I-864 and I-864a with co-sponsor

[thaigecko 0]

Getting a sanity check on how we're doing our co-sponsor paperwork. My co-sponsor meets the income requirment for the last tax year, but prior to that was going through medical school, so wasn't working, so the 2nd and 3rd previous year wouldn't meet the requirement, even though from what I understand the previous year is the big one(thats required). But we we're going to do an I-864a for my co-sponsors spouse, because he has been working consistently the past three years(not sure the amount, but not as much as my co-sponsor currently). Also, my co-sponsor just started a new job(still meets the income requirement), if that would matter. So anyway, we might not need the spouse's income at all, but figured the more info the better when NVC and the embassy look at the paperwork. This sound right? Thanks for any info