Parents had a 50/50 physical custody agreement since divorce in 2009. We have alternated every other year and confirmed who would file the dependency credit. This year is my turn and out child lived with me at least 60% of the year. Our child's medical/dental insurance, bank accounts, drivers licence and school records all list my address.
Our child turned 18 in October 2017 and is a full time college student as of August 2017. I contacted the other parent to confirm I would claim the child this year and they said "Guess we’ll have fun with IRS audits." This leads me to believe they have already filed and claimed our child, or they intend to.
What should I do? Should I just file a paper return and attach documentation explaining the (possible) discrepancy. Should I wait for a rejection and/or audit notice?
