MORTGAGE BASICS · EXPLAINED
Insured vs. insurable vs. uninsured mortgages: what's the difference?
Two people can walk into the same lender on the same day with the same credit score and the same income, and be quoted different rates. Not because one negotiated better — because their files sit in different risk categories. Every Canadian mortgage falls into one of three, and which one yours lands in is decided by your down payment, your purchase price, your amortization, and whether you're buying or refinancing.
Educational only — not personalized financial advice. Insurer and OSFI guidelines change, and lender pricing of each category varies.
The three categories
Insured
Less than 20% down, on a home priced under $1.5 million. Default insurance is mandatory, you pay the premium, and it's normally added to your mortgage rather than paid in cash. The lender is protected against loss, so this category typically carries the sharpest rates available.
Example
- $525,000 purchase, minimum down of $27,500
- Mortgage before premium: $497,500
- Premium at 4.00% · 90–95% LTV: $19,900
Insurable
20% or more down, but the file still meets every CMHC criterion — under $1.5 million, amortization of 25 years or less, owner-occupied, a purchase rather than a refinance. You aren't required to insure it, so you pay nothing. The lender can buy portfolio insurance on it in bulk, at its own expense, and price it almost as sharply as an insured file.
Same house, 20% down
- Down payment: $105,000
- Mortgage: $420,000
- Premium you pay: $0
Uninsured
The file doesn't qualify for insurance at all — not by choice, but by rule. Nobody pays a premium because no insurance exists. The lender carries the entire default risk on its own balance sheet, and the rate reflects that. This is where refinances, high-value purchases, and long amortizations live.
- A purchase price at or above $1.5 million — insurance simply isn't available, no matter the down payment
- An amortization longer than 25 years on a file that isn't first-time-buyer or new-build eligible
- Any refinance — pulling equity out disqualifies the mortgage from insurance entirely
Side by side
| Insured | Insurable | Uninsured | |
|---|---|---|---|
| Down payment | Under 20% | 20% or more | Any amount |
| Purchase price | Under $1.5 million | Under $1.5 million | $1.5 million and up, or ineligible for other reasons |
| Maximum amortization | 25 years (30 for first-time buyers and new builds) | 25 years | 30 years and beyond, lender permitting |
| Who pays the premium | You — added to the mortgage | The lender, out of its own margin | Nobody — no insurance exists |
| Refinances allowed | No | No | Yes — every refinance lands here |
| Typical rate position | Sharpest | Close behind | Highest of the three |
Premium tiers, who the three insurers are, and how the cost is calculated are covered in full in the guide to mortgage default insurance. First-time buyers and new-build purchasers can extend to 30 years on an insured mortgage for a 0.20% premium surcharge.
Why this decides your rate — and why 20% down doesn't always win
Lenders price on risk of loss. On an insured mortgage, that risk is transferred to CMHC, Sagen, or Canada Guaranty, and the lender is made whole in a default. On an insurable mortgage, the lender can transfer that risk itself through bulk portfolio insurance. On an uninsured mortgage, the risk stays exactly where it started. Three levels of lender exposure, three levels of pricing.
Which produces the outcome most borrowers find backwards: putting more money down can leave you with a higher rate. It's not a penalty for saving. It's that a 5%-down file is insured, and a 20%-down file with a 30-year amortization is uninsured — and the lender's risk on the second one is genuinely greater despite the larger cushion.
The useful takeaway isn't to put less down. It's that the category is often adjustable. Amortization length, the exact down payment amount, and refinance versus second mortgage are all levers, and they should be set with the rate consequence visible rather than assumed.
Watch for these
What quietly pushes a file into uninsured
- A purchase price at or above $1.5 million — insurance simply isn't available, no matter the down payment
- An amortization longer than 25 years on a file that isn't first-time-buyer or new-build eligible
- Any refinance — pulling equity out disqualifies the mortgage from insurance entirely
- Non-owner-occupied rental properties structured outside insurable programs
- Properties or income types that fall outside insurer guidelines even when the numbers work
Across Nova Scotia, New Brunswick, and PEI the $1.5 million cap rarely bites — most Atlantic purchases sit comfortably below it. Amortization length and refinancing are the two that catch people here, not price.
