Mortgage Renewal Calculator (Canada)
Compare your renewal offer against a switch to a new lender and see the real cost difference after rate changes, penalties, discharge fees, appraisal costs, legal costs, cashback clawbacks, and other switching friction. This page is built to answer the decision question clearly: is it smarter to accept the bank’s offer, negotiate harder, or move the mortgage elsewhere?
Inputs
Current mortgage
Option A — stay with current lender
Option B — switch lender
Penalty and hidden costs
Results
Switching saves real money — not just a better rate.
After penalties, fees, and incentives are included, switching lenders still comes out ahead. This is a real net win, not a cosmetic rate improvement.
What actually drives this result
The lower rate creates enough interest savings to fully absorb switching costs — and still leave a meaningful margin.
Where people get this wrong
Most borrowers focus on rate difference and ignore recovery time. If break-even drifts too far, the “win” disappears.
Which option actually costs less
This is the decision chart: the lower bar is the better real-world outcome after rate savings and switching friction are both counted.
Does the lower rate survive the friction?
If switching friction is too close to the interest savings, the switch is weaker than it looks — even with a better rate.
Forensic breakdown
This section shows whether the lower rate creates a real advantage or only looks good before switching friction is counted.
| Component | Amount | Decision note |
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How to use
- Enter the expected mortgage balance at renewal, the remaining amortization, and the new term you want to compare.
- Add your current lender’s renewal offer and a real competing lender rate.
- Include all switching friction that could distort the decision: penalty, discharge fee, legal cost, appraisal cost, and any other real fee.
- Use the result block first. It shows whether the lower rate actually wins after switching friction is included.
- Use the breakdown table after that to see whether the savings are meaningful or only look good at first glance.
Related pages that often help with this decision include Mortgage Refinance Calculator (Canada), Mortgage Payment (Canada), and Extra Mortgage Payments & Lump Sum Calculator (Canada).
What your result actually means
If switching wins clearly
That usually means the lower rate is strong enough to recover the switching friction fast enough that the move creates real net value, not just a nicer headline rate.
If staying still wins
That does not automatically mean your bank is generous. It often means the rate gap is too small, the term is too short, or the switching friction is too heavy to justify the move.
A small rate difference can sound meaningful during renewal conversations, but a renewal decision should be judged like a business decision: total cost, recovery time, and execution friction all matter.
How to make a decision
Do not decide based on rate alone. Decide based on whether the lower rate creates enough real savings after penalty and switching friction to justify the move. A strong switch usually has three things going for it: a meaningful rate gap, manageable switching cost, and enough term length left for the savings to compound.
When switching is usually worth serious effort
- The competing rate is meaningfully lower, not just a token discount.
- The switching cost layer is modest or partly offset by lender cashback.
- The break-even period is short relative to the term you are choosing.
When staying is often the smarter move
- The rate gap is too small to matter after fees.
- The switch only barely wins and leaves almost no margin for error.
- The term is short enough that you may not recover the switching friction cleanly.
Real scenarios
Scenario 1: Lower rate, fake win
A borrower sees a new lender offering a noticeably lower rate and assumes the decision is obvious. But once discharge fees, legal work, and a clawback of an earlier incentive are counted, the switch advantage nearly disappears. The rate is lower, but the decision is not stronger.
Scenario 2: Moderate rate gap, real win
Another borrower gets a realistic competing rate that is only modestly lower, but the mortgage balance is still large and the switch cost is relatively light. In that case, even a moderate rate improvement can create meaningful savings over a 5-year term.
Scenario 3: The bank offer is weak, but convenience still wins
Sometimes the switch technically saves money, but not enough to justify paperwork, timing risk, or execution hassle. A good calculator should make that visible too. Not every mathematical win is a practical win.
Common mistakes
- Comparing rates without comparing total term cost.
- Ignoring discharge, legal, appraisal, or setup friction.
- Using an unrealistic market rate that is not actually available to your profile.
- Assuming a lower payment always means the better renewal decision.
- Switching for a tiny win that takes too long to recover.
How the calculation works
The calculator compares two renewal paths over the same term and remaining amortization. First, it estimates the payment and term cost if you stay with the current lender. Then it estimates the payment and term cost if you switch to a new lender at the competing rate.
After that, it applies switching friction such as penalty, discharge fee, legal cost, appraisal cost, and any other user-entered switching cost. Cashback or lender incentive can reduce that friction, but only if it is real and usable.
The page then compares the two total term-cost outcomes and calculates how long it would take for the lower rate to recover the switching friction. That is why this page is more useful than a basic “rate difference” comparison: it turns the rate conversation into a real net-cost decision.
Mortgage renewal calculator Canada: should you accept your bank’s offer or switch lenders?
Mortgage renewal is one of the easiest moments to lose money quietly. Many borrowers see a renewal offer, compare the rate to a headline market rate, and assume the decision is obvious. But renewal decisions are rarely that simple. The real question is not “which rate is lower?” It is “which option costs less after all friction is included?”
That friction matters more than many people think. A lower rate from a new lender may still lose if the mortgage balance is smaller than expected, the term is short, or the switching friction is heavy. On the other hand, a modest rate improvement can create a very real advantage when the remaining balance is still large and the switching costs are manageable.
This is why a proper mortgage renewal calculator should compare staying versus switching as a decision, not as a teaser-rate exercise. Borrowers need to see the true cost difference, the break-even period, and whether the advantage is strong enough to matter in real life.
The strongest renewal choice is usually the one that remains clearly better even after penalty, legal costs, discharge fees, and execution hassle are counted. That is what this page is designed to reveal.
FAQ
No. The lower rate only wins if it offsets all switching friction and still creates meaningful net savings.
Common ones include prepayment penalty, discharge fee, legal cost, appraisal/setup cost, and any lost incentive or cashback clawback.
A meaningful rate gap, manageable switching friction, and a short enough break-even period relative to the term usually make the switch more compelling.
That is often not a strong practical win. Small mathematical savings can disappear fast if the quote changes, the friction is underestimated, or the execution becomes messy.