Just married at the end of the year and we both had separate primary residences for most of the year. How do we handle that when using married filing jointly?

My husband and I got married at the end of 2019.  We both owned our own home which we lived in as our primary residences until we got married.  How do we handle the property tax and interest deductions on our homes for 2019 when we file using "married filing jointly"?