<prompt> Human: Im 23 years old I was 22 for most of 2017 and my dad is claiming me as a dependent on his taxes this year, preventing me from claiming myself. I was a college student until May of 2017, and then began a full-time job in New York City during the first week of July. While I was a college student, my dad provided most of my financial support. Since I started working full-time, I have provided the majority of my financial support and earned over 30,000 in wages for the half of the year that I was employed full-time. My cost of living in the second half of the year while I supported myself was significantly higher. Is my dad still allowed to claim me as a dependent? I dont want to pick a bone with my dad unnecessarily, but I would also like to maximize the amount of money Im eligible to get back as a return. What are my options?EDIT: To clarify, on a dollar per dollar basis, I contributed more to my financial support than my dad did.Assistant: You started work in July. So he was supporting you for six months of the year. Then you started supporting yourself for the majority which tells me he was still supporting you to some degree. He would like to reap the benefits of the support he provided for the first half the year and part of the second half of the year. That Seems fair to me. Human: Right, which is why Im coming here it seems like theres some grey area. My question is is the over half of your support based on monetary value or time? In terms of financial cost, I paid well over half of my expenses for the year because the cost of living in New York is so high.  <response>: Financial cost, dont forget to take into account the cost of your education for the first half of the year if he was footing that bill. Is he still paying your health insurance, phone bill, auto insurance, etc? If so take those into account as well. 