How do i file for head of household?

[KiaraE]

As long as you:

1. Were unmarried as of December 31, 2017 and
2. Paid more than half the cost to run your (or a qualifying parent's) home in 2017 (rent, mortgage, utilities, etc.) and
3. Supported a qualifying person.

TurboTax will automatically change your status to Head of Household.