It said payment has to be between 2/12 and 5/17/2021 to be considered timely. But I filed my 2020 return 7/4/2021 and I am amending it as of right now. Doesn't matter what date I put in (today, past, etc...) TUrbotax kept saying there is a mistake on my form and I can't e-file.
Did someone have the same issue