After you file

The bigger problem for me is that my AGI in 2019 was under $150,000.  But I am pretty sure it’s going to be over $150,000 for 2020.  If the IRS uses my 2019 AGI, the third payment itself would be $5600.  If they use 2020 AGI, it will be significantly lower.  So I really wanted them to use 2019.  I can’t find a copy of my 2019 1040.  It is so unlike me because I save these things.  I am so frustrated with myself.