Debt service coverage ratio (DSCR) is a property’s net operating income divided by its total annual debt service, meaning principal plus interest payments. A DSCR of 1.25x means the property produces 25% more income than its loan payments require. It is the most widely used metric in CRE lending for assessing whether a property can service its debt.
How is DSCR calculated?
The formula divides net operating income by the year’s debt service:
DSCR = Net Operating Income / Annual Debt Service
Net operating income is the property’s revenue minus operating expenses, before financing costs. Annual debt service is the sum of the principal and interest payments due on the loan over twelve months. On an interest-only loan the debt service is the interest payment alone until amortization begins.
Illustrative example:
| Input | Amount |
|---|---|
| Net operating income | $1,500,000 |
| Annual debt service (principal plus interest) | $1,200,000 |
| DSCR | 1.25x |
A property generating $1.5 million in NOI with $1.2 million in annual debt service has a DSCR of 1.25x: it produces 25% more income than needed to cover its loan payments. A DSCR below 1.00x means the property’s income does not cover its debt payments, a situation that signals potential distress.
What DSCR do lenders require?
Lenders typically require a minimum DSCR of 1.20x to 1.30x at origination. The threshold is written into the loan agreement as a covenant and tested on an ongoing basis throughout the loan term, so the property has to keep clearing the bar long after closing, using its actual operating performance at each test date.
DSCR covenants interact with other loan provisions. A failed DSCR test triggers the remedy the loan documents attach to it: a cash sweep, a lock-box, or a restriction on distributions to equity. Knowing your DSCR across every loan in the portfolio, and forecasting where it is headed, is what keeps those provisions from becoming a surprise.
Why does the same property produce different DSCRs?
DSCR is deceptively simple as a formula and complex in application, because the result depends entirely on how the two inputs are defined. For NOI, lenders use trailing three-month (T-3), trailing six-month (T-6) or trailing twelve-month (T-12) periods, and each produces a materially different coverage ratio for the same property.
Debt service is the second variable. On a floating-rate loan the payment moves every time SOFR moves, so the DSCR changes with it. That is why lenders on floating-rate deals test DSCR using a stressed rate or require an interest rate cap that limits how far the payment can rise. The amortization schedule matters as well: a longer schedule lowers the annual principal component and lifts coverage.
How DSCR shows up in LoanBoss
LoanBoss runs DSCR and debt yield tests with each lender’s specific adjustments, whether the test is backward looking or forward looking, uses “greater of” statements, hypothetical amortizations, vacancy comparisons, tenant inclusion and exclusion, management fees or reserves. Accounting feeds and live rates refresh the ratio automatically, so coverage stays current across the portfolio without manual updates.
Frequently Asked Questions
What is a good DSCR?
Lenders commonly require a minimum of 1.20x to 1.30x at origination, and the loan’s covenant sets the level the property must hold afterward. A ratio of 1.00x means income exactly covers debt service; anything below that signals potential distress.
Does DSCR include principal?
Yes. Debt service is the sum of principal and interest payments due over the year. During an interest-only period, debt service is the interest payment alone, so the ratio is higher than it will be once amortization begins.
How often is DSCR tested?
The loan agreement sets the schedule. DSCR is tested at origination and then on an ongoing basis throughout the loan term, using the property’s actual operating performance for the trailing period the documents specify.
Why does T-3 NOI produce a different DSCR than T-12 NOI?
Each trailing period captures a different slice of the property’s performance, so the same property produces materially different coverage ratios depending on which one the lender uses. The loan documents state which definition applies at each test.
How does a floating rate affect DSCR?
Debt service on a floating-rate loan changes every time SOFR moves, so the DSCR moves with it. Lenders on floating-rate deals test coverage using a stressed rate or require an interest rate cap to limit the exposure.
Related Terms
- Net Operating Income
- Debt Yield
- Loan-to-Value
- Covenant
- Amortization
- DSCR vs. Debt Yield: Which Metric Actually Matters for Your Portfolio?
- DSCR and Debt Yield Tests with Lender-Specific Adjustments: The Full Catalogue
Part of the LoanBoss CRE Debt Glossary. For hedging-specific terms, see Pensford’s resources.
Sources
- LoanBoss CRE Debt Glossary