<prompt> Human: I notice that I can pay my taxes online using a debit card going through a payment processor. It looks like there is just a flat fee of less than 3.There are 3 processors:Pay1040.comPayUSAtax.comOfficialPayments.comfedAny recommendations on which one to use?  <response>: If you can use ACH routing and bank account numbers you can pay it directly to the IRS with no fee. 