Insurable vs Insured Mortgages: The Rate Secret Most Canadians Don't Know

# Insurable vs Insured Mortgages: The Rate Secret Most Canadians Don't Know

Most Canadians assume that putting 20% down on a home means they get the best mortgage rate available. In reality, borrowers with less than 20% down often receive lower rates than those with larger down payments. The reason comes down to a little-understood distinction in how Canadian lenders price mortgages: insured, insurable, and uninsurable.

Understanding this classification system can save you thousands of dollars over the life of your mortgage. At The Mortgage World, we help clients navigate these categories every day, and the savings are real.

How Canadian Mortgage Insurance Actually Works

In Canada, any mortgage with a down payment of less than 20% must be insured through one of three providers: the Canada Mortgage and Housing Corporation (CMHC), Sagen (formerly Genworth), or Canada Guaranty. The insurance protects the lender against borrower default.

Source: CMHC, Mortgage Loan Insurance Overview, 2024

The insurance premium is paid by the borrower, either upfront or added to the mortgage balance. Premiums range from 2.80% to 4.00% of the mortgage amount depending on the loan-to-value ratio.

Source: CMHC, Homebuying Step by Step, Premium Rates, 2024

This table tells only half the story. The premium is what the buyer pays. The benefit is what the lender receives: a government-backed guarantee that the mortgage will be repaid. That guarantee allows lenders to offer lower interest rates because their risk is essentially zero.

The Three Mortgage Categories Explained

Canadian lenders classify every mortgage into one of three categories. Each category carries a different level of risk for the lender, and that risk is reflected directly in the interest rate you are offered.

Insured mortgages are those where the borrower has less than 20% down and pays the mortgage insurance premium. The lender's risk is fully covered by the insurer. These mortgages attract the lowest interest rates.

Insurable mortgages are those where the borrower has 20% or more down, but the mortgage still meets the criteria for the lender to purchase insurance on it (at the lender's own cost). The borrower does not pay the premium, but the lender can still hedge its risk. These rates are slightly higher than insured rates, but significantly lower than uninsurable rates.

Uninsurable mortgages are those that do not qualify for any form of mortgage insurance. The lender carries the full default risk. These attract the highest interest rates.

Source: OSFI, Guideline B-20: Residential Mortgage Underwriting Practices, 2023

The Rate Difference: Why This Matters to Your Wallet

The rate gap between these three categories is meaningful. Here is a representative comparison based on mid-2025 rate pricing from major Canadian lenders.

The difference between insurable and uninsurable rates on a $500,000 mortgage is approximately $4,700 over five years. That is money you keep in your pocket simply by ensuring your mortgage qualifies as insurable rather than uninsurable.

If you are considering a pre-approval, understanding which category your mortgage falls into is one of the most impactful steps you can take.

Eligibility Requirements for Insurable Mortgages

Not every mortgage with 20% or more down qualifies as insurable. There are specific criteria the mortgage must meet for the lender to insure it on the back end.

To qualify as insurable, the mortgage must meet all of the following:

• The purchase price must be under $1,000,000
• The amortisation period must be 25 years or less
• The property must be owner-occupied (not a rental or investment property)
• The property must be a one-to-four unit dwelling
• The transaction must be a purchase (not a refinance or equity take-out)
• The borrower must meet standard qualification criteria, including the mortgage stress test

Source: CMHC, Transactional Homeowner Mortgage Loan Insurance Product, Eligibility Criteria, 2024

If your mortgage fails any of these criteria, it automatically falls into the uninsurable category, even if you have 20% or more down. This is where many borrowers lose access to better rates without realising it.

For example, if you are purchasing a $1,100,000 home with 25% down, your mortgage is uninsurable regardless of your income, credit score, or the strength of your application. Similarly, if you are looking to refinance, refinances are always classified as uninsurable.

Why Most Borrowers With 20% Down Don't Know About This

There are a few reasons this rate tier remains a blind spot for most Canadians.

