My Federal return was accepted last week and I received my refund this week. Just now I received in the mail a 1099-INT for $77 in interest, which I didn't report on my return. Do I need to do anything? My Federal return was accepted last week and I received my refund this week. Just now I received in the mail a 1099-INT for $77 in interest, which I didn't report on my return. Do I need to do anything?