I'm purchasing a new car (personal purchase, nothing to do with our LTD company) and I would like to know if there is a legitimate way I can use our company credit card to pay part of the cost. £500. I want to take advantage of the added protection this gives me as even a partial payment covers the full purchase (thanks Martin Lewis for the tip!), so curious if I could use the Amex and knock the £500 off the DLA total that is owed to me,m. I assume I would have to adjust tax also, but of course if it's an absolute no-no I won't bother- just thought I would check as I don't own a personal credit card.