Canada Open vs. Closed Mortgage Penalty Calculator 2026

Compare penalties: Open (no penalty) vs. Closed (3 months' interest or IRD)

Open vs. Closed 2026 Canada

1 Mortgage Details

$
The remaining principal balance on your mortgage.
Please enter a valid mortgage balance (greater than 0).
%
The rate on your closed mortgage (lower rate).
Please enter a valid interest rate.
%
The rate you would pay on an open mortgage (typically 1-3% higher).
Please enter a valid interest rate.
Variable closed: 3 months' interest. Fixed closed: greater of 3 months' interest or IRD.
Number of months left until your term ends.
Please enter months between 1 and 120.
%
Lender's current rate for a term matching your remaining months. If current rates are higher than your rate, IRD = 0.
βš–οΈ OPEN vs. CLOSED MORTGAGE COMPARISON
πŸ”“ Open Mortgage
0.00%
Prepayment Penalty$0.00
Interest Cost$0.00
Total: $0.00
πŸ”’ Closed Mortgage
0.00%
Prepayment Penalty$0.00
Interest Cost$0.00
Total: $0.00
ℹ️
Enter your mortgage details above to see the comparison. The calculator will show the total cost of breaking each mortgage type, including penalties and interest.
πŸ“Š Open vs. Closed Mortgage Comparisonβ–Ό
FeatureOpen MortgageClosed Mortgage
Prepayment Penalty$0 (none)3 months' interest or IRD
Interest RateHigher (+1% to +3%)Lower (best rates)
Prepay Any Amountβœ… Yes, anytimeLimited to annual privileges
Pay Off Entire Balanceβœ… Yes, anytime❌ Only at term end (else penalty)
Refinance / Switch Lendersβœ… No penalty❌ Penalty applies
Convert to Other Typeβœ… Open β†’ Closed allowed❌ Cannot convert without penalty
Best ForShort-term, uncertain plansLong-term, stable plans
πŸ’° Closed Mortgage Penalty Formulasβ–Ό

Variable Rate Closed Mortgage

Penalty is always 3 months' interest on the outstanding balance.

Penalty = (Rate / 12) Γ— Balance Γ— 3

Example: $400,000 balance at 5.50%

= (5.50% / 12) Γ— $400,000 Γ— 3 = $5,500

Fixed Rate Closed Mortgage

Penalty is the GREATER of 3 months' interest or the Interest Rate Differential (IRD).

3 Months' Interest = (Rate / 12) Γ— Balance Γ— 3 IRD = Balance Γ— (YourRate βˆ’ CurrentRate) Γ— (Months / 12) Penalty = MAX(3 Months' Interest, IRD)

Example: $400,000 balance at 5.50%, current rate 4.00%, 24 months remaining

3 Months' Interest = $5,500 IRD = $400,000 Γ— 1.50% Γ— 2 = $12,000 Penalty = MAX($5,500, $12,000) = $12,000

When Current Rates Are Higher

If the current rate is HIGHER than your rate, the IRD becomes negative and is treated as $0. In that case, only the 3 months' interest penalty applies.

🎯 When to Choose Open vs. Closedβ–Ό

Choose an OPEN Mortgage If:

  • You plan to sell your home within the next 12 months
  • You expect to break the mortgage or refinance soon
  • You need maximum flexibility for lump-sum payments
  • You're uncertain about your long-term plans
  • You're receiving a large windfall and want to pay off the balance

Choose a CLOSED Mortgage If:

  • You plan to keep the mortgage for the full term
  • You want the lowest possible interest rate
  • You don't need to break the contract early
  • You can work within the annual prepayment privileges
  • You're refinancing from another closed mortgage

The Trade-Off

Open mortgages have no penalty but charge higher interest rates (typically 1-3% more). Closed mortgages offer the lowest rates but have a prepayment penalty if broken early. The right choice depends on how long you plan to keep the mortgage and whether you're likely to break it.

Share this tool with friends

ℹ️ Disclaimer: This calculator provides an estimate only. Actual prepayment penalties, interest costs, and rates are determined by your lender. For the most accurate information, contact your lender or read your mortgage contract carefully. This is not financial advice.

2 Frequently Asked Questions

What is an open mortgage?

An open mortgage allows you to prepay any amount at any time without penalty, including paying off the entire balance. However, open mortgages have higher interest rates (typically 1-3% higher than closed mortgages).

What is a closed mortgage?

A closed mortgage has a fixed term with lower interest rates than open mortgages. You can make prepayments within annual limits (typically 10-20%), but breaking the contract early triggers a prepayment penalty.

How much is the penalty for breaking a closed mortgage?

Variable rate closed: 3 months' interest. Fixed rate closed: greater of 3 months' interest or Interest Rate Differential (IRD).

When should I choose open vs. closed?

Choose open if you plan to sell soon, expect to break the mortgage, or need maximum flexibility. Choose closed if you plan to keep the mortgage for the full term and want the lowest rate.

Can I convert open to closed?

Yes. Most lenders allow you to convert an open mortgage to a closed mortgage at any time without penalty, typically when you lock into a fixed or variable rate.

Why are open mortgage rates higher?

Open mortgages charge higher rates because the lender takes on more risk β€” the borrower can leave or pay off the mortgage at any time without compensating the lender.

3 Official Resources

FCAC β€” Prepayment Penalties
Mortgage Prepayment Penalties

FCAC β€” Breaking Your Mortgage Contract
Breaking Your Mortgage Contract

FCAC β€” Mortgage Calculator
FCAC Mortgage Calculator

Verify all calculations with your lender before making any decisions.

⚠️This tool is for information purpose only. We do not guarantee any claim.
It is made based on data publicaly available on official website of concerned department.

Last Updated: March 2026 | Official Determination Required