Hi Flyingfree56!
If you are using Turbo Tax Online and trying to edit your rental property information, you may do the following:
1. On the left navigation click "Income" and then "Rental Properties" and finally "Rental Summary"
2. On that page you should see your rental properties listed. Select "edit" beside the property where you would like to edit the property tax paid
Hope that helps! Let me know if that didn't answer your question and I'd be happy to help further!