Already filed must amend

[john5079]

I filed my state taxes electronically then discovered that I forgot a 1099 and owe more taxes. I've already authorized a deduction from my bank for the original taxes owed.  When I send in my amended form, do I add a check for the difference between the amount already authorized and the new amount due after the amendment?  I filed today then discovered my mistake almost immediately.

[Paul Curry]

I need to file an amended tax return with Turbotax...how do I do it.  I received a tax document after e-Filing my return.

[ChondelLO]

For instructions on how to amend your return, please click the link below.

How do I amend my 2019 TurboTax Online return? - Community