Big Bank Mortgage Renewal Letters Decoded: What the Fine Print Doesn't Tell You

A mortgage renewal letter means the notice a lender sends before a homeowner's current mortgage term ends, offering a new rate and term to continue the mortgage — and in Canada, federally regulated lenders are required to send one. It usually looks official and final, which is exactly why so many homeowners sign and return it without comparing it against anything else.

This guide walks through a renewal letter section by section — what each line actually means, and what most letters don't spell out plainly. lendsimpl reviews renewal letters with Ontario homeowners regularly, and the same few details tend to be the ones that change whether renewing as-is is actually the best move.

Quick answer: A mortgage renewal letter shows the rate, term, and payment your current lender is offering to continue your mortgage. It's the lender's standard renewal offer, not automatically their best available rate, and federally regulated lenders must send it at least 21 days before your term ends, according to the Financial Consumer Agency of Canada. What the letter often doesn't spell out plainly: whether your mortgage is a collateral charge that makes switching lenders more expensive, and that many homeowners switching lenders at renewal no longer need to pass a new stress test at all, under a 2024 OSFI exemption. Below, the letter is decoded line by line.

Below: what a renewal letter actually is, a line-by-line walkthrough of what's in it and what's missing, staying vs. switching, what to do before signing, the Ontario picture, five mistakes to avoid, and the questions homeowners ask most at renewal time.

Key Takeaways

• Federally regulated lenders must send a mortgage renewal statement at least 21 days before your term ends, and it must state your rate won't increase before that date, according to FCAC.
• The rate shown on your renewal letter is the lender's standard renewal offer — not automatically their best available rate, and it's often open to negotiation.
• If your mortgage was registered as a collateral charge, switching lenders at renewal usually means a full discharge and re-registration rather than a simple transfer — a detail rarely spelled out in the letter itself.
• Since November 2024, OSFI no longer requires most uninsured borrowers to pass a new stress test to switch lenders at renewal, as long as the loan amount and amortization don't increase.
• Roughly 1.5 million Canadian households have already renewed their mortgage at a higher rate, with about 1 million more set to renew, according to CMHC's 2026 renewal-wave research.
• A licensed Ontario mortgage broker can compare your renewal offer against other lenders before your signature locks it in.

What a Mortgage Renewal Letter Actually Is

A mortgage renewal letter is the formal notice a lender sends offering to continue a mortgage under a new rate and term once the current one ends — it is not the same thing as your mortgage maturing, which is simply the date your current contract's term expires.

Definition moment: Renewal (the technical word for continuing an existing mortgage balance under a new rate and term with the same lender) is different from refinancing, which usually means changing the loan amount, term structure, or lender in a more involved process.

By law, federally regulated lenders — the banks most homeowners deal with — must send this renewal statement at least 21 days before the term ends, and it must include the same type of information found in the original mortgage agreement: interest rate, payment frequency, term, and effective date, according to the Financial Consumer Agency of Canada. The letter must also confirm the offered rate won't increase before the actual renewal date.

This year, more Ontario homeowners than usual are opening one of these letters. CMHC's 2026 renewal-wave research describes roughly 1.5 million Canadian households that have already renewed their mortgage at a higher rate, with another 1 million or so set to sign new terms in the year ahead — making this the largest renewal period on record.

Bottom line: The letter is required, regulated, and generally accurate about what it discloses. The issue isn't what's wrong with it — it's what it leaves for the homeowner to figure out alone, which is exactly what the next section walks through.

Line by Line: What's Actually in the Letter — and What It Doesn't Say

Reading a renewal letter well means looking past the big rate number at the top and checking what each other line actually implies for your specific mortgage.

None of this makes the letter misleading — FCAC's disclosure rules cover what must be included. The gap is simply that a renewal letter is written to move a homeowner toward signing that specific offer, not to help them compare it against anything else.

Staying vs. Switching at Renewal: What's the Real Difference

The difference between renewing with your current lender and switching to a new one comes down to effort versus potential savings — staying is simpler on paper, but it isn't automatically cheaper.

Switching lenders got meaningfully easier for many homeowners in late 2024. Since November 21, 2024, OSFI exempts most uninsured borrowers doing a straight switch — moving to a new lender at renewal with no increase to the loan amount or amortization — from having to pass a new Minimum Qualifying Rate stress test. Lenders still underwrite the loan carefully under OSFI's Guideline B-20, so income, credit, and debt levels are still assessed — but the stress-test hurdle that once discouraged shopping around is gone for many straight-switch cases.

The collateral-charge detail from the table above matters most right here: a standard charge mortgage can often move to a new lender with little friction, while a collateral charge typically requires discharging the old registration and registering a new one, adding legal and administrative costs that a straight rate comparison won't show.

Our guide to refinancing vs. renewing your mortgage breaks down when a fuller refinance makes more sense than either option.

See the 2026 mortgage rule changes for more on the straight-switch stress test exemption and what else changed this year.

