It sounds like Turbotax(TT) has a logical error in the amended return instructions, not recognizing I already made payment arrangement in the original filing(which is supposed to process today). TT did acknowledge it is unusual to have the same payment amount with the amend return but it instructed me to mail in a check for the same payment amount instead of 0 to "complete the amend return".
I am almost certain now I would double pay following TT's instructions.
As a suggestion, it would be a good idea someone from the TT programming team can look into this to avoid customers running into same problem down the road. I don't think anyone wants to double pay their tax simply by following TT's instructions.
