Bigger pockets calculator question

[David Ptak]

Hi folks. I'm hoping others out there would benefit from the answer to this question and that someone out there may have some insight. 

I'm using the bigger pockets house flipping calculator and I'm trying to determine what to include in the holding costs. what's unique about this flipping scenario is that I plan to hold the property for about two years before selling. In that time the person living in the property will be doing the improvements. This person/co-investor will also be contributing to the mortgage. I plan to get a conventional loan for the period we are holding the property. So the question is in calculating the return, what should the monthly holding costs include? Should it include the entire mortgage and other costs or just the interest and costs. For that matter what should be included in the holding costs if it were a hard money loan. Would principal be included in the holding costs?

Any advice would be greatly appreciated!