A CMBS loan is a commercial mortgage that the lender originates with the plan of pooling it with other loans and selling it to bond investors, according to J.P. Morgan's overview. For the borrower, that means a long-term, fixed-rate, non-recourse loan on a stabilized property. It also means strict documents and costly prepayment. For you as a broker, it means a product that is excellent for the right deal and a poor fit for the wrong one.
This guide covers what a CMBS loan is, the numbers that define it, where it fits, where it fails, and how to qualify a deal before you spend a week on it.
TL;DR
- A CMBS (conduit) loan is a commercial mortgage that is pooled with others and sold as bonds, so the loan is underwritten to securitization standards rather than a bank's own balance sheet limits.
- Typical terms: fixed rate, 5 to 10 years, non-recourse, up to about 80% LTV, with lenders often looking for a 1.25x DSCR minimum and a balloon payment at maturity.
- The trade-off is rigidity: lock-outs, yield maintenance or defeasance, and hard-to-obtain modifications.
- Best for stabilized, cash-flowing assets and borrowers who plan to hold. Weak for transitional, value-add or short-hold deals.
- Qualify the deal on DSCR, LTV, property stability and hold period before you approach any conduit lender.
Table of Contents
- What a CMBS loan actually is
- How a CMBS loan moves from application to bond
- Conduit vs. single-asset loans
- The numbers that define the product
- Prepayment: the part borrowers underestimate
- Non-recourse, with carve-outs
- Where CMBS fits, and where it does not
- CMBS compared with other debt
- Market timing: the gap between quote and bond sale
- Perspective
- How to qualify a deal for CMBS in ten minutes
- Finding the right conduit lenders faster
- FAQ
- Sources
What a CMBS loan actually is
CMBS stands for commercial mortgage-backed securities. The name describes the structure: bonds backed by commercial mortgages. Investopedia's definition puts it simply: investors buy securities secured by commercial real estate loans and receive income from the interest payments.
From the borrower's side, you rarely see the bond. You see a lender, a term sheet, a loan agreement and a servicer. The securitization happens after closing. The loan is placed into a trust with many others, and the trust issues bonds. Borrower payments flow through the trust to bondholders.
That single fact explains almost everything unusual about the product. Bondholders buy a cash flow model. They expect the loan to behave as modeled, so the documents are built to prevent surprises.
How a CMBS loan moves from application to bond
Trepp's guide to the life of a CMBS loan describes origination this way: a borrower approaches a conduit lender, a financial institution that originates and then securitizes commercial mortgages. The sequence looks like this in practice:
- Quote. The broker submits a package. The conduit lender returns a term sheet with a rate or spread, proceeds, amortization and prepayment terms.
- Underwriting and diligence. Third-party reports, rent rolls, operating statements and borrower information are reviewed against securitization standards.
- Closing. The lender funds the loan and holds it temporarily, often on a warehouse line.
- Pooling. The lender combines the loan with others from its own and sometimes other originators.
- Securitization. The pool is placed into a trust and sold as bonds in tranches.
- Servicing. A master servicer collects payments and handles routine requests. If the loan runs into trouble, a special servicer takes over.
The borrower's counterpart after closing is the servicer, not the person who sold the loan. Set that expectation in the first conversation. Clients used to a relationship banker are often surprised.
Conduit vs. single-asset loans
CMBS falls into two main structures, per J.P. Morgan:
| Structure | What it is | Typical use |
|---|---|---|
| Conduit | Many diversified loans pooled in one deal; loans commonly range from $15 million to $75 million in that source's description | Mid-sized stabilized properties across asset classes |
| Single-asset, single-borrower (SASB) | One large asset, or a pool of assets owned by one borrower, securitized on its own | Large trophy assets and portfolios |
When people search for conduit loans, they mean the first row. Be careful with the size range, though. The $15 million to $75 million figure describes how that source characterizes conduit pools. Individual conduit lenders set their own minimums and some go lower, so confirm each lender's floor before you quote a client.
The numbers that define the product
Current industry guidance, including Trepp's CMBS 101, points to this profile:
- Rate: fixed, in most cases.
- Term: 5 to 10 years.
- Amortization: most loans are not fully amortizing, so a balloon payment comes due at maturity. Many carry interest-only periods or 25 to 30 year amortization schedules, which makes the refinance risk at maturity real.
- Leverage: generally capped around 80% LTV. Many deals price lower.
- Coverage: lenders often require a minimum DSCR of about 1.25x.
