I completed and paid my taxes in full last week here via e-file, and they had me fill out my bank account information. But I had to amend my taxes today because I received a form after filing - which lowered my taxable income. After my amended e-file was complete, the system told me to print a payment coupon and send a check to the IRS. Why is that? Didn't I already pay? I previously owed and paid $2500 but after my amendment I only owed $2200, so why do I still have to send a check to the IRS?
