01 · IncomeStart with realistic rent
Use a current long-term rental estimate for a comparable property, then adjust for bedrooms, bathrooms, condition, parking, furnishings, and local demand. Annual gross rent is monthly rent multiplied by twelve.
Monthly rent × 12 = annual gross rent
02 · CostsSubtract every recurring expense
Include the mortgage payment, property taxes, insurance, homeowners association dues, vacancy reserve, maintenance reserve, management, utilities, and any recurring service costs. A missing expense can make a weak deal look attractive.
Rent − operating costs − mortgage = monthly cash flow