- Recourse: non-recourse, with exceptions covered below.
Treat these as screening numbers, not promises. Each lender applies its own sizing, and a property with weak tenancy or an unusual asset type can be sized well under the cap.
A quick sizing example
Say a stabilized apartment property has net operating income of $1,500,000 and the lender requires 1.25x coverage. Maximum annual debt service is $1,200,000 ($1,500,000 divided by 1.25). On an amortizing loan, that debt service limit translates into a maximum loan amount that depends on rate and amortization. On the LTV side, an 80% cap on a $20,000,000 value gives $16,000,000. The smaller of the DSCR-constrained and LTV-constrained amounts wins. In higher-rate environments the DSCR test is usually what binds, which is why many borrowers receive less than the headline leverage. Our guide on shortlisting lenders by DSCR and LTV walks through running both tests first.
Prepayment: the part borrowers underestimate
This is where CMBS earns its reputation. Per the NAIC's summary and common practice, CMBS loans often include lock-out periods that prohibit prepayment for years, and where early payoff is allowed, the borrower typically faces yield maintenance or defeasance to protect the bondholders' expected return.
The two mechanisms work differently:
- Yield maintenance is a payment that compensates the lender for the interest it will not receive, calculated against a benchmark rate.
- Defeasance means the borrower buys a portfolio of securities, usually Treasuries, whose payments replicate the loan's remaining payments. The loan is substituted rather than paid off.
Both can be expensive, and the cost swings with interest rates. If you want the full comparison, we cover it in yield maintenance vs defeasance. The practical rule for brokers: ask the client early how long they really plan to own the asset. A borrower who may sell in three years should hear about the prepayment cost before the term sheet, not after.
Non-recourse, with carve-outs
CMBS is famous for non-recourse debt: if the loan defaults, the lender looks to the property, not the borrower's other assets. That is a real benefit. But Investopedia notes that these loans carry so-called bad boy carve-outs. Specific acts such as fraud, intentional misrepresentation or a voluntary bankruptcy filing can trigger personal liability for the borrower or guarantor.
What this means for your client conversation:
- Non-recourse does not mean no guarantor. A carve-out guarantor is normally required.
- Accuracy in the package matters more than usual. A misstated rent roll is not just a credit issue.
- Have the client's attorney review the guaranty. You are not their counsel, and carve-out language is a legal matter.
Our article on loan covenants for brokers and investors is a good companion for explaining ongoing obligations.
Where CMBS fits, and where it does not
Trepp's essential guide makes the point that CMBS is not built for properties in transition or for borrowers who need flexible documents. It works as a set-it-and-forget-it product for stabilized assets, with the trust structure favoring the bondholder.
Good fits
- Stabilized multifamily, retail, office, industrial or hospitality with a clear income history. The NAIC lists those property types as common collateral.
- Long-term holders who want fixed-rate, non-recourse debt.
- Loans larger than a local bank wants to hold. J.P. Morgan's commentary notes CMBS can fund large, stable deals beyond the concentration limits a traditional bank carries on its own balance sheet.
Poor fits
- Lease-up, heavy renovation or repositioning. These need bridge or construction capital first. See our construction lender requirements guide for that side.
- Short-hold or flip strategies where prepayment costs would erase the savings.
- Borrowers who expect to release parcels, assume the loan to a buyer, or change property use. J.P. Morgan warns that these modifications are significantly harder and costlier than with a relationship bank loan.
- Portfolios the owner wants to cross-collateralize and then trade out of piece by piece. Read cross collateralization basics before pitching that.
CMBS compared with other debt
| Feature | CMBS conduit | Bank or credit union | Bridge or private money |
|---|---|---|---|
| Rate | Typically fixed | Often fixed for a period, then adjusts | Often short-term, priced for speed |
| Recourse | Non-recourse with carve-outs | Often full or partial recourse | Varies by lender |
| Flexibility | Low | Higher, relationship-based | Moderate, for transitional deals |
| Prepayment | Lock-out, yield maintenance or defeasance | Often a step-down penalty | Often short, sometimes minimal |
| Best for | Stabilized, hold-long assets | Local relationships, smaller or owner-operated | Transitional or time-sensitive deals |
This is a general comparison of product types, not a promise about any one lender. Terms vary by institution and market.
Market timing: the gap between quote and bond sale
Because the loan is sold into the bond market after closing, pricing carries market risk. J.P. Morgan explains that lenders may build a cushion into their spreads to cover the time between closing the loan and selling the bonds. If volatility spikes in that window, the lender may pass on costs or tighten underwriting.
