Debt Yield vs DSCR: Why the Two Ratios Can Tell Different Stories

Debt yield and DSCR are easy to confuse because both start with net operating income. The difference is what they compare that income against.

Debt yield compares NOI to the loan balance. DSCR compares NOI to annual debt service. That one difference is why the two metrics can point in different directions on the same deal.

Debt Yield = NOI / Loan Amount
DSCR = NOI / Annual Debt Service

The short version

Debt yield is term-neutral. It ignores interest rate and amortization. If a property has $1,000,000 of NOI and an $11,000,000 loan, the debt yield is 9.09% no matter how the loan is structured.

DSCR is payment-sensitive. A lower interest rate, longer amortization period, or interest-only period can improve DSCR because annual debt service falls. The property did not produce more income, but the payment burden changed.

Why lenders use both

DSCR answers a practical cash-flow question: can the property pay the mortgage this year? That matters because a loan with weak payment coverage can default even if the collateral looks valuable.

Debt yield answers a harder credit question: how much income protects the lender relative to the dollars advanced? That matters because loan terms can change, rates can reset, and appraisals can move.

Example: same DSCR, different risk

Imagine two properties each showing a 1.25x DSCR. One loan is sized at 5.50% over 30 years. The other is sized at 7.25% over 25 years. The DSCR can be the same, but the debt yield will often be different because the loan balances required to create those payments are different.

That is why a lender may like the DSCR and still reduce proceeds when debt yield is thin.

When DSCR usually binds

DSCR tends to bind when interest rates are high, amortization is short, or NOI is low relative to the requested loan. In those cases, annual debt service consumes too much of the income stream.

Use the DSCR calculator when you want to test payment coverage and max loan amount at a target coverage ratio.

When debt yield usually binds

Debt yield often binds when a lender requires a firm income floor, especially in CMBS, bridge, or higher-risk transactions. It can also bind when an appraisal supports more debt than the income justifies.

Use the debt yield calculator when you want to know whether NOI supports the loan request before loan terms are negotiated.

Which metric matters more?

Neither one replaces the other. A lender can approve only the loan amount that clears all required tests. If DSCR supports $12 million but debt yield supports $10 million, the debt-yield number controls. If debt yield supports $12 million but DSCR supports $10 million, DSCR controls.

Debt yield and DSCR are not competing formulas. They are different lenses on the same credit decision: one measures income against the loan balance, and the other measures income against the loan payment.