Porting Your Mortgage in Canada: How to Transfer When You Move
What Does It Mean to Port a Mortgage in Canada?
Porting a mortgage means transferring your existing mortgage—with its current rate, terms, and conditions—from one property to another when you move. Instead of breaking your mortgage, paying a potentially enormous penalty, and starting fresh with a new mortgage at current rates, you carry your existing mortgage to your new home.
For many Canadian homeowners, mortgage portability is one of the most valuable—and most overlooked—features of their mortgage agreement. When interest rates have risen since you took out your mortgage, porting allows you to keep your lower rate. When rates have dropped, you might be better off breaking your mortgage and getting a new one. Understanding when and how to port your mortgage is essential knowledge for any Canadian homeowner considering a move.
This guide covers everything you need to know about porting your mortgage in Canada, including how the process works, what a blend-and-extend option entails, how penalties are calculated if you choose to break instead of port, and what options are available if you have bad credit.
- Mortgage portability allows you to transfer your existing mortgage rate and terms to a new property, potentially saving thousands in prepayment penalties
- Not all mortgages are portable—variable-rate mortgages and some fixed-rate products may not include portability
- Blend-and-extend options let you combine your existing mortgage with additional borrowing at current rates
- You typically have 30 to 120 days to complete the port, depending on your lender
- Borrowers with bad credit may face challenges qualifying for a port if their creditworthiness has declined since the original mortgage
How Mortgage Portability Works in Canada
Mortgage portability is a feature built into many Canadian fixed-rate mortgage products. When you sell your current home and purchase a new one, the portability feature allows you to transfer your existing mortgage balance, rate, and remaining term to the new property. The key word here is “feature”—portability is not a right, and not all mortgages include it.
The Basic Mechanics of Porting
When you decide to port your mortgage, the following process typically unfolds:
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Review Your Current Mortgage Agreement
Check your mortgage contract to confirm that your mortgage includes a portability clause. This is usually found in the terms and conditions section. If you are unsure, contact your lender directly to ask whether your mortgage is portable.
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Notify Your Lender of Your Intention to Port
Before you list your current home or make an offer on a new one, contact your lender to discuss porting. They will explain the specific process, timeline requirements, and any conditions that must be met.
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Qualify for the New Property
Even though you are keeping your existing mortgage, you still need to qualify for the new property. The lender will assess whether the new property is acceptable as collateral and whether your current financial situation still meets their lending criteria. This includes a fresh credit check, income verification, and property appraisal.
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Coordinate the Timing of Your Sale and Purchase
Most lenders require that the sale of your current home and the purchase of your new home occur within a specific timeframe—usually 30 to 120 days of each other. Some lenders allow the purchase to happen before the sale, while others require the sale to close first.
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Complete the Port
Once both transactions close within the allowed timeframe, the mortgage is officially transferred to the new property. Your rate, remaining balance, and term continue as before.
Portability Does Not Mean Automatic Approval
A common misconception is that having a portable mortgage guarantees you can transfer it. In reality, the lender must re-qualify you for the new property. If your income has decreased, your debt levels have increased, or your credit score has dropped significantly since you obtained the original mortgage, the lender may decline the port. This is especially important for borrowers who have experienced financial difficulties since taking out their mortgage.
Understanding Blend-and-Extend Mortgages
One of the most useful features that accompanies mortgage portability is the “blend-and-extend” option. This becomes relevant when you need to borrow more money for your new home than your current mortgage balance.
How Blend-and-Extend Works
Suppose you are porting a $300,000 mortgage at 3.50 percent with three years remaining on your term. Your new home costs $500,000, and after your down payment, you need a total mortgage of $400,000. The additional $100,000 must be borrowed at current market rates.
With a blend-and-extend option, the lender combines your existing mortgage and the new borrowing into a single mortgage with a blended interest rate. The blended rate is a weighted average of your old rate and the current rate:
| Component | Amount | Rate | Weight |
|---|---|---|---|
| Existing mortgage (ported) | $300,000 | 3.50% | 75% |
| New borrowing | $100,000 | 5.50% | 25% |
| Blended total | $400,000 | 4.00% | 100% |
In this example, the blended rate of 4.00 percent is significantly lower than the current market rate of 5.50 percent. The borrower saves money on the entire $400,000 compared to breaking the old mortgage and taking out a brand new one at 5.50 percent.
The “Extend” Component
The “extend” part of blend-and-extend refers to extending the term of the entire mortgage. In the example above, the original mortgage had three years remaining. The lender might offer to extend the blended mortgage to a new five-year term, giving the borrower a fresh term at the blended rate. This means the borrower gets the benefit of the lower blended rate for a full five years rather than just the three years remaining on the original term.
