There are several options to pay your taxes (personal or business, estimated, etc...) with a credit card. The cheapest "convenience fee" you'll find on any of the federal tax sites is 1.87% at payUSAtax. There are really three situations where paying this fee makes sense. Keep in mind in both situations that having the cash to pay off the credit card bill is paramount - if you're paying interest and fees on top of the 1.87%, you are not going to come out ahead.
Pay federal taxes at payUSAtax for 1.87% |