but I’ll give it anyway. File your taxes now. Then track down that statement (call BOA). File an amended return (very easy). (If your interest payments are ~$600/month [you should have some idea what they were] x 3 then your “income” would be reduced by ~$1800.
Your tax bill would be reduced by xx% of that $1800 [whatever your tax rate is]. Could be anywhere between $180 and $400. I think that is worth the two hours work tracking down your interest and filing an amended return.