I made this mistake in the initial setup for turbotax 2017. The VERY first question dealing to whether or not I want Turbotax to access my calendar. I change my mind. I do NOT want them accessing my computer's calendar. What do I do to change this. running macOS.
To Grant or Deny TurboTax access to your calendar:
On a Mac: ?Go to "System Preferences" & select "Security & Privacy". Under the Privacy tab choose Calendar and then either check or uncheck as you wish.
On a Windows or Android based pc I suspect that there is an equivalent eg control panel feature.