I have a $2,000 quarterly federal tax payment to make and I notice on the IRS website that you can use a credit card, and one of the processors charges 1.87% for the privilege of using a credit card. But I have a credit card that gives a 2% cashback, either Fidelity Rewards, or Citi DoubleCash back credit cards. So I should be ahead by a little bit if I use either of these credit cards. Should I go this route? Especially since doing this will facilitate a minimum spend to gain a bonus.