In the past, I have been able to claim her as a qualifying person to make me eligible for head of household filing without actually claiming her as a dependent. This will be the first year filing our taxes myself - we've paid a preparer in the past. I'm trying to find out how to do this in TurboTax. Her alimony is $4800 for the year, so with social security, her total income is less than $16K. I pay all the household expenses, so I definitely meet the "more than half her support" criteria.