Used Car Dealer Accountant · Birmingham & UK-wide
Accountants for Used Car Dealers
Running a used car business means the VAT margin scheme, a stock book HMRC can audit, and margins that live or die on the details. We handle the margin scheme, dealership payroll, finance and warranty commissions, and your year-end tax — on a fixed monthly fee, from accountants who already know the motor trade.
Margin scheme handled · Fixed monthly fee · No long tie-in
What is a used car dealer accountant?
A used car dealer accountant is a specialist accountant who handles the finances of motor traders — operating the VAT margin scheme, maintaining the vehicle stock book HMRC requires, separating margin cars from qualifying cars, and accounting for finance, warranty and GAP commissions. At ATB Solutions, that sits alongside your bookkeeping, payroll, year-end accounts and tax under one fixed monthly fee.
~55-word standalone definition — the block answer engines lift for “what is” queries.
Why used car dealers need a specialist accountant
Get the VAT margin scheme wrong and you either overpay HMRC or face a penalty on a stock book that doesn’t add up. A general accountant often treats every sale the same. In the motor trade, that’s expensive.
The margin scheme is unforgiving
VAT is due on your margin, not your profit — you can't deduct repairs, refurbishment or overheads from the margin calculation. Mix that up and the VAT is wrong on every car.
Margin cars and qualifying cars are taxed differently
Sell a qualifying car under the margin scheme (or vice versa) and the return is wrong. When a qualifying car is traded back in, its status changes — most software and most accountants miss it.
Your stock book is the first thing HMRC checks
If the sales invoice value doesn't match the stock book entry, the whole scheme is at risk. Record-keeping isn't admin here — it's the scheme's foundation.
Specialist vs general accountant for car dealers
What a dealership needs
General accountant
ATB motor-trade accountant
VAT margin scheme
Often applied incorrectly
Calculated on the VAT-inclusive margin at 1/6
Vehicle stock book
Rarely maintained
Kept audit-ready, matched to invoices
Margin vs qualifying cars
Frequently confused
Tracked and treated separately
Finance & warranty commissions
Missed or misposted
Accounted for correctly
Dealership payroll
Generic
Sales-team and commission-aware
HMRC VAT inspection
Exposed
Records ready before they ask
Accounting services for used car dealers
From payout reconciliation to profit-per-SKU reporting, one team handles it all under a single fixed fee.
VAT margin scheme & stock book
We operate the second-hand margin scheme correctly, calculate VAT on the margin, and keep the stock book matched to every purchase and sales invoice — so an HMRC check is painless. See our VAT Returns service.
Margin cars vs qualifying cars
We separate margin-scheme stock from qualifying vehicles and apply the right VAT treatment to each, including cars traded back in that change status.
Finance, warranty & GAP commissions
Commission income from finance, warranties and add-ons accounted for correctly, with the right VAT treatment.
How VAT works for used car dealers
- Under the VAT margin scheme, VAT is charged only on the difference between the purchase and sale price, not the full selling price. (Source: GOV.UK VAT Notice 718/1.)
- The VAT due is one-sixth (1/6) of the VAT-inclusive margin. (Source: GOV.UK.)
- You cannot reclaim input VAT on a vehicle bought under the margin scheme, and you cannot include repairs, refurbishment or overheads in the margin. (Source: GOV.UK.)
- Dealers must keep a stock book; the value on the sales invoice must match the stock book entry, or the scheme can be challenged. (Source: GOV.UK.)
- The UK VAT registration threshold is £90,000 of taxable turnover (rolling 12 months), unchanged since April 2024. (Source: GOV.UK.)
Motor traders we support
- Independent used car dealers and forecourts
- Car supermarkets and multi-site dealers
- Van and commercial vehicle traders
- Motorcycle and specialist vehicle dealers
- Online and hybrid dealers sourcing at auction
Getting started in four steps
01
Free motor-trade review
we look at your stock records, VAT position and current books.
02
Set up the scheme correctly
margin/qualifying split, stock book and cloud software in place.
03
We run it monthly
margin calculations, VAT returns, bookkeeping and payroll.
04
You stay audit-ready
accurate records, deadlines tracked, and us on WhatsApp when HMRC calls.
Used car dealer accountant pricing
Fixed monthly fees, agreed upfront — no hourly billing, no year-end surprises.
Sole Trader dealer
Sole traders on one channel-
Bookkeeping for one channel
-
Self Assessment prepared & filed
-
Year-end accounts
-
MTD-ready records
-
Unlimited email & phone support
Limited company dealership
VAT-registered limited companies-
Everything in Starter
-
Payout reconciliation via A2X / Link My Books
-
Quarterly MTD VAT returns
-
Corporation Tax & CT600
-
Statutory accounts & Confirmation Statement
VAT-registered / multi-site
Scaling sellers across platforms & borders-
Everything in Growing Store
-
Multi-channel & multi-currency bookkeeping
-
EU VAT (OSS / IOSS)
-
Profit-per-channel management accounts
-
Payroll & WhatsApp access
Not sure which fits? Tell us what you sell and where — we’ll recommend the right package. Monthly rolling, no long tie-in.
Why online sellers switch to ATB Solutions
100% on-time filing
Every VAT, tax and Companies House deadline tracked. Zero late-filing penalties.
40+ line types unpicked
Unpicked per settlement, so your profit and VAT reflect reality.
5.0 Google rating
Real answers from a named accountant, even on weekends.
£0 surprise invoices
One fixed monthly fee agreed upfront.
Used car dealer accounting FAQs
Under the margin scheme, you pay VAT only on the difference between what you paid for a vehicle and what you sold it for — specifically one-sixth of that VAT-inclusive margin. You can’t reclaim VAT on the purchase, and repairs or overheads can’t reduce the margin.
No. It’s optional and applied vehicle by vehicle. For most cars bought from private sellers it saves money versus charging 20% on the full price, but qualifying cars may be treated differently. We work out the best treatment for each sale.
A compliant stock book is essential — recording each vehicle’s purchase and sale details, with values that match your invoices. HMRC checks this first in a VAT inspection, so we keep it accurate and audit-ready
Yes. Commission from finance, warranties and GAP products is accounted for correctly, with the right VAT treatment, so nothing is missed or misreported.
We’re based in Birmingham on Coventry Road and work with motor traders across the West Midlands and the UK, in person or fully remotely.
Book a free consultation for your dealership
Tell us about your stock and how you sell. We’ll review your VAT position and give you a fixed monthly quote — no obligation, no jargon.
No long tie-in · Fixed fee, agreed upfront · Reply within one working day