Tax Year Prior to 2020: My house is in my name solely. If i file married filing separately can i still itemize the interest on the house?

Yes, you can.  However,  if you itemize deductions on Schedule A, your spouse must also itemize deductions on Schedule A.  Also, filing separately reduces or eliminates many tax credits.

Is it better for a married couple to file jointly or separately?

https://ttlc.intuit.com/replies/3288477

Married Filing Separately in a Community Property State