HELOC vs Refinance in Ontario: Which Way to Tap Your Home Equity?
The short answer
A HELOC (home equity line of credit) is a revolving credit line secured against your home that you draw, repay and re-draw as needed — flexible, interest-only optional, but variable-rate. A refinance replaces your mortgage with a new, larger one and gives you the equity as a lump sum at a (often lower, fixable) mortgage rate, but may trigger a break penalty if done mid-term. Use a HELOC for ongoing or uncertain needs and flexibility; refinance for a large one-time need at the lowest rate.
HELOC vs Refinance, at a glance
| HELOC | Refinance | |
|---|---|---|
| How you get the money | A revolving limit you draw as needed | A lump sum when the new mortgage funds |
| Rate | Variable, tied to prime; usually higher than a mortgage | Mortgage rate — often lower, can be fixed |
| Payments | Interest-only option; flexible | Regular principal + interest, amortized |
| Flexibility | Borrow, repay and re-borrow anytime | Fixed amount; re-accessing means another refinance |
| Cost to set up | Low; often no penalty (added alongside the mortgage) | May trigger a break penalty if done mid-term |
| Best for | Renovations over time, investing, a cash cushion | A large one-time need at the lowest rate |
Flexibility vs lowest rate
The core trade-off is flexibility versus cost. A HELOC lets you borrow only what you need, when you need it, and pay interest only on the drawn balance — ideal for a renovation that unfolds over months, an investment opportunity, or a standby cash cushion. But it's variable-rate and typically priced above a mortgage. A refinance locks in a lump sum at a lower, potentially fixed mortgage rate — cheaper for a large, known, one-time need — but you get the whole amount at once and start paying it down immediately.
Watch the penalty and the total borrowing limit
- Refinancing mid-term can trigger a break penalty (an IRD on a fixed mortgage can be large) — factor it into the comparison.
- A HELOC added at renewal or alongside a new mortgage usually avoids a penalty.
- Both are capped by your equity — lenders generally limit total secured borrowing to around 80% of your home's value.
- Qualifying uses the stress test either way, so confirm you qualify before counting on the funds.
Many people use both
A common structure is a 'readvanceable' mortgage that pairs a mortgage with a HELOC, so as you pay down principal, your available HELOC limit grows. That gives you the low rate of a mortgage plus the flexibility of a line of credit — useful for homeowners who renovate, invest or want ongoing access to equity.
Choose HELOC if…
- You need flexible, ongoing or uncertain access to equity
- You want to pay interest only on what you actually use
- You're renovating over time, investing, or want a cash cushion
- You want to avoid a mortgage break penalty
Choose Refinance if…
- You have a large, one-time, known need
- You want the lowest rate and the option to fix it
- You prefer a set repayment schedule that pays the balance down
- You're already at renewal (no penalty to refinance)
Key takeaways
- HELOC = flexible, revolving, variable-rate, interest-only optional — pay for what you use.
- Refinance = lump sum at a lower, fixable mortgage rate, but may cost a break penalty mid-term.
- Both are capped by your equity (typically ~80% of home value) and qualified under the stress test.
- A readvanceable mortgage combines both — mortgage rate plus a growing line of credit.
Not sure which is right for you?
Frequently asked questions
Is a HELOC or refinance cheaper?
A refinance usually carries a lower interest rate (a mortgage rate, often fixable), so for a large one-time need it's typically cheaper on rate — but it can trigger a break penalty mid-term. A HELOC costs more on rate but you only pay interest on what you draw, which can be cheaper if you borrow little or briefly.
Can I get a HELOC without breaking my mortgage?
Often yes. A HELOC can usually be added alongside your existing mortgage (subject to equity and qualification) without breaking it, so you avoid a penalty. Refinancing, by contrast, replaces the mortgage and may incur a break penalty if done before maturity.
How much can I borrow against my home?
Lenders generally limit total borrowing secured against your home to about 80% of its value, minus your existing mortgage balance — whether via a HELOC, a refinance, or a combination. Your equity sets the ceiling.
Should I use a HELOC or refinance for renovations?
For a renovation that unfolds over time or has an uncertain final cost, a HELOC's draw-as-you-go flexibility fits well. For a single large project with a fixed budget, a refinance at a lower rate may cost less overall — compare the rate difference against any break penalty.
Related comparisons
General information for Ontario, not legal, tax or financial advice. Figures describe how each option works, not current rates or prices. Confirm specifics with a licensed professional before you decide.