The blend-and-extend option is one of the most powerful tools available to Canadian homeowners who are moving in a rising rate environment. I always tell my clients to think of their existing low-rate mortgage as an asset—it has real dollar value. Porting and blending allows you to extract that value and apply it to your new home purchase. The savings can be remarkable, especially when the rate differential between your old rate and current rates is large.
Blend-and-Extend vs. Port-and-Add
Some lenders offer a “port-and-add” option instead of a true blend-and-extend. With port-and-add, your existing mortgage is ported at its original rate and term, and the new borrowing is added as a separate mortgage component at the current rate. You end up with two “buckets” of mortgage debt at different rates with potentially different maturity dates.
| Feature | Blend-and-Extend | Port-and-Add |
|---|---|---|
| Number of rate buckets | One blended rate | Two separate rates |
| Term alignment | Single new term | May have different maturity dates |
| Simplicity | Simpler to manage | More complex |
| Rate benefit | Blended rate on full amount | Old rate on ported amount only |
| Flexibility at renewal | One renewal date | Potentially two renewal dates |
Ask Your Lender Which Option They Offer
Not all lenders offer both blend-and-extend and port-and-add. Before assuming you can blend, confirm with your lender which option is available. In some cases, only one option may be offered, or the terms of each may differ. Understanding the specifics of your lender’s portability policy is crucial to making the right decision.
Lender Portability Policies: A Comparison
Each Canadian lender has its own policies regarding mortgage portability. Here is a general overview of how some of the major lenders handle porting:
| Lender Type | Portability Available | Porting Window | Blend-and-Extend | Key Restrictions |
|---|---|---|---|---|
| Big Five Banks (RBC, TD, BMO, Scotiabank, CIBC) | Most fixed-rate products | 30-120 days | Generally available | Must re-qualify; property must meet standards |
| Credit Unions | Varies widely | 30-90 days | Some offer it | May be limited to same province |
| Monoline Lenders (MCAP, First National) | Most products | 30-120 days | Generally available | Specific documentation requirements |
| B-Lenders (Home Trust, Equitable) | Limited | 30-60 days | Rarely available | More restrictive qualifying |
| Private Lenders | Rarely | N/A | Not available | Most do not offer portability |
Variable-Rate Mortgages Are Generally Not Portable
If you have a variable-rate mortgage, it is almost certainly not portable. Variable-rate products are typically priced as prime minus a discount (for example, prime minus 0.50 percent), and this discount is tied to market conditions at the time of origination. Since there is no fixed rate to “lock in,” there is nothing to port. If you have a variable-rate mortgage and need to move, you will likely need to break your mortgage, though the penalty for breaking a variable-rate mortgage is typically much lower than for a fixed-rate mortgage—usually three months of interest.
Penalties for Breaking Your Mortgage: Why Porting Matters
Understanding the penalties for breaking your mortgage helps illustrate why portability is so valuable. In Canada, the prepayment penalty for breaking a fixed-rate mortgage is the greater of three months of interest or the Interest Rate Differential (IRD).
Three Months Interest Penalty
This is the simpler of the two calculations. It is simply three months of interest on your outstanding mortgage balance. On a $350,000 mortgage at 4.00 percent, three months of interest would be approximately $3,500.
Interest Rate Differential (IRD) Penalty
The IRD penalty is more complex and can be dramatically larger. It represents the difference between your current mortgage rate and the rate the lender can now charge for the remaining term, applied to your outstanding balance for the remaining term. The exact calculation method varies by lender, and some methods produce much larger penalties than others.
Here is how the IRD calculation works in simplified form:
| Factor | Value |
|---|---|
| Outstanding mortgage balance | $350,000 |
| Current mortgage rate | 4.00% |
| Lender’s current rate for remaining term (3 years) | 5.50% |
| Rate differential | 0.00% (posted rate is higher, so IRD is zero) |
| Penalty (greater of 3 months interest or IRD) | $3,500 (3 months interest) |
In this example, because current rates are higher than the borrower’s rate, the IRD is zero and the penalty is just three months of interest. However, when rates are lower than your current mortgage rate—which was common during the period of declining rates—the IRD can produce penalties of $15,000 to $30,000 or more.
The prepayment penalty on a fixed-rate mortgage can be one of the largest unexpected costs in homeownership—understanding portability can help you avoid it entirely.
