I own a house and pay the property taxes but I don't live in that state nor do I rent it out (MN). My primary residence is another state where I don't have to pay rent or a mortgage (NJ).

[rems45natives]

My mortgage is paid off.  But can I I deduct property taxes? How does it work on state returns?  When filling out information in TurboTax , it wants to add it to the NJ return though property is in MN.  What state returns should I be filling out?

[Mike9241]

yes you can deduct the taxes if it is your second home (third homes are not allowed) however two points 1) taxes on schedule A are limited to $10,000 1/2 that if married filing separately. 2) your itemized deductions must exceed your standard deduction to be of any benefit. 

[rems45natives]

Thank you.  I'm a single filer and I don't have itemized deductions that are more than the standard deductions.