Can I claim a gf who is a stay at home mom to our daughter who I financially support ?

[BobB7]

Did you all live together during all of 2018?  Are you the owner of your residence or do you pay all the rent?

[cnote2525]

Yes to both of the questions you asked

[BobB7 · Accepted solution]

If they were with you all year, she has no income and isn't married and you are the father of the child then you can claim both the child and the gf and can file as Head of Household.