Where do I enter the number of years that I designated a property as my principal residence?

Additional screen shots of the Principal Residence Designation section provided.

Provide the details of disposition of a principal residence under the “Income” tab > “Principal Residence”. Then provide the requested information for the disposition. Also indicate if you are designating all of the years owned or just part of this time as Principal Residence. Then provide the type of disposition and the screen following this will ask for the years owned and years designated.