The five year Government of Canada bond yield has climbed to roughly 3.20 percent in early August, its highest level in several weeks, after Iranian state media floated further restrictions on Strait of Hormuz transit before talks to reopen the strait resumed. That single yield sits at the centre of a much larger number: roughly 33 percent of Canadian mortgage holders are expected to face higher monthly payments by the end of 2026, and about 75 percent of those facing an increase hold a five year fixed rate mortgage.
Fixed mortgage pricing does not follow the Bank of Canada's overnight rate. It follows the five year GoC yield, and that yield has not moved in a straight line down even as the overnight rate has held at 2.25 percent since October. For clients renewing a five year fixed mortgage taken out in the 2020 to 2021 window, the gap between what they are paying now and what they will pay at renewal is a specific, calculable number, not a general sense that rates are higher.
What the Renewal Wall Actually Costs by Account Type
For borrowers renewing in 2026 with a five year fixed rate mortgage, Ratehub.ca's rate table showed the best available insured five year fixed near 3.94 percent as of July, with uninsured offers from major banks running closer to 4.24 percent. Against a mortgage originated when five year fixed rates sat well below 3 percent, the average payment increase for this group is projected near 20 percent. That is a cash flow change large enough to affect how much room is left for ongoing RRSP or TFSA contributions in the same household budget.
Variable rate holders are in a different position. With the Bank of Canada's overnight rate unchanged since October and prime sitting at 4.45 percent, the best five year variable offers run closer to 3.45 percent, meaningfully below fixed pricing. A client who took a variable rate mortgage after the 2022 to 2023 hiking cycle has already absorbed most of the payment shock and is not facing a comparable renewal cliff.
The Planning Bridge: What to Model Before the Renewal Date
The specific action here is a pre renewal cash flow model, not a general conversation about rates being higher. For a client renewing a five year fixed mortgage, the question is whether a lump sum paydown funded from non registered savings or a planned TFSA withdrawal, applied before the renewal date, reduces the new payment enough to justify the opportunity cost of pulling that capital out of the market. That comparison only works with the client's actual renewal date, outstanding balance and current TFSA or non registered account composition in front of you, not with a general rate commentary.
For clients using a prescribed rate loan strategy for income splitting, the picture is more stable. The Canada Revenue Agency has confirmed the prescribed rate will hold at 3 percent for the fourth quarter of 2026, the sixth consecutive quarter at that level. A loan already in place at 3 percent stays at that rate for its duration provided interest is paid within 30 days of year end, regardless of where the five year GoC yield moves next. That makes the prescribed rate loan one of the few pieces of a household's borrowing picture that is not affected by the same renewal wall pressure.
Rate benchmarks as reported in early to mid August 2026. The five year GoC yield and best available mortgage rates move independently of the Bank of Canada's overnight rate. Source: Bank of Canada, Ratehub.ca, nesto.ca.
Why the Spread Itself Is the Client Conversation
The 199 basis point spread between the overnight rate and the best available five year fixed rate is the number that explains why a client can reasonably ask why their payment is rising when they keep hearing the Bank of Canada has not moved. It has not, and that is exactly the point. The overnight rate governs variable pricing and the prime rate. It does not set the five year GoC yield, which continues to carry a risk premium tied to the Strait of Hormuz situation and has not fully round tripped even as headline inflation has cooled. Naming that mechanism directly, with the client's own renewal date attached to it, is what turns a rate headline into a plan.