If you’ve ever wondered what happens to your commercial mortgage after you close, the answer might surprise you. Your loan could be pooled with dozens or hundreds of other mortgages, packaged into bonds, and sold to pension funds and insurance companies around the world.
This process—called securitization—creates Commercial Mortgage-Backed Securities (CMBS). It’s less common in Canada than in the U.S., but it’s a significant part of the commercial real estate financing landscape you should understand.
Let me break down what CMBS actually is, how it works, what it means for you as a borrower, and when your mortgage might end up securitized.
What Are Commercial Mortgage-Backed Securities?
CMBS are bonds backed by pools of commercial real estate mortgages.
Here’s the basic process:
- Lenders make commercial mortgages to borrowers (office buildings, apartments, retail centers, etc.)
- The lender pools 50-100+ individual mortgages together
- The pool is transferred to a special purpose trust
- The trust issues bonds backed by the mortgage pool
- Investors (pension funds, insurance companies, mutual funds) buy the bonds
- Monthly mortgage payments from borrowers flow through to bondholders
From the lender’s perspective, they’ve made loans, then sold them to investors, freeing up capital to make new loans.
From investors’ perspective, they’re buying bonds that generate steady income from commercial real estate mortgages.
From your perspective as a borrower, you’ve got a mortgage—but the ultimate owner of that mortgage might change.
CMBS vs. NHA MBS (CMHC-Insured Securitization)
Canada has two main commercial mortgage securitization markets.
NHA MBS (National Housing Act Mortgage-Backed Securities):
- For CMHC-insured apartment mortgages only
- Government-backed (CMHC guarantees payment)
- Very active market
- Most CMHC-insured apartment loans get securitized
CMBS (Commercial Mortgage-Backed Securities):
- For non-insured commercial mortgages (office, retail, industrial, hotels, non-insured apartments)
- No government guarantee
- Smaller market in Canada than in the U.S.
- Less active than NHA MBS
Most commercial mortgage securitization in Canada happens through NHA MBS for insured apartments. True CMBS for non-insured properties is a smaller market.
How CMBS Works in Practice
Let me walk through a realistic example.
Step 1: Loan Origination
Bank makes 75 commercial mortgages totaling $500 million:
- Office buildings: $200M
- Retail centers: $150M
- Industrial properties: $100M
- Hotels: $50M
Each loan is 5-10 years, amortizing, with interest rates of 6-7%.
Step 2: Pooling
Bank aggregates these 75 loans into a single pool. They structure the pool to have:
- Geographic diversification (properties across Canada)
- Property type diversification
- Mix of loan sizes
- Similar remaining terms
Step 3: Tranching
The pool is divided into “tranches” (slices) with different risk levels:
Senior Tranche (AAA-rated): 70% of pool
- First priority for payments
- Lowest risk
- Lowest return (4.5%)
Mezzanine Tranches (AA/A/BBB-rated): 25% of pool
- Intermediate priority
- Moderate risk
- Moderate returns (5-7%)
Junior Tranche (Non-rated): 5% of pool
- Last priority (absorbs losses first)
- Highest risk
- Highest potential return (10%+)
Step 4: Sale to Investors
Investment bank underwrites and sells the bonds:
- Pension funds buy the senior AAA tranches (safe, stable returns)
- Insurance companies buy the mezzanine tranches
- Hedge funds and aggressive investors buy the junior tranches
Step 5: Ongoing Servicing
A servicer (might be the original lender or a third-party specialist) collects mortgage payments from borrowers and distributes them to bondholders.
Step 6: What You Experience
As a borrower, you might not even notice your loan was securitized. You make payments to the servicer (could be the same bank that originated your loan, or could be a different company).
The key difference: if you need a loan modification, extension, or workout, you’re dealing with a servicer who has limited authority rather than a lender who owns the loan and has full discretion.
The Canadian CMBS Market
CMBS is less developed in Canada than in the U.S. for several reasons.
Why CMBS Is Smaller in Canada:
Strong Bank Balance Sheets
Canadian banks are well-capitalized and generally prefer to hold loans rather than securitize them.
Portfolio lending is culturally more common in Canada.
Smaller Market
Canada’s commercial real estate market is much smaller than the U.S., making it harder to assemble large diversified pools.
CMHC Dominance
For apartments, CMHC insurance and NHA MBS securitization dominates. There’s less need for uninsured CMBS.
Conservative Lending Culture
Canadian lenders are more conservative, with less pressure to maximize short-term origination volume through securitization.
Current Market Size:
Canada issues $3-5 billion in CMBS annually (2026 estimate), compared to $75-100 billion in the U.S.
The Canadian CMBS market exists and is growing, but it’s a fraction of the overall commercial mortgage market.
When Your Loan Might Be Securitized
Your commercial mortgage is most likely to be securitized if:
It’s a CMHC-Insured Apartment Loan
Nearly all CMHC-insured apartment mortgages get securitized through NHA MBS. This is the most active securitization market in Canada.
If you get CMHC MLI Select financing, expect your loan to be securitized.
It’s Originated by a Conduit Lender
Some lenders originate loans specifically to securitize them—these are called “conduit lenders.”
They’re not portfolio lenders (keeping loans on their books); they’re originate-to-sell lenders.
It’s a Standardized, Institutional-Quality Loan
Large loans ($5M+) on class A properties in major markets are easier to securitize.
Small loans on quirky properties in secondary markets don’t fit CMBS pools well.
