Debt Yield vs DSCR: How the Metrics Differ

Debt yield and debt service coverage ratio (DSCR) are commercial real estate loan metrics, but they answer different questions: debt yield compares a property’s net operating income with the loan balance, while DSCR compares that income with required debt payments. This calculator computes both from annual net operating income, the loan amount, and annual debt service, so you can see how the measures differ for the same property and financing.

Formula

Debt yield = annual net operating income (NOI) ÷ loan amount × 100. NOI is the property’s annual operating income after operating expenses, before debt payments and generally before income taxes, depreciation, and amortization. Loan amount is the principal balance being evaluated. Debt yield is expressed here as a percentage.

DSCR = annual NOI ÷ annual debt service. Annual debt service is the required principal and interest payments over a year, based on the lender’s measurement convention. DSCR is a ratio, often written as a number followed by “x.” For both calculations, NOI, loan amount, and debt service must use the same currency; the two annual figures must cover the same period.

The calculator uses these symbols: NOI = annual net operating income in dollars; loan = loan amount in dollars; and ds = annual debt service in dollars. It reports debt yield as a percentage and DSCR as a multiple. The inputs must be positive, since dividing by zero or a negative loan balance or debt-service amount would not provide a meaningful result.

Worked Example

Using the defaults—annual NOI of $120,000, a $1,000,000 loan, and annual debt service of $90,000:

• Debt yield = $120,000 ÷ $1,000,000 × 100 = 12.00%.
• DSCR = $120,000 ÷ $90,000 = 1.3333…, which rounds to 1.33x.

The two results describe the same property and loan from separate angles. The first relates income to principal outstanding; the second relates income to scheduled payments. Neither calculation alone establishes whether a lender will approve a loan or what terms will apply.

Assumptions

• NOI and debt service cover one full year and use consistent accounting periods.
• Loan amount is the balance used for the debt-yield calculation, not necessarily the original amount advanced.
• Annual debt service is entered as a supplied figure; the calculator does not derive it from an interest rate or amortization schedule.
• Operating income and expenses are represented by the NOI figure; the calculator does not separately model vacancies, reserves, fees, taxes, insurance, or other items.

What Each Metric Measures

Debt yield indicates the annual NOI generated for each dollar of loan principal. At a 12% debt yield, for example, $120,000 of NOI corresponds to $1,000,000 of debt. It does not depend directly on the loan’s interest rate or repayment schedule. That can make it useful for comparing a property’s income with the amount being borrowed, even when financing structures differ.

DSCR measures the income available to cover scheduled debt service. A DSCR of 1.33x means NOI is about 1.33 times annual payments, leaving a margin of approximately $30,000 in the example before considering any other uses of cash. A ratio of 1.00x means NOI and the measured debt service are equal; below 1.00x, NOI is less than those payments under the figures entered.

How to Read Them Together

Debt yield and DSCR can move differently because only DSCR directly includes the amount of scheduled debt service. Consider the same $120,000 NOI and $1,000,000 loan, but imagine annual debt service of $100,000 instead of $90,000: debt yield remains 12%, while DSCR falls from 1.33x to 1.20x. A change in financing cost or amortization may alter annual payments without changing the property’s NOI or loan principal.

Conversely, a change in the loan balance affects debt yield even if the property income and annual payment figure entered stay constant. For example, a larger balance reduces debt yield. In actual financing, however, loan size, interest, amortization, and debt service are related; changing one may affect the others. This calculator treats all three inputs independently to show the definitions, not to model a loan offer.

Both measures depend on the NOI figure, so inconsistent or optimistic NOI assumptions can distort both results. Lenders may define eligible income, expenses, reserves, or debt service differently. For a meaningful comparison, use figures calculated on the same basis and check the lender’s definitions.

When to Use Each Measure

Debt yield is useful when the question is how much property income supports the loan balance, without directly incorporating repayment terms. DSCR is useful when the question is whether income covers the scheduled payments included in the calculation. A property owner, analyst, or reader reviewing a financing scenario may look at both because they reveal different risks: principal relative to income and payments relative to income.

To compare two scenarios, keep the NOI calculation consistent and update the loan amount and annual debt service for each scenario. Do not interpret a higher value on one measure as a complete evaluation: the metric leaves out factors such as the property’s condition, future income changes, refinancing assumptions, and the lender’s underwriting methods.

Common Misunderstandings and Limits

• They are not interchangeable. Debt yield is a percentage based on loan principal; DSCR is a multiple based on debt service.
• DSCR is not simply interest coverage. Annual debt service may include both principal and interest, but a lender’s exact calculation should be confirmed.
• Neither is a return on investment. Debt yield does not measure an owner’s equity return or account for the purchase price.
• NOI is not cash flow after financing. Debt payments are excluded from NOI and then considered separately in DSCR.
• Rounding matters at the margin. Results are rounded to two decimal places; calculations or underwriting decisions may use more precise figures.

The calculator is a simple arithmetic comparison, not a full commercial property underwriting model. It does not estimate loan proceeds, interest rates, eligibility, future property performance, or a lender’s required thresholds. Obtain the definitions and input figures applicable to a specific transaction from its lender or loan documents.

Frequently Asked Questions

Is debt yield the same as DSCR?
No. Debt yield is NOI divided by loan amount; DSCR is NOI divided by debt service. One is a percentage and the other is a coverage multiple.

Can debt yield be calculated without an interest rate?
Yes. The basic formula uses annual NOI and the loan amount, not the interest rate or payment schedule.

Does a higher DSCR always mean a higher debt yield?
No. DSCR also depends on annual debt service. A change in payment structure can change DSCR while debt yield stays the same, if NOI and loan balance do not change.

What counts as debt service for DSCR?
It generally refers to required principal and interest payments over the measurement period, but calculation conventions can differ. Use the definition specified for the loan or analysis.

Why might a lender’s DSCR differ from this calculator?
The lender may use a different NOI calculation, include additional payment obligations, or apply different timing and underwriting conventions. Confirm the inputs and method before comparing results.

This result is an estimate for educational use; the lender’s disclosure gives the exact figures.

Related

• Cost to Refinance a Loan: Calculator and Benefits
• Cost to Refinance a $200,000 Loan? Estimate It
• Cost to Refinance a Home Loan: Fee Breakdown

in noi | Annual net operating income (NOI) | $ | 120000 | 0 | 1000000000
in loan | Loan amount | $ | 1000000 | 0.01 | 1000000000
in ds | Annual debt service | $ | 90000 | 0.01 | 1000000000
out dy | Debt yield | % | noi / loan * 100 | 2
out dscr | Debt service coverage ratio (DSCR) | x | noi / ds | 2