US Immigration from South Africa

Hi good people.

I was reading the rules on the I-864 form and it states that - The I-864 is the Affidavit of Support form that requires copies of the petitioners *past 3 U.S tax returns* (or tax transcripts)

What if I the spouse has Only been in the US for 2 years and do not have a 3rd year tax return what do we do. Has anybody ever been in such a situation.

Thank you in advance.

How everyone please help me understand because I have googled and research with various information I am not to sure of the real facts where do you submit the form I-864 is it included in the initial application when you start of as a petitioner or do you wait until they actually request for it. When does one actually fill and submit this form please please help.

I ve been trying to fill out the I-130 for my stepson but am hitting a roadblock on something seemingly simple. He has visited the US once before on a visitor visa but when I attempt to access his I-94 number online it says not found. I have multiple times gone through and followed the instructions in the FAQs to try variations on his name and still nothing so I filled out the form for assistance twice now with no answer after 2 weeks. Can I just attach a copy of his visa and the passport stamps with an explanation to his I-130?