So I have been Head of Household for years. Now my daughter is 21, but still lives at home. She's a hairdresser, and made $15,000 this year. She is filing her own taxes, and I understand that she can no longer be a dependent. However, my accountant of many years insists that I can still be Head of Household, since I paid more than half of her support while living here. I think he's wrong, and we got into a pissing match about it, and he's upset that I questioned his expertise. What do you think, can I still file Head of Household? Or do I have to file single?