Allowable tools and equipment, van and mileage costs, PPE, record-keeping, National Insurance, VAT and MTD explained for UK self-employed and mobile tyre fitters.
Whether you run a bay in a fast-fit garage, work from a fitted-out van as a mobile fitter, or subcontract to a depot at busy times, a self-employed tyre fitter has a tax profile shaped by two things: serious equipment spending and a vehicle that is central to the work. The good news is that almost everything the job demands, from the balancing machine to the steel-toe boots to the diesel in the van, is an allowable cost. The risk is the opposite of an office worker's: not that you have too few expenses to claim, but that you fail to record the takings properly when cash and card payments come thick and fast through a working day.
This guide covers how your profit is taxed, the specific tools, vehicle and PPE costs a tyre fitter can claim, the record-keeping that keeps it all defensible, your National Insurance, and the VAT and MTD timing quirks that catch this trade out. Get the kit and mileage logged as you go and the annual return becomes routine.
As a sole trader you pay Income Tax on your profit, which is your total income (fitting labour, balancing, tyre supply, callout fees, puncture repairs) minus your allowable expenses. For 2025/26 the personal allowance covers the first GBP 12,570, then you pay 20% to GBP 50,270, 40% to GBP 125,140 and 45% above. The personal allowance tapers away between GBP 100,000 and GBP 125,140, creating an effective 60% band that few fitters reach but worth knowing. Class 4 National Insurance is 6% on profit between GBP 12,570 and GBP 50,270 and 2% above, with Class 2 NIC settled through Self Assessment.
Scottish tyre fitters pay Scottish Income Tax through six bands (19%, 20%, 21%, 42%, 45% and a 48% top rate) and carry an S-prefixed tax code, while National Insurance stays UK-wide. Welsh fitters have a C-coded tax code at rates currently matching the rest of the UK. If you also have a PAYE job, perhaps a few shifts at a garage alongside your own work, your code can end up wrong; run it through the tax code checker to be sure your personal allowance is sitting in the right place.
An expense is allowable when it is incurred wholly and exclusively for the business. For a tyre fitter the list is dominated by tools, machines, the van and consumables rather than the home-office costs that drive a desk-based trade.
| Expense | What qualifies | Notes |
|---|---|---|
| Machinery | Tyre changer, wheel balancer, air compressor, vehicle lift or ramps | Usually claimed in full via the Annual Investment Allowance |
| Hand and power tools | Pneumatic impact wrench, torque wrench, trolley jack, axle stands, bead breaker, valve tools | Replacements and repairs are deductible too |
| TPMS and diagnostics | TPMS reset and programming tools, pressure gauges, tread depth gauges | Allowable where used for the trade |
| Consumables / stock | Tyres bought for resale, valves, wheel weights, patches, rubber solution, balancing beads | Stock for resale is a direct cost |
| Van and vehicle | Mileage or actual running costs, plus a capital allowance on the van | Pick mileage or actuals, not both, per vehicle |
| PPE and workwear | Steel-toe boots, cut-resistant gloves, ear defenders, safety glasses, branded overalls | Everyday clothing is never allowable |
| Insurance | Public liability, tools-in-transit, goods-in-transit and business van insurance | Business policies only |
| Premises | Rent on a unit or bay, business rates, heat, light and waste tyre disposal | Apportion if shared with private use |
| Software and admin | Booking, invoicing and bookkeeping software, card-reader fees, phone | Deduct the business share of dual-use costs |
| Other | Trade waste tyre collection, professional subscriptions, accountancy fees | Waste disposal is a real recurring cost |
Tyre fitting is capital-heavy, and most of that spending is deductible in the year you buy it. A new tyre changer, a wheel balancer, an air compressor and a set of pneumatic wrenches are plant and machinery, normally claimed in full through the Annual Investment Allowance rather than spread over years. That means a fitter who tools up a new van or a new bay can offset a large slice of profit in the first year. Keep the invoice, the purchase date and proof of payment for every item; small consumables (valves, weights, patches, rubber solution) are simply ongoing business costs deducted as you buy them.
For a mobile tyre fitter the van is the business, so vehicle costs are usually the second-largest deduction after stock. You have two methods and must pick one per vehicle for the year:
A fitter who has spent thousands kitting out a van usually does better on actual costs because of the capital allowance on the van and the fit-out, while a lower-mileage operator with a cheap vehicle may prefer the simplicity of mileage. Work it out both ways once. Either method needs a contemporaneous mileage log separating business journeys (callouts, depot runs, stock collection) from private use. Run your figures through the sole trader tax calculator to see the effect of each method on your bill.
The private share of dual-use costs (a van also used for the school run, a phone used personally) must be excluded. Ordinary commuting from home to a fixed garage you work at is not allowable, though travel between jobs as a mobile fitter is. Everyday clothing is never deductible even if it gets ruined; only genuine PPE and branded workwear qualify. Fines and parking penalties picked up on callouts are not allowable. And meals while working locally are generally not claimable.