How Banks vs. Monoline Lenders Calculate IRD
This is a critical distinction that many borrowers do not realize. Canada’s big banks often calculate the IRD using the posted rate minus your discount, which can inflate the penalty significantly. Monoline lenders (like MCAP and First National) typically use the contract rate, which usually results in a lower penalty.
| Calculation Method | Used By | Example Penalty ($350K, 3 yrs remaining) |
|---|---|---|
| Posted rate method | Big banks | $12,000 – $25,000 |
| Contract rate method | Monoline lenders | $3,500 – $8,000 |
This difference in penalty calculations is one reason many mortgage brokers recommend monoline lenders over big banks—even if the rate is identical, the potential future penalty exposure is significantly lower.
Always Get a Penalty Quote Before Deciding to Port or Break
Before deciding whether to port your mortgage or break it and start fresh, always ask your lender for an exact penalty quote. Do not rely on estimates or online calculators—the actual penalty depends on your lender’s specific calculation method and current rate offerings. Get the number in writing and factor it into your decision.
When Porting Makes Sense (and When It Does Not)
Porting your mortgage is not always the best choice. Here are the key scenarios to consider:
Porting Makes Sense When:
Your current rate is lower than current market rates. If you locked in a rate of 3.00 percent and current rates are 5.50 percent, your existing mortgage is a valuable asset. Porting preserves that low rate on your existing balance.
The prepayment penalty for breaking would be significant. If the IRD penalty to break your mortgage is $15,000 or more, porting allows you to avoid that cost entirely.
You are buying a home of similar or greater value. Porting works best when you need to borrow the same amount or more. If you are downsizing and need a smaller mortgage, porting becomes more complicated because you would be partially paying down the mortgage, which may trigger a partial prepayment penalty.
You can complete the purchase within the porting window. If you can coordinate the sale of your current home and the purchase of your new home within your lender’s required timeframe, porting is usually straightforward.
Porting May Not Make Sense When:
Current market rates are lower than your existing rate. If rates have dropped since you took out your mortgage, you might save more by paying the penalty and getting a new mortgage at the lower rate. Run the numbers: compare the penalty cost to the interest savings over the new term.
You are significantly downsizing. If your new mortgage will be much smaller than your current one, you may face a partial prepayment penalty on the difference. Some lenders handle this better than others—check with your lender.
Your financial situation has changed for the worse. If your credit has deteriorated or your income has decreased, you may not qualify for the port. In this case, you may need to explore other options.
You want to switch lenders. Porting can only be done with your current lender. If another lender is offering a significantly better product or rate, it may be worth paying the penalty to switch.
I always advise my clients to review their mortgage portability terms before listing their home for sale. Understanding your options early in the process gives you more negotiating power and helps you plan your finances. Too often, I see clients learn about their porting options only after they have already made an offer on a new home, which limits their ability to make the best financial decision.
The Porting Timeline: Critical Dates You Need to Know
The porting process involves several time-sensitive steps. Missing any of these deadlines can result in losing your portability option and being forced to pay the prepayment penalty.
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30 Days Before Listing: Contact Your Lender
Reach out to your lender to confirm your mortgage is portable and understand the specific timeline requirements. Ask for a written summary of the porting terms, including the porting window (how many days you have between selling and buying) and any documentation requirements.
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When You Accept an Offer on Your Home: Notify Your Lender
As soon as you accept an offer on your current home, notify your lender that you intend to port. The porting window clock typically starts when the sale closes, though some lenders start it from the date of acceptance. Confirm which date applies to your situation.
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Within the Porting Window: Apply for the Port
Submit your application to port the mortgage to the new property. This involves a full mortgage application process, including credit check, income verification, and a property appraisal of the new home. Do this as early as possible—do not wait until the end of the window.
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Before the Purchase Closes: Receive Approval
Your lender needs to approve the port before the purchase of your new home closes. If there are issues with your application or the new property, you need time to resolve them. Build in a buffer of at least two weeks between approval and closing.
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On Closing Day: Port Completes
On the closing day of your new home purchase, the mortgage is transferred to the new property. Your lawyer will handle the registration and discharge of the mortgage on the old property and the registration on the new one.
Porting Windows by Lender Type
| Lender | Typical Porting Window | Extension Available? |
|---|---|---|
| RBC | 90 days | Case by case |
| TD | 90 days | Case by case |
| BMO | 120 days | Sometimes |
| Scotiabank | 90 days | Case by case |
| CIBC | 60-90 days | Rarely |
| MCAP | 30-90 days | Case by case |
| First National | 90-120 days | Sometimes |
What Happens If You Miss the Porting Window
If you sell your current home but do not purchase a new one within the porting window, you lose the ability to port. Your mortgage will be discharged when your home sells, and the prepayment penalty will apply. This penalty is deducted from your sale proceeds. You will then need to arrange a brand-new mortgage for your next home purchase at current market rates. Missing the porting window can cost you tens of thousands of dollars, so careful timing is essential.
