What is the debt service coverage ratio?

The debt service coverage ratio (DSCR) is a financial metric that measures whether a commercial property generates enough net operating income (NOI) to cover its total debt obligations. Lenders, investors, and property managers use it as the primary indicator of a property's financial health and borrowing capacity.

DSCR compares the income a property produces after operating expenses to the total amount required for debt payments, including both principal and interest. A higher DSCR signals more breathing room between what a property earns and what it owes.

Lenders typically include minimum DSCR covenants in loan agreements. If a property's DSCR drops below the agreed threshold, it may trigger a default or require additional equity from the borrower.

How do you calculate DSCR?

DSCR is calculated by dividing a property's net operating income by its total annual debt service. The formula is straightforward, but accuracy depends on using the correct inputs.

DSCR = Net Operating Income (NOI) / Total Debt Service

Net Operating Income (NOI): Total rental income minus operating expenses (property taxes, insurance, maintenance, management fees). Does not include debt payments or capital expenditures.

Total Debt Service: Annual principal payments plus annual interest payments on all property-related debt.

Worked example

In this example, the property generates $1.33 of income for every $1.00 of debt service. This exceeds the typical lender minimum of 1.25 and represents a 33% buffer above debt obligations.

What is a good DSCR in commercial real estate?

A good DSCR depends on the property type, market conditions, and the specific lender's risk appetite. In 2026, most commercial real estate lenders require a minimum DSCR of 1.25 for conventional loans (JP Morgan, 2026).

How do lenders use DSCR?

Lenders use DSCR to assess a property's ability to service debt at its current income level. It provides insight into cash flow health and the likelihood of qualifying for a loan. A DSCR of 1.00 indicates that the property has exactly enough operating income to pay its debt service costs. A DSCR below 1.00 suggests negative cash flow, indicating that the borrower may be unable to cover debt without outside sources.

What factors affect DSCR?

DSCR changes whenever the numerator (net operating income) or the denominator (total debt service) shifts. Property managers who track these variables proactively can identify risks before DSCR drops below covenant thresholds.

Occupancy rates and rental income: Vacancy directly reduces NOI. A 10% drop in occupancy on a property with thin margins can push DSCR below 1.25.

Operating expense changes: Rising property taxes, insurance premiums, or maintenance costs reduce NOI without changing debt obligations.

Interest rate movements: Variable-rate loans expose DSCR to rate increases. A 1% rate rise on a $5 million loan adds approximately $50,000 to annual debt service.

Loan amortization terms: Shorter amortization periods increase annual principal payments, reducing DSCR even when NOI stays flat.

Market conditions: Economic downturns can compress rental rates and increase vacancy simultaneously, creating a double impact on DSCR.

How do you use DSCR in property analysis?

DSCR is a valuable tool for property investors and managers:

• Property management software can help calculate and track DSCR over time, allowing for easy monitoring of a property's financial health.
• Investors use DSCR to assess an asset's ability to cover debt payments and overall risk profile.
• A debt service coverage ratio above 1.25 generally indicates that a property is generating sufficient income to meet its debt obligations comfortably.
• Consistently calculating DSCR allows investors to identify concerning downward trends before they become critical issues.

DSCR explained for investors

DSCR tells you how much financial cushion a property has above its debt payments. Think of it as the safety margin between what a property earns and what it owes each month.

If a property has a DSCR of 1.50, it generates $1.50 of net operating income for every $1.00 of debt service. That extra $0.50 per dollar is the buffer that absorbs vacancy, unexpected repairs, or market downturns without missing a debt payment.

When evaluating investment opportunities, compare DSCR across similar properties in the same market. A property with a DSCR of 1.40 in a high-vacancy market may carry more risk than one with a DSCR of 1.30 in a fully occupied submarket. Context matters as much as the number itself.