Motor trades
Accountants for Mobile Mechanics
Motor Trade Accounting helps mobile mechanics across the UK get specialist accounting and tax support from people who understand the trade. Spend your time on driveways and in customers' car parks, not wrestling with receipts and HMRC letters.
Accounting for a business that runs out of a van
Working as a mobile mechanic keeps your overheads lean, but it also blurs the line between the business and everyday life. The van is your workshop, your stores and often your family transport too. Parts are bought at the counter on the way to a job, paid for on a card one day and in cash the next, and invoices get written up at the kitchen table in the evening. A specialist motor trade accountant knows how that week actually looks and can turn it into records that stand up to scrutiny.
Most mobile mechanics start as sole traders, and plenty stay that way. Others move to a limited company as the work grows, or take on an apprentice or a second van. Each step changes how profit is taxed, which records you need and what has to be sent to HMRC. Good advice early on means you choose the structure that suits your income rather than the one a friend happened to pick.
The aim is simple: accounts that are right, tax that is paid on time and at the correct amount, and a clear view of what the business really earns once fuel, parts, tools and insurance are taken off. That picture matters when you are deciding whether to raise your labour rate, buy a newer van or turn down low-margin work.
What specialist support covers
Support is shaped around how a one-van or small mobile operation runs.
- Self assessment returnsYour tax return prepared from your records, with profit worked out correctly and the payment dates explained so the bill never comes as a surprise.
- Van and mileage costsA clear decision on whether to claim actual running costs and capital allowances or use HMRC's flat mileage rates, and a record of which method each vehicle uses.
- Tools and diagnostic kitSpanners, lifts, jacks, code readers and software subscriptions recorded properly, so purchases are claimed in the right way and in the right year.
- Parts and materialsParts bought for customer jobs matched to the invoices they were recharged on, so nothing is missed and nothing is claimed twice.
- Making Tax Digital for Income TaxHelp choosing compatible software and setting up quarterly updates if your income brings you into the new rules.
- VAT registration checksTurnover monitored against the VAT registration threshold, with advice on timing, pricing and which VAT scheme would suit a labour-heavy business.
- Sole trader or limited companyA plain comparison of the tax and admin on each route, using your own figures, before you commit to a change.
What to plan before you start
A little preparation makes the first conversation far more useful.
Separate business banking
Running everything through one personal account makes it hard to prove what was business spending. A separate account, even a basic one, keeps the trail clean.
A routine for receipts
Parts counter receipts fade and get lost in the footwell. Photographing them on the day, or using an app that reads them, saves hours at the year end.
How you use the van
Note roughly how much of the van's use is for work. Private use affects what can be claimed, and HMRC may ask how the figure was reached.
Your plans for the next year or two
Taking on staff, buying a second van or moving into a rented unit all change the advice, so mention them early.
Good to know
Cash basis is now the default
Most sole traders now work out profit on the cash basis unless they opt out, meaning income and costs count when money actually moves. It suits many mobile mechanics, but not every business, so it is worth checking.
Simplified expenses are a one-way choice per vehicle
Once you use HMRC's flat mileage rates for a van, you generally keep using them for that vehicle. Compare both methods before the first claim.
The trading allowance rarely helps a working mechanic
It lets very small traders deduct a flat allowance instead of real costs. With parts, fuel and insurance to pay, real expenses usually come out higher.
Payments on account can double the first bill
When your tax bill passes HMRC's limit, you pay towards next year in advance. Many people only find this out at their second January deadline.
How it works
- 1
Send an enquiry
Tell us about your work, how long you have been trading and what you need help with. A short form is all it takes.
- 2
Talk it through
A specialist motor trade accountant arranges a call to understand how your business runs and what is worrying you.
- 3
Get a clear proposal
You receive an outline of the work involved, what records are needed and how the arrangement would run.
- 4
Get organised
Records are gathered, any overdue returns are brought up to date and a simple routine is agreed for the year ahead.
Questions mobile mechanics ask
Can I claim for my van if I also use it at weekends?
Yes, but only the business share. Your accountant will help you work out a reasonable split and keep the evidence that supports it.
Do I need to register for VAT?
Only when your taxable turnover passes the VAT registration threshold set by HMRC, or if you choose to register voluntarily. Turnover is checked on a rolling twelve-month basis, so it needs watching as the business grows.
Should I be a limited company?
It depends on your profit, how much you draw and how much admin you are willing to take on. A comparison using your real figures is the only reliable way to decide.
Will Making Tax Digital affect me?
Making Tax Digital for Income Tax is being phased in from April 2026, starting with sole traders on higher incomes and reaching more people as the threshold falls in later years. Your accountant can tell you when it applies to you.
Can I claim for tools I bought before I started trading?
Often yes. Tools you already owned and brought into the business can usually be claimed at their value when the business began.
Who will I be speaking to?
A qualified accountant who works with motor trade businesses and understands how mobile repair work is run.
Spend less time on paperwork
Tell us a little about your mobile repair business and we'll arrange a conversation with a specialist motor trade accountant.