Does your court order state who can claim him? You can't just up and say I am going to claim our child this? Who is the custodial parent?
Generally, in order for someone to claim a child as a dependent, he or she must provide at least 50% of the child’s support during the tax year. For couples who are still married and living together, claiming kids as dependents is usually a slam-dunk.
Things get complicated, however, when parents divorce or separate. Now, only one of you can claim the dependent exemption. (The IRS will come down hard if both of you try to claim it; they cross-reference dependents' Social Security numbers to make sure taxpayers aren’t doing this.)
Who is the custodial parent?
The custodial parent signs a declaration (using IRS Form 8332) relinquishing his or her right to claim the dependent exemption, and the noncustodial parent attaches this declaration to his or her tax return. Using this form, the custodial parent can relinquish the exemption for one year, a number of years, or forever, depending on what the parties agree to.
If you relinquish the exemption, you are also relinquishing eligibility for the child tax credit. The IRS is very picky about Form 8332, and can (and often does) disallow the dependent exemption for the noncustodial parent if this form isn’t signed and attached to the tax return, even if the divorce decree or separation agreement allocates the exemption to the noncustodial parent. That means it’s very important for the noncustodial parent to attach a copy of this declaration to his or her return in every tax year in which he or she claims the exemption.
If the custodial parent refuses to sign Form 8332, the noncustodial parent can attach part of the divorce decree or separation agreement (the cover page, the page that discusses the exemption and the signature page) to his or her tax return to prove that he or she is entitled to the exemption. However, the IRS will accept this only if the decree or agreement doesn’t require that certain conditions be met before the noncustodial parent can claim the exemption. If there are conditions, the noncustodial parent must use Form 8332 or not get the exemption.
