How to Refinance a Mortgage in Toronto

Refinancing means breaking your existing mortgage and replacing it with a new, usually larger one — taking the difference in cash. It is not a renewal, it is not a top-up, and it is not free. Done for the right reason it is one of the cheapest money there is. Done for the wrong one it quietly turns a short debt into a 25-year one.

Three things decide whether it makes sense: the ceiling, the requalification, and the penalty.

The short answer

• You can refinance to a maximum of 80% of your home's value. There is no insured option above that on a refinance.
• You must requalify— at the stress-test rate, not your contract rate.
• Breaking mid-term triggers a penalty, and on a fixed mortgage it can be large.
• At Toronto's $1,081,375 average, the 80% ceiling is $865,100 of total mortgage debt — your accessible equity is that minus what you currently owe.

That average is the same figure we publish on our mortgage broker in Toronto page, from the same inputs.

The 80% ceiling, in Toronto numbers

Take the average Toronto home at $1,081,375. Eighty per cent of that is $865,100. That is the most a lender will let you owe against it after a refinance — full stop, regardless of how good your income is.

So the arithmetic is simply: $865,100 minus your current balance = what you can actually take out, before costs. Owe $500,000 and there's meaningful room. Owe $800,000 and there is almost none, whatever the home is "worth" in your head.

The value that counts is the appraised value, not your estimate or a neighbour's sale price. With the City of Toronto average down 4.7% year over year (the wider GTA average $1,058,658, down 3.9%), that's worth confirming rather than assuming. We won't tell you where values go next; nobody credible will.

You have to requalify

This is the step people forget. A refinance is a new mortgage, so a federally regulated lender tests you again at the stress-test rate — the greater of contract + 2% or 5.25%. At a representative 5.04% five-year fixed, that's 7.04%.

On an $865,100 mortgage, the qualifying payment at 7.04% is about $6,081 a month, and it has to fit inside roughly 39% GDS and 44% TDS. If your income has dropped, your hours changed, or you've become self-employed since you last qualified, this is where the file gets hard — see the stress test guide and the GDS & TDS guide.

Not every lender is federally regulated. Some credit unions qualify on the contract rate instead, which can materially change the maximum. Which lenders those are, and whether one fits your file, genuinely varies — it's the part worth a broker.

The penalty usually decides it

Break a mortgage mid-term and you pay a prepayment penalty. Broadly:

• Variable-rate mortgages typically charge three months' interest — usually modest.
• Fixed-rate mortgages charge the greater of three months' interest or the interest rate differential (IRD) — and IRD can run into many thousands.

The important, under-reported part: lenders calculate IRD differently. The comparison rate they use, and whether posted or discounted rates enter the formula, varies by lender and by contract. Two mortgages at the same rate and balance can produce very different penalties. This is why we won't print a number here — get your actual figure from your lender in writing, and sanity-check the shape of it on our prepayment penalty calculator.

If your renewal is within a few months, wait. At renewal you can restructure with no penalty at all. Refinancing in month 55 of 60 to save a fraction of a point is a bad trade, and we will tell you so. Our renewal guide covers that path.

Refinance, HELOC, or second mortgage?

• Refinance — best when you want a lump sum and a single, lowest-cost payment. Up to 80% LTV. Penalty applies mid-term.
• HELOC — best when you want flexible, revolving access. A standalone home equity line of credit is capped at 65% LTV (80% combined with your mortgage), and the rate is variable.
• Second mortgage — best when the first mortgage carries a rate or penalty you don't want to touch. A second mortgage sits behind the first and is priced for that risk.

If the penalty on your first is punishing, a second can be cheaper overall even at a higher rate. That comparison is arithmetic, not opinion.

The step-by-step

1. Get your penalty quote in writing from your current lender. Nothing else matters until you have it.
2. Establish the value honestly. The appraisal governs.
3. Do the 80% arithmetic: value × 0.80 − balance = your ceiling, before costs.
4. Check you requalify at the stress rate before you plan around the money.
5. Count all the costs — penalty, legal, appraisal, discharge, title.
6. Compare against the alternatives above, then look at current pricing on our rates page and, if you're taking a new term, fixed vs variable.

When it's the wrong answer

Refinancing to consolidate debt is often excellent — the debt consolidation math can be dramatic, and a consolidation mortgage is a real fix. But it only works if the habit that created the balances stops. Clearing cards and refilling them leaves you with the cards and a bigger mortgage, secured by your house.

It's also the wrong answer when the penalty exceeds the saving, when your renewal is close, or when the spend is a want you'd never take a 25-year loan for if it were phrased that way.

The bottom line

Value × 80%, minus what you owe, minus the penalty, if you requalify at 7.04%. That's the whole test. Everything else is detail.

We'll run those numbers on your file and tell you plainly when the answer is "don't." Explore refinancing in Toronto, read up on how refinancing works, or talk to us.

Figures: City of Toronto average selling price, TRREB, June 2026 ($1,081,375 across 2,443 sales, down 4.7% year over year); GTA average $1,058,658, down 3.9%. The 80% LTV example and the $6,081 qualifying payment assume a 25-year amortization at a representative 5.04% five-year fixed, qualified at the federal stress-test rate (the greater of contract + 2% or 5.25%). Illustrative only — your appraised value, balance, income, debts and rate will change these numbers. Prepayment penalties, IRD calculation methods, appraisal requirements and LTV treatment vary by lender and by contract; get your penalty figure in writing from your own lender. General information, not mortgage advice for your specific situation.