Have no idea where to post this, yet this might well affect a lot of TurboTax users, if you are one of the 9.2 MILLION filers of 2019 returns that are still not processed (according to the IRS itself, as of March 6th), you may be unable to have your 2020 returns accepted if you file electronically and use your submitted 2019 return AGI. In such cases, the IRS directs that you submit an AGI for 2019 as "0" when you get to the verification steps.
Happy to relay in my case, my paper return (from over 4 months ago) has yet to be processed, (not even in the system yet) and so I entered "0" for agi for 2019 -- and happy to report it today worked (so far - return accepted). Have not seen this issue covered as yet anywhere else in TurboTax help.