Step by Step: What to Do Before You Sign Your Renewal Letter

A little homework before the renewal deadline generally pays for itself, whether the end result is staying with your current lender or moving to a new one.

1. Find out whether your mortgage is a standard or collateral charge before assuming a switch would be simple or free — your current lender or a broker can confirm this quickly.
2. Call your current lender and ask directly whether the letter's rate is their best offer. Renewal rates are frequently negotiable, especially for homeowners with strong payment history.
3. Compare that offer against at least one or two other lenders, or work with a broker who can shop multiple lenders at once.
4. Confirm whether switching would require a new stress test — many uninsured straight switches no longer do, under OSFI's 2024 exemption, provided the loan amount and amortization stay the same.
5. Read the prepayment privilege and portability terms, not just the headline rate, since those affect flexibility for the entire new term.

What This Means for Ontario Homeowners

Renewal letters are landing in more Ontario mailboxes than usual this year, as part of what CMHC describes as the largest wave of mortgage renewals on record, with roughly 1.5 million Canadian households already renewed at a higher rate and about 1 million more still to come.

Homeowners across Scarborough, Richmond Hill, North York, Pickering, Ajax, and Ottawa are bringing lendsimpl their renewal letters for exactly this reason — to understand what the rate actually compares to, whether their mortgage is a collateral charge, and whether a straight switch could be worth the paperwork. Legal and registration costs for switching lenders can vary somewhat by municipality, which is worth factoring in alongside the rate itself.

Bottom line: The disclosure rules are the same across Ontario, but what makes sense to do with a renewal letter depends on your specific mortgage, lender, and goals. lendsimpl is a licensed Ontario mortgage brokerage (FSRA #13763) that reviews renewal letters with homeowners across the province.

5 Mistakes to Avoid When Reading a Renewal Letter

These mistakes come up often when homeowners work through a renewal letter alone — all avoidable with a bit of extra homework before the deadline.

1. Signing and returning the letter right away. The 21-day minimum notice period means there's usually more time to compare options than the letter's tone suggests.
2. Assuming the offered rate is final. Renewal rates are frequently negotiable, particularly with a strong payment history.
3. Not checking whether the mortgage is a collateral charge before assuming a lender switch would be simple or free.
4. Focusing only on the rate and skipping the prepayment privilege and portability terms, which affect flexibility for the whole new term.
5. Waiting until the last few days before the deadline to start comparing, which leaves little time to negotiate or shop around properly.

Useful Resources for Ontario Homeowners

Understand what breaking your mortgage early would actually cost with our mortgage break penalty guide before deciding between renewing and refinancing sooner.

Compare fixed vs. variable mortgage structures when deciding what to choose at renewal.

Read more on Canada's 2026 mortgage renewal wave for the bigger picture behind this year's letters.

See our Ontario mortgage renewal overview for a full look at the renewal process and what lendsimpl can help compare.

Frequently Asked Questions — Mortgage Renewal Letters in Canada

When will I receive my mortgage renewal letter in Canada?

If your mortgage is with a federally regulated lender, such as a major bank, it must send you a renewal statement at least 21 days before your current term ends. The statement must include your offered rate, term, payment frequency, and effective date, and confirm the rate won't increase before your renewal date.

Why did my mortgage renewal offer look different from what I expected?

Renewal offers reflect the lender's standard renewal terms for your mortgage at that point in time, not a personalized best offer. It's common for the rate or terms shown to differ from what you'd see marketed to new customers, which is part of why comparing the offer is worthwhile.

Can I negotiate the rate on my mortgage renewal letter?

Often, yes. The rate shown is the lender's standard renewal offer, not necessarily their lowest available rate. Calling your lender directly, or having a broker do it on your behalf, can sometimes result in a better offer than the one printed on the letter.

Do I need to pass a new stress test to switch lenders at renewal?

Often not anymore. Since November 2024, OSFI exempts most uninsured straight switches — moving to a new lender at renewal with no increase to loan amount or amortization — from a new Minimum Qualifying Rate stress test, though lenders still underwrite the loan under Guideline B-20.

What's a collateral charge, and why does it matter when I renew?

A collateral charge is a mortgage registered for more than the loan amount, tied to the lender's general security rather than just the mortgage itself. Switching lenders with a collateral charge usually means a full discharge and re-registration, which adds legal and administrative costs a rate comparison alone won't show.

Should I use a mortgage broker to review my renewal letter?

It's a good idea — a broker can confirm your charge type, check whether a straight switch applies to your mortgage, and compare your offer against other lenders before your deadline. lendsimpl is a licensed Ontario mortgage brokerage, FSRA #13763.

Disclaimer

This article is for general educational purposes only and should not be taken as financial, legal, or mortgage advice. Mortgage options, rates, approvals, and lender requirements can vary based on borrower profile, property details, credit history, income, equity, documentation, and current market conditions. Speak with a licensed mortgage professional before making a mortgage decision. lendsimpl is a licensed mortgage brokerage in Ontario (FSRA #13763).