<prompt> Human: I know this is my fault for not research further and not communicating well with the Mother-in-Law MIL. I and my husband have been living together for almost 4 years, while his mom is living with his stepdad in another house. I was a full time student non-citizen and got a job in October 2016. It was internship and I got a W-2 although its not a lot. At the same time, my husband has been a at least half-time student at a university. He doesnt work and his insurance is paid by his mom. I filed my tax return with him ad dependent using his 1098-T and my W-2, on TurboTax. Around the same time, his mom claimed him as dependent on paper. On TurboTax, it says my file was accepted and being processed. Now my concern is: since there is 2 people claiming the same dependent, how is it going to work out? Will my husband be affected by this, as in his insurance Obamacare and his FASFA? Will there be any penalty for me or MIL? Is there any complications I need to take care of worried about? Thank you.Assistant: One of you will have to file an amended return, as one of you couldnt actually claim his as a dependent. The other wont have to do anything, as they filed correctly.Does your husband live with his mom at least half the year? Is your husband younger than 18 years old or younger than 24 years old if a full-time student during at least five months of the year? If the answer to any of these is no, then his mom couldnt claim him.Human: No, my husband didnt live with his mom for years. He is younger than 24 older than 18, full-time student for the first half of the year. What Im worrying is his insurance. MIL said she been filing him because she paid his insurance.  <response>: And thats not a qualifying reason for her to claim him. 