DSCR Loan Calculator
Use this Debt Service Coverage Ratio (DSCR) calculator to underwrite commercial real estate investments. Estimate your Net Operating Income (NOI), annual debt service, and maximum loan capacity based on institutional lender requirements.
Quick Answer: How do you calculate DSCR?
Specifically, the Debt Service Coverage Ratio (DSCR) is calculated by dividing a property’s Net Operating Income (NOI) by its Annual Debt Service. For example, a commercial property generating $125,000 in NOI with $100,000 in annual mortgage payments has a DSCR of 1.25, which is the standard minimum required by most institutional lenders.
1. Property Income & Expenses (Annual)
2. Loan Terms
Property DSCR
How to Calculate DSCR for Commercial Real Estate
The Debt Service Coverage Ratio (DSCR) is the primary underwriting metric used by commercial real estate lenders and private equity groups to assess loan risk. Instead of looking at personal income (DTI), lenders look strictly at the cash flow generated by the investment property itself.
To calculate your ratio, our engine executes two core steps based on standard financial modeling practices:
- Calculate Net Operating Income (NOI): Subtract the vacancy loss and total operating expenses (property taxes, insurance, maintenance, property management) from the gross annual rental income.
- Calculate Annual Debt Service (ADS): Multiply your estimated monthly principal and interest payment by 12.
- Determine the Ratio: Divide the NOI by the ADS.
Example: Multifamily Property Underwriting
Suppose you are evaluating a commercial multifamily property with the following financials:
- Gross Rental Income: $150,000 / year
- Operating Expenses & Vacancy: $42,500 / year
- Net Operating Income (NOI): $107,500 / year
- Annual Debt Service (Mortgage): $85,000 / year
DSCR Calculation: $107,500 ÷ $85,000 = 1.26x DSCR
Because the ratio is greater than 1.25, the property generates sufficient cash flow to satisfy most institutional commercial lenders.
Commercial Loan DSCR Benchmarks
Different lenders carry varying risk tolerances. While conventional commercial lenders demand a cushion, private debt funds may accept lower ratios in exchange for higher interest rates. Organizations like Fannie Mae Multifamily and regional banks typically adhere strictly to these minimums:
| DSCR Range | Lender Classification | Approval Probability |
|---|---|---|
| 1.25x or higher | Standard Institutional / Agency (Fannie/Freddie) | High (Favorable rates and terms) |
| 1.15x to 1.24x | Regional Banks / Credit Unions | Moderate (May require larger down payment) |
| 1.00x to 1.14x | Non-QM Lenders / Private Debt Funds | Low (Strictly scrutinized, high interest rates) |
| Below 1.00x | Negative Cash Flow | Denied (Unless heavily subsidized by borrower reserves) |
Who Should NOT Use a DSCR Loan
DSCR loans are designed strictly for income-producing investment properties. This calculator and loan product are NOT applicable if you are:
- Purchasing a primary residence (you must qualify via personal DTI).
- Executing a heavy “fix-and-flip” project with zero current rental income (Hard Money or Bridge loans are required).
- Buying raw land with no immediate plans for tenant occupancy.
Frequently Asked Questions
What is a good DSCR ratio for a commercial loan?
Most commercial real estate lenders require a minimum DSCR of 1.20 to 1.25. A DSCR of 1.25 means the property generates 25% more Net Operating Income (NOI) than is required to cover the annual mortgage payments, providing a safety buffer for the lender.
How do you calculate DSCR?
To calculate the Debt Service Coverage Ratio (DSCR), divide the property’s Net Operating Income (NOI) by its Annual Debt Service. NOI is the total revenue minus operating expenses, and Annual Debt Service is the total principal and interest paid over 12 months.
Can I get a DSCR loan with a 1.0 ratio?
A DSCR of exactly 1.0 means the property’s income equals its debt obligations, leaving zero cash flow. While some aggressive non-QM lenders may approve a 1.0 DSCR, it typically requires a larger down payment (30% or more) and carries a higher interest rate.