Mortgage Refinance in Canada: The Complete 2026 Guide
How a mortgage refinance works in Canada: the 80% limit, the stress test, penalties and costs, a break-even example, alternatives, and the steps to refinance with a broker.

A mortgage refinance replaces your current mortgage with a new one, usually to access equity, consolidate debt or change your rate or amortization. In Canada you can generally borrow up to 80% of your home's appraised value, you'll need to qualify at the stress-test rate, and breaking a closed mortgage mid-term usually means a prepayment penalty. Refinancing at renewal avoids the penalty. It pays off when what you gain clearly outweighs the penalty and closing costs.
Key takeaways
- →A mortgage refinance replaces your existing mortgage with a new one, often for a larger amount, a different rate or a different amortization. It's a new loan, so you need a new approval.
- →The usual limit is 80% of your home's value. Banks can't lend more than 80% on an uninsured mortgage, and FCAC uses the same 80% rule for borrowing against home equity.
- →You'll need to pass the stress test: the greater of 5.25% or your contract rate plus 2%, for refinances with federally regulated lenders.
- →Timing drives the cost. Breaking a closed mortgage mid-term usually triggers a penalty (three months' interest or an interest rate differential). At the end of your term there's no prepayment penalty.
- →Do the break-even math first. Add up the penalty, legal, appraisal and discharge costs, and compare them with the interest you'll save or the higher-cost debt you'll replace.
Short answer: a mortgage refinance in Canada means paying out your current mortgage and replacing it with a new one, usually to borrow against your home equity, consolidate higher-interest debt, or change your rate, term or amortization. You can generally borrow up to 80% of your home's appraised value [1][2], you'll need to qualify under the stress test [3], and if you refinance before your term ends you'll usually pay a prepayment penalty [4]. Done at renewal, there's no prepayment penalty.
This guide is for homeowners who want to understand their options before talking to a lender. It covers how much you can borrow, what it costs, how to tell whether it's worth it, and the alternatives. If you'd rather have someone run the numbers with you, our mortgage refinancing team compares options from 65+ lenders.
What this guide covers:
What a mortgage refinance is, and how it differs from a renewal or a switch
How much you can borrow, and the requirements to qualify
Costs, prepayment penalties and how to find your break-even point
When to refinance, and the alternatives (blend-and-extend, HELOC, second mortgage)
A step-by-step process, plus answers to common questions
What is a mortgage refinance?
A mortgage refinance is when you replace your existing mortgage with a new mortgage agreement, either with your current lender or a new one. The new mortgage pays out the old one. You can increase the amount you borrow (up to the lender's limit), change your amortization, or move to a different rate type or term. Because it's a new loan, the lender re-approves you based on your income, credit, debts and the home's current value.
People often mix up refinancing, renewing and switching. Here's how they compare:
Refinance | Renewal | Switch (transfer) | Blend-and-extend | |
|---|---|---|---|---|
What changes | Loan amount, amortization, rate, term, sometimes lender | New rate and term on the same balance | Same balance moves to a new lender | Old and new rates blended into a longer term |
When | Any time (penalty mid-term) or at maturity | End of term | Usually at end of term | During the term |
New approval and stress test? | Yes [3] | Usually not with your current lender | New lender approves you; uninsured straight switches between federally regulated lenders are exempt from the stress test [5] | Lender's policy |
Prepayment penalty? | Usually, if mid-term on a closed mortgage [4] | No | No, at maturity | No, but fees may apply [6] |
Can you borrow more? | Yes, up to the limit | No | No (except up to $3,000 for costs on a straight switch) [5] | Lender's policy |
If all you want is a better rate at the end of your term, you likely need a renewal or a switch, not a refinance. If you want to change how much you owe, or the structure of the loan, that's a refinance.
Why Canadians refinance their mortgage
FCAC lists several common reasons homeowners renegotiate a mortgage before the end of the term: rates have gone down, your financial situation has changed, your family situation has changed, or your home no longer meets your needs [6]. In practice, most refinances we arrange fall into one of these groups:
Accessing home equity for a big expense. Renovations, a down payment on a second property, tuition or helping family. See equity takeout for how a lump sum works.
Consolidating higher-interest debt. Rolling credit cards, a car loan or a personal loan into the mortgage can replace several payments with one at a lower rate. It can also increase the total interest you pay over the amortization if you don't pay it down faster. Our debt consolidation page explains the trade-offs.
Lowering your rate. If rates are well below your contract rate, breaking the mortgage can still make sense after the penalty. More on that in the break-even section.
Changing your amortization or payment. Extending the amortization lowers the payment but increases total interest; FCAC suggests thinking twice before doing it [7]. Shortening it does the opposite.
Changing ownership. After a separation, refinancing can pay out one owner's share, subject to both parties' agreement and the new lender's approval.
