAP route.

Electric vehicles: 100% First Year Allowance

A new and unused electric vehicle qualifies for a 100% First Year Allowance, meaning you can deduct the entire cost in the year of purchase. This is restricted to your business-use percentage but is by far the most generous capital allowance available on a passenger vehicle.

A barrister buying a new electric vehicle for £55,000 with 50% business use gets a first-year deduction of £27,500. At a 40% marginal rate, that is £11,000 of tax saved in year one. Compare that to the £1,650 first-year saving on the equivalent petrol car using 6% WDA.

Three points to watch:

• Used electric vehicles do not qualify for the 100% FYA. They go into the main rate pool at 18% per year.
• The vehicle must be new and unused. Ex-demo cars and nearly-new lease returns are excluded.
• The 100% FYA scheme has a planned end date that has been extended several times. The current deadline is 31 March 2026 for company purchases and 5 April 2026 for unincorporated businesses. Check the latest Finance Act position before committing.

If you incorporate as a limited company and buy the electric vehicle through it, the company gets the 100% FYA against corporation tax. You then pay benefit-in-kind on private use: 4% of list price in 2026/27, rising to 5% in 2027/28. For most barristers the personal tax cost is modest compared to the corporation tax saving.

Lease vs buy: which is better for a barrister

Leasing a vehicle gives you a straightforward revenue deduction: the lease payments come straight off your trading profit each month, again restricted by business-use percentage. There is no need to grapple with capital allowance pools, balancing charges, or disposal proceeds.

The trade-off is that you never own the asset. At the end of the lease (typically three or four years) you hand the car back. If you regularly use the same vehicle for a decade, buying may work out cheaper overall. If you change vehicles every three or four years, leasing usually wins on simplicity and cash flow.

A few barrister-specific points:

• VAT on car leases is restricted. If you are VAT registered (which most barristers are, due to the 9 of 10 paying above the registration threshold), you can recover 50% of the VAT on each lease payment. The other 50% is blocked because the car is presumed to have some private use.
• Lease payments on cars over £45,000 list price may face a CO2 restriction. If the car emits more than 50g/km, 15% of the lease payment is non-deductible for tax. Electric and low-emission cars avoid this restriction.
• Personal contract hire (PCH) vs business contract hire (BCH) matters. Make sure the lease is in your trading name or limited company name to get the tax deduction.

Worked example: barrister with a £42,000 Audi A6

Sarah is a self-employed junior barrister in her fourth year of tenancy. She earns £95,000 in fees, files under the cash basis, and is VAT registered. She buys a new petrol Audi A6 for £42,000 (CO2 145g/km). Her business use is 60% (she keeps a contemporaneous mileage log showing 9,000 business miles out of 15,000 total).

Option A: mileage method

Sarah claims 9,000 x 45p = £4,050 of mileage allowance. At her marginal rate of 40% income tax plus 2% Class 4 NIC, that is £1,701 of tax saved each year. She cannot also claim fuel, repairs, insurance, road tax or capital allowances. Total annual tax saved: £1,701.

Option B: actual cost method

Annual running costs: fuel £2,800, insurance £1,400, servicing and repairs £900, road tax £190. Total £5,290. At 60% business use, deductible £3,174. Plus capital allowance: £42,000 x 6% x 60% = £1,512 in year one. Total year-one deduction: £4,686. Tax saved at 42%: £1,968. From year two onwards, the capital allowance falls as the pool reduces, so the annual deduction drops by around £100 each year.

Option C: same Audi A6 but the e-tron electric version, new for £62,000

First Year Allowance at 100% x 60% business use gives a deduction of £37,200 in year one. Tax saved at 42%: £15,624. There is no balancing charge until she disposes of the vehicle, at which point the disposal proceeds are added back into the pool. If she runs the vehicle for five years and gets £18,000 trade-in (60% business proportion £10,800), there is a £10,800 balancing charge in year five. Net tax saved over five years: roughly £11,000.

For Sarah, the mileage method is simpler and very close to the actual-cost result. The electric vehicle option is materially better if she plans to keep the car long enough to recover the upfront capital outlay, and she has the cash to fund it. Most barristers find the mileage method is the right answer for a petrol or diesel car, and the actual cost route only pays off if they are buying an EV or running a high-mileage practice.

Five mistakes barristers make on vehicle claims

1. Claiming the commute. The journey from home to your principal chambers is commuting, not business travel. It is not deductible. The reasoning comes from cases like Newsome v Robson: travelling to your normal workplace is a personal cost of being employed (or, in your case, of being self-employed) in that location. The exception is if you have no fixed chambers and genuinely operate from home, which is rare for a tenanted barrister.

2. Claiming a journey to court that started from home, in full. Strictly, you can only claim the mileage that exceeds your normal commute. If your home-to-chambers commute is 12 miles and you drive 18 miles direct to court, only the additional 6 miles is the business element under the most cautious interpretation. In practice, HMRC accepts the full direct mileage where you genuinely set off to court rather than via chambers, but the conservative approach is to log both totals.

3. No mileage log. Without a contemporaneous log showing date, from, to, miles and reason, HMRC can deny the entire claim. A spreadsheet updated weekly is fine; an app like MileIQ or TripLog is better. Reconstructing mileage from memory at year-end is the single most common reason vehicle claims get rejected on enquiry.

4. Mixing the mileage method with capital allowances. You cannot do both for the same vehicle. The mileage method already includes a notional capital element. If you claim AMAP and also try to claim 18% WDA on the same vehicle, expect a correction notice.

5. Forgetting the VAT scale charge. If you reclaim input VAT on fuel without keeping a detailed business-mileage log, you must apply the fuel scale charge based on CO2 emissions. This often wipes out most of the input VAT you have reclaimed. For a typical barrister, it is simpler to either claim no fuel VAT, or keep a strict mileage log and reclaim only the business portion.