1Corinthians6:19

Hi, everyone. I am going to apply for "Removal of Conditions" (I-751) and then apply for N-400 early next year. I am almost 3 years living here in the USA and will file under 3 year rule. I started working last year and when I applied for my IRS Tax Return I applied as "jointly" together with my Spouse. In my case, I am the only one who is Officially working and my spouse can't provide a 3 year tax returns. I can send a 1 year tax return from last year I worked but I (we) couldn't provide the 2 year tax returns. We do have bank statements, phone bills, marriage certificate etc. Is it okay or acceptable that I could only provide a 1 year IRS Tax Return? Thank you!