Porting Your Mortgage With Bad Credit
If your credit has deteriorated since you originally obtained your mortgage, porting can become challenging. Here is what you need to understand:
The Re-Qualification Requirement
When you port your mortgage, the lender re-qualifies you. This means they pull your credit report, verify your current income, and assess your debt ratios. If your credit score has dropped significantly—for example, from 720 when you got the mortgage to 580 now—the lender may decline the port even though you have been making your mortgage payments on time.
Options If Your Credit Has Declined
If your lender declines your port due to credit issues, you have several options:
Negotiate with your current lender. If you have maintained your mortgage payments in good standing, your lender may be willing to approve the port despite a lower credit score. Emphasize your payment history and explain any extenuating circumstances that led to the credit decline.
Provide additional security. A larger down payment on the new property, a co-signer, or additional collateral may convince your lender to approve the port.
Accept the penalty and work with a B-lender. If your current lender will not port your mortgage and you need to move, you may need to break the mortgage, pay the penalty, and obtain a new mortgage through a B-lender or alternative lender. While this involves higher costs, it may be necessary if your credit situation prevents porting.
Consider renting out your current home. If porting is declined and the penalty is too high, you might consider keeping your current home as a rental property and obtaining a new mortgage for your next home. This avoids the penalty entirely but requires you to qualify for a second mortgage, which has its own challenges.
Keep Your Credit Strong Even After Getting a Mortgage
One of the best things you can do to protect your future porting options is to maintain strong credit throughout your mortgage term. Continue making all debt payments on time, keep your credit card utilization low, and avoid taking on unnecessary new debt. You never know when life circumstances might require you to move, and having strong credit ensures you can port your mortgage without complications.
Consumer Proposals, Bankruptcies, and Porting
If you have filed a consumer proposal or declared bankruptcy since obtaining your mortgage, porting will be extremely difficult with your current lender. Most A-lenders will decline a port if there is a consumer proposal or bankruptcy on your credit file, even if your mortgage payments have remained current.
In these situations, working with a mortgage broker who specializes in credit-challenged borrowers is essential. They can help you evaluate whether breaking the mortgage and moving to a B-lender makes financial sense, or whether there are creative alternatives that minimize your costs.
I often work with clients who are partway through a consumer proposal and want to move. The reality is that porting is usually not an option for them, but that does not mean they are stuck. With careful planning, we can often structure the move in a way that minimizes the financial impact. The key is to start planning early and involve all the right professionals—your credit counsellor, a mortgage broker, and a real estate lawyer.
Porting vs. Breaking: A Head-to-Head Comparison
To help you decide whether to port or break your mortgage, here is a detailed comparison of a realistic scenario:
Scenario: Moving From a $400,000 Home to a $550,000 Home
Current mortgage: $320,000 at 3.50% with 3 years remaining on a 5-year term. New mortgage needed: $440,000 (after $110,000 down payment on the new home).
| Factor | Option A: Port and Blend | Option B: Break and Get New Mortgage |
|---|---|---|
| Penalty cost | $0 | $14,500 (IRD) |
| Interest rate | 4.14% (blended) | 5.50% (new rate) |
| Monthly payment | $2,326 | $2,666 |
| Monthly savings (port vs. break) | $340/month | — |
| 5-year interest cost | $85,400 | $110,200 |
| Total cost difference over 5 years | Porting saves $39,300 ($24,800 interest savings + $14,500 penalty avoided) | |
In this scenario, porting and blending saves the borrower nearly $40,000 over five years compared to breaking and getting a new mortgage. The savings come from two sources: avoiding the prepayment penalty and locking in a lower blended rate.
When rates have risen since you got your mortgage, porting is almost always the better choice—you are essentially carrying a financial asset from your old home to your new one.
Special Situations in Mortgage Porting
Porting to a Different Province
If you are moving to a different province, you can still port your mortgage in most cases, but there are additional considerations. Some credit unions only operate within a single province and may not be able to port your mortgage across provincial borders. National banks and monoline lenders generally have no issue with interprovincial porting.
Additionally, different provinces have different land transfer taxes and registration requirements, which can affect the overall cost of your move. These costs are separate from the porting process but should be factored into your financial planning.
