Our accountant in previous years took all our expenses (utilities, property taxes, linens, dishes, soap, etc) for the year and calculated our personal portion out based on the number of days the airbnb was available for rent (for us it's June, July and August every year). Our accountant then deducted our personal amount and the remainder was claimed as an expense against our airbnb income.
My question is, for things like sheets that we buy for sole use of the airbnb, should we not be deducting these items in full? Sheets, towels, pots, pans etc that we buy and are only used for the airbnb I believe should be expensed at 100%, but things like utilities, property taxes, and items we share (bulk purchases of soap or toilet paper) should be expensed according to the calculation explained in my first paragraph.
Does this make sense? Our accountant is a Chartered Accountant, so I take what she says at face value, but I still question if this is the proper way, or if it simply the easy way, which doesn't give us the maximum dollar amount we can (legally) expense?
I have researched but any article I find is not clear, it refers to percentage only, and combine this with what my accountant does, I feel it must be the percentage formula we must use even for bed sheets, but no where has it specifically addressed my question in a way that makes it 100% clear.