BRIEFCASE GUIDES / COMMERCIAL REAL ESTATE LENDING
Debt yield is a commercial real estate lending ratio equal to a property's net operating income divided by the loan amount. A building with $500,000 of NOI and a $5 million loan has a 10% debt yield. Lenders use it as a quick, rate-proof test of how much income stands behind every dollar they lend.
EDUCATIONAL NOTE
This page is general information for learning purposes, not lending, tax, legal, or investment advice. Briefcase is a media and marketing company, not a lender, broker, or investment adviser. Terms, ratios, and eligibility vary by lender, sponsor, and deal, so confirm every figure with a licensed professional before you act.
Debt yield is most associated with commercial mortgage-backed securities (CMBS) lending, but bridge lenders, life companies, and banks also check it. If you are refinancing a commercial or large multifamily property, or pitching software or services to the people who do, it is a term you need to be fluent in.
01
FORMULA
Debt yield = Net operating income ÷ Loan amount
Both inputs are the lender's version, not the sponsor's. Lenders use their own underwritten NOI, which usually means in-place rents, a market vacancy factor, a management fee, and reserves. The loan amount is the total proposed senior loan, and sometimes total debt if mezzanine financing is involved.
You can also flip the formula to find the maximum loan a lender will give: Maximum loan = NOI ÷ Minimum debt yield. With $400,000 of NOI and a 10% minimum, the cap is $4 million, regardless of the appraisal or the interest rate.
02
The appeal is what debt yield leaves out. DSCR depends on the interest rate and amortization schedule, so a lender can make a weak deal pass by stretching amortization or offering interest-only periods. Loan-to-value depends on an appraisal and a cap rate assumption, which can swing with market sentiment. Debt yield uses only income and loan size.
Put another way, debt yield is the cash return a lender would earn on its loan balance if it had to take the property back and kept operating it at the same NOI. A higher number means more cushion. Industry sources commonly describe roughly 10% as a typical CMBS minimum, with ranges that vary by property type, market, and lender, and higher requirements for riskier assets such as hotels. Treat any threshold as a starting point to confirm with an actual lender quote.
03
Hypothetical numbers for a stabilized suburban office building, to show the math only:
Lender underwritten NOI
$600,000
Appraised value at a 7.5% cap rate
$8,000,000
Test 1: 65% maximum LTV
$5,200,000
Test 2: 1.25x minimum DSCR at a 7.5% rate, 30-year amortization
about $5,720,000
Test 3: 10% minimum debt yield
$6,000,000
Loan offered (lowest of the three)
$5,200,000
Here LTV is the binding constraint. Raise the interest rate to 9% and the DSCR test drops to roughly $4.97 million, making it the binding test instead. Raise the lender's minimum debt yield to 12% and that test falls to $5 million. Sponsors model all three because whichever is lowest sets the proceeds.
04
01
DSCR (NOI ÷ annual debt service) asks: can the property pay its loan this year at this rate? It changes when rates or amortization change.
02
LTV (loan ÷ value) asks: how much equity sits beneath the loan? It changes when appraisers or the market change the cap rate.
03
Debt yield (NOI ÷ loan) asks: how much income backs each dollar of debt? It only changes when NOI or the loan amount changes.
In practice, lenders apply all three. Debt yield tends to bind when cap rates are low and values look high relative to income, or when rates are low enough that DSCR is easy to pass. When rates rise, DSCR often becomes the tighter test.
05
01
CMBS conduit loans, where loans are pooled and sold as bonds. Bond investors and rating agencies want a measure that cannot be dressed up with financing terms.
02
Bridge and transitional loans, where lenders may look at both in-place and stabilized debt yield to judge a business plan.
03
Loan covenants. Some loan agreements include an ongoing debt yield test that can trigger a cash management period or cash sweep if NOI falls.
04
Refinancing decisions. When a loan matures, the new lender's debt yield requirement on today's NOI can force a paydown if income has slipped.
The maturity wall in office and some multifamily loans has made that last point a live issue: when NOI falls and lenders tighten, the debt yield test can leave a gap the owner has to fill with new equity.
06
Because there are only two inputs, there are only two moves. Raise NOI, through leasing, renewals, expense control, or tax appeals, or lower the loan amount by bringing more equity, buying down the balance, or adding a subordinate piece of capital that the senior lender excludes. Rate buydowns and longer amortization do not help debt yield at all, which is exactly why lenders use it.
07
Transitional loans finance properties that are not yet performing, such as a half-empty office building or an apartment complex mid-renovation. Here lenders often look at two numbers. The in-place debt yield uses today's NOI, which may be very low. The stabilized or as-completed debt yield uses the NOI the business plan expects after leasing and renovations, measured against the fully funded loan including future advances for capital work.
A lender might accept a thin in-place debt yield if the stabilized figure is strong and the sponsor has a credible track record. That is also where risk hides: if the lease-up slows, the property can reach maturity with a debt yield too low to refinance, which is a common reason bridge loans need extensions or rescue capital.
08
Debt yield
NOI ÷ loan amount
Maximum loan
NOI ÷ minimum debt yield
Minimum NOI needed
Loan amount x minimum debt yield
NOI of $250,000 at a 10% minimum
Maximum loan of $2,500,000
Loan of $4,000,000 at a 9% minimum
NOI of at least $360,000
These are simple rearrangements, which is part of why debt yield is popular in early deal screening: a broker or analyst can estimate maximum senior proceeds in seconds from an NOI and the lender's stated minimum.
09
Debt yield is not only a lender concern. Asset managers track it to see refinancing risk years ahead of maturity. Brokers use it to explain to sellers why a buyer's financing will not stretch to the asking price. Proptech companies that sell underwriting, lease management, or expense tools can frame their value in debt yield terms: each dollar of NOI they help create or protect supports roughly ten dollars of loan proceeds at a 10% minimum. That is a sentence a CFO understands.
10
01
It ignores the cost of debt. Two loans with the same debt yield can have very different payment burdens.
02
It is only as good as the NOI. Aggressive underwriting of income defeats the purpose.
03
It does not account for lease rollover, tenant credit, or capital needs, which is why lenders pair it with rent roll and property condition review.
04
Thresholds vary by lender and asset class and change with market conditions, so published ranges are guides, not rules.
TAKEAWAYS
01
Debt yield = NOI ÷ loan amount, expressed as a percentage.
02
Maximum loan = NOI ÷ the lender's minimum debt yield.
03
It does not move with interest rates or amortization, which is why CMBS lenders lean on it.
04
Lenders size loans to the lowest of the LTV, DSCR, and debt yield tests.
05
Confirm thresholds with a licensed lender; published ranges are only a starting point.
SOURCES
Every figure on this page links to the primary or named source we checked on November 9, 2026. Worked examples use round hypothetical numbers and are labeled as such.
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