If I rent 1 out of 4 bedrooms in my house, then 25% is rental and 75% is personal.
In filling out Schedule E, I use my house address in Line 1a.
Line 1B is for "Type of Property".
How do I indicate that it is a room in my house, and that it is 25% of the house?
I use that fraction to calculate the expenses, but where do I specifically state that that is the portion of house being rented?