To enter property taxes on a second home without a mortgage -
Click on Federal Taxes (Personal using Home & Business)
Click on Deductions & Credits
Click on I'll choose what I work on (If shown)
Under Your Home
On Property Taxes, click on the start or update button
OR -
Click on Forms.
When in Forms mode click on the Taxes and Interest Deduction Worksheet (Tax & Int Wks) on the left side of the screen to open the worksheet.
Scroll down to Line 2c
Enter the amount of property taxes paid on the second home