Two practical habits help:
- Tell the client that a quote is a snapshot, and ask each lender how it handles rate locks and spread movement.
- Build your timeline with slack. Third-party reports and diligence items are the usual causes of delay, so a tight loan document checklist at submission saves days.
Perspective
We talk to brokers every week who treat CMBS as either a magic bullet or a trap. It is neither. It is a specialized tool with a narrow sweet spot, and the brokers who win with it are the ones who qualify early and hard.
Our view, built around how a broker's day actually runs on our platform, is that the expensive mistake is not choosing the wrong lender. It is sending a transitional deal to a conduit lender, waiting for a pass, and losing the borrower's patience. Sorting deals by stabilization, hold period and DSCR before outreach turns a cold-call scramble into a short list of lenders who are likely to consider the file.
A second point: new brokers often assume the numbers in a quote are the whole story. For CMBS, the prepayment schedule and modification rules are the real price of the loan. Put them in front of the client in plain English, in writing, before they sign a term sheet. Clients who understood the trade-off up front rarely feel sandbagged later, and they refer.
Finally, keep your own records tight. When you are comparing several lenders on rate, proceeds and prepayment, a pipeline where every quote and conversation is logged beats memory every time.
— Theron
How to qualify a deal for CMBS in ten minutes
Before you contact any conduit lender, run this checklist:
- Is the property stabilized? Look for steady occupancy and a clean trailing operating history. If not, stop and look at bridge options.
- What is the DSCR at a realistic rate? Test it against the 1.25x screening level that is commonly cited.
- What is the LTV on a credible value? Compare the implied loan with the roughly 80% ceiling and expect lower on weaker assets.
- How long will the borrower hold? If the answer is under the term, price the prepayment.
- Does the borrower need flexibility? Parcel releases, assumption by a buyer or use changes are red flags.
- Can the borrower live with carve-out liability? Confirm a qualified guarantor exists.
- What does maturity look like? With a balloon, check the refinance story.
If all seven come back clean, CMBS belongs on the shortlist. If two or three fail, you have saved yourself and the client a lot of time. For packaging, our compliance playbook and the closing checklist cover what lenders and servicers expect to see.
Finding the right conduit lenders faster
The slow part of CMBS is rarely the concept. It is working out which lenders actually want a given property type, size and location. That is where BrokersConnect helps. The platform matches your loan scenario against a database of 289+ verified lenders using factors such as property type, loan amount, location, leverage and loan purpose. It also includes a deal pipeline, batch lender outreach, document vault, and a lender responsiveness leaderboard. Pricing is a flat $50 per month with a free trial and no commissions or transaction fees. If you are newer to placing loans, start with our guide on placing your first commercial loan, and see our matching guide to commercial mortgage lenders for how to sort lender types.
FAQ
What is a CMBS loan in simple terms?
It is a commercial mortgage that a lender pools with other loans and sells to investors as bonds. The borrower makes payments to a servicer, and those payments pass through to bondholders. Most are fixed-rate and non-recourse, with terms of 5 to 10 years.
What is a conduit loan?
A conduit loan is the most common type of CMBS loan. It is originated by a conduit lender and pooled with many other loans across property types. This differs from a single-asset, single-borrower deal, where one large asset or one borrower's pool is securitized alone.
Can a CMBS loan be paid off early?
Often only with difficulty. Many loans have a lock-out period, and after that the borrower typically pays yield maintenance or uses defeasance. Check the exact schedule in the term sheet and loan documents, and ask the borrower's attorney to review it.
Are CMBS loans truly non-recourse?
Mostly, but not absolutely. The lender normally looks only to the property, but carve-outs can create personal liability for acts like fraud, intentional misrepresentation or a voluntary bankruptcy filing. Confirm the specific guaranty language with legal counsel.
Is CMBS right for a value-add property?
Usually not until the property is stabilized. The loan structure favors bondholders and offers little flexibility for changing plans, so transitional deals generally start with bridge or construction financing and refinance into CMBS later.
Sources
- J.P. Morgan: Commercial Mortgage-Backed Securities (CMBS) Loans
- Trepp: CMBS 101, Loan Origination and Securitization
- Trepp: CMBS 101, An Essential Guide
- NAIC: Commercial Mortgage-Backed Securities
- Investopedia: What Is a Commercial Mortgage-Backed Security?