As per your reply "you may enter $ 0 (zero)". How is this beneficial? (note: I've seen both statements 'enter zero' and 'you MAY enter zero' on the IRS website just now).
If 2019 was filed and 'not yet processed', and the IRS is processing returns in the order they came in, why enter zero for the 2020 return and not the correct AGI from the 2019? I could understand if 2019 was not filed yet (not in the queu to be processed), then filing 2020 makes sense to use zero AGI. But if 2019 is already in the queu, by default 2019 should be processed first, so by the time they get to 2020 return the AGI will be a match.
