My fiancée and I are not married, but in 2017 we bought a house together. To maximize our deduction who should enter the house/interest on their tax return?

[SweetieJean]

You each enter what you actually paid yourself.

[Bsch4477]

If you itemize the one with the higher AGI should take the deduction normally, but you can try it both ways to see what is better for your particular tax situation.