Claiming of Dependents & Amended Tax Return Question
I've been divorced since 2014. We are supposed to each claim one child as a dependent on our tax returns. I messed up last year and claimed both of the children as dependents on my 2016 return. (I know, don't ask. Still can't figure out how I did it! Lot of stuff going on, etc. One big Ugh which is really no excuse. Was probably gaming out different scenarios and then forgot to remove one dependent prior to filing). Anyhow, I do not receive alimony, only child support.
I offered to resolve the issue by allowing him to claim both dependents on his 2017 return. His tax preparer says that I must file an amended 2016 return. Is my solution acceptable? Thanks so much!