Debt Service Coverage Ratio Calculator
Calculate the Debt Service Coverage Ratio (DSCR), annual and monthly cash flow cushion after debt service, and lender coverage tier for rental and commercial real estate loans.
Net Operating Income & Annual Debt Service
Coverage Tier: Strong (≥ 1.25x)
Debt Service Coverage Ratio (DSCR) Formula
DSCR = Annual Net Operating Income (NOI) รท Annual Debt Service- Annual Net Operating Income (NOI) = Annual Gross Rental Income minus Vacancy and Operating Expenses (excluding debt service).
- Annual Debt Service = Total annual principal and interest payments required on the mortgage loan.
- Income Remaining After Debt Service = Annual NOI โ Annual Debt Service.
Step-by-Step Worked Example
Calculation Steps:
- DSCR = $36,000 รท $26,400 = 1.36x
- Annual Income Remaining After Debt = $36,000 โ $26,400 = $9,600/year ($800/month)
- Coverage Tier = Strong (โฅ 1.25x)
How to Use This Calculator
- 1Enter the propertyโs Annual Net Operating Income (NOI).
- 2Enter the total Annual Debt Service (monthly mortgage payment multiplied by 12).
Assumptions & Limitations
- A DSCR of 1.00x means operating income exactly covers debt payments with zero cash cushion; most commercial and DSCR lenders require 1.20x to 1.25x or higher.
Frequently Asked Questions
What is a good DSCR for an investment property loan?
Most commercial banks and agency lenders look for a minimum DSCR of 1.20x to 1.25x, meaning the property generates 20% to 25% more Net Operating Income than required to pay the mortgage. Some specialized residential DSCR lenders allow ratios down to 1.00x with larger down payments.
How can I improve a propertyโs DSCR?
You can increase DSCR by raising net operating income (increasing rents or reducing operating expenses) or by lowering annual debt service (making a larger down payment, buying down the interest rate, or choosing a longer amortization period).
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