First, the terminology is confusing. The words "insured" and "insurable" sound nearly identical, and lenders do not go out of their way to explain the distinction. Many bank mortgage specialists are only trained to offer their institution's posted rates without discussing the underlying insurance category.

Second, the benefit of the insurable category flows to the borrower in the form of a lower rate, but it requires the lender to pay an insurance premium from their own margin. Not all lenders choose to do this. Some lenders simply classify every 20%-down mortgage as uninsurable and charge the higher rate.

Third, the criteria are specific. If any single requirement is not met, the mortgage shifts to the uninsurable category. Borrowers who want a 30-year amortisation, for example, are automatically excluded from insurable rates, even if they meet every other criterion.

How to Access Insurable Rates

The key to accessing insurable rates is knowing to ask for them and working with a broker who understands the classification system.

Steps to ensure you get insurable pricing:

1. Confirm your purchase price is under $1,000,000
2. Keep your amortisation at 25 years or less
3. Ensure the property will be owner-occupied
4. Ask your broker specifically about insurable rate pricing
5. Compare rates across multiple lenders, as not all lenders offer insurable pricing

At The Mortgage World, we routinely identify insurable pricing opportunities that save our clients thousands. It is one of the first things we check when structuring a mortgage application.

If you are weighing your options between a longer amortisation and a lower rate, the math is worth reviewing. A 25-year amortisation at an insurable rate often results in lower total interest paid than a 30-year amortisation at an uninsurable rate.

Strategic Considerations for Different Buyer Profiles

The insurable category creates interesting planning opportunities for different types of buyers.

First-time buyers with exactly 20% down: You are in the sweet spot. You avoid paying the CMHC premium entirely, and if your purchase price is under $1M with a 25-year amortisation, you access near-insured rates. This is the best-of-both-worlds scenario. See our full breakdown of the pre-approval process to start planning.

Buyers choosing between 19% and 20% down: In some cases, putting down 19% (and paying the smaller CMHC premium) results in a lower interest rate than putting down 20% on an uninsurable mortgage. Run the numbers both ways.

Buyers considering a refinance later: Remember that any refinance will be classified as uninsurable regardless of your equity position. If you are planning to refinance in the near future, factor the higher rate into your projections. You may also want to read our comparison of refinancing versus a HELOC to explore all your options.

Buyers looking at properties over $1M: Unfortunately, insurable pricing is not available to you. Your mortgage will be uninsurable, and your rate will reflect that. Focus your negotiation on other rate factors, such as lender competition and your overall credit profile.

Let The Mortgage World Find Your Best Rate Category

The insured, insurable, and uninsurable classification system is one of the most important factors in Canadian mortgage pricing, and one of the least understood. The difference between insurable and uninsurable rates can save you nearly $5,000 over a five-year term on a typical mortgage.

At The Mortgage World, we analyse every client file to determine the optimal mortgage structure. If your mortgage qualifies as insurable, we make sure you get insurable pricing. If it does not, we explore whether adjustments to the amortisation, down payment, or purchase strategy could move you into a better rate category.

Contact us today to find out which rate category your mortgage falls into and how much you could save.

References

• CMHC, Mortgage Loan Insurance Overview: https://www.cmhc-schl.gc.ca/consumers/home-buying/mortgage-loan-insurance-for-consumers
• CMHC, Homebuying Step by Step, Premium Rates: https://www.cmhc-schl.gc.ca/consumers/home-buying/mortgage-loan-insurance-for-consumers/mortgage-loan-insurance-premiums
• OSFI, Guideline B-20, Residential Mortgage Underwriting Practices: https://www.osfi-bsif.gc.ca/en/guidance/guidance-library/residential-mortgage-underwriting-practices-and-procedures
• CMHC, Transactional Homeowner Mortgage Loan Insurance: https://www.cmhc-schl.gc.ca/professionals/project-funding-and-mortgage-financing/mortgage-loan-insurance/mortgage-loan-insurance-homeownership-programs/cmhc-purchase