If I understand you
correctly, you're talking about home mortgage interest that you pay. You can take an itemized deduction on Schedule A for the
mortgage interest you pay on a primary or second home. This is a good thing; it cannot raise the
amount of tax you owe. Here is a link
to IRS Publication 936, which discusses all aspects of this deduction.
https://www.irs.gov/publications/p936/ar02.html
