“What the appellant is really asking to do is to be let off its assessment for VAT which it actually received because HMRC has had a windfall at the expense of Rok, on the basis that Rok owes the appellant a different sum (i.e. the unpaid purchase price).”
“If the supply is for a consideration in money its value shall be taken to be such amount as, with the addition of the VAT chargeable, is equal to the consideration.”
“… it will be a matter of construction of the agreement between the parties to determine whether the customer is contractually liable to pay an amount equal to the VAT, if and when it turns out to be properly chargeable. Assuming that to be the correct construction, and if it emerges that VAT is chargeable on the supply, the supplier will probably then send a VAT-only invoice to the customer (which would be for£24 , if the agreed VAT-exclusive price were£120 ).”
“It is only if [the VAT that should have been added to the original price] cannot be recovered by the supplier from the purchaser that it becomes necessary to treat the original price as VAT-inclusive, in order to preserve the principle that the VAT on a transaction cannot exceed the amount actually paid by or due from the end customer.”