Mortgage Renewal Mistakes to Avoid in Canada

The most common mortgage renewal mistakes in Canada are signing the lender's renewal letter without shopping around, assuming you have no leverage, ignoring the penalty for switching, and choosing a term that does not match your plans. A renewal is a fresh negotiation, not an automatic continuation — and lenders count on borrowers treating it like paperwork.

Why your renewal is a decision, not a formality

At the end of every mortgage term, your lender sends a renewal offer with a new rate and term. Accept it and the contract continues; do nothing and it may auto-renew into terms you never negotiated. Either way, you are not locked in until you sign.

Your leverage comes from the fact that another lender can pay out your existing mortgage and become your new one. That is why the rate on the renewal letter is often not the best rate that lender would give a new client. Comparing offers, and telling your current lender you are comparing, is the highest-value thing you can do at renewal.

Mistake 1: Signing the first renewal offer

The renewal letter is a starting point, not a final price. Lenders routinely hold back their most competitive rates for borrowers who ask, or who show a competing offer. Before you sign:

• Ask your current lender for their best renewal rate in writing, and ask whether a different term or product would price better.
• Get at least one quote from another lender or a mortgage broker.
• Compare the total cost you will actually pay, including any fees, not just the headline rate.

If the gap is small, staying can be sensible — switching has real costs and paperwork. If it is not, you have a decision to make. Our guide to switching mortgage lenders walks through the process step by step.

Mistake 2: Assuming you will qualify the same way you did before

If you stay with your existing lender, you usually do not have to requalify — the lender simply continues the loan on new terms. That convenience hides a trap: the terms may be worse than what a competing lender would offer a borrower in your current situation.

If you switch lenders, you generally do need to qualify again, including the federal mortgage stress test. Federally regulated lenders apply the higher of your contract rate plus two percentage points or the published qualifying-rate floor. Confirm the current floor with OSFI or your lender, because it changes over time. Qualification also runs through GDS and TDS ratios and your credit profile. If your income dropped, your debts grew, or you took on a car loan since you last applied, your options may be narrower than you expect. Read how the stress test works before you assume a switch is out of reach.

If you bought with less than 20% down, your mortgage is insured — CMHC is one of the providers — and switching lenders involves that insurer's transfer rules. Ask both lenders how the transfer is handled rather than assuming it is automatic.

Mistake 3: Ignoring the cost of breaking your current mortgage

Switching lenders mid-term means discharging the existing mortgage, and that can trigger a penalty. On a fixed-rate mortgage the penalty is often the greater of three months' interest or the interest rate differential (IRD), and IRD can be large when your existing rate sits well above current rates. Variable-rate mortgages are usually cheaper to break, often three months' interest.

Not all lenders calculate IRD the same way. Some use a posted rate, others a discounted rate, and the difference can be substantial. Ask for the penalty in writing before you commit to switching, and understand how IRD is calculated. If the penalty is larger than the interest you would save, waiting for the maturity date may be the better move.

Mistake 4: Picking a term that does not fit your plans

A renewal is the cheapest moment to adjust your mortgage, and the most common slip is defaulting to the same term out of habit. Ask yourself how long you expect to own the home and how stable your income is. A short term keeps you flexible if you may sell or refinance; a longer term gives you payment certainty.

Also read the prepayment privileges on the renewal offer. Some lenders allow a percentage of the original principal each year plus a payment increase, and some allow very little. If you plan to pay down faster, confirm the terms permit it without penalty. And if your current mortgage is registered as a collateral charge, moving it to another lender may cost more than a standard transfer — ask before you assume a switch is simple.

Mistake 5: Renewing without reviewing the rest of your finances

Your renewal is a natural checkpoint. The Bank of Canada policy rate and your lender's prime rate affect variable-rate pricing and any home equity line of credit tied to your mortgage. If you have a HELOC, higher rates mean your interest-only payments rise. Renewal is also when you can shorten your amortization if cash flow allows, or consolidate other debts — but only if the math genuinely favours it.

Do not let a renewal become an unplanned refinance. Adding debt to your mortgage spreads it over a long amortization and can increase total interest even when the monthly payment drops. Our step-by-step renewal guide and the mortgage renewal calculator can help you model the options.

What to check before you sign anything

How to approach renewal calmly

Start roughly 90 to 120 days before maturity — many lenders allow a rate hold well ahead of the date. Confirm your maturity date, gather your renewal offer, and request competing quotes. Then compare total cost, not just the rate: penalty, fees, term, and flexibility all matter. If nothing beats your current lender's offer after costs, staying is a legitimate answer. If something does, you still have time to make the switch properly.