I recently purchased some airline gift cards for use in business travel. They were 10% off, so I paid $450 and received a gift card for $500.  When I purchase the actual airline ticket, I would like to allocate the amount I paid from the gift card to the specific clients I'm going to visit.  However, the itemize function in the original expense doesn't allow me to do that. How do you suggest I record this?  In my personal finances, I would set up a separate account to transfer the value of the gift card to and then debit that account with each transaction as they occur. But I don't see an easy way to make the transfer in Books this way.