@Renquist188 -here is the rule:
in order to get the stimulus payments at this point in the game, you must file a 2020 tax return. There is no other way.
as far as 2018 and 2019 go, if you owe money, you owe. There is no statute of limitations on your obligation to pay to the IRS - and they will add on fees and penalties to whatever is owed.
but if you are due a refund, then for 2018, you must file by April 15, 2022 otherwise you give up the rights to the refund. For 2019, you just file by April 15, 2023 otherwise you give up the rights to the refund.
Those are the rules.
