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Assumable Mortgages in BC: Can You Take Over the Seller's Rate?
Quick answer: Many Canadian mortgages can be assumed by a buyer, with the lender's approval, keeping the seller's rate and remaining term. It saves money when the seller's rate is lower than today's. You still have to qualify, and you cover any gap between the mortgage and the price with a larger down payment or new money at today's rate.
Would taking over the mortgage save you money?
Enter the seller's mortgage and how much more you need to borrow. The check compares the monthly payment with a brand new mortgage at today's rate.
Monthly saving from assuming
$507
The lender must approve you as if you were applying new, and the assumed mortgage keeps its remaining term. Some lenders add the extra money as a separate portion, others blend the rate.
Assume, port or switch?
| Option | Who uses it | Main benefit |
|---|---|---|
| Assume | A buyer takes over the seller's mortgage | Keeps a low rate; the seller avoids a penalty |
| Port | A seller moves their mortgage to their next home | No penalty, keeps the rate |
| Switch or transfer | An owner moves lenders, usually at renewal | A better rate or terms |
See porting a mortgage, switching lenders at renewal and the mortgage penalty calculator.
For sellers: a selling point
If your mortgage rate is below today's rates, an assumable mortgage can attract buyers and saves you the penalty to break it. Check your mortgage terms and ask your lender for the assumption requirements before you list.
What to check before you assume
- The remaining term: a low rate with only months left may not be worth much.
- Prepayment and portability terms you are taking over.
- Whether the mortgage is a collateral charge with other debts attached.
- The lender's assumption fee and processing time, so it fits your completion date.
Talk to Asim about your mortgage
Call 604‑591‑3590 now, or send your details and Asim will reply within one business day.
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Frequently asked questions
Are mortgages assumable in Canada?
Many are, with the lender's approval. Most fixed and variable mortgages allow a qualified buyer to take over the seller's mortgage, with its rate and remaining term. Some lenders do not allow it, so check the mortgage terms.
Do I have to qualify to assume a mortgage?
Yes. The lender approves the buyer as if it were a new application: income, credit and the stress test. Once approved, the seller is usually released from the mortgage.
What if the mortgage is smaller than I need?
You make up the difference with a larger down payment, or the lender adds new money at today's rate, sometimes as a blended rate. The calculator above shows both payments.
What is the difference between assuming, porting and switching?
Assuming means a buyer takes over the seller's mortgage. Porting means you take your own mortgage to your next home. Switching means moving your mortgage to a new lender, usually at renewal.
Want a lender's view of your numbers? Book an appointment with Asim Ali, ranked #4 in the CMP Top 75 Mortgage Brokers in Canada for 2026, or call 604‑591‑3590.