CMBS loan is a fixed-rate, non-recourse commercial mortgage that a lender pools with other loans and sells to bond investors as commercial mortgage-backed securities. Also called a conduit loan, it funds stabilized, cash-flowing property at 60% to 75% loan-to-value with a 5 to 10 year term, a balloon payment at maturity, and strict prepayment penalties.
How Does a CMBS Loan Work?
A CMBS loan works by originating a fixed-rate commercial mortgage against stabilized property, then pooling it with dozens of other loans into a trust that issues bonds to investors. The borrower pays a single lender at origination, but the loan is quickly securitized and serviced by a master servicer, with a special servicer stepping in only if the loan defaults.
Per J.P. Morgan and CMBS.loans, conduit loans typically run $5,000,000 to $75,000,000, carry 5 to 10 year fixed terms, and amortize over 25 to 30 years, leaving a balloon payment due at maturity. Because the pool is diversified across property types, geographies, and borrowers, bond investors get spread risk. The loans are non-recourse, so the property secures the debt and the sponsor is not personally liable, subject to standard carve-outs.
Term | Representative range (2026) |
Loan size | $5,000,000 to $75,000,000 |
Term | 5 to 10 years, fixed rate |
Amortization | 25 to 30 years, balloon at maturity |
Loan-to-value | 60% to 75% at origination |
Spread over Treasury | 175 to 275 bps, property-dependent |
Recourse | Non-recourse with standard carve-outs |
Per PeerSense, CMBS pricing is set as a spread of roughly 175 to 275 basis points over the 10-year Treasury, varying by property type, sponsor profile, and leverage. Prepayment is restricted by defeasance or yield maintenance, so a borrower cannot refinance freely without paying a penalty that offsets the bondholders' lost yield.
Why CMBS Loans Matter
CMBS loans matter because they give owners of stabilized property access to long-term, fixed-rate, non-recourse debt at scale that portfolio lenders often will not provide. The securitization model draws capital from bond investors rather than a single bank balance sheet, which widens availability. Per Trepp, CMBS issuance reached $125.6 billion in 2025, the highest level since 2007.
The trade is rigidity. A CMBS loan is hard to modify and expensive to prepay. Per Commercial Real Estate Loans, defeasance and yield maintenance penalties both commonly exceed 3% of the loan balance in normal rate conditions. The loan is also underwritten to strict debt service coverage and debt yield floors, and once securitized, terms are effectively fixed for the life of the loan.
The quotable point for an operator: a CMBS loan buys cheap, long, non-recourse debt at the cost of flexibility, so it fits a hold-to-maturity plan far better than a property you may sell or refinance early.
Example
A sponsor finances a stabilized $20,000,000 apartment property with a CMBS loan at 65% loan-to-value, priced at a 200 basis point spread over a 4.38% 10-year Treasury, on a 10 year term with 30 year amortization. The table below shows the sizing and rate.
Item | Calculation | Result |
Property value | Given | $20,000,000 |
Loan-to-value | Given | 65% |
Loan amount | 65% x $20,000,000 | $13,000,000 |
Base Treasury | Given | 4.38% |
Spread | Given | 200 bps |
Fixed coupon | 4.38% + 2.00% | 6.38% |
Annual interest in year one is roughly 6.38% of $13,000,000, or about $829,400 before principal amortization. If the property produces $1,100,000 in net operating income, debt service coverage against interest is $1,100,000 divided by $829,400, or 1.33x. To prepay this loan in year five, the sponsor would owe defeasance or yield maintenance, commonly more than 3% of the balance, or over $390,000, which is the cost of the loan's rigidity.
Variations and Edge Cases
CMBS loans are not uniform: structure, prepayment terms, and servicing shift with the deal type. The table below covers the variants an operator should confirm before signing.
Variant | Treatment |
Conduit vs SASB | Conduit loans pool many borrowers; single-asset single-borrower deals securitize one large loan |
Defeasance vs yield maintenance | Defeasance substitutes a Treasury portfolio; yield maintenance pays present value of lost coupon |
Interest-only periods | Many conduit loans offer partial or full interest-only terms, raising proceeds |
Special servicing | A defaulted CMBS loan transfers to a special servicer, limiting borrower negotiation |
Assumability | CMBS loans are often assumable, which can add value when selling into a low-rate loan |
A distinctive 2026 wrinkle is negative defeasance. Per Commercial Real Estate Loans, 2014 to 2016 vintage loans with 3.5% to 4.0% coupons can currently be defeased at a net receipt of roughly 0.5% to 1.5% of balance, meaning the borrower is effectively paid to prepay, a window last open in 2006.
CMBS Loan vs Portfolio Loan
CMBS loan is often confused with a portfolio loan, and both are permanent commercial debt, but they are held differently. A CMBS loan is originated to be securitized and sold to bond investors, so its terms are standardized and prepayment is locked by defeasance or yield maintenance. A portfolio loan is held on the originating bank's balance sheet, so it is more negotiable and easier to modify.
The practical difference is flexibility versus cost. A CMBS loan often prices lower and offers non-recourse, long-term, fixed-rate money, but the borrower gives up the ability to restructure or prepay cheaply. A portfolio lender keeps the relationship and can work out problems directly, usually at a higher rate or with recourse.
Frequently Asked Questions
What is a CMBS loan?A CMBS loan is a fixed-rate, non-recourse commercial mortgage that a lender pools with other loans and sells to bond investors as commercial mortgage-backed securities. Also called a conduit loan, it funds stabilized property at 60% to 75% loan-to-value with a 5 to 10 year term and a balloon at maturity.
What are typical CMBS loan terms?Typical CMBS loans run $5,000,000 to $75,000,000, carry 5 to 10 year fixed rates, and amortize over 25 to 30 years with a balloon payment at maturity. Pricing is roughly 175 to 275 basis points over the 10-year Treasury, and the loans are non-recourse with standard carve-outs.
How do you prepay a CMBS loan?A CMBS loan is prepaid through defeasance or yield maintenance, not a simple payoff. Both commonly cost more than 3% of the loan balance in normal rate conditions, because they compensate bond investors for the coupon lost when the loan pays off early.
Is a CMBS loan non-recourse?A CMBS loan is generally non-recourse, meaning the property secures the debt and the sponsor is not personally liable. Standard bad-boy carve-outs apply, so fraud, misrepresentation, or bankruptcy can convert portions of the loan to recourse against the borrower.
Related Terms
Debt Service Coverage Ratio
Debt Yield
Loan to Value Ratio
Permanent Loan
Net Operating Income