Porting When Downsizing
If your new home is less expensive than your current one and you need a smaller mortgage, porting becomes more complex. You will be paying down a portion of your mortgage, which may trigger a partial prepayment penalty on the amount being paid down. The remaining balance can be ported at the existing rate.
For example, if you are porting a $400,000 mortgage but only need $300,000 for the new home, you are paying down $100,000. The penalty on that $100,000 prepayment could be significant, especially if calculated using the IRD method.
Porting During a Separation or Divorce
Separation and divorce create unique challenges for mortgage porting. If the mortgage is in both partners’ names, porting may require one partner to be released from the mortgage—which involves the remaining partner qualifying on their own income. If both partners are buying new homes, the mortgage can typically only be ported to one of the new properties.
Separation Agreements and Mortgage Portability
If you are going through a separation, have your separation agreement reviewed by a family law lawyer who understands the implications for your mortgage. The agreement should clearly specify which partner has the right to port the mortgage and how the equity from the current home will be divided. Ambiguity in the separation agreement can delay or complicate the porting process.
Tips for a Smooth Porting Experience
Based on common pitfalls that Canadian homeowners encounter, here are practical tips for ensuring your porting process goes smoothly:
Start Early
Contact your lender before you list your home. Understanding your porting options and timeline requirements before you are under pressure to close a deal gives you more flexibility and reduces stress.
Keep Your Documentation Ready
You will need to provide current income documentation (pay stubs, T4s, Notice of Assessment), identification, and information about the new property. Having these documents organized and ready to submit speeds up the process.
Align Your Closing Dates
The ideal scenario is to close the sale of your current home and the purchase of your new home on the same day. This eliminates any gap where you might need bridge financing and keeps the porting process simple. If same-day closing is not possible, try to keep the gap as short as possible and well within your lender’s porting window.
Have a Backup Plan
Even if you intend to port, have a backup plan in case the port is declined. Know what the penalty would be if you need to break, and have a conversation with a mortgage broker about alternative financing options. Being prepared for the worst case prevents last-minute panic.
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GET STARTED NOWFrequently Asked Questions About Porting Mortgages in Canada
Generally, no. Variable-rate mortgages are typically not portable. The discount from the prime rate that defines your variable rate is tied to market conditions at the time of origination and cannot be transferred to a new property. If you have a variable-rate mortgage and need to move, you will likely need to break it, though the penalty is usually limited to three months of interest.
If you sell your current home but do not complete a purchase within the porting window (typically 30 to 120 days depending on your lender), you lose the ability to port. Your mortgage will be discharged and the prepayment penalty will be deducted from your sale proceeds. You will need to arrange a new mortgage for your next home at current market rates. Some lenders may grant extensions on a case-by-case basis, so it is worth asking if you need more time.
Most lenders allow you to port your mortgage to a new principal residence only. Porting to a rental or investment property is generally not permitted. If you are buying an investment property and moving to a different principal residence, the mortgage can typically only be ported to the principal residence.
Yes, your lender will require an appraisal of the new property to confirm its value meets the loan-to-value requirements. You will typically need to pay for this appraisal, which costs between $300 and $500 in most Canadian markets.
Porting requires re-qualification with your lender, which includes a credit check. If your credit has declined significantly since you obtained your mortgage, your lender may decline the port. Options include negotiating with your lender, providing additional security (larger down payment or co-signer), or accepting the penalty and obtaining a new mortgage through a B-lender.
No. Porting means you, as the borrower, transfer your mortgage to a new property you are purchasing. Mortgage assumption means a different person takes over your mortgage on the same property. These are different processes with different requirements and legal implications.
Yes, CMHC-insured mortgages can generally be ported. The mortgage insurance transfers with the mortgage to the new property. However, if you need additional borrowing for the new property, you may need to pay additional mortgage insurance premiums on the new amount. Your lender and CMHC will work together to facilitate the port.
Final Thoughts: Planning Your Move With Portability in Mind
Mortgage portability is a powerful feature that can save Canadian homeowners thousands—or even tens of thousands—of dollars when they move. By understanding how porting works, knowing your lender’s policies, and planning your timeline carefully, you can avoid prepayment penalties and keep a favourable interest rate that might no longer be available in the current market.
For borrowers with bad credit, the path is more challenging but not impossible. Maintaining your mortgage payments, working to improve your credit score, and engaging the right professionals—a mortgage broker, a credit counsellor, and a real estate lawyer—can help you navigate the complexities of moving with a less-than-perfect credit profile.
The most important step is to start planning early. As soon as you begin thinking about moving, contact your lender to discuss your portability options. The information you gather will help you make the best financial decision for your family and protect the equity you have built in your home.
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