What if the property is a detached guest house on your residential property. Shouldn't the mortgage interest expense be only be a percentage of the total property square footage AND further reduced to reflect that it was rent ready three months after I bought the home and for a total of only 45 days? I don't see that TT offers an auto-allocation to take these kinds of factors into account. I wonder if selecting a different situation (single family home vs converted vs short term rental) matters for auto-allocation or if I should be manually allocating to reflect proper proportions for rental expenses and personal deductions.
