If a rental situation is owner-occupied and areas shared by lodgers and the owner are prorated for tax purposes, can an unfinished basement, treated as a common area to all equally, also be written-off on a pro-rata-share basis as a business expense?
- Not a legal bedroom (nor to be used as one).
- It would simply be a common area to anyone who resides there for any purpose ie. recreation, storage, hiding from tornadoes, etc.
- In Michigan, USA