Most UK fleets track fuel and tax, then guess the rest. Here are the 14 vehicle expense categories that actually shape your running costs, your tax return, and your year-end profit.
Key Takeaways
- Most small UK fleets track three or four expense categories well (usually fuel, insurance, VED, and finance) and lump everything else under "repairs" or "other". That habit costs you on tax, on pricing, and on cash flow.
- HMRC accepts a wide range of vehicle running costs as deductible business expenses when you use the actual-cost method. If you do not record them by category, you cannot claim them.
- There are 14 categories worth separating: fuel and energy, AdBlue and consumables, tyres, finance, depreciation, insurance, VED, MOT and DVSA fees, operator licence and driver CPC, routine servicing, unplanned repairs and recovery, parking and clean air charges, driver costs, and admin software.
- Cost-per-mile only makes sense when you also record mileage. Track both, per vehicle and per driver, or you are guessing.
- A clean per-category breakdown turns "the van costs about £600 a month" into a number you can actually defend at tax time, in a tender, or in front of an accountant.
If you run a van, a small fleet of vans, or a mixed fleet of cars and vans for work, you already know the headline numbers. Fuel goes up. Insurance goes up. The MOT bill arrives at the worst possible time. What most operators do not have is a clear breakdown of where the money actually goes, by vehicle, by driver, by category, across the year.
That gap is what this post is about. Proper vehicle expense categories are the difference between knowing your van running costs in the UK to the pound, and rounding to "about £600 a month" because that feels right. They are also the difference between claiming everything HMRC will let you claim and leaving money on the table because you never coded the expense properly in the first place.
Here are the 14 categories worth tracking, grouped the way HMRC and most fleet accountants think about them, with notes on why each one matters and what tends to go wrong.
Why most small fleets only track three or four categories
Walk into a typical sole trader's bookkeeping app and you will usually find four vehicle expense lines: fuel, insurance, road tax, and "vehicle repairs". Everything else (tyres, parking, AdBlue, congestion charges, the MOT, the breakdown call-out, the new dash cam) gets dumped into "other" or "miscellaneous", or it never gets recorded at all because the receipt lives in the door pocket.
That works right up until one of three things happens. Your accountant asks for a breakdown for the tax return. You try to price a long-distance job and have no idea what the true cost per mile is. Or you grow from one van to three and realise you cannot tell which vehicle is bleeding money.
Tracking by category fixes all three. It also makes you faster at spotting when a vehicle is heading for a major bill: tyres needing replacement every 18 months on the same van, or a slow climb in unscheduled repairs that says the gearbox is on its way out.
The 14 categories, grouped the way HMRC sees them
Running costs (the ones you pay to drive each day)
1. Fuel and energy. Diesel, petrol, or electricity. For combustion vehicles, this is fuel card statements, forecourt receipts, and any cash refills. For electric vans, it is home charging (claimed at the HMRC Advisory Electricity Rate), depot charging, and public rapid charging at very different per-kWh costs. Mixed fleets need a way to keep these separate by vehicle, because the cost-per-mile gap between a 35mpg diesel and a home-charged EV is wide enough to change which van you send on which job.
2. AdBlue and other consumables. Diesel vans with selective catalytic reduction (SCR) systems use AdBlue at roughly three to five litres per 1,000 miles. It is a small line on its own, but it is a real one, and HMRC treats it as a vehicle running cost. The same category holds screenwash, oil top-ups between services, and replacement bulbs.
3. Tyres. Tyres deserve their own category, not a sub-line of "repairs". A set of four van tyres can easily cost £400 to £800 fitted, and they are predictable: most vans need tyres every 25,000 to 40,000 miles depending on use. Tracking tyre spend by vehicle tells you whether a particular van is eating tyres faster than it should (which usually points to misalignment, suspension wear, or a heavy-footed driver).
Ownership and finance
4. Lease, hire purchase, or contract hire payments. The monthly payment to whoever owns the vehicle on paper. The accounting treatment differs depending on the contract type (operating lease vs finance lease vs HP vs PCP), which affects what you can claim and over what period. Keep the contract type in the category notes, not just the amount, so your accountant can apply the right rule at year end.
5. Depreciation (for vehicles you own outright). If you bought a van outright, you do not deduct the purchase price in one go. You claim capital allowances against it across multiple years, and the residual value falls every year. Most small operators ignore depreciation in their day-to-day numbers and then wonder why the van is "worth less than they thought" at trade-in time. Tracking it (even as a rough annual estimate) keeps your cost-per-mile honest.
6. Insurance. Vehicle insurance, fleet policy premiums, and any add-ons (gap insurance, tools-in-transit cover, breakdown bolt-ons that come through the insurer rather than a standalone provider). For multi-vehicle fleets on a single policy, you will need to apportion the premium across vehicles to get a real per-vehicle cost. Most accountants will accept a sensible split based on premium-driver factors (driver, vehicle value, mileage band).
Compliance and tax
7. Vehicle Excise Duty (road tax). Most modern vans (light goods vehicles registered after 1 March 2001, tax class 39) pay a flat rate that sits at £345 a year for 2026 to 2027. Electric vans now pay this too, after the April 2025 change. It is small, but it is annual and it is easy to forget if your VED renewal date drifts away from your other compliance dates. Free MOT and tax reminders from Autodue keep both on the calendar at 90, 60, 30, and 7 days out.
8. MOT and DVSA fees. The MOT is capped: £54.85 for Class 4 (most vans up to 3,000kg) and £58.60 for Class 7 (3,001kg to 3,500kg). Add retest fees if a vehicle fails, plus any pre-MOT inspections you pay your usual garage for. For O-licence operators, this category also covers DVSA enforcement fees, plating and testing for vehicles over 3.5 tonnes, and any annual test charges. None of these are large individually, but they add up across a fleet, and they all need a paper trail. If you want a refresher on the MOT side, our free MOT history check guide walks through what the records show and how to spot trouble before a test.
