Wrong parent claiming child on taxes.
Per my parenting agreement, it is my year to claim my child on my taxes. My x is telling me he is going to claim my child. We have 50/50 custody, so my child spends equal time at each parent’s house over the course of the year. What will happen with my tax return if he files first? What do I need to do to ensure I can claim my child and not get in trouble with the IRS?