The short answer: where a fleet actually loses money
Most haulage owners assume the accountant's job on a fleet is bookkeeping and the year-end return. The real value is upstream of that, in three decisions that repeat every month: how you reclaim VAT, how you fund the next truck, and how you forecast fuel. Get those right and the numbers move by thousands. Get them wrong and nobody notices until the cash runs thin.
Haulage is a low-margin, high-turnover business. A single artic can burn £3,000 to £5,000 of diesel in a busy month, a new tractor unit lands somewhere between £90,000 and £130,000, and driver wages are your biggest single line after fuel. When the margin on a job is a few percent, the tax treatment of the fuel and the truck is not a rounding error. It is the difference between a profitable quarter and a flat one.
This is the terrain a specialist covers that a general practice often does not. If you want the wider picture of how transport businesses are taxed and supported, our transport accountants page sets out the full service, and the VAT returns and Making Tax Digital page covers the filing side that a fleet lives and dies by. The rest of this guide walks the three decisions in turn.
The four numbers that decide a UK haulage company's tax position in 2026/27, and the ones a generalist most often gets wrong.
Reclaiming VAT on your lorries and your fuel
A VAT registered haulier reclaims the VAT on lorries, trailers and diesel in full, because commercial vehicles are outside the input tax block that stops businesses reclaiming VAT on cars. That single fact is worth spelling out, because a lot of the confusion around vehicle VAT comes from car rules being applied to trucks by mistake.
Cars carry a near-total VAT block. Unless the car is genuinely never available for private use, which almost never happens, you cannot reclaim the VAT on the purchase. Lorries, vans, tractor units and trailers carry no such block. Buy a £110,000 tractor unit and the £18,333 of VAT comes straight back on your next return, subject to normal business-use rules. HMRC sets this out in its guidance on VAT on motoring expenses (Notice 700/64).
Diesel is where operators leave money on the table. You can reclaim all the VAT on road fuel, but if any of it is used privately (a driver taking a truck home, a director's pickup on the same fuel card) HMRC expects you to account for the fixed road fuel scale charge each quarter, based on the vehicle's CO2 emissions rather than actual private mileage. For a pure fleet with no private use, there is no scale charge and you simply reclaim the lot. The mistake we see most is a fleet reclaiming only part of its fuel VAT out of caution, or forgetting the scale charge on the one director vehicle, when a clean policy would let them reclaim everything cleanly.
On the sales side, domestic UK haulage is standard-rated at 20 percent, so you charge VAT on your invoices once turnover passes the £90,000 registration threshold. International freight is where it gets technical. The transport of goods to or from outside the UK can be zero-rated or fall outside the scope entirely under the place-of-supply rules, and getting that liability right on cross-border jobs is one of the areas we correct most often when a haulier switches to us.
The fuel duty rise every operator needs in the forecast
Fuel duty is going up for the first time in over a decade, and a fleet that has not put it in the forecast is about to be surprised. The rate sits at 52.95 pence per litre as at August 2026, because the temporary 5 pence cut brought in back in March 2022 has been frozen and extended repeatedly, most recently to the end of 2026.
That freeze now unwinds in stages. According to HMRC's amended fuel duty rates for 2026 to 2027, the cut is reversed by 1 pence on 1 September 2026, a further 2 pence on 1 December 2026, and a final 2 pence on 1 March 2027, taking the headline rate back to 57.95 pence per litre. The whole 5 pence lands inside six months.
Do the arithmetic on your own fleet before it lands. A five-truck operation getting through, say, 15,000 litres a month faces roughly £750 a month of extra duty once the full 5 pence is in, and around £9,000 a year. You reclaim the VAT on the fuel, but duty is a cost you carry, so the question is whether your rates or fuel surcharges move with it. Hauliers on fixed-price contracts with no fuel escalator clause are the ones who feel this hardest, and now is the moment to check those contracts rather than in March.
Hire purchase, finance lease or contract hire
How you fund a truck changes its tax treatment completely, and the label on the agreement is not a reliable guide to the substance. The three common routes are hire purchase, finance lease and contract hire, and they behave very differently once VAT and capital allowances are in play.
Hire purchase treats the lorry as if you bought it outright on day one. You get the capital allowances on the full capital cost (the Annual Investment Allowance, covered below), and as a VAT registered business you reclaim all the VAT on the price at the start rather than dribbling it across rentals. The interest element is a separate deductible expense as the instalments fall due. For a haulier who wants the tax relief now, HP is usually the strongest hand.
Finance lease keeps the truck on the lessor's books, so you get no capital allowances on it. Instead you deduct the rental payments as a trading expense and reclaim the VAT on each rental as it is invoiced. The relief comes through over the life of the lease rather than up front. It is not a bad answer, it is just a slower one.
Contract hire (an operating lease) is the off-balance-sheet route: you are effectively renting the truck, the rentals are deductible, and the VAT on the rentals is reclaimable in full for a commercial vehicle. There are no capital allowances because you never own the asset. It is the lightest option on cash flow and the simplest to administer, which is exactly why plenty of fleets drift into it without checking whether they have given up meaningful tax relief to do so.
