Use this google sheet/excel file to calculate the cash flow of a potential rental property based on estimated numbers to determine if it's a good deal. Better yet, you can work backward from your desired cash flow to find what you should pay for a property. This will work for commercial real estate but it is designed specifically for residential real estate rental properties. This download includes a .CSV file for Google Sheets and a .xlsx file for Microsoft Excel You will also get FREE updates, forever. Every time an update is made to this calculator, you will get it sent to you via email. Every update, forever, for just $1.99