Don't need to send another payment (risking double payment) is ideal especially if IRS would process the original e-payment on the original return. But that is the part I am not certain. I don't understand why Turbotax wants me to make another full payment in check and mail the voucher with it but the wording was if I don't send in the payment with the voucher, the amended return is not complete. Because of it, TT makes me feel the first e-payment arrangement is going to be dropped for some reasons unknown and the check payment is now important for the complete filing.
Would IRS be "smart" enough not to process the second payment if the first is already processed? If not, how to get a refund on that double payment?
