So are you allowed to claim your fiancé's child without being married? My fiancé tried to claim my son and we would get back a good bit but then today he found out they kept most of the money and he said something about they are sending a letter. Idk how it works but this is a major blow. We were going to pay off a bunch of bills that would leave us with 200 extra a month in our pockets, then pay for his mother's eye surgery and give some to my mom because she is struggling. Idk what we are going to do now.