CMBS (commercial mortgage-backed securities) are bonds created by pooling commercial real estate mortgage loans into a trust, structuring the pool into tranches with different risk and return profiles, and selling those tranches to capital markets investors. The bonds are backed by the pool’s cash flows, and the loans inside the pool are typically 5- or 10-year fixed-rate mortgages.
How does a CMBS loan work?
A CMBS lender originates a loan, bundles it with other loans into a trust, and issues securities backed by the pool’s cash flows. Securitization lets the originator recycle its capital and offer competitive rates, which is why CMBS is one of the largest sources of CRE debt capital in the United States.
The loans themselves follow a recognisable template. CMBS loans are typically 5- or 10-year fixed-rate loans with 25- to 30-year amortization schedules, and they commonly use defeasance or yield maintenance as the prepayment provision. Both provisions make early payoff expensive, which protects the cash flows the bond investors bought.
The gap between a 10-year term and a 30-year amortization schedule leaves a balloon balance due at maturity. The borrower repays it through a refinance or a sale, and the prepayment provision governs the cost of doing either before the loan’s open period.
Who services a CMBS loan after closing?
Once the loan is securitized, the borrower no longer deals with the original lender. Performing loans are handled by a master servicer; distressed situations move to a special servicer. Neither can simply agree to a modification or waiver on request, because servicers are bound by the pooling and servicing agreement (PSA) that governs the trust.
This is the practical difference borrowers feel most. A bank borrower calls a relationship officer; a CMBS borrower submits a request through a servicer whose discretion is defined by the PSA. Borrowers must understand their servicer’s rights and limitations before they need them, not after a problem has surfaced.
How is a CMBS loan different from a bank loan?
CMBS loans typically carry more rigid prepayment provisions, cash management requirements and reserve structures than portfolio loans held on a bank’s balance sheet. The trade for competitive fixed-rate pricing is less flexibility over the life of the loan, and the covenants, escrows and reserves written into the documents are enforced by a servicer rather than negotiated with a lender.
| Feature | Bank or portfolio loan | CMBS loan |
|---|---|---|
| Counterparty after closing | The originating lender | Master servicer (performing) or special servicer (distressed) |
| Modifications and waivers | Negotiated directly with the lender | Constrained by the pooling and servicing agreement |
| Prepayment | Less rigid | Commonly defeasance or yield maintenance |
| Cash management and reserves | Less rigid | Typically more rigid |
How CMBS shows up in LoanBoss
LoanBoss abstracts and tracks CMBS loan provisions across a portfolio, including servicer contact information, defeasance windows and covenant test dates. Real-time defeasance and yield maintenance calculations project the cost of a prepayment on any future date, so a borrower is never surprised by their own loan documents.
Frequently Asked Questions
What does CMBS stand for?
CMBS stands for commercial mortgage-backed securities. They are bonds backed by a pool of commercial real estate mortgages, sold to capital markets investors in tranches with varying risk and return profiles.
Who do I call if I need a modification on a CMBS loan?
The master servicer for a performing loan, or the special servicer once a loan is in distress. Either one is bound by the pooling and servicing agreement, so a request that a bank could approve on the phone may not be within the servicer’s authority.
What is the typical term of a CMBS loan?
CMBS loans are typically 5- or 10-year fixed-rate loans with 25- to 30-year amortization schedules. The gap between term and amortization leaves a balloon balance due at maturity.
How can a CMBS loan be prepaid?
Most CMBS loans use defeasance or yield maintenance as the prepayment provision, and both are more rigid than the prepayment terms on a typical portfolio loan. The cost depends on the date, so it should be calculated before a sale or refinance is planned.
Why are CMBS loans structured so rigidly?
The bonds are backed by the pool’s cash flows, and investors price those cash flows on the assumption that they arrive as scheduled. Prepayment provisions, cash management requirements and reserve structures protect that assumption, which is also why servicers have limited discretion to waive them.
Related Terms
- Defeasance
- Escrow
- Covenant
- Maturity Date
- Subordination
- Tracking CMBS Loans as a Borrower: Servicers, Cash Management and Defeasance
- Cash Management Triggers and Cash Sweeps: How They Work and What to Monitor
Part of the LoanBoss CRE Debt Glossary. For hedging-specific terms, see Pensford’s resources.
Sources
- LoanBoss CRE Debt Glossary