The biggest tax risk for a tyre fitter is under-recording income, not over-claiming expenses. A busy day mixes card payments, bank transfers, the odd cash job and account customers who pay later, and it is easy for a cash puncture repair or a Saturday callout to never reach the books. Record every job as it happens: date, customer, what you supplied and fitted, and the amount.
Keep purchase invoices for tyres and tools, fuel receipts or a mileage log, bank statements for the business account, and a simple record of every sale. Under MTD this record-keeping becomes digital and ongoing rather than a shoebox emptied each January, which actually suits a high-volume trade because the numbers are captured while they are fresh.
On top of Income Tax you pay National Insurance on your profit. Class 4 NIC is 6% on profit between GBP 12,570 and GBP 50,270 and 2% on profit above GBP 50,270. Class 2 NIC is no longer separately charged for most people but is treated as paid where profits are above the small-profits threshold, protecting your entitlement to the State Pension and certain benefits; it is settled through Self Assessment. If your profit is low in a quiet year, you can choose to pay Class 2 voluntarily to keep your contribution record intact, which is worth considering if you are building up qualifying years.
You must register for VAT once taxable turnover exceeds GBP 90,000 in any rolling 12-month period. Here is the trade-specific catch: because you buy tyres and resell them to the customer, your turnover is the full amount you charge, the tyre price plus your fitting labour, not just the labour. A fitter supplying a high volume of premium tyres can cross GBP 90,000 of turnover while the profit still looks modest, so check your rolling 12-month total every month rather than once a year.
Once registered you charge VAT on your invoices and reclaim VAT on the tyres, tools, van and consumables you buy. If most of your customers are businesses (fleets, dealers, garages) they reclaim the VAT you charge, so registration is relatively painless. If you mainly serve private motorists, adding 20% either squeezes your margin or pushes your prices up, so weigh that before registering voluntarily.
Many fitters mix their own retail work with subcontracting to depots or fast-fit chains, and some add wheel alignment, brakes or servicing. These all feed into the same self-employment trade, but it helps to track them separately so you can see what earns. If you take on construction-site or plant tyre work as a subcontractor under the Construction Industry Scheme, those CIS deductions are handled differently; see our guide to CIS subcontractor tax and use the CIS tax calculator to estimate any refund. Most tyre fitting falls outside CIS, but mixed trades should keep the streams distinct, and our multiple income streams guide explains how they stack for tax.
For a tyre fitter the money you forget to ring up costs more than the tools you forget to claim. Log every job as the wheel comes off, and the tax return looks after itself.
Take a mobile fitter who turns over GBP 62,000 in a year (GBP 40,000 of tyres supplied plus GBP 22,000 of fitting and callout labour), driving 14,000 business miles in a fitted-out van.
Allowable expenses:
Taxable profit: GBP 62,000 minus GBP 35,000 = GBP 27,000
Income Tax: GBP 27,000 minus GBP 12,570 = GBP 14,430 at 20% = GBP 2,886
Class 4 NIC: GBP 14,430 at 6% = GBP 866
Total tax and NIC: roughly GBP 3,752 for the year. Note the GBP 62,000 turnover is over the GBP 50,000 MTD threshold even though profit is GBP 27,000, so this fitter is in MTD from April 2026. Run your own figures through the sole trader tax calculator to sanity-check the numbers.
Making Tax Digital for Income Tax Self Assessment replaces the annual return with quarterly digital submissions and a year-end finalisation. The thresholds are based on gross income, not profit:
Because the test is on turnover, a tyre fitter who supplies a lot of tyres can be caught earlier than a pure-labour trade with the same profit, since the tyre price counts toward the gross figure. In practice MTD means logging each job and each tyre purchase digitally as it happens and sending HMRC a quarterly summary using compatible software, then finalising the year. For a high-volume trade this continuous record actually beats reconstructing a year of card slips and fuel receipts every January. Our guide to MTD for sole traders walks through the quarterly rhythm.
Forgetting cash and callout jobs. A Saturday puncture repair paid in cash is still taxable income; record every job, however small.
Mixing mileage and actual van costs. You must pick one method per vehicle for the year. Decide which gives the larger deduction and apply it consistently.
Ignoring the VAT turnover trap. Because resold tyres count toward turnover, the GBP 90,000 threshold arrives faster than fitting income suggests. Track your rolling 12-month total monthly.
Treating stock as profit. Tyres bought to resell are a direct cost; do not let a healthy bank balance fool you into thinking it is all profit before deducting stock.
Claiming everyday clothing. Only genuine PPE and branded workwear are allowable; the jeans that got covered in rubber are not.
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