Cannot e-file 2019 amended return, there is only an option for file by mail

[EbonyA]

Turbo Tax facilitates the amendment process online however the IRS requires the 1040-X form to be printed and mailed in after the fact. The link below provides further details:

Amending a tax return

[fanfare]

to e-File 1040X is a "new feature".

IRS probably hasn't set it up for all possible scenarios, 

such as, previous years.

Also e-file of 1040X for 2020 is  not turned on yet in TurboTax.

If you are lucky, when 2020 is turned ON, 2019 will be an option also.

[daylightblue]

Didn't IRS already announce they are setup to accept 2019 amended tax return electronically?

https://www.irs.gov/faqs/electronic-filing-e-file/amended-returns/amended-returns

[daylightblue]

Doesn't IRS allow 2019 1040x to be filed electronically?

https://www.irs.gov/faqs/electronic-filing-e-file/amended-returns/amended-returns