My Fiance and I purchased a home in 2016. We are not married so we are filing separately. I wanted to make sure that only one of us can declare the purchase of the house.

[Hal_Al · Accepted solution]

You pretty much have a choice. One can claim it all or you can split it. It's usually best of only one claims it, allowing the other to use the standard deduction.

You have to meet the rules, which are:

1. You are legally obligated to pay it

2. You actually pay it. Paying from a joint account where you made sufficient deposits to cover the payments will usually meet this standard. However. paying from your own account would be a stronger audit defense.