Category and qualifying are two different questions
These categories set your rate. What you can borrow is a separate calculation — the mortgage stress test qualifies you at the greater of the benchmark rate or your contract rate plus two points, and it applies to insured and uninsured files alike. The two interact: a sharper insured rate produces a lower stress-test rate, which produces a slightly larger approval.
Mortgage default insurance
Premium tiers by loan-to-value, the three insurers, and how the cost is added to your mortgage.
Read moreOpen vs closed mortgages
A separate axis from insurance category — and the one that decides what breaking early costs.
Read moreHELOCs in Canada
Home equity lines sit outside insured territory entirely. Worth comparing before a refinance reprices your whole balance.
Read moreCommon questions
I have 20% down — why am I being quoted a higher rate than someone with 5% down?
Because rate follows the lender's risk, not your virtue. A mortgage with less than 20% down is insured, which means the lender is protected against default by CMHC, Sagen, or Canada Guaranty — and prices accordingly. With 20% down and no insurance in the picture, the lender carries the loss risk itself. If your file is insurable, the gap is usually small. If something pushes you into the uninsured bucket — a 30-year amortization, a price at or above $1.5 million, a refinance — the gap widens.
What does 'insurable' actually mean if I'm not buying insurance?
It means your file meets every CMHC eligibility rule even though you aren't required to insure it. That lets the lender buy portfolio insurance on the mortgage in bulk, at its own cost, and price your rate as though it were insured. You never see the premium, never sign anything about it, and in most cases never learn it happened. You just get a better rate than an otherwise identical uninsured file.
Can a 25-year amortization really change my rate?
Yes, and it catches people. Insurable pricing requires an amortization of 25 years or less. Stretching to 30 years to lower the monthly payment moves the file to uninsured, which usually means a higher rate on the entire balance. Sometimes the longer amortization is still the right call for cash flow. The point is to make that trade knowingly, with both numbers in front of you, rather than discovering it in the commitment letter.
Does refinancing always put me in the uninsured category?
Yes. Default insurance is not available on refinances in Canada, so pulling equity out moves your mortgage to uninsured pricing regardless of how much equity you hold. That's a real cost people underestimate — you may be repricing the whole balance, not just the new money. It's often the deciding factor in choosing a second mortgage or a HELOC over a full refinance.
Is this the same across Nova Scotia, New Brunswick, and PEI?
The categories are federal, so yes — the OSFI and CMHC rules are identical in Halifax, Moncton, and Charlottetown. What differs regionally is how often each category comes up. With typical Atlantic Canada prices well below the $1.5 million cap, most purchases here are insured or insurable, which is a genuine pricing advantage compared with buyers in markets where the cap bites regularly.
How do I find out which category my file lands in?
Ask directly, and ask early — before you've settled on an amortization or a down payment amount. Any broker or lender can tell you immediately, and it's worth knowing while the inputs are still adjustable. Occasionally the answer is that putting slightly less down, or shortening the amortization by a few years, produces a lower rate than the arrangement you had in mind.
What Rahul actually looks at with you
Most people never learn which category their mortgage was in. They just accept the rate they were quoted. The value in knowing is that several of the inputs are still yours to set at the start:
- Which of the three categories your file lands in — before an amortization or down payment is locked in
- Whether trimming to a 25-year amortization buys a better rate than the payment relief of 30 years costs you
- Whether a slightly smaller down payment producing an insured file beats a larger one producing an uninsured file
- For refinances: whether the uninsured repricing on the whole balance outweighs the equity you're accessing
- Which lenders actually price insurable files sharply — not all of them pass the portfolio-insurance saving along
- Whether the 0.20% extended-amortization surcharge is worth paying on your specific file
Sometimes the honest answer is that the uninsured rate is worth paying — a longer amortization that keeps your budget survivable beats a sharper rate you resent every month. You'll see both numbers before deciding.
These three categories sit alongside a pile of related terminology. The Canadian mortgage glossary defines each of them plus everything else that shows up on a lender commitment.
Find out which category your file lands in
It takes about five minutes, and it's worth knowing while the down payment and amortization are still adjustable. No cost, no obligation.
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