Mortgage amortization is the total length of time it takes to pay off your mortgage in full, including both principal and interest, assuming your payments stay the same and you never refinance. In Canada the standard is 25 years, and most lenders offer a range that runs from about 5 years up to 30.
Amortization is not the same thing as your mortgage term. The term is the length of a single contract with your lender, usually one to five years, after which you renew at the rates available then. Amortization is the long view. It is how many years of payments stand between you and owning your home outright.
How long an amortization you can choose depends largely on your down payment. If you put down less than 20 percent of the purchase price, your mortgage is high-ratio and requires default insurance through CMHC or a private insurer such as Sagen or Canada Guaranty. Insured mortgages were capped at 25 years for a long time. That changed on December 15, 2024, when the federal government began allowing 30-year amortizations on insured mortgages for every first-time buyer and for anyone purchasing a newly built home. The same set of reforms lifted the insured price ceiling to 1.5 million dollars, which carries real weight in Toronto, where plenty of entry-level homes sit close to that number.
With 20 percent or more down, your mortgage is uninsured and no federal cap on amortization applies. Many lenders will write 30 years, and a few stretch to 35, though the longer options sometimes come with a slightly higher rate.
Why the length matters
A longer amortization lowers your monthly payment, because the balance is spread thinner across more years. Interest is the catch. Carrying the debt for 30 years instead of 25 can add tens of thousands of dollars in interest over the life of the loan at the same rate. A longer amortization also helps you qualify under the federal stress test, since smaller payments are easier to pass, but it does not erase that requirement.
Your down payment, your insurance status, and whether the home is new or resale together decide which amortization lengths are actually on the table for you.
Related reading: How Much Down Payment Do You Need in Toronto?, What Is Mortgage Default Insurance in Ontario?, and How Much Income Do You Need to Buy a Home in Toronto?
