Landlord Cash Flow Calculator
Calculate your rental property's monthly and annual cash flow by entering all income sources and expenses below.
Income
Financing
Operating Expenses (Monthly)
Formulas Used
Vacancy Loss = (Gross Rent + Other Income) × (Vacancy Rate / 100)
Effective Gross Income (EGI) = Gross Rent + Other Income − Vacancy Loss
Management Fee = EGI × (Management Fee % / 100)
Total Operating Expenses = Property Tax + Insurance + HOA + Maintenance + Management Fee + Utilities + Other Expenses
Net Operating Income (NOI) = EGI − Total Operating Expenses
Monthly Cash Flow = NOI − Mortgage Payment (P&I)
Annual Cash Flow = Monthly Cash Flow × 12
Assumptions & References
- Vacancy rate represents the percentage of time the property is unoccupied; the national average is approximately 5–8% (U.S. Census Bureau, Rental Vacancy Survey).
- Property management fees typically range from 8–12% of collected rent (National Association of Residential Property Managers).
- Maintenance and repairs are commonly estimated at 1% of property value per year, or $50–$150/month for a single-family home.
- Mortgage payment entered should be principal and interest (P&I) only; taxes and insurance are entered separately.
- NOI is calculated before debt service (mortgage), making it useful for comparing properties regardless of financing.
- Cash flow is after all operating expenses and debt service, representing actual money in your pocket each month.
- This calculator does not account for depreciation, income tax implications, or capital expenditure reserves (CapEx). Consider adding 5–10% of rent for CapEx reserves.
- Reference: Investopedia — Net Operating Income (NOI); BiggerPockets Rental Property Analysis guides.