One practical warning worth more than any table: the wording of the agreement decides the treatment, not the marketing name on the top of it. We have seen agreements badged as "lease" that legally functioned as hire purchase and qualified for the allowances, and others badged as "finance" that were genuine leases with none. Ask the dealer for the HP quote and the lease quote on the same truck, and let the accountant read the substance before you sign.
Capital allowances on trucks, trailers and kit
A lorry qualifies for the Annual Investment Allowance, so a new truck bought and brought into use before your year end can be written off in full against taxable profit in that year. The Annual Investment Allowance, usually shortened to AIA, gives 100 percent first-year relief on up to £1 million of qualifying plant and machinery per accounting period, and it was made permanent in the March 2023 Budget. HMRC's Annual Investment Allowance guidance sets out the mechanics.
Here is the point that separates trucks from cars. Cars are excluded from AIA and are pushed onto slow writing down allowances set by CO2 emissions, which spread the relief across a decade. Lorries, tractor units, trailers, tail lifts, telematics and tracker units, refrigeration units and workshop equipment are all plant and machinery, none of it carries the car restriction, and all of it can sit inside the AIA claim. A fleet doing a £250,000 refresh across two trucks and a couple of trailers can usually relieve the qualifying capital cost in the year it is spent.
The timing detail that trips operators up is the phrase "brought into use". The truck has to be in service by the year end, not merely ordered or paid for. A March year end with a February delivery is comfortable. A March year end with a truck stuck in build until April misses the period, and the relief slides into the next year. If you are funding on hire purchase, the good news is that the full capital cost still qualifies from the date the truck comes into use, even though the instalments run for years. The government's HS252 capital allowances helpsheet for 2026 confirms the hire purchase treatment.
The £1 VED holiday and the HGV levy
Most eligible HGVs pay just £1 a year in vehicle excise duty right now, but the HGV levy still applies on top, so the road tax bill is not actually zero. Under the temporary VED rates for heavy goods vehicles, most trucks over 3,500kg pay a £1 annual VED rate when they renew between 1 July 2026 and 30 June 2027.
Two things about that are easy to get wrong. First, the £1 rate applies from each vehicle's own renewal date within that window, not across the whole fleet on 1 July, so trucks come into the holiday one at a time as their tax falls due. Second, the £1 only covers the VED element. The HGV levy is separate and still payable where it applies, running from roughly £161 to £804 a year depending on the vehicle's weight and Euro emissions band, as set out in the HGV levy service guidance. Newer, cleaner trucks sit at the lower end. So the practical position for 2026/27 is a near-nil VED and a modest levy per vehicle, which is worth knowing when you budget the fixed cost of running each unit.
Here is how the three common approaches actually compare for a haulage fleet's tax and VAT:
| What your fleet needs | DIY / software | Generic accountant | LOYALS specialist |
|---|---|---|---|
| Reclaims VAT correctly on trucks, trailers and fuel | ✗ You self-classify | ● If asked | ✓ Built into onboarding |
| Handles the fuel scale charge versus actual-use decision | ✗ | ● | ✓ Clean fuel policy set up |
| Reads HP versus lease wording before you sign | ✗ | ● | ✓ Pre-signing review |
| Builds the fuel duty rise into the cash-flow forecast | ✗ | ✗ | ✓ Forecast updated |
| Runs weekly driver payroll with RTI and pensions | ● You run it | ● Monthly only | ✓ Weekly, driver-ready |
| Open Mon to Sat, fixed monthly fee | ✗ | ✗ Mon to Fri 9 to 5 | ✓ 10am to 7pm, fixed fee |
This is why fleet operators tend to move from a generic accountant to a transport specialist once they run more than a truck or two.
What this means for your fleet
None of this is exotic planning. It is sequencing and attention, done at the right moments in the year. If you run a haulage business, here is the short list worth acting on now.
- Check your fuel VAT policy. Are you reclaiming all of it? Is there a director or private vehicle on the same fuel cards that needs the scale charge? A clean policy usually means you can reclaim everything without risk.
- Price in the fuel duty rise. Work out the extra cost across your monthly litres for the full 5 pence, and check your contracts have a fuel escalator before March 2027 rather than after.
- Match the next truck to the right finance. If you want the tax relief now and can carry the upfront VAT, hire purchase usually wins. Get both quotes and have the wording read before you sign.
- Time deliveries to your year end. A truck in service before the year end gets the full AIA in that year. One that slips past it waits twelve months for the relief.
- Diarise each truck's VED renewal. The £1 rate applies from each vehicle's renewal date to 30 June 2027, and the HGV levy still needs paying alongside it.
- Get weekly driver payroll off your plate. RTI, pensions and the weekly run are exactly the kind of repeatable work a specialist should be carrying, not you at the kitchen table on a Sunday.
LOYALS is a firm of chartered accountants that runs VAT, driver payroll and vehicle finance planning for haulage and transport operators across London and the UK. If any of the six above is sitting unchecked, it is usually a short conversation to fix.