Move-Up Buyer Guide
Bridge Financing vs Porting Your Mortgage: What Every Tri-Cities Move-Up Buyer Needs to Know
When you’re buying a new home before your current one sells — or carrying a great rate into your next purchase — two mortgage strategies come up repeatedly: bridge financing and porting your mortgage. They sound similar, but they solve completely different problems. If you’re a move-up buyer in Coquitlam, Port Moody, or Port Coquitlam, understanding which tool applies to your situation can save you thousands of dollars and prevent a very stressful closing day. This guide breaks down how each option works in plain language, when each one makes sense, and why confirming the details with a licensed mortgage broker before you make any offers is non-negotiable. For a broader look at the move-up process, start with the Move-Up Buyer Guide for Coquitlam — then come back here to dig into the financing mechanics. Browse current Tri-Cities listings →
Let’s start with the fundamental difference. Porting your mortgage is about your interest rate and your lender relationship. Bridge financing is about timing and cash flow. You may end up using one, the other, or both at the same time depending on how your sale and purchase dates align.
What Does Porting a Mortgage Mean?
Porting means transferring your existing mortgage — including its interest rate, remaining term, and conditions — from your current home to your new one. This becomes attractive when your current rate is lower than what lenders are offering today. Rather than breaking your mortgage, paying a prepayment penalty, and taking out a brand-new loan at a higher rate, you carry (or “port”) the existing product to the new property.
Most lenders in Canada allow porting, but the rules vary significantly. Generally, you need to be purchasing a new property within a specific window — often 30 to 120 days — of selling your current home. Your new property also needs to meet the lender’s approval criteria, just like any new mortgage application.
The complication arises when your new home costs more than your old one. In that case, you need to borrow additional funds on top of what you’re porting. Lenders handle this through a “blend-and-extend” arrangement: the ported portion keeps its original rate, and the top-up amount is issued at the current market rate. The lender then blends the two rates together into one blended rate and typically requires you to extend your term to match. Whether that blended rate is favorable depends on the size of the top-up versus the ported balance and the spread between your old rate and today’s rates. Run the numbers using the mortgage calculator to model different scenarios before assuming porting is always the better choice.
What Is Bridge Financing?
Bridge financing (also called a bridge loan) is a short-term loan that literally bridges the gap between two closing dates. It applies when your purchase completes before your sale closes — meaning you temporarily own two properties and need funds to cover your down payment on the new home before the proceeds from your old home arrive.
Here is a straightforward example: Your new home closes on the 15th of the month. Your current home doesn’t close until the 30th. You need, say, $200,000 from your sale proceeds to fund the down payment on the new place. A bridge loan lets you access that equity now — on the 15th — secured against your confirmed sale. On the 30th, when your sale closes and the funds come in, the bridge loan is repaid in full.
Bridge loans are typically short in duration (days to 90 days is most common) and carry an interest rate above prime — often prime plus 2% to 4% — plus an administration fee. Because the loan is secured by a firm sale (one with a signed, unconditional contract), lenders view it as relatively low risk. Without a firm sale agreement in place, most institutional lenders will not approve a bridge loan, which is a critical detail to understand before you go unconditional on a purchase.
Can You Port Your Mortgage AND Use Bridge Financing?
Yes — and for many Tri-Cities move-up buyers, this is exactly what happens. If you are porting your mortgage to a new home but the new home’s closing date falls before your current home’s closing date, you may need a bridge loan to cover the equity gap during that window. The bridge loan is repaid when your existing home closes, and the ported mortgage continues on the new property. These two strategies are not mutually exclusive; they operate on different layers of your transaction.
When Should You Break Your Mortgage Instead?
Sometimes neither porting nor bridging is the right move. If you’re early in your mortgage term and your current rate is already close to or above today’s rates, breaking the mortgage and taking a fresh product may pencil out better — especially if the prepayment penalty is modest. Fixed-rate mortgage penalties in Canada are calculated as the greater of three months’ interest or the Interest Rate Differential (IRD), and IRD can be substantial. Variable-rate penalties are typically just three months’ interest and are usually much lower. A mortgage broker can calculate your exact penalty and model the break-even timeline so you know whether it pays to port or break.
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Key takeaways
Not all mortgages are portable, and portability is granted at the lender’s discretion. Even if your mortgage documents say it’s portable, the lender still needs to approve the new property and re-qualify you under current stress test rules. If your financial situation has changed since you took out your mortgage — income, employment type, or debt load — you may not qualify to port even if the rate would be advantageous. Always confirm portability eligibility with your lender or broker before you structure your offer dates around it.
