You can’t find out.
But, here’s what you do: If someone else claimed your dependent child inappropriately, and if they file first, your return will be rejected if e-filed.
You would then need to file a return on paper, claiming the child as appropriate.
How do I find out who claimed my child on their tax return?
Call the IRS support line at 1-800-829-1040 and inform them of the situation. Print your tax return from your eFile.com account, sign it, attach any required forms, and mail it to the IRS. The IRS will examine both returns, apply the tiebreaker rules, and inform you of the results. This process may take 8-12 weeks.
How do you find out if someone claimed you on their taxes?
To find out whether someone claimed you, file your income tax return. Refer to the IRS Publication 501 to verify that you qualify for the exemption. Even though you lived with your parents, the IRS sets limits to whether they can claim you as a dependent.
What happens if the non custodial parent claims child on taxes?
A non-custodial parent can not claim EIC for a child that he or she has been given permission to claim as a dependent by a custodial parent. The IRS will request documentation such as school records, birth certificates or medical records to verify eligibility of a child claimed by more than one taxpayer.
What is the penalty for illegally claiming someone as a dependent?
If the IRS concludes that you knowingly claimed a false dependent, they can assess a civil penalty of 20% of your understood tax. Failing to be honest by claiming a false dependent could result in 3 years of prison and fines up to $250,000.