Mortgage Refinance Break-Even in Canada: Penalty, Costs, and the Month It Pays Off

The break-even month on a mortgage refinance is the month in which the money you save on your new payments finally equals everything you spent to get out of the old mortgage and into the new one. You find it in three steps: get the prepayment charge in writing, add the legal and appraisal costs, then divide that total by your monthly payment reduction. The result is a number of months — and a refinance that breaks even in month 40 of a 60-month term is a very different decision from one that breaks even in month 9.

Each step depends on the one before it, so the order matters.

Step 1: Get the prepayment charge in writing, before you shop rates

Most people start by comparing mortgage finance rates. That is backwards. The cost of leaving your current fixed mortgage loan is set the moment you ask your lender for it, and it can easily be larger than a year of savings. Until you know that number, you cannot tell whether a lower rate is worth anything at all.

Lenders use one of two methods to calculate the prepayment charge, and your mortgage documents — not a website calculator — say which one applies to you. The Financial Consumer Agency of Canada publishes plain-language material on mortgage costs and prepayment, and it is worth reading alongside your own contract.

The general shape of an interest rate differential is (your rate − the lender's comparable current rate) × balance × time remaining. That is why the penalty spikes when rates have fallen since you signed: the lender is being repaid for interest it expected to earn and no longer will. On a fixed-rate mortgage the penalty is usually highest in the middle of the term and shrinks as maturity approaches, while on a variable-rate mortgage it barely moves at all because only three months of interest is involved.

Two details are worth chasing. Canadian fixed-rate mortgages are compounded semi-annually by law, so the arithmetic behind an IRD quote is not the simple monthly compounding most people assume. And the phrase "comparable rate" is doing a lot of work — how a lender defines it changes the answer materially, so ask for the calculation shown rather than a single figure.

Ask for the payout statement in writing, and note the date the quote expires. A prepayment figure is typically only held for a short window, so it is not something you can sit on for weeks while you collect mortgage loan quotes elsewhere.

Step 2: Add the legal and appraisal costs

The prepayment charge is only the largest line. A refinance is a new mortgage, and a new mortgage has its own one-off costs.

• Discharge or payout fee charged by the outgoing lender to prepare the payout statement and release the charge.
• Legal or notary fees to discharge the old charge and register the new one. These vary widely by province and by property type.
• Appraisal fee, if the incoming lender requires one.
• Title search and land registration costs at the provincial registry office.
• Administration or processing fee charged by the new lender.
• A second prepayment charge if you also have a secured line of credit or second charge that has to be paid out and discharged.

The appraisal matters far more than its fee suggests. At federally regulated lenders, home equity lines of credit are generally limited to 65% of appraised property value, with total secured lending against a home usually capped at 80%, as the Financial Consumer Agency of Canada outlines. If the appraisal comes in lower than you assumed, the loan-to-value you planned for may not hold — and the deal can fail even though the arithmetic on paper worked perfectly.

Step 3: Work out the real monthly saving

Now the third number: what the new payment actually saves you each month. This is where most comparisons quietly go wrong, because people compare the new rate to the old rate instead of comparing payments and terms. A lower rate does not automatically mean a much lower payment.

1. Use the balance you will genuinely refinance — the old balance plus the prepayment charge plus closing costs, unless you are paying those in cash.
2. Ask each lender for a payment schedule over your remaining amortisation, not a fresh one. Re-amortising is a legitimate choice, but it lowers the monthly saving and pushes the break-even month further out.
3. Compare like with like: same balance, same amortisation, same payment frequency.
4. Note whether you are being quoted a fixed mortgage loan or a variable one, because that changes both the payment and your future prepayment exposure.

Collecting several mortgage loan quotes on identical terms is the only way to see your true monthly saving. A quote that quietly extends the amortisation is not a comparison — it is a different mortgage.

Step 4: Find the break-even month

The formula is short:

Break-even months = total switching costs ÷ monthly payment reduction

Total switching costs are the prepayment charge plus every legal, appraisal, discharge and registration cost from Step 2. The monthly payment reduction is the figure from Step 3. Divide one by the other and you have a month number.

Then read the answer honestly. If the break-even month falls inside your remaining term, the refinance puts you ahead before the term ends. If it falls after, you are betting that you will still be in this mortgage at that point — and if you sell or refinance again before you get there, you may pay another prepayment charge first.

What can still derail the calculation

Three things move the numbers after you have done the work.

• You have to requalify. A refinance is a new mortgage application. At federally regulated lenders it is underwritten under OSFI Guideline B-20, which means a total debt service ratio ceiling of about 44% and a qualifying stress-test rate above the contract rate. If your income, debts or property value have changed since the original mortgage, you may not qualify for the amount the arithmetic assumes.
• The penalty is recalculated at payout. The charge often moves with the balance and with rates on the day you actually pay out, which may be later than the day you were quoted.
• You may pay twice. If you break the new mortgage early to sell or refinance again, that is a second prepayment charge — before the first break-even was ever reached.

None of this is financial, legal or tax advice for your situation. Whether a refinance is worth doing depends on your income, your other debts, your plans for the property and how long you intend to keep it. Those are questions for a licensed mortgage professional, and for significant decisions regulated professional advice is the right place to get them answered.

Before you request any quotes

1. Request the payout statement in writing, with the prepayment charge shown and its expiry date.
2. Ask the incoming lender whether an appraisal is required, and who pays for it.
3. Get a legal fee quote from a lawyer or notary who does mortgage work in your province.
4. Ask every lender for a payment schedule at the same amortisation and frequency.
5. Add the costs, divide by the monthly saving, and write the break-even month down.

If a fee or penalty looks wrong, note that complaints about federally regulated financial institutions go to the Financial Consumer Agency of Canada, while provinces license and supervise most other lenders and each has a consumer protection office.

loanwolf.ca is a matching and comparison service, not a lender. We do not make loans, set rates, or make credit decisions; we connect you with lenders and licensed brokers so you can compare options. The lowest mortgage finance rates advertised anywhere are available only to the most qualified applicants — strong credit, documented income, low loan-to-value and a property that appraises cleanly — and a quoted rate is not an offer or an approval. Qualification is always a separate question, and only the lender decides it.