One of the most common misunderstandings among first-time move-up buyers in the Tri-Cities is assuming they can access a bridge loan while their home is still listed or conditionally sold. Virtually every institutional lender (banks, credit unions, monoline lenders) requires a fully executed, unconditional purchase agreement on your existing home before they will advance bridge funds. If your home hasn’t sold yet, you are not getting a bridge loan from a mainstream lender. This is why sequencing your sale and purchase carefully — ideally selling first, or at minimum going unconditional on your sale before removing conditions on your purchase — is so important. Talk through your sequencing strategy with both your REALTOR® and your broker before you start shopping.
When you port and need a top-up, the blended rate your lender offers may look attractive at first glance, but the devil is in the details. Lenders calculate the blend differently — some use a weighted average of the two balances, others use their own proprietary formula that weights the new money more heavily. The term extension can also lock you in longer than you’d like. Before accepting a blend-and-extend, ask your broker to compare it against simply breaking the existing mortgage, paying the penalty, and taking a single new mortgage at today’s best rate. Sometimes the clean break is cheaper over the remaining term, particularly if the penalty is low and market rates have moved in your favour.
In active Tri-Cities markets — whether you’re buying in Coquitlam, Port Moody, or Port Coquitlam — you don’t always get to choose your ideal closing dates. Sellers and buyers on the other side have their own needs. That said, you and your REALTOR® should try to negotiate closing dates that minimize your bridge financing window (and therefore your bridge loan interest costs) and that align with your lender’s porting window. A five-day bridge costs very little. A 60-day bridge on a large balance can add up to thousands of dollars in interest. Knowing the bridge financing rates your lender charges before you finalize dates gives you real negotiating context. For a full picture of how closing date strategy fits into the move-up process, see the Move-Up Buyer Guide.
Frequently asked questions
Common questions answered
What is the difference between bridge financing and porting a mortgage?
Porting a mortgage means transferring your existing mortgage rate and terms to a new property when you move. Bridge financing is a short-term loan that covers the gap when you need to complete your purchase before your current home’s sale proceeds arrive. They solve different problems: porting is about keeping a favourable interest rate, while bridge financing is about managing a timing mismatch between two closing dates. Some move-up buyers use both strategies in the same transaction.
Can I port my mortgage if I need to borrow more money for a more expensive home?
Yes. When you port your mortgage but need additional funds for a higher-priced home, your lender typically offers a blend-and-extend arrangement. The ported portion keeps its original rate, and the new top-up amount is issued at the current market rate. The lender blends the two rates into a single rate and extends your mortgage term accordingly. Whether this is the best option depends on the size of the top-up, the spread between your old and new rates, and your lender’s specific blending formula. Use a mortgage calculator to model the numbers and ask your broker to compare the blended option against breaking and refinancing entirely.
How much does bridge financing cost in BC?
Bridge financing in BC typically carries an interest rate of prime plus 2% to 4%, charged daily on the outstanding loan amount, plus a one-time administration or setup fee that varies by lender (commonly $200 to $500 or more). Because bridge loans are short-term — usually a few days to 90 days — the total interest cost is often modest for a short bridge window. However, if your closing gap stretches to 60 or 90 days and the loan amount is large, the cost can become significant. Always ask your mortgage broker for the exact rate and fee structure before finalizing your closing dates.
What happens if my home doesn’t sell before I need to close on my new property?
If you have not sold your current home — or if your sale is still conditional — most institutional lenders will not approve bridge financing, because bridge loans require a firm, unconditional sale agreement as security. Without that, you could be required to close on your new home using other liquid assets or face defaulting on the purchase contract. This is one of the most serious financial risks in a move-up transaction. To manage this risk, many buyers in the Tri-Cities choose to sell first before going unconditional on a purchase, or they include a subject-to-sale condition on their purchase offer when market conditions allow. Discuss sequencing and risk management with your REALTOR® and broker before making any offers.
Is it better to port my mortgage or break it and get a new one?
It depends on three factors: your current rate versus today’s market rate, the size of your prepayment penalty, and how much additional borrowing you need. If your rate is significantly below current market rates and your penalty is high, porting typically makes financial sense. If your penalty is low (common with variable-rate mortgages, which usually carry a three-month interest penalty), or if today’s rates are competitive with your existing rate, breaking the mortgage and taking a fresh product may cost less over the remaining term. A licensed mortgage broker can calculate your exact penalty, model both scenarios, and show you the break-even point — that analysis should happen before you structure any offer. For more on navigating the full move-up process in Coquitlam and the Tri-Cities, visit the Move-Up Buyer Guide.
Sebastian Czarkowski
REALTOR® · Royal LePage Elite West · Coquitlam, BC
Questions about buying or selling in the Tri-Cities? Reach out directly.
For educational purposes only. Not intended as financial or legal advice.
Sebastian Czarkowski, REALTOR® | Royal LePage Elite West | sebastianrealestate.ca