Adding a secondary suite. A specific insured refinance program exists for this, covered below.
How much can you borrow with a mortgage refinance?
For most homeowners, the ceiling is 80% of your home's appraised value, minus what you already owe on mortgages and other loans secured by the home. The Bank Act limits banks to 80% of a property's value on conventional residential mortgages, including refinances [2], and FCAC explains that you can usually borrow up to 80% of your home's value when you borrow against equity [1].
Illustration (not an offer):
Step | Amount |
|---|---|
Appraised value of the home | $800,000 |
80% of the appraised value | $640,000 |
Current mortgage balance | $420,000 |
Maximum additional borrowing (before costs) | up to $220,000 |
The appraisal sets this number, not an online estimate or your property tax assessment, so build in a cushion. Any penalty or closing costs you add to the loan also come out of that room. Lenders can also set lower limits for some properties or borrowers.
The HELOC portion is capped at 65%
If part of the refinance is a home equity line of credit (HELOC), OSFI expects federally regulated lenders to limit the revolving, interest-only portion to 65% of the home's value. Borrowing between 65% and 80% has to be on an amortizing mortgage portion [8]. That's why many readvanceable mortgage products combine a mortgage and a line of credit.
The exception: adding a secondary suite
Since January 15, 2025, homeowners can use an insured refinance to build a self-contained secondary suite. The as-improved value of the home must be under $2 million, borrowing can go up to 90% of the value (including the value added by the suite), amortization can be up to 30 years, and the extra financing can't exceed the project costs [9]. The borrower or a close relative must live in the home, and the suite can't be used as a short-term rental [9][10]. Outside programs like this, most refinances are conventional mortgages capped at 80%.
Mortgage refinance requirements in Canada
A refinance is underwritten like a new mortgage. Expect your lender to look at:
Equity. Enough value that the new total stays within 80% (or the lender's lower limit).
The stress test. Federally regulated lenders must qualify you at the higher of 5.25% or your contract rate plus 2%, and FCAC confirms this applies when you refinance or take out a HELOC [3][11]. At an illustrative 4.49% contract rate, you'd qualify at 6.49%. Lenders that aren't federally regulated, such as many credit unions, may also apply a stress test [3].
Debt service ratios. FCAC's guidance is that housing costs shouldn't exceed about 39% of gross income (GDS) and total debt payments about 44% (TDS), though some approvals go slightly higher [3].
Credit. Lenders review your credit report and score [3]. Paying out high-interest debt can help your ratios, because the monthly minimums on cards and loans often outweigh the increase in the mortgage payment.
Income documents. Pay stubs and an employment letter, or two years of tax returns and Notices of Assessment if you're self-employed.
Property. An appraisal, recent property tax bill and, for condos, condo fee details.
If a bank can't approve the amount you need, alternative and private lenders may be an option, usually at higher rates and fees [1]. 8Twelve arranges these mortgages; we don't lend or fund them. Our guide to private mortgage refinance fees in Ontario explains what to expect.
See what a refinance could look like for you. Compare options across 65+ lenders, OAC, before you decide. Explore mortgage refinancing
How much does a mortgage refinance cost in Canada?
Your total cost depends mostly on timing (mid-term or at renewal), your mortgage type and your lender. FCAC lists the costs to check before breaking a mortgage [6] and the fees that can apply when you borrow against equity [1]:
Cost | When it applies | What to ask |
|---|---|---|
Prepayment penalty | Breaking a closed mortgage before the end of the term [4] | "How is my penalty calculated, and what's the exact amount on a payout statement?" |
Appraisal fee | Usually, to confirm value [1] | "Will the lender order and pay for it?" |
Legal or notary fees | Registering the new mortgage [1] | "Is there a legal fee rebate?" |
Discharge or registration fees | Removing the old charge and registering a new one [6] | "What's the discharge fee?" |
Title search and title insurance | Often part of closing [1] | "Is it included in the legal fee?" |
Cash-back repayment | If you received cash back on the current mortgage [6] | "Do I have to repay part of my cash back?" |
Administration or reinvestment fees | Lender-specific [6] | "Are there any other fees?" |
Lenders may be willing to pay some or all of the fees [6], so ask, and get every number in writing before you sign.
The prepayment penalty: three months' interest or IRD
For a closed mortgage, the penalty is usually the higher of three months' interest on what you owe or the interest rate differential (IRD). Lenders usually use the IRD when your contract rate is higher than their current rate for a similar term [4]. Lenders calculate the IRD differently. Some use posted rates, and some subtract the discount you were originally given, which can make the penalty larger [4].
FCAC's own illustration: on a $200,000 balance at 6%, with 36 months left and a current 3-year posted rate of 4%, three months' interest is about $3,000, but the IRD is about $12,000. The borrower pays the higher amount [4]. Variable-rate mortgages may use a different calculation, so check your contract.
