Refinancing can be a powerful financial tool — or an expensive mistake. This guide covers when it makes financial sense, what it actually costs, and how the process works so you can make an informed decision.
What refinancing actually means
When you refinance, you break your existing mortgage and replace it with a new one. The new mortgage can be:
- Larger — you borrow more against your equity (cash-out refinance)
- At a different rate — you switch to a lower rate to reduce payments
- On different terms — you change your amortization, payment frequency, or term length
- With a different lender — you move to a lender offering better terms
The maximum loan-to-value (LTV) for a refinance in Canada is 80%. No CMHC insurance applies to refinances regardless of your down payment amount on the original purchase.
When refinancing makes financial sense
| Scenario | Why It Works |
|---|---|
| Debt consolidation | Replacing $50K in credit card debt (20%+ interest) with mortgage debt (5–6% interest) saves $7,000+ in annual interest |
| Rates dropped significantly | If current rates are 1.5%+ below your locked rate, the savings over the remaining amortization can exceed the penalty |
| Major renovation | Borrowing through a refinance at 5–6% is cheaper than a personal loan at 8–12% or a credit line at 7–9% |
| Shortening your amortization | Refinancing to a shorter amortization at a lower rate accelerates payoff and reduces total interest |
| Getting out of a bad mortgage | Escaping a restrictive or high-rate mortgage (e.g., private lender) into a better product |
When refinancing does NOT make sense
| Scenario | Why Not |
|---|---|
| Penalty exceeds savings | Run the numbers — if the penalty wipes out the rate savings, wait until renewal |
| You are close to maturity (under 1 year) | Wait and switch at renewal for free |
| Extending amortization for lower payments only | You feel relief now but pay significantly more total interest over the life of the loan |
| Small rate difference (under 0.50%) | The penalty and fees typically exceed the savings unless your balance is very large |
| Using equity for non-essential spending | Turning home equity into cash for vacations or consumer goods erodes your wealth |
The math: when does breaking your mortgage pay off?
Fixed-rate mortgage example
| Detail | Amount |
|---|---|
| Current balance | $400,000 |
| Current rate | 5.89% (5-year fixed) |
| Time remaining in term | 3 years |
| Interest Rate Differential (IRD) penalty | ~$12,000 |
| New rate available | 4.29% (5-year fixed) |
| Monthly payment savings | ~$370/month |
| Savings over new 5-year term | ~$22,200 |
| Net savings after penalty | ~$10,200 |
| Break-even point | ~32 months |
Variable-rate mortgage example
| Detail | Amount |
|---|---|
| Current balance | $400,000 |
| Penalty (3 months interest) | ~$5,000 |
| Rate drop from variable to fixed | 0.75% |
| Monthly payment savings | ~$185/month |
| Savings over remaining 3-year term | ~$6,660 |
| Net savings after penalty | ~$1,660 |
Variable-rate penalties are simpler and smaller — just 3 months of interest. This makes mid-term refinancing more viable for variable-rate holders.
Full cost breakdown
| Cost | Typical Range | Notes |
|---|---|---|
| Prepayment penalty (fixed) | $5,000–$25,000+ | IRD calculation — can be very large at Big 5 banks |
| Prepayment penalty (variable) | $2,000–$6,000 | 3 months interest — predictable |
| Appraisal fee | $300–$500 | Required for most refinances |
| Legal fees | $800–$1,500 | Lawyer handles discharge and re-registration |
| Discharge fee | $200–$350 | Paid to current lender to remove their charge |
| Title insurance | $200–$400 | Usually required by new lender |
| Total (excluding penalty) | $1,500–$2,750 |
Tip: Some lenders offer to absorb legal and appraisal fees on refinances over a certain threshold ($200K+). Always ask.
How to qualify for a refinance
Your new lender will underwrite the refinance as if it were a new mortgage:
| Requirement | Minimum |
|---|---|
| Credit score | 680+ for best rates (600+ for A-lender approval) |
| Gross Debt Service (GDS) ratio | Under 39% |
| Total Debt Service (TDS) ratio | Under 44% |
| Loan-to-value (LTV) | Maximum 80% |
| Income verification | Full documentation (T4, pay stubs, NOA, or T1 General for self-employed) |
| Property appraisal | Market value must support the new loan amount |
Self-employed borrowers: You will need 2 years of T1 Generals and Notices of Assessment. Some lenders offer stated income programs at slightly higher rates.
Step-by-step refinance process
Step 1: Calculate the penalty (before anything else)
Call your current lender and ask: “What is my prepayment penalty as of today?” Get the number in writing. This is the baseline cost that any refinance savings must exceed.
Step 2: Determine your home’s current value
Get a rough estimate from local comparable sales or an online calculator. The formal appraisal comes later, but you need to know whether 80% of your home’s value exceeds your desired new mortgage amount.
Step 3: Shop rates and get pre-approved
Contact a mortgage broker and at least one bank. Provide all income documentation and get a written rate commitment. The broker can access monoline lenders that may offer better refinance rates.
Step 4: Run the break-even analysis
| Calculate | |
|---|---|
| Total penalty + fees | A |
| Monthly savings with new rate | B |
| Break-even point (months) | A ÷ B |
| Remaining time in new term (months) | C |
| Net savings over new term | (B × C) – A |
If the break-even point is under 24 months and you plan to keep the property through the new term, refinancing is likely worthwhile.
Step 5: Apply and provide documentation
Submit your full application. The lender will order an appraisal and verify all income and employment details. Expect 2–4 weeks for approval.
Step 6: Lawyer handles closing
Your lawyer will:
- Receive instructions from the new lender
- Arrange discharge of the old mortgage
- Register the new mortgage on title
- Distribute funds (penalty paid to old lender, any cash-out to you)
Step 7: Closing and first payment
The refinance closes, the old mortgage is paid off plus penalty, and your new payment schedule begins. Any cash-out amount is deposited to your account within a few business days.
Refinance alternatives to consider
| Alternative | Best For | How It Works |
|---|---|---|
| HELOC | Ongoing access to equity | Revolving credit secured by home, no need to break mortgage |
| Blend-and-extend | Getting a lower rate without penalty | Current lender blends your existing rate with today’s rate for a new term |
| Second mortgage | One-time cash need, don’t want to break first mortgage | Higher rate but no penalty on first mortgage |
| Personal line of credit | Smaller amounts ($25K or less) | Unsecured, no impact on mortgage |
| Wait until renewal | Rate savings are marginal | Switch lenders at maturity with zero penalty |