After re-reading your question---
".....not claimed by anyone..."
I suspect you are confused about filing as Head of Household. You must understand that unless you claim a blood-related person as a dependent, you cannot file as HOH. Whether the person is a qualified child or qualified relative does not make the difference. You must claim a dependent. Merely having someone who lives with you is not enough. If you are wanting to file as HOH you must have a qualified dependent--whether they are a child or not.
Am I Head of Household?
https://ttlc.intuit.com/questions/1894553-do-i-qualify-for-head-of-household
https://ttlc.intuit.com/questions/2900097-what-is-a-qualifying-person-for-head-of-household
If you qualify as Head of Household, when you enter your marital status (single or married filing separately) into MyInfo, and then enter your qualifying dependent, TurboTax will offer HOH as your filing status.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
