What the VAT margin scheme is, in plain English
When a VAT-registered business buys a used vehicle from a private individual (someone not registered for VAT, which is most drivers) and re-sells it, HMRC's standard VAT rules would normally require the business to charge 20 per cent VAT on the full sale price to the next buyer. That would punish the second-hand trade unfairly: the vehicle has already had VAT paid once when it was new, and charging another 20 per cent on top would double-tax the same physical asset.
HMRC's solution is the VAT Margin Scheme. Under the scheme, a VAT-registered business that buys a used vehicle from a non-VAT-registered seller pays VAT only on the margin (the difference between what they pay you for it and what they re-sell it for), not on the full sale price. The buyer's margin is taxed at 20 per cent; the underlying capital value passes through without further VAT.
From the driver-seller's perspective, this is mostly invisible: you get the agreed price into your account, no VAT changes hands at your end, and the rest is the buyer's tax workflow. But the scheme is the reason a VAT-registered buyer can offer you a competitive number for a used cab without the offer being depressed by 20 per cent of imaginary VAT.
When does the margin scheme apply to a cab sale?
Three conditions, all of which need to be met:
- You (the seller) are not VAT-registered, OR you are VAT-registered but the vehicle was purchased without input VAT being claimed (most owner-drivers fit one of these).
- The buyer is VAT-registered and is buying the vehicle as trading stock (a specialist cab buyer, a used-car dealer, an export trader, all qualify).
- The vehicle qualifies as an "eligible second-hand good" under HMRC's Notice 718/1. Cars, vans, taxis, and PHVs all qualify; the rules are vehicle-agnostic.
When does the margin scheme NOT apply?
Two main exceptions:
- If you (the seller) are VAT-registered AND claimed input VAT when you purchased the vehicle new (typically because the cab was a business asset of a limited company you operate). In that case the sale to the buyer is a standard VAT-able transaction at 20 per cent on the full price, and the buyer cannot use the margin scheme for the onward resale. This is the situation for some fleet operators but rarely for owner-drivers.
- If the buyer is not VAT-registered (a private buyer, a foreign buyer outside the UK VAT regime, certain export routes). In those cases the buyer simply pays you the agreed price, no VAT mechanism applies, and the buyer's onward sale is outside the UK VAT system entirely.
If you are unsure whether you are VAT-registered or whether input VAT was claimed on the vehicle when you bought it, your bookkeeper or accountant can tell you in two minutes by looking at the original purchase invoice. Worth checking before the sale rather than after.
What changes about the offer?
For a non-VAT-registered owner-driver selling to a VAT-registered specialist buyer (by far the most common case), the answer is: nothing visible. The price quoted is the price you receive into your account on collection day. There is no VAT element added to or deducted from the headline figure. The buyer handles the VAT-margin calculation on their onward sale; that is not your concern as the seller.
What you DO get from a properly-VAT-registered buyer is a clean purchase invoice in your name showing the agreed price, the buyer's VAT registration number, and the buyer's Companies House registration number. Keep this for your records; it is the proof of disposal date for tax purposes if you ever need to evidence when the vehicle left your books, and it is the document HMRC will ask for if they audit you on the year you sold.
If a buyer is reluctant to provide a purchase invoice on the day of sale, that is a warning sign. A legitimate VAT-registered buyer issues invoices as routine paperwork; the absence of one suggests the buyer is either not VAT-registered (which is unusual at the trade level) or is operating outside the VAT system in a way that may create issues for you down the line.
The export route and VAT
Some specialist cab buyers route a portion of their stock into the continental export market (Eastern Europe, North Africa, parts of the Middle East). For the driver-seller, the export route does not change the transaction in any visible way: you still receive the agreed price, you still get a purchase invoice from the UK buyer, and the export happens further down the chain after the cab has left your possession.
What changes is HMRC's view of the export transaction at the buyer's end: exports outside the UK VAT area are zero-rated under standard VAT rules, which means the buyer's margin on an export sale is treated differently from the margin on a UK domestic resale. From the driver's perspective this is invisible, but it does mean that buyers with active export pipelines can sometimes offer more competitive numbers on certain vehicle types than buyers focused only on UK domestic resale.
Common driver questions answered
A few specific things that come up in driver conversations more than they should, given how thinly the VAT margin scheme is explained elsewhere:
- "Should I be charging the buyer VAT?" Almost never. If you are not VAT-registered, you cannot legally charge VAT at all. If you are VAT-registered but the vehicle was bought without input VAT being claimed, the sale is outside the scope of the standard VAT regime and you do not add VAT to the price; the margin scheme handles it on the buyer's side.
- "The buyer said they'll pay £X plus VAT. Is that right?" Usually not, in the owner-driver case. Either the buyer means £X total and is using "plus VAT" loosely to describe their internal margin-scheme workflow, or the buyer thinks you are VAT-registered when you are not. Get the headline number confirmed as the amount you will receive into your account; if the buyer insists on a "plus VAT" framing and you are not VAT-registered, ask them to restate the offer as a clean number.
- "Does the margin scheme affect my personal income tax?" No. The margin scheme is purely a VAT mechanism that the buyer uses for their own onward sale. Your income from selling the cab is treated the same way it always would be (typically as a disposal of a business asset under self-employment rules, which is a separate conversation with your accountant).
- "Will I need to issue a sales invoice to the buyer?" Most specialist buyers issue the purchase invoice themselves (their document, your name as seller). You sign it on collection day. You do not typically need to issue a separate sales invoice unless the buyer specifically asks.
What to keep on file after the sale
The driver-side paperwork from a properly-conducted VAT margin scheme sale is short: the buyer's purchase invoice (one page), the V5C new-keeper slip carbon (one page), and the bank-statement entry showing the cleared payment (printable from your banking app). Keep all three for at least six years per HMRC's general record-keeping requirement.
Some drivers also keep the offer email and the licensing-surrender confirmation (if the cab was plated). Both are useful belt-and-braces evidence but are not strictly required.