Should I use my cashback credit card if the retailer charges me to use a credit card?
Probably not, but it depends on what you want to achieve. It is almost certain that the charge for using the credit card will be greater than your cashback so it would cost you money rather than earn you money. However, if you need to make the purchase using a credit card anyway – to give you a couple of week’s cash flow – then using a cashback credit card would be better than using a non-cashback card. Remember! you still need to pay it off at the end of the month to avoid interest charges.