Two things can reduce what you pay:
Use your prepayment privileges first. A lump-sum prepayment before you break the mortgage lowers the balance the penalty is based on, though some lenders restrict prepayments close to a payout [4].
Know the five-year rule. Under the Interest Act, if your mortgage term is longer than five years, after five years you can pay it off with no more than three months' interest as the penalty [12].
Federally regulated lenders must explain how they calculate the penalty and show prepayment terms in an information box at the start of your mortgage agreement [4].
Is a mortgage refinance worth it? How to find your break-even point
The simplest test: compare the total cost to refinance with the interest you'll save over the time you're sure about, usually the rest of your current term.
Illustration (not an offer; illustrative rates, not current market quotes): you owe $450,000 at 5.49% fixed with 24 years of amortization and 30 months left on your term. You could refinance the same balance at 4.49%.
Keep current mortgage (5.49%) | Refinance (4.49%) | |
|---|---|---|
Monthly payment | about $2,798 | about $2,545 |
Interest paid over the next 30 months | about $59,500 | about $48,600 |
Interest saved over 30 months | about $10,900 |
Now subtract the cost of getting there:
If the penalty is three months' interest (about $6,176 on $450,000 at 5.49%), plus an assumed $2,000 for legal, appraisal and discharge, your cost is about $8,200. You'd come out roughly $2,700 ahead over the 30 months, and break even after about 22 to 23 months.
If the penalty is an IRD of, say, $14,000, plus the same $2,000, your cost is about $16,000. You wouldn't recover it within the remaining term, so refinancing for rate alone may not pay. Waiting for renewal, or a blend-and-extend, could be the better route.
The math changes when you're also paying out high-interest debt. Replacing debt that costs far more than your mortgage rate can make a refinance worthwhile even with a penalty. Our mortgage payment calculator helps you test your own numbers.
When can you refinance your mortgage?
You can ask to refinance at any time, but the cost depends on where you are in your term:
At maturity: your term has ended, so there's no prepayment penalty. You still need a new approval if you're increasing the amount. This is usually the cheapest time to refinance.
Close to maturity: many lenders let you renew early without a penalty, for example 120 days before maturity at TD [13] and 180 days at BMO [14]. Ask whether your lender will refinance within that window without a penalty.
Mid-term: a closed mortgage usually means a penalty [4]. An open mortgage lets you pay it off without one [4].
Shortly after buying: lender policies vary. The penalty tends to be larger when more of the term is left, because the months remaining are part of the calculation [4], and the appraised value has to support the new amount.
If you're only a few months from renewal, waiting is often the cheaper choice. If renewal is years away and high-interest debt is costing you every month, waiting can be the more expensive option.
Mortgage refinance vs blend-and-extend vs HELOC vs second mortgage
Refinancing isn't the only way to access equity or change your mortgage. Here's how the main options compare:
Option | How it works | Best for | Watch out for |
|---|---|---|---|
Refinance | New first mortgage replaces the old one, up to 80% of value [1] | A lump sum now, or a full restructure | Penalty if mid-term [4]; stress test [3] |
Blend-and-extend | Your lender blends your current rate with today's rate for a new, longer term [6] | Lowering your rate without a penalty | Fees may apply; your lender must explain how the blended rate is calculated [6] |
HELOC | Revolving line of credit secured on your home, up to 65% of value [8] | Ongoing or uncertain costs, such as a staged renovation | Variable rate [1]; if you only pay the interest, the balance doesn't go down |
Second mortgage | A separate loan registered behind your first, up to 80% of value combined [1], often from an alternative or private lender | Avoiding a large penalty, or a short-term bridge | Rates usually higher than a first mortgage [1], plus fees; needs a clear exit plan |
FCAC's blend-and-extend example shows how it works: a 5.5% rate with 24 months left, blended with a 4% rate for the rest of a new 60-month term, produces a blended rate of about 4.6% [6]. Your lender's method may differ.
For a revolving option, see our home equity line of credit page. And if you've made prepayments during your term, FCAC notes your lender may let you re-borrow those amounts, though that adds to your balance and interest costs [1].
Pros and cons of a mortgage refinance
Pros
Access a lump sum at a mortgage rate, typically lower than unsecured borrowing [1].
Combine several debts into one payment.
Reset the structure: rate type, term, amortization, and sometimes who's on title.
At renewal, no prepayment penalty.
Cons
Mid-term penalties can cost thousands of dollars [4].
Closing costs (appraisal, legal, discharge) [1][6].
You must re-qualify, including the stress test [3].
A larger balance or longer amortization can increase total interest [7].
Your home secures the debt, so missed payments carry serious consequences [1].
Step by step: how to refinance your mortgage with a broker
Get your payout numbers. Ask your current lender for the penalty (or a payout statement), your balance, maturity date and remaining amortization.
Define the goal. How much do you need, what monthly payment works, and how long will you stay in the home?
