You can deduct the property tax (real estate tax) that you pay on all the properties that you own. However, for 2018 through 2025, the total deduction for state and local taxes is limited to a maximum of $10,000 per year. The maximum applies to the total of real estate tax, personal property tax, and either state and local income tax or state and local sales tax.
You can deduct mortgage interest on only your own primary home and one other home.
