Second Mortgage vs. HELOC in Ontario: Which Is Right for You?
You've built equity in your Ontario home and now you need to access it. Two common options — a second mortgage and a Home Equity Line of Credit (HELOC) — both let you borrow against that equity, but they work very differently. Choosing the wrong one can cost you thousands in unnecessary interest or leave you without the flexibility you need.
What Is a Second Mortgage?
A second mortgage is a fixed-amount, fixed-term loan secured against your home that sits behind (in second position to) your existing first mortgage. You receive the full amount upfront and make regular payments of principal and interest over the term.
Second mortgages in Ontario are available from A-lenders (banks), B-lenders, and private lenders. Private second mortgages are particularly accessible for borrowers with bruised credit or high existing mortgage balances, since private lenders focus on equity rather than income and credit scores.
What Is a HELOC?
A Home Equity Line of Credit (HELOC) is a revolving credit facility secured against your home. Like a credit card, you can draw funds up to your approved limit, repay them, and draw again. You only pay interest on what you've actually borrowed.
HELOCs in Canada are typically offered by the major banks and credit unions. The maximum HELOC available is 65% of your home's value (or up to 80% combined with your first mortgage balance). They are almost exclusively offered by A-lenders — if you don't qualify with a bank, a HELOC is generally not available to you.
Key Differences
| Feature | Second Mortgage | HELOC |
|---|---|---|
| Structure | Lump sum, fixed term | Revolving line of credit |
| Interest | Fixed or variable rate | Variable (prime + spread) |
| Payments | Interest only (most lenders); some require blended | Interest only (minimum) |
| Access to funds | Once, upfront | Draw as needed |
| Max LTV | Up to 80% | 80% combined (A-lender) |
| Who qualifies | B and private lenders (mostly private) | A-lenders only |
| Credit requirement | Flexible (private = equity-based) | Typically 680+ credit |
| Best for | Defined, one-time needs | Ongoing, variable needs |
When a Second Mortgage Makes More Sense
You Have a Defined, One-Time Need
Debt consolidation, tax arrears, property purchase, home renovation with a fixed budget — if you know exactly how much you need and you need it now, a second mortgage is the cleaner solution. You borrow a fixed amount and pay it down on a set schedule.
Your Credit or Income Doesn't Qualify for a HELOC
HELOCs are A-lender products with A-lender qualification requirements. If your credit score is below approximately 680, your income doesn't fully qualify, or you're self-employed with write-offs, a HELOC is likely not available to you. A private second mortgage has no such restrictions — it's equity-based.
You Have High Existing Mortgage Debt
If your existing mortgage balance is already above 65% of your home's value, you don't qualify for a HELOC (which maxes out at 65% on its own). A private second mortgage can lend into much higher LTV positions.
You Need Funds Quickly
A private second mortgage can close in 5–10 business days. HELOC approval, especially if you're adding one to an existing mortgage, can take 4–8 weeks.
When a HELOC Makes More Sense
You Have Ongoing, Variable Funding Needs
Renovations happening in phases, a business that needs periodic injections, or an investment portfolio you add to over time — a HELOC lets you draw exactly what you need, when you need it, and pay interest only on what's outstanding.
You Want Maximum Flexibility
A HELOC never needs to be repaid in full (as long as your home is the security and you qualify). You can draw, repay, and redraw indefinitely. A second mortgage has a fixed term and must be repaid or renewed.
You Qualify with an A-Lender
If you have strong credit, stable employment, and enough equity — and your current mortgage is below 65% LTV — a HELOC from your bank offers the lowest cost and maximum flexibility. It's the best tool when you qualify.
Broker insight: Many clients come to us wanting a HELOC only to discover they don't qualify at their bank. A second mortgage — sometimes private — ends up being the practical solution. Know your options before you assume a specific product is available to you.
Can You Have Both?
Yes. In some situations, a combination works well: a HELOC for ongoing operational needs, and a second mortgage for a specific large purchase or debt consolidation. However, having both increases your debt service load and needs to be carefully structured to ensure you can qualify and sustain the payments.
Not Sure Which Option Fits Your Situation?
Paul Hunjan has access to A-lenders, B-lenders, and private lenders for second mortgages across Ontario. He'll tell you honestly which product — or combination — makes the most sense for your equity, credit, and goals.
Explore Second Mortgage OptionsFrequently Asked Questions
Can I get a second mortgage if I already have a HELOC?
Yes, in most cases. A private second mortgage can sit behind both your first mortgage and an existing HELOC. The total lending will depend on your available equity — private lenders typically lend up to 75–80% of the property's value combined.
What happens to a second mortgage when I renew my first?
Second mortgages are separate from your first mortgage and renew on their own schedule. When your first mortgage comes up for renewal, the second mortgage stays in place. However, if you want to switch lenders on your first mortgage, the new lender will need the second mortgage holder's consent (a "postponement agreement") to maintain their first position.
Are interest rates higher on second mortgages?
Yes. Second mortgages carry higher rates than first mortgages because the second position lender faces more risk — they're paid out after the first mortgage holder in the event of a sale or default. A-lender second mortgages are modestly higher than first mortgage rates. Private second mortgages typically range from 7–12%+ OAC, reflecting the higher risk and more flexible qualification.