Market Conditions Favor Securitization
When bond investor appetite for CMBS is strong and securitization economics are favorable, more loans get securitized.
When bond markets are weak, lenders hold more loans on balance sheet.
What CMBS Means for You as a Borrower
If your loan is securitized, here’s how it affects you.
Payment Processing
You make payments to a servicer (could be the original lender acting as servicer, or a third-party servicer).
For routine payments, no difference from portfolio lending.
Loan Modifications
This is where securitization matters most.
Portfolio lender: Has full authority to modify your loan if circumstances warrant. Can extend terms, adjust rates, grant temporary relief, etc.
Securitized loan: The servicer has limited authority defined by the pooling and servicing agreement. Modifications often require bondholder approval, which is slow or impossible.
If you need flexibility—an extension, a workout, a modification—securitized loans are much harder to modify than portfolio loans.
Prepayment
CMBS loans typically have strict prepayment terms:
- Defeasance (you must substitute U.S. Treasury bonds for the mortgage as collateral)
- Yield maintenance (prepayment penalty calculated to keep bondholders whole)
- Lockout periods (no prepayment allowed for 2-5 years)
These are generally more restrictive than portfolio loan prepayment terms.
Communication
Portfolio lender: You have a relationship manager who knows you and your property.
Securitized loan: You’re dealing with a servicer following standardized procedures. Less personal relationship.
Default Situations
If you get into trouble:
Portfolio lender: Can work with you creatively to find solutions.
Securitized loan: The servicer must follow the pooling and servicing agreement. They have less flexibility to negotiate or workout problems.
Advantages of CMBS for the Market
Despite drawbacks for individual borrowers, CMBS provides market benefits.
Increases Capital Availability
Securitization brings bond investor capital into commercial real estate, expanding total lending capacity.
More capital = more financing available = more deals can happen.
Improves Liquidity
Securitization allows lenders to recycle capital faster, making more loans.
Lowers Costs (Sometimes)
Competition from CMBS conduits can drive down conventional lending rates.
Diversification for Investors
Pension funds and insurance companies can invest in commercial real estate debt without originating and managing individual mortgages.
Disadvantages of CMBS
Rigidity
Securitized loans are harder to modify, extend, or workout.
Prepayment Restrictions
CMBS loans typically have onerous prepayment penalties.
Loss of Relationship
You’re dealing with servicers and standardized processes rather than relationship lenders.
Procyclicality
The CMBS market tends to amplify cycles—aggressive lending in booms, shutting down in busts.
This was evident in 2008 financial crisis when CMBS markets froze and commercial real estate financing became very difficult.
Will You Know If Your Loan Is Securitized?
Sometimes yes, sometimes no.
CMHC-Insured Loans:
Your lender will likely tell you that CMHC-insured loans are sold into NHA MBS pools. This is standard and expected.
Other Loans:
Your loan documents might mention that the loan could be sold or securitized, but lenders don’t always notify borrowers when it actually happens.
You can ask your lender directly: “Do you portfolio this loan or will it be sold/securitized?”
Many lenders will give you a straight answer.
CMBS and the 2008 Financial Crisis
CMBS played a role in the 2008 financial crisis, particularly in the U.S.
What happened:
- Lenders originated marginal loans to securitize and sell
- Because lenders didn’t hold the risk (they sold it to bondholders), underwriting quality declined
- When real estate values dropped and defaults rose, CMBS bonds lost value
- The CMBS market froze, cutting off commercial real estate financing
Canada’s CMBS market was less affected than the U.S. because:
- Smaller market size
- More conservative lending standards
- Banks held more loans on balance sheet rather than securitizing everything
Post-crisis, CMBS regulations tightened. Lenders must now retain some “skin in the game” (keeping a portion of securitizations rather than selling 100%).
Canadian banks also learned lessons and remained relatively conservative on CMBS.
The Future of CMBS in Canada
The Canadian CMBS market will likely remain smaller and more conservative than the U.S. market.
Trends to watch:
NHA MBS Dominance
CMHC-insured apartment securitization will remain the most active part of the market.
Institutional Growth
As Canadian pension funds and insurance companies seek real estate debt exposure, they’ll increasingly participate in CMBS as investors.
Technology
Blockchain and financial technology could make CMBS more efficient and transparent.
ESG Integration
Environmental, social, and governance factors are being integrated into CMBS, with “green CMBS” backed by energy-efficient buildings.
The Bottom Line
Commercial Mortgage-Backed Securities (CMBS) are bonds backed by pools of commercial real estate mortgages. They’re less common in Canada than in the U.S., but they’re part of the financing landscape.
As a borrower, you might not choose whether your loan is securitized—that’s the lender’s decision. But understanding CMBS helps you appreciate:
- Why some lenders focus on standardized loan products
- Why securitized loans are harder to modify
- Why prepayment penalties can be so strict
- The importance of portfolio lenders for flexibility
If you value relationship lending and potential flexibility, portfolio lenders (credit unions, some banks, life insurance companies) are preferable to conduit lenders who securitize everything.
If you’re getting CMHC-insured apartment financing, expect your loan to be securitized—it’s standard and doesn’t significantly impact your experience as long as you make payments on time.
When you work with Creek Road Financial Inc., we’ll explain which lenders portfolio loans versus securitize them, helping you choose the right lender based on your priorities. Contact us for a free consultation on your commercial mortgage needs.