These articles are for deducting space used for a home office. Airbnb hosts are
wrestling with how to calculate the percentage of the total area that can be deducted . This article does not address the same issue.
I rent a rooms in my house. Guests have access to everything in the house except my bedroom, my master bath, my office and a small private den. When calculating the area rented percent for my taxes, can I include half (or some other percentage) of the common areas? For example, if I can only claim I rent the bedrooms, it would be about 15% of my home. But since guests can and often do use my kitchen, my dining room, my living room, etc. I should be able to include that in the percent, making it more like 45%. We are still really struggling to get an answer to this.