9. Operator licence and driver CPC. If you run vehicles over 3.5 tonnes (or vans between 2.5 and 3.5 tonnes operating internationally), you need an operator's licence. The application fee, the five-yearly renewal, and any variation fees all sit here. Driver Certificate of Professional Competence (CPC) periodic training (35 hours every five years) belongs in this category too. A typical CPC course costs £60 to £100 per day per driver. It is a known, scheduled cost; treating it as a surprise every five years is a fleet manager error.
Maintenance and repair
10. Routine servicing. Manufacturer-scheduled services, oil and filter changes, cambelt replacements at the recommended interval. For a typical work van this is one service a year at £150 to £300, plus larger interim items every two to four years (cambelt change at 60,000 to 100,000 miles, brake fluid at two-year intervals). Keeping service records by vehicle is also what protects the resale value when you come to sell.
11. Unplanned repairs and breakdown recovery. Everything that was not in the service schedule: a new alternator, a snapped exhaust hanger, a clutch replacement, the cost of getting the van home from a motorway hard shoulder. Track these separately from routine servicing so you can see the trend. Three big repair bills in twelve months on the same van is the universal signal it is time to plan a replacement, not a fourth fix. Recording the defects that triggered each repair in the same place gives you a maintenance history a buyer or a garage can actually use.
Roads, access, and admin
12. Parking, tolls, and clean air charges. This category swallows more money than most operators realise. Pay-and-display parking, NCP and APCOA charges at customer sites, the Dart Charge for the Dartford Crossing, the M6 Toll, the Mersey Gateway, the Tyne Tunnel. Plus the growing list of clean air zones: London ULEZ at £12.50 a day for non-compliant vans (rising to a £160 PCN if missed for three days, reduced to £80 if paid within 14), the London Congestion Charge, and the Birmingham, Bristol, Sheffield, Bradford, Newcastle, and Tyneside CAZ schemes. If your vans cross these zones routinely and the cost is not in your day rate, the cost is coming out of your margin.
13. Driver costs that follow the vehicle. Periodic medicals (especially for over-3.5-tonne drivers), DVLA licence checks (you should be running these at least annually for any employed driver), driver training beyond CPC, drug and alcohol screening if you operate under those policies, and uniform or PPE that is specific to the vehicle role. Some operators treat driver costs as payroll only, but the vehicle-related ones (licence checks, medicals, vehicle-specific training) sit more neatly here for proper cost-per-vehicle analysis.
14. Telematics, software, and admin. The unsexy line nobody wants to track. Telematics or tracking subscriptions, fleet management software, walkaround check apps, expense tracking and accounting software, plus the time spent on admin (which has a cost even if it is your own time). For many sole traders this is £20 to £100 a month per vehicle. For larger fleets it is a meaningful capex line. Either way, track it; otherwise you cannot defend the spend when someone asks why you need the tools.
Cost per mile only works if you also track mileage
A category breakdown tells you what you spent. Cost-per-mile tells you whether you can afford the next job at the price you quoted. To get one, you need the other.
Per-vehicle mileage logs are the missing half of most expense systems. If you know a van cost £6,800 to run last year and covered 22,000 business miles, you have a defensible cost of about 31p per mile before you add finance and depreciation. If you only know the £6,800 and not the miles, you do not have anything you can put in a tender.
Mileage tracking that runs in the background takes this from a quarterly chore (or worse, a tax-time scramble) to a number that is always there. The same logs feed into HMRC's mileage allowance method if you choose to claim that way instead of actual costs.
What to track per vehicle and what to track per driver
Most categories are vehicle-bound: fuel, finance, insurance, VED, MOT, servicing, repairs, tyres. Code them to the vehicle and they aggregate cleanly when you want to compare van against van.
A few are driver-bound: licence checks, CPC training, medicals, driver-attributable fines (parking tickets, congestion charge PCNs the driver forgot to pay). Code these to the driver and they aggregate cleanly when you want to compare driver behaviour across the same vehicle, or when you take on a new hire and need a per-driver onboarding cost.
A few sit in both views: fuel cards (issued to drivers, but consumed in vehicles), telematics (paid per vehicle, used to manage drivers). The cleanest setup tags both: vehicle and driver, on the same expense record. That way the same line appears in both reports without double-counting.
The bottom line
The reason "the van costs about £600 a month" is not a useful number is that it hides the question that actually matters: which £600. Knowing it is £180 fuel, £120 finance, £85 insurance, £70 amortised servicing, £30 VED, £25 ULEZ, £40 tyres, £30 parking and tolls, and the rest in admin and repairs gives you something you can act on. You can renegotiate the insurance. You can change the route to avoid two ULEZ days a week. You can see the tyres are going faster than they should and check the tracking.
Pick the 14 categories above, set them up once in whatever you use to record receipts, and tag every vehicle expense to one of them as it happens. Six months in, you will have the per-vehicle, per-driver, per-mile picture that turns guesswork into pricing.
Stop guessing what your vans actually cost. Autodue tags every vehicle expense to the right category, links it to the vehicle and driver, and combines it with mileage so you get a real cost per mile per van.
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Sources: GOV.UK: V149 Rates of vehicle tax (April 2026) · GOV.UK: MOT test fees · GOV.UK: Approved Mileage Allowance Payments (AMAP) · Transport for London: ULEZ charges and penalties · GOV.UK: Driver CPC for lorry, bus and coach drivers · GOV.UK: Expenses if you're self-employed: Car, van and travel expenses