What does it really cost to refinance a mortgage in Canada?
Before you break your mortgage, know the full bill. We break down every mortgage refinance cost — prepayment penalty, discharge, legal, appraisal and title fees — and show you when the savings still win.
Prepayment penalty (IRD vs 3-months)Discharge + registration feesLegal & closing costsAppraisal + title insuranceFree/no-fee switch programsPenalty vs savings math
Refinancing looks simple until the quote arrives with a line you didn’t expect: a prepayment penalty to break your current mortgage early. On a fixed-rate mortgage that penalty is calculated as an interest-rate-differential (IRD), and it can run into the thousands — occasionally tens of thousands — depending on your rate, balance, and time left in the term. Stack on discharge fees, new legal and registration costs, an appraisal, and title insurance, and the ‘free money’ from a lower rate can shrink fast. None of that means refinancing is a bad idea — it often still pays off handsomely. It just means the only honest way to decide is to price every cost first, then weigh it against the real savings. That’s exactly what this page walks you through.
What you get
Why Canadians choose Mortgage Squad Advisors.
A plain-language breakdown of every cost that goes into refinancing a mortgage in Canada
How the prepayment penalty is calculated — three months’ interest on variable vs interest-rate-differential (IRD) on fixed
Why an IRD penalty can be surprisingly large, and what drives the number up or down
Mortgage discharge fees and what your current lender typically charges to release the mortgage
New-lender legal, closing, and registration costs — and when a ‘free switch’ program covers them
When an appraisal is required and roughly what it costs by province and property type
Where title insurance fits in and why lenders often require it on a refinance
How CMHC / mortgage-insurance rules can limit an insured refinance and add cost
A clear framework to weigh the total cost against your monthly and lifetime savings
Honest guidance on when refinancing is worth it — and when waiting for renewal is smarter
Maya · 24/7 AI advisor
Question about mortgage refinance? Maya answers instantly in 50+ languages.
Before anything else, we find out what it costs to leave your current lender. We estimate your prepayment penalty — three months’ interest if you’re variable, or the interest-rate-differential (IRD) if you’re fixed — plus the discharge fee. This is usually the single biggest cost, so it goes first. Penalties vary widely by lender and by how they calculate IRD, so we confirm with your actual mortgage terms.
2
Add the closing costs
Next we layer in the other costs to refinance: new-lender legal and registration fees (or whether a no-fee switch/transfer program absorbs them), an appraisal if the lender needs a current value, and title insurance. We total it in writing so you see one all-in number — not a vague ‘it depends.’
3
Weigh cost vs savings
Finally we set the total cost beside the savings from your new rate — both the monthly cashflow and the interest saved over the term — and calculate how many months it takes to break even. If the math works, we proceed with the best of 100+ lenders. If it doesn’t, we’ll tell you to wait for renewal instead. You decide with the full picture.
What does it cost to refinance a mortgage in Canada?
Refinancing means replacing your existing mortgage with a new one — usually to secure a lower rate, pull out equity, or consolidate debt — and doing it mid-term almost always carries costs. The total to refinance a mortgage in Canada is built from a handful of predictable line items: a prepayment penalty to break your current mortgage early, a discharge fee to release it from title, new legal and registration costs with the incoming lender, an appraisal, and title insurance. Depending on the lender, some of these are waived through ‘free switch’ programs; others are unavoidable.
The honest answer to ‘how much?’ is that it varies by lender and province, and the biggest variable by far is the penalty. That’s why we never quote a rate in isolation. We price every cost against your actual mortgage terms first, total it in writing, and set it beside the savings so the decision is grounded in real numbers. If you want the full picture on the refinance itself, start with our mortgage refinancing overview, then use the refinance calculator to sketch the savings side of the equation.
The prepayment penalty: three months’ interest vs the IRD
The prepayment penalty is the cost to break your mortgage before the term ends, and it’s usually the largest single expense in a refinance. How it’s calculated depends entirely on your mortgage type. On a variable-rate mortgage, the penalty is typically three months’ interest — a relatively small, easy-to-estimate figure. On a fixed-rate mortgage, the penalty is the greater of three months’ interest or an interest-rate-differential (IRD).
The IRD is where borrowers get caught off guard. It compares the rate on your contract to a current comparable rate for the time remaining in your term, then charges you roughly the interest the lender loses. The gap between your rate and today’s rate, your outstanding balance, and the number of months left in the term all push the number up — and some lenders use a ‘posted-rate’ method that makes it larger still. That’s why one fixed-rate penalty is a few thousand dollars and another is many times that. Because the calculation varies so widely, we confirm it against your actual mortgage rather than estimating loosely. You can sketch a figure yourself with our prepayment penalty calculator or mortgage penalty calculator, but treat the result as a starting point, not a quote.
Discharge, legal, appraisal and title costs
Beyond the penalty, a refinance carries several closing costs. The discharge fee is what your current lender charges to release the mortgage from your property title — a set administrative amount that varies by lender and province. New-lender legal and registration costs cover a lawyer or title company drawing up and registering the new mortgage; these can run several hundred to over a thousand dollars, though many lenders offer no-fee switch or transfer programs that absorb them to win your business.
An appraisal is often required so the new lender can confirm your home’s current value; the cost depends on province and property type, and is sometimes covered under the same no-fee programs. Title insurance is commonly required to protect against title defects and fraud — a one-time cost priced on your loan amount. Individually these are modest next to a penalty, but together they matter, which is why we total every line in writing. For a broader view of what closing involves, see our closing costs calculator.
