Hi there,
You would enter these separately, as 2 home offices. In the product there is the ability to enter 2 separate home offices. Once you enter the first you will see a landing table for the "home office summary" where you can add a new one. If you use the separate structure exclusively and regularly for your business, you qualify to deduct home office expenses. It does NOT have to be your principal place of business or the place where you meet patients, clients, or customers.
After you answer the first 2 questions for the 2nd home office (outbuilding), you will see the next question "Do any of these apply to your home office? Check the box "This home office is a separate structure"
When you arrive at the "business conducted in home office" screen you will pro-rate the 100% between the two however you feel allocation is best (say 50-50)
So long as you can say you worked at least 15 days in the one month span on 2016, the product should allow you to take 2 home offices.
