Five renewal mistakes that quietly cost money
None of these look like mistakes at the time. That is why they are common. Each one has a specific fix that takes less than an afternoon.
Updated July 25, 20261. Signing the first offer
The renewal statement arrives, the rate looks broadly like what you have seen advertised, signing takes two minutes, and that is the end of it. This is the default outcome and it is designed to be.
FCAC: if you do not take action, the renewal of your mortgage term may be automatic. This means you may not get the best interest rate and conditions. If your lender plans on automatically renewing your mortgage, it will say so in the renewal statement.
Source: Financial Consumer Agency of Canada, read July 25, 2026.
The fix. One written competing quote before you respond. It costs an hour and it converts the letter from a decision into an opening offer.
2. Extending the amortisation to lower the payment
This is the most expensive mistake on the list and the one that feels most like relief at the time. Your payment is going up, the lender offers to stretch the remaining amortisation, and the payment comes back down to something manageable.
FCAC's own note at the top of its renewal page: think twice before extending your amortisation to lower your payments, because the interest costs that you will need to pay will be higher, and this may add up to thousands or tens of thousands of dollars.
There is a legitimate use for it. If the alternative is genuinely missing payments, extending the amortisation is far better than defaulting, and it is one of the tools lenders use to help borrowers in difficulty. The mistake is using it to smooth over a payment increase you could actually absorb, because the cost arrives later and quietly.
The fix. Before agreeing, ask for the total interest cost over the remaining amortisation both ways. If you extend for cash flow reasons, ask about prepayment privileges at the same time, so you can shorten it again when things improve.
3. Not knowing your charge type
Standard charge or collateral charge. Most borrowers have never been told which they have, and it decides how expensive it is to leave.
FCAC's description of the collateral charge case is specific: you may have to pay fees covering the removal of the charge from your existing mortgage and the registration of the new one, and you must repay in full or transfer to the new lender all loan agreements secured by the collateral charge, which can include car loans or lines of credit.
The fix. Ask your lender which one you have. FCAC's advice is exactly that. Do it now rather than at renewal, because if it is a collateral charge you want to build the extra switching cost into your comparison from the start, and you may want to negotiate harder with your existing lender instead.
4. Carrying optional insurance you never really chose
Creditor insurance, sometimes called mortgage life insurance or balance protection, is frequently added at origination and then carried silently through renewals. It is optional, and a meaningful number of people are paying for it without a clear memory of choosing it.
FCAC: credit or loan insurance is a separate product from a loan or credit card, you do not have to take it for lenders to approve your loan, this type of insurance is optional, federally regulated financial institutions cannot pressure you into taking it, and you must give your express consent to obtain it.
Source: Financial Consumer Agency of Canada, read July 25, 2026.
The fix. Look at your mortgage statement and find out whether you are paying it and how much. Then ask for the sample certificate of insurance, which FCAC notes you can request without signing up, and check the exclusions, the maximum benefit and the maximum age. Compare it against individual life insurance you may already hold, including through work. We wrote a full comparison of the two.
5. Leaving it too late to switch
Switching lenders requires the new lender to approve you, instruct a lawyer or a title service, and register before your maturity date. Renewal statements are only required 21 days ahead. If the statement is your starting gun, you have three weeks to run a process that comfortably takes six or more.
The result is predictable: you run out of time, you renew where you are, and the leverage you had disappears. It is not a dramatic loss and it never shows up as a line item, which is why it repeats every five years.
The fix. Put a calendar reminder 120 days before your maturity date, today. That single reminder is worth more than most of the mortgage advice on the internet.
Ask for your prepayment privileges in writing and note the annual reset date. Most lump sum privileges do not carry over year to year, so an unused privilege is simply lost. If you ever come into money, knowing this in advance is what lets you use it.
Common questions
Is it bad to just sign my mortgage renewal letter?
It is rarely the cheapest outcome. FCAC states that if you do not take action, the renewal of your term may be automatic, which means you may not get the best interest rate and conditions. Signing without comparison is choosing convenience over the one moment in the term when you can leave without a penalty.
Does extending my amortisation at renewal cost me?
Yes, in total interest. FCAC's guidance on its renewal page is to think twice before extending your amortisation to lower your payments, because the interest costs you will need to pay will be higher, which may add up to thousands or tens of thousands of dollars. It is a real tool for genuine hardship and an expensive way to buy comfort otherwise.
Why does my mortgage charge type matter at renewal?
Because it determines what switching lenders costs. FCAC notes that if your mortgage is registered with a collateral charge and you want to switch lenders, you may have to pay fees to remove the existing charge and register the new one, and that you must repay or transfer all loan agreements secured by that collateral charge, which can include car loans or lines of credit.
Is mortgage life insurance from my lender mandatory?
No. FCAC states that credit or loan insurance is optional, that you do not have to take it for a lender to approve your loan, and that federally regulated financial institutions cannot pressure you into taking it. You must give express consent. It is worth checking whether you are already paying for it.
How late is too late to switch lenders at renewal?
There is no legal cutoff, but a new lender needs time to approve, instruct and register before your maturity date. Starting in the final two or three weeks usually means you run out of runway and renew where you are by default, which removes the leverage the whole exercise depends on.
Sources
- Financial Consumer Agency of Canada, Renewing your mortgage. Source for the 21 day renewal statement rule, what a renewal statement must contain, automatic renewal, and the costs of switching lenders. Read July 25, 2026.
- Financial Consumer Agency of Canada, Mortgage fees: prepayment penalties. Source for how three months interest and the interest rate differential are calculated. Read July 25, 2026.
- Office of the Superintendent of Financial Institutions, Minimum qualifying rate for uninsured mortgages. Source for the minimum qualifying rate definition and the straight switch exemption. Page last updated January 29, 2026.
- Financial Consumer Agency of Canada, Credit or loan insurance. Source for the rules on optional creditor insurance and express consent. Read July 25, 2026.
- Canada Mortgage and Housing Corporation, Renewal wave peaks but still dominates mortgage market. Source for the residential mortgage debt total and the 90 plus day delinquency rate. Released May 12, 2026.
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