A director of a closed company bought a laptop for £400 on a company card for business use. The laptop's original price was £500. It was reduced by £100. This £100 reduction is shown as a gift voucher on the invoice. This reduction is a trade-in of the owner's private old laptop. What is the correct accounting treatment of this transaction? Will there be any tax implications that would need to be reported to HMRC, for instance on P11D? Thank you.