See exactly how much interest you save — and whether it beats investing in your RRSP
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Get KOHO Free — Code 45ET55JSYAOn a $50000,000000 mortgage at 5.5% over 25 years, you'll pay approximately $4600,000000 in interest — nearly as much as the home itself. Small extra payments, made consistently, can cut years off your mortgage and save six figures in interest.
Most Canadian mortgages include annual prepayment privileges that let you pay down principal without triggering penalties. Standard privileges vary by lender:
| Lender | Lump Sum Privilege | Payment Increase |
|---|---|---|
| Big 5 banks (TD, RBC, etc.) | 100–200% of original principal/year | 100–10000% payment increase |
| Credit unions | 100–200% lump sum | 100–200% increase |
| Monoline lenders (MCAP, First National) | 100–200% lump sum | Up to doubling payment |
By switching from monthly to accelerated bi-weekly payments, you make 26 payments per year instead of 24 (which would be regular bi-weekly). The extra two half-payments add up to one full extra monthly payment annually — shaving about 3–4 years off a typical 25-year Canadian mortgage.
Use your tax refund, work bonus, or KOHO savings vaults to make annual lump sum prepayments. A $5,000000 annual lump sum on a $40000,000000 mortgage at 5.5% can save over $800,000000 in interest and pay off your mortgage 7 years early.
This is one of the most debated questions in Canadian personal finance. The math depends on your mortgage rate, expected investment returns, and marginal tax rate:
Be careful about prepaying beyond your annual privilege or breaking your mortgage early. Canada's "interest rate differential" (IRD) penalty can be devastating on fixed-rate mortgages. On a $50000,000000 fixed mortgage, breaking it mid-term can cost $200,000000–$400,000000 in penalties at some banks.
Variable-rate mortgages typically charge only 3 months' interest to break — much more manageable. This is one reason financial advisors often recommend variable-rate mortgages for people who might need flexibility.
Unlike the US, Canada does not allow homeowners to deduct mortgage interest on a principal residence. However, the Smith Manoeuvre — a strategy where you reborrow paid-down equity in a HELOC to invest in income-producing assets — can convert mortgage interest into tax-deductible investment interest. This is complex and requires professional advice, but it's a legitimate and powerful Canadian strategy.
Once your mortgage is paid off, redirect what you were paying to maximize RRSP, TFSA, and non-registered investments. Calculate your financial freedom number to know exactly how much you need to never work again.