Second Mortgage vs Refinancing in Canada: How to Choose

Short answer: a refinance replaces your existing mortgage with a new, larger one and hands you the difference in cash. A second mortgage leaves your first mortgage in place and registers a second charge on the same property. If your first mortgage carries a rate you would hate to give up, a second mortgage can cost you less in total. If you need a large sum and your current mortgage terms are ordinary, refinancing is usually the simpler and cheaper path.

That is the decision in two sentences. The rest of this guide is the detail that decides which side of it you land on. One thing up front: LoanGoose is a loan matching and comparison service, not a lender. We do not make loans, set rates or make credit decisions, and nothing here is an offer or an approval.

What refinancing actually does

A refinance pays out your existing mortgage and replaces it with a new one, usually for a bigger amount. The difference goes to you as cash. You can also refinance purely to change your rate, your term or your amortization, even when you do not need a dollar.

Because the new loan is a first charge on the property, it tends to be the cheapest secured borrowing available to a homeowner. At federally regulated lenders, a home equity line of credit is generally limited to 65% of appraised property value, with total secured lending usually capped at 80%. Those same ceilings shape how much a refinance can free up. The FCAC — mortgages page explains how borrowing against home equity works.

Expect costs: a discharge fee on the outgoing mortgage, legal and title fees, possibly an appraisal, and a prepayment penalty if you break your current term early. That penalty is the line item that catches people off guard, and it can be large enough to wipe out the benefit of refinancing altogether.

Also remember that federally regulated mortgage lenders generally work to a total debt service ratio ceiling of about 44% and apply a qualifying stress-test rate above the contract rate, as set out in OSFI Guideline B-20. A bigger mortgage payment means re-qualifying at that stressed rate, not the rate you see advertised.

What a second mortgage actually is

A second mortgage is a loan secured by a second charge on your home, behind the first mortgage. The first lender gets paid first if the property is sold or goes into default; the second lender gets what is left. Because that position is riskier, second mortgages generally carry higher rates and fees than first mortgages.

They are often shorter-term — a year or two in many cases — and are frequently used as bridge financing: to cover a renovation, to consolidate higher-cost debt, to handle a sudden expense, or to buy time before a refinance or a sale.

Your first mortgage is untouched. No discharge, no prepayment penalty, no renegotiating a rate you like. You do pay for that convenience, and it shows up in the rate.

Second mortgages are often arranged through alternative or private lenders, which provinces license and supervise. Each province has a consumer protection office, and the FCAC — provincial and territorial regulators page is the place to confirm who oversees a lender where you live.

Second mortgage vs refinancing, side by side

When a refinance is the better call

• You need a large amount and want the lowest available cost of borrowing.
• Your current mortgage rate is not especially good, so replacing it costs you little.
• You want one payment, one lender and one set of paperwork.
• You are near the end of your term, so the prepayment penalty is small or zero.
• You want to reset your amortization to lower the monthly payment.

Refinancing also tends to look more conventional to future lenders, because a single first mortgage is the expected structure on a home.

Canadian fixed-rate mortgages are compounded semi-annually by law, which affects how the math works when you compare a refinance quote to a second mortgage quote. Ask both lenders for the effective annual cost, not just the posted rate.

When a second mortgage is the better call

• You have a first mortgage at a rate you would lose money walking away from.
• You need the money quickly and cannot wait out a full refinance.
• You need a modest amount relative to the equity you have built.
• Your income paperwork is awkward right now — self-employment, a recent job change — and the second lender's underwriting fits better.
• You plan to sell or refinance soon and want a short, contained cost.

The honest downside is stacked payments. You now owe a first mortgage plus a second, and the second is the expensive one. If something goes wrong, the second lender has less room to be patient. Missing payments puts the property at risk, and the first lender's interests come first.

The risks worth saying out loud

Both products turn home equity into debt secured by your home. Neither fixes a cash-flow problem on its own. If the money is going toward consolidating high-cost debt, be honest about whether the spending that created that debt has stopped — otherwise you have simply moved the problem onto your house.

The Criminal Code s. 347 — criminal rate of interest sets the criminal rate at 35% per year, calculated by a defined method that adds up interest and certain charges. That is the outer legal wall, not a target. If a quote starts approaching it, walk.

For smaller, shorter-term needs, payday loans are a separate world. The FCAC — payday loans page notes that they are generally up to $1,500 for a term of 62 days or less, and that where a province operates a licensed payday lending regime, federal rules cap the cost of borrowing at $14 per $100 advanced, with a province free to set a lower cap that applies instead. Quebec does not license payday lending, which effectively prohibits the model there. A second mortgage is not a payday loan, but the comparison is worth making when someone suggests one to bridge a gap.

If your debts are already unmanageable, borrowing against your home may be the wrong tool. Only a licensed insolvency trustee can administer a consumer proposal or a bankruptcy, and trustees are regulated by the Office of the Superintendent of Bankruptcy Canada, which also sets out the timelines: a consumer proposal stays on your credit report for three years after completion, or six years from filing, whichever comes first, and a first bankruptcy stays on your credit report for six years after discharge. That is a conversation for a licensed professional, not a lender's website.

How to decide, step by step

1. Write down the exact amount you need and what it is for.
2. Ask your current lender for the prepayment penalty and discharge cost in writing.
3. Get a refinance quote and a second mortgage quote on the same day, for the same amount and term.
4. Compare the effective annual cost of each, not the headline rate.
5. Test both against your budget if your income dropped for a few months.
6. Check your credit reports so you know what lenders will see. Canada has two national bureaus, Equifax Canada and TransUnion Canada, and a free copy of your credit report is available from each, as the FCAC — credit reports and scores page explains.

Questions to ask before you sign anything

What is the total cost over the full term, including fees? What happens if I pay it off early? Is the rate fixed or variable, and what triggers a change? What is the penalty for a missed payment? Who holds the charge on title, and in what order? If the answer to any of these is vague, that vagueness is your answer.

If a lender or broker is federally regulated, consumer complaints go to the Financial Consumer Agency of Canada; for most other lenders, a provincial regulator handles them. The FCAC — complaints page explains the federal route.

This is a significant, secured decision. A mortgage broker or a licensed financial professional can look at your actual numbers — income, equity, penalties, timeline — and tell you which structure fits. General information, including everything on this page, cannot do that.

LoanGoose is a loan matching and comparison service, not a lender. The lowest rates are only available to the most qualified applicants.