Are you Single? Are you married and lived with your spouse at any time during the last six months of the year?
Among other criteria, in order to file as Head of Household, you must have a dependent--either a qualifying child or a qualifying relative. For information concerning the head of household status, please see this TurboTax Tax Tip Video,
If you haven't already filed your return, you can change your filing status from Single to Head of Household by following these steps:
If you have already filed your return, you can amend it to reflect the Head of Household filing status. Please see the following FAQ for amending your return:
How to amend (change or correct) a return you already filed