Check your equity. Estimate 80% of your home's value and subtract what you owe. A broker can give you a realistic value range before the appraisal.
Compare structures and lenders. A broker can compare a full refinance, a blend-and-extend quote from your current lender, a HELOC and, where it fits, a second mortgage.
Apply and gather documents. ID, income documents, your mortgage statement, property tax bill and statements for any debts being paid out.
Review written disclosures. In Ontario, licensed mortgage brokerages must give you written disclosures, including fees, conflicts of interest and material risks, generally at least two business days before you commit [15]. Read them and ask questions.
Appraisal, approval and closing. The lender confirms the value and approves the file, and a lawyer or notary pays out the old mortgage and registers the new one.
When a mortgage refinance may not make sense
Your penalty is large and the rate gap is small. If the break-even point falls after your term ends, consider waiting for renewal or asking about a blend-and-extend.
You'd be refinancing to cover ongoing overspending. Consolidation helps when it comes with a plan to keep the cards paid off.
You're stretching the amortization just to lower the payment. It can be the right call for cash flow, but it costs more interest over time [7]. Use your prepayment privileges later to claw some of it back.
You may sell soon. Closing costs and a new penalty clock may outweigh the benefit.
From our desk: The most common refinance question we hear is "What's my penalty?" Ask your lender for the exact figure in writing before you do anything else. That one number usually decides whether it's refinance now, wait for renewal, or keep the first mortgage and look at a HELOC or second mortgage instead.
Planning a mortgage refinance with October 2026 rates in mind
The Bank of Canada's policy rate is 2.25%, where it has been at every decision in 2026, and the next announcement is October 28, 2026 [16]. Prime at the big banks is 4.45% [17]. Variable rates follow prime, while fixed rates are priced off bond yields, so they can move even when the policy rate doesn't. For a closer look, see our outlook on whether mortgage rates will go up and what a Bank of Canada rate hike in 2026 could mean. Neither should push you into a rushed decision: if a refinance only works under one rate forecast, it's worth a second look.
Check today's rates before you decide. Fixed and variable, compared across 65+ lenders. Compare today's rates
The bottom line
A mortgage refinance can lower your borrowing costs, pay out higher-interest debt or fund a major project, but it's a new loan with real costs. Know your penalty, check your equity against the 80% limit, confirm you'll qualify at the stress-test rate, and compare the alternatives before you commit. If your renewal is close, waiting a few months may save you the penalty entirely.
Run your numbers. Estimate your new payment with our mortgage payment calculator, or start with our mortgage renewal calculator if you're near the end of your term.
This article is for general information only and isn't financial, legal or tax advice. Rates, products and terms change without notice and are available on approved credit (OAC). The rate and terms you qualify for depend on your individual financial situation, including credit, income, property and loan-to-value. "Best rates" means the most suitable options available for your situation, not a guarantee of the lowest rate. Example rates and payments are for illustration only, as of October 2026, and are not an offer. 8Twelve Mortgage arranges mortgages through 65+ lenders and does not lend directly. Licensed across Canada — see our licences.
Consolidating unsecured debt into your mortgage may lower your monthly payment but can increase the total interest paid over the amortization period. 8Twelve does not fund second or private mortgages; we arrange them with third-party lenders, and lender and brokerage fees are disclosed in writing before you commit. Rate data is from the Bank of Canada as of October 16, 2026 (policy rate) and October 14, 2026 (prime). Example payments use semi-annual compounding; rates, penalties and costs in the examples are assumptions for illustration only. Lender renewal windows (TD, BMO) are examples from those lenders' public pages as of October 20, 2026, and can change.
Frequently asked questions
Sources
- Borrowing against home equity - FCAC
- Bank Act, s. 418 (Restriction on residential mortgages) - Justice Laws Website
- Preparing to get a mortgage (stress test, GDS and TDS) - FCAC
- Mortgage fees: Prepayment penalties - FCAC
- OSFI exempts uninsured mortgage straight switches from the prescribed MQR (Nov 21, 2024) - OSFI
- Breaking your mortgage contract - FCAC
- Renewing your mortgage - FCAC
- Guideline B-20: Residential mortgage underwriting practices and procedures - OSFI
- Mortgage insurance rule changes to enable homeowners to add secondary suites (Oct 8, 2024) - Department of Finance Canada
- CMHC Refinance (secondary suites) - CMHC
- Minimum qualifying rate for uninsured mortgages - OSFI
- Interest Act, s. 10 - Justice Laws Website
- Mortgage renewal tips - TD Canada Trust
- How to renew your mortgage - BMO
- Mortgage brokerage disclosure requirements - FSRA
- Policy interest rate (rate history and 2026 schedule) - Bank of Canada
- Prime rate (series V80691311) - Bank of Canada
Last reviewed on October 20, 2026
