Debt Yield

What Is Debt Yield?

Debt yield strips away the noise of financing terms and answers one question: if the lender had to take back this property today, what return would the NOI generate on the outstanding loan balance? The formula is straightforward: NOI / Loan Amount. A property generating $240,000 NOI with a $2.4 million loan has a 10% debt yield. That means the lender earns a 10% return on their exposure if they foreclose and operate the property. CMBS lenders typically require 8–12% minimum debt yield, with 10% being the most common threshold. Unlike DSCR, debt yield doesn't change when rates move—a critical advantage in volatile rate environments. A deal with a 1.30 DSCR at 5% interest might only have a 1.05 DSCR at 7.5%, but the debt yield stays the same because neither the NOI nor the loan amount changed. This stability is why debt yield has become the binding constraint in most commercial loan underwriting since 2022.

Debt yield is the ratio of a property's net operating income to the total loan amount—expressed as a percentage—measuring loan risk independently of interest rate, amortization period, or loan term.

At a Glance

Formula: NOI / Loan Amount × 100
Common lender minimum: 10% (range: 8–12% depending on asset class and lender)
Key advantage: Rate-independent—doesn't change with interest rate or amortization
Typical CMBS requirement: 10% minimum debt yield
Bank/credit union range: 8–9% minimum (less strict than CMBS)
Why it matters now: In high-rate environments, debt yield often becomes the binding constraint over DSCR

Formula

Debt Yield = NOI ÷ Loan Amount

How It Works

The calculation. Take a 50-unit apartment building generating $480,000 in annual NOI. The buyer requests a $5.5 million loan. Debt yield = $480,000 / $5,500,000 = 8.7%. If the lender requires a 10% minimum debt yield, the maximum loan is $480,000 / 0.10 = $4,800,000. The buyer needs to either increase their equity by $700,000 or find a lender with a lower threshold.

Why lenders prefer it over DSCR. DSCR depends on the loan's interest rate and amortization schedule—both of which the lender controls. A lender offering a 5-year ARM at 5.5% with 30-year amortization gets a different DSCR than a lender offering a 10-year fixed at 7.0% with 25-year amortization, even though the property risk is identical. Debt yield eliminates this distortion. It measures only property income against loan exposure—the two variables that determine a lender's actual risk in foreclosure.

CMBS vs. bank lending. CMBS (Commercial Mortgage-Backed Securities) lenders securitize and sell loans to bond investors who can't renegotiate terms. They need metrics that reflect intrinsic property risk, not financing structure. That's why CMBS adopted debt yield as a primary underwriting metric in the 2010s, typically requiring 10% or higher. Banks and credit unions, which hold loans on their balance sheet and can modify terms, tend to use softer thresholds (8–9%) and weight DSCR more heavily. Life insurance companies fall in between, typically requiring 9–10%.

The rate environment impact. In 2021, with 30-year fixed rates at 3.5%, a $5 million loan on a $480,000 NOI property had a DSCR of 1.78—well above the 1.25 minimum. The same loan at 7.5% in 2024 drops to a 1.15 DSCR—below most lender thresholds. But the debt yield stays at 9.6% in both scenarios. This is why debt yield has become the dominant constraint in high-rate environments: DSCR fails first, but debt yield was already limiting loan proceeds before rates spiked.

Real-World Example

Tom in Charlotte. In 2024, Tom was acquiring a 36-unit apartment complex for $4.2 million with an NOI of $315,000 (7.5% cap rate). He applied for a CMBS loan at 75% LTV ($3.15 million) with a 7.25% interest rate and 30-year amortization.

DSCR check: Annual debt service on $3.15 million at 7.25% = $257,760. DSCR = $315,000 / $257,760 = 1.22. The lender's minimum was 1.25—Tom failed the DSCR test by a hair.

Debt yield check: $315,000 / $3,150,000 = 10.0%. The lender required 10% minimum—Tom passed, but just barely.

The lender sized the loan to the more restrictive of the two constraints. To hit a 1.25 DSCR: maximum debt service = $315,000 / 1.25 = $252,000, which supports a $2.94 million loan (70% LTV). To hit a 10% debt yield: maximum loan = $315,000 / 0.10 = $3.15 million. The DSCR constraint won—Tom's maximum loan was $2.94 million, requiring $1.26 million in equity instead of $1.05 million.

Tom negotiated the purchase price down to $3.85 million (NOI still $315,000, now an 8.2% cap rate). At 75% LTV ($2.89 million): DSCR = $315,000 / $236,400 = 1.33. Debt yield = $315,000 / $2,890,000 = 10.9%. Both tests passed. The $350,000 price reduction saved Tom $210,000 in equity while improving every underwriting metric.

Pros & Cons

Advantages

Rate-independent metric that stays constant regardless of financing terms
Directly measures lender risk: what return does NOI generate on the loan balance?
Simple to calculate with only two inputs (NOI and loan amount)
Increasingly used as the primary sizing tool by CMBS and life insurance lenders
Allows apples-to-apples comparison of loan risk across different properties and markets

Drawbacks

Ignores the borrower's ability to cover actual debt service payments (which DSCR captures)
Doesn't account for loan maturity risk—a 5-year term vs. 10-year term both show the same debt yield
Static snapshot that doesn't reflect NOI growth potential from lease-ups or renovations
Less useful for value-add or transitional assets where current NOI understates future performance
Not widely used in residential lending (1–4 units)—primarily a commercial metric

Watch Out

Don't confuse debt yield with cap rate. Cap rate = NOI / Purchase Price. Debt yield = NOI / Loan Amount. On a 75% LTV deal with a 7.5% cap rate, the debt yield is 10%—higher than the cap rate because the loan amount is smaller than the purchase price. If debt yield equals or falls below the cap rate, you're either at 100% LTV or the deal is over-leveraged.
Trailing NOI vs. underwritten NOI. CMBS lenders typically underwrite to the lower of trailing 12-month NOI or in-place NOI, not your pro forma. If the trailing NOI is $280,000 but your pro forma shows $340,000 after renovations, the lender uses $280,000 to calculate debt yield. Your loan sizing is based on current performance, not future upside.
Debt yield floors are rising. In 2019, many CMBS lenders accepted 8–9% debt yield. By 2024, 10% became the floor and some lenders moved to 11–12% for secondary markets or tertiary assets. Check current requirements before modeling your loan proceeds—using outdated thresholds will overestimate leverage.

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The Takeaway

Debt yield is the cleanest measure of loan risk in commercial real estate because it ignores interest rates, amortization, and loan term—variables that obscure the fundamental question of whether a property's income justifies the loan amount. In today's high-rate environment, debt yield has become the binding constraint for most commercial loans, often limiting proceeds more than DSCR. Every commercial deal you underwrite should include a debt yield calculation alongside DSCR and cap rate. If the debt yield falls below 10%, expect your loan proceeds to shrink—and plan your equity accordingly.