Be aware that the amended return must be sent from the same program that sent the original return so you cannot switch companies mid stream ...
My professional program just put out a notification today (8/7/20) saying the IRS will start accepting amended returns on 8/17 however there are some restrictions ... here is the email announcement from DRAKE :
2019 Amended Return E-file Available
Tax year 2019 amended returns can now be electronically filed in Drake Tax 2019. This feature is available in the most recent 1040 program update released on August 6. You can begin sending 2019 amended returns to Drake now, and the IRS will officially begin processing them on August 17.
- To e-file Form 1040-X, the 2019 tax return must have been e-filed.
- At present, if the amended return has a balance due, an electronic payment (PMT screen) must be submitted with the e-filed amended return. The option to mail the balance due payment will be available in an upcoming software release.
- Paper check is the only method for receiving a refund - the IRS does not currently offer direct deposit of refunds for amended returns.
- EIP (simple) returns that were filed for purposes of receiving a stimulus payment cannot be amended on paper or through e-file using Form 1040-X. To file an actual return after filing an EIP return, you must paper file the completed 1040/1040-SR with the literal "Amended EIP Return" printed at the top of the form. For more information, see KB article 16797: EIP - Amending to File Form 1040 or 1040-SR.
No. Only 2020. 2019 can only be printed and mailed.