Insured mortgages, CMHC rules, and how much you can borrow
Mortgage default insurance changes the refinance picture more through the rules than through a direct fee. In Canada you generally cannot add new default insurance (CMHC, Sagen, or Canada Guaranty) when you refinance to take out equity — refinances that pull cash out are limited to 80% of your home’s appraised value on an uninsured basis. If your current mortgage was insured, breaking it to refinance can mean losing that insured status and re-qualifying on uninsured terms, which can affect both your maximum loan and your rate.
This is why the ‘how much can I borrow’ question is tied to the cost question. If you’re refinancing to consolidate debt or access equity, the 80% ceiling sets your room; if a full refinance is constrained, a HELOC or a debt consolidation mortgage structured as a second can sometimes achieve the goal without breaking a low-rate first. We map these options against your equity and your reason for refinancing so the structure fits the objective, not just the rate.
When is refinancing worth it despite the costs?
Costs don’t make refinancing a bad idea — they just set the bar the savings have to clear. The test is a simple break-even: add up every cost (penalty, discharge, legal, appraisal, title), then divide by your monthly saving from the new rate or the interest you’ll avoid by consolidating expensive debt. That tells you how many months to recoup the outlay. If you’ll stay in the home and the mortgage well past that point, refinancing usually pays; if you’re near renewal or early in a fixed term with a heavy IRD, waiting can be cheaper.
The right answer is genuinely case-by-case. A borrower carrying 20%+ credit-card balances often saves far more than any penalty costs; a borrower with a small rate gap and a large IRD may be better off waiting for their renewal, when switching lenders carries no penalty. As an FSRA-licensed brokerage (#13737) with access to 100+ lenders, our job is to run both scenarios — refinance now versus wait — and recommend the cheaper path, with every fee disclosed in writing. Ask Maya for an instant read, or start a no-obligation review and we’ll put the full cost-versus-savings math in front of you before you commit.
FAQ
Common questions, answered.
Don’t see yours? Ask Maya — instant answer, any time.
What are the main costs of refinancing a mortgage in Canada?
The main costs are: a prepayment penalty to break your current mortgage early (often the largest), a mortgage discharge fee, new-lender legal/closing and registration fees, an appraisal, and title insurance. Some lenders run ‘free switch’ or no-fee transfer programs that cover legal and appraisal costs. Exact amounts vary by lender and province, so the only reliable figure is one built from your actual mortgage terms — which we’ll do before you commit.
How is the prepayment penalty calculated?
It depends on your mortgage type. On a variable-rate mortgage the penalty is usually three months’ interest — relatively small and easy to estimate. On a fixed-rate mortgage it’s the greater of three months’ interest or an interest-rate-differential (IRD), which compares your rate to a current comparable rate over your remaining term. The IRD can be large, especially early in the term or when rates have fallen since you signed. Lenders calculate IRD differently, so the number varies — we estimate it from your specific terms.
Why can the IRD penalty be so large?
IRD grows with three things: a bigger gap between your contract rate and today’s comparable rate, a larger outstanding balance, and more months left in your term. Some lenders also use a ‘posted-rate’ method that inflates the calculation. That’s why one borrower’s fixed-rate penalty is a few thousand dollars and another’s is far more. Because the method varies so much by lender, we always confirm the actual figure with your mortgage contract rather than guessing.
What is a mortgage discharge fee?
It’s an administrative fee your current lender charges to formally release (discharge) the mortgage from your property title when you leave. It’s separate from the prepayment penalty. The amount is set by the lender and varies by province and lender policy. It’s a modest cost compared with a penalty, but it belongs in the total, and we include it so nothing surprises you at closing.
Do I have to pay legal and appraisal fees to refinance?
Often, but not always. A refinance is a new mortgage registration, so it typically involves legal work and registration costs, and lenders frequently require a current appraisal to confirm your home’s value. However, many lenders offer ‘free switch’ or no-fee transfer programs that cover the legal and appraisal costs to win your business — though these can come with conditions. We check which lenders will absorb those fees for your file.
What about title insurance — is it required?
Lenders commonly require title insurance on a refinance to protect against title defects, fraud, and certain survey or registration issues. It’s a one-time cost, generally modest relative to the loan, and priced by the insurer based on your property and mortgage amount. Some no-fee refinance packages fold it in. We’ll tell you whether your lender requires it and what to budget.
Does CMHC or mortgage insurance affect refinancing costs?
Yes, indirectly. You generally can’t add new default insurance (CMHC, Sagen, Canada Guaranty) when you refinance to pull out equity — refinances are typically limited to 80% of your home’s value on an uninsured basis. If your existing mortgage was insured, breaking and refinancing can mean losing that insured status and re-qualifying on uninsured terms. These rules affect how much you can borrow and your rate more than they add a direct fee, and we walk through the implications for your situation.
When is refinancing worth it despite the costs?
Refinancing tends to be worth it when the total savings clearly exceed the total costs within a reasonable window — for example, when a lower rate, consolidating high-interest debt, or funding a renovation saves more over your remaining term than the penalty and fees combined. The break-even test is simple: divide your all-in cost by your monthly saving to see how many months to recoup it. If you’ll stay well past break-even, it usually makes sense. We run this math with your real numbers before you decide.
Is it cheaper to just wait for my renewal?
Sometimes, yes. At renewal you can switch lenders with no prepayment penalty, so if your term is nearly up, waiting can avoid the single biggest cost entirely. If you’re early in a fixed term with a large IRD, the penalty may outweigh the savings and waiting is smarter. But if you’re carrying expensive debt or your rate is well above market, the cost of waiting can exceed the penalty. We compare refinance-now against wait-for-renewal so you pick the cheaper path.
