I should lead with the fact that I will have a joint sponsor since I have been in grad school six months out of the last two years, so my income is not enough to sponsor my husband (CR1, Canada --> US, NVC stage)
I am exclusively self-employed, and for that, the instructions say to include a 1040 along with my IRS transcripts. But I'm not clear on whether that refers to a 1040 for each of the three years that I intend to submit, or just the most recent. I have a copy of my 1040 for this most recent year, but not the last two.
I'm even considering waiting a month so that I can have 2020 be the most recent year, because requesting a copy of a 1040 is expensive :/