Carl, thank you so much for such a thorough answer, I just have one more question: your chart shows "undergraduate" as a requirement for claiming a child as dependent, but TurboTax didn't ask me at any time my daughter's education level. I also checked the IRS page and it didn't include undergraduate studies as part of the criteria for being considered a student. Considering the circumstances identified in my original question, can I still claim my 23-year-old daughter who is in graduate school?
