Is it worth breaking my mortgage to get a lower rate in Canada?

It depends on three numbers: your penalty, the monthly savings from the lower rate, and how long you plan to stay in the home. Divide your penalty by your monthly savings to get the break-even month. If you will still own the home past that month, breaking likely makes sense mathematically. If you might move or renew before break-even, it probably does not.

How much do rates need to drop for breaking a mortgage to be worth it?

For a big bank fixed mortgage with 2–3 years remaining, rates typically need to drop 1.5–2.5% from your current rate to justify the IRD penalty. For a monoline lender with a smaller penalty, even a 0.5–0.75% rate drop can break even within 12–18 months. Each situation requires its own calculation.

What is the break-even calculation for breaking a mortgage?

Break-even months = Total penalty ÷ Monthly payment savings. Monthly savings = (Old rate − New rate) × Outstanding balance ÷ 12. If you will own the home for more than the break-even number of months, breaking makes mathematical sense (ignoring the time value of money). Add refinancing costs (legal fees, appraisal) to the penalty in your calculation for full accuracy.

Can I break my mortgage if I am selling my house?

Yes. When you sell, your mortgage must be either paid out (penalty applies), ported to your new property (no penalty if eligible), or assumed by the buyer (rare). Most sellers pay the penalty at closing. Get a formal penalty quote from your lender when you list, since penalties can change as rates move.

Does breaking a mortgage affect your credit score in Canada?

No. Paying out a mortgage — even early — is not a negative event on your credit report. There is no credit score impact for breaking and refinancing a mortgage, as long as you do not miss payments in the process.

When to Break Your Mortgage in Canada: The Break-Even Calculation (2026)

Why People Break Their Mortgage

Most Canadians break their mortgage for one of three reasons:

Reason	Description
Rate drop	Current market rates have fallen significantly below your locked-in rate
Life change	Divorce, death, job relocation, or selling the home
Access equity	Refinancing to pull out equity (renovation, investment, debt consolidation)

This guide focuses on the rate drop scenario — where the question is whether the interest savings justify the penalty.

The Break-Even Calculation

Step 1 — Get Your Penalty Quote

Call your lender or log in online for a formal penalty amount. Do not estimate — the actual figure depends on current posted rates and your specific contract.

Example setup:

Outstanding balance: $480,000
Your current rate: 5.24%
New rate available: 4.44%
Remaining term: 3 years
Written penalty quote: $12,800

Step 2 — Calculate Monthly Savings

Monthly savings = (Current rate − New rate) × Balance ÷ 12

$480,000 × (5.24% − 4.44%) ÷ 12 = $480,000 × 0.80% ÷ 12 = $320/month

Step 3 — Calculate Break-Even Months

Break-even = Penalty ÷ Monthly savings

$12,800 ÷ $320 = 40 months (3.3 years)

Step 4 — Add Refinancing Costs

Breaking and re-signing is not free. Add:

Cost	Typical Range
Legal/notary fees	$1,000–$1,500
Appraisal	$300–$500
Discharge registration fee	$100–$300
New mortgage setup fee (some lenders)	$0–$750
Total	$1,400–$3,050

Revised total cost: $12,800 + $1,800 (estimated) = $14,600

Revised break-even: $14,600 ÷ $320 = 45.6 months (3.8 years)

Step 5 — Compare to Your Remaining Plans

Scenario	Decision
You plan to own for 5+ more years	Breaking likely makes sense
You plan to own for ~break-even period	Marginal — rate risk matters
You plan to sell or renew in < break-even	Breaking does not make sense

Real-World Break-Even Table

How much rates need to drop, and how long until you break even — based on $480,000 balance, 3 years remaining, big bank IRD penalty of ~$13,000, and added costs of $1,800.

Rate Drop	Monthly Savings	Break-Even (months)
0.25%	$100	148 months (12+ yrs)
0.50%	$200	74 months (6.2 yrs)
0.75%	$300	49 months (4.1 yrs)
1.00%	$400	37 months (3.1 yrs)
1.50%	$600	25 months (2.1 yrs)
2.00%	$800	18 months (1.5 yrs)

Key takeaway: For a big bank fixed mortgage, a rate drop below 1% almost never justifies the penalty unless you have a very long remaining ownership horizon.

Monoline vs Big Bank: The Penalty Gap Matters

The same analysis with a monoline lender penalty of $4,500 (instead of $14,800 total) changes dramatically:

Rate Drop	Monthly Savings	Break-Even (big bank)	Break-Even (monoline)
0.50%	$200	74 months	16 months
0.75%	$300	49 months	11 months
1.00%	$400	37 months	8 months
1.50%	$600	25 months	5 months

If you’re at a monoline, even a modest rate drop can make breaking worthwhile within 1–2 years.

Timing Your Break

Interest Rate Environment Matters

The best time to break a fixed mortgage is when:

Current rates are significantly lower than your rate
You have 2+ years remaining on your term (enough savings time)
Your remaining term is short enough that the comparison rate in the IRD calculation is close to your rate (reducing the penalty)

IRD penalties are highest when you break early in a falling-rate environment — because the comparison rate is much lower than your rate. By late in your term, the penalty often converges toward 3 months’ interest.

Prepayment Before Breaking

If you decide to break, use your annual prepayment privilege before calling to discharge. This reduces the balance used in the penalty calculation.

Alternatives to Breaking

Before committing to breaking, consider:

Alternative	When It Works
Blend and extend	Your lender blends your current rate with market rate for a new term — no penalty, but rate won’t drop as far
Port your mortgage	If you’re moving, port the mortgage to avoid the penalty entirely
Wait for renewal	If break-even exceeds remaining term, simply renew at next maturity date
Use prepayment privileges	If the goal is debt reduction, pay down within your privilege limit to reduce balance without breaking

Tax Note for Rental Property Owners

If your mortgage is on a rental property, the penalty paid to break the mortgage is a deductible financing expense. You amortize it over the lesser of the remaining term or 5 years. This changes the after-tax cost significantly:

Penalty: $12,800
Marginal rate: 43%
After-tax cost: $12,800 × (1 − 43%) = $7,296

Always run the break-even on the after-tax penalty for investment properties.