HELOC vs Mortgage Refinance in Canada 2025

Bottom line: A HELOC offers flexible, revolving access to equity at a variable rate with no prepayment penalties. A mortgage refinance gives you a lump sum at a fixed or variable rate, often with lower rates — but comes with penalties if you break your term early. Choose based on whether you need ongoing flexibility or a one-time large sum.

When Canadian homeowners want to tap their home equity, two options dominate: a HELOC or a mortgage refinance. Both use your home as collateral and give you access to equity, but they work very differently. Understanding the trade-offs is critical before committing.

How Each Product Works

HELOC (Home Equity Line of Credit)

A HELOC is a revolving line of credit secured against your home. You're approved for a maximum credit limit and can draw funds as needed, repay, and borrow again. Interest accrues only on the outstanding balance. Most HELOCs have no fixed repayment schedule beyond minimum interest payments.

Mortgage Refinance

Refinancing means breaking your existing mortgage and replacing it with a new, larger one — effectively "cashing out" the equity difference. You receive a lump sum at closing. The new mortgage has a fixed term (typically 1–5 years), with set principal and interest payments.

Side-by-Side Comparison

Feature	HELOC	Mortgage Refinance
Access structure	Revolving credit	Lump sum
Rate type	Variable (prime + spread)	Fixed or variable
Typical rate	Prime + 0.50%	Fixed rates vary; often lower
Max borrowing	65% of home value	80% of home value (combined)
Prepayment penalty	None	Yes — IRD or 3 months interest
Legal/setup costs	$500–$1,500	$1,000–$3,000+
Payment schedule	Interest only (minimum)	Fixed principal + interest
Rate certainty	Floats with prime	Fixed rate available
Best for	Ongoing, flexible needs	Large one-time lump sum

When a HELOC Makes More Sense

You need ongoing access to funds (e.g., staged renovation project)
You want to pay interest only when you actually use the funds
You plan to repay quickly and don't want to lock into a mortgage term
You're using the Smith Manoeuvre and want interest-deductible flexibility
You're near mortgage renewal and don't want to pay a break penalty now

When a Mortgage Refinance Makes More Sense

You need a large lump sum and want rate certainty
You're at mortgage renewal already (no break penalty)
Current fixed rates are very attractive relative to prime
You want to consolidate all debt into one structured payment
You need to borrow more than 65% of your home's value

Timing tip: The best time to set up a HELOC is at your mortgage renewal. You avoid early mortgage penalties and can combine both products (a readvanceable mortgage) at the same time. Setting up a HELOC mid-term may still make sense if your equity is strong enough to justify the setup costs.

Breaking Your Mortgage to Refinance: The Cost

If you break a fixed-rate mortgage early to refinance, you'll pay an Interest Rate Differential (IRD) penalty. This can be substantial — sometimes $100 to $30,000 on a large mortgage depending on current rates versus your locked-in rate. Variable-rate mortgages typically carry a 3-month interest penalty, which is more predictable and often much lower.

Always calculate the break penalty before deciding to refinance. Your lender must provide this estimate by law.

Can You Have Both a HELOC and a Mortgage?

Yes — this is actually the most common setup in Canada. A readvanceable mortgage combines a traditional amortizing mortgage with a HELOC component. As you pay down your mortgage principal, your available HELOC limit automatically increases. Products like Scotiabank STEP, RBC Homeline, TD FlexLine, and Manulife One work this way.

Tax Considerations

Neither HELOC interest nor mortgage interest is tax-deductible in Canada for personal use. However, if the funds are used to earn income (e.g., investing in dividend stocks or a rental property), the interest may be deductible. This applies equally to both refinanced mortgage funds and HELOC draws.

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Frequently Asked Questions

Is a HELOC better than refinancing?

It depends on your situation. If you need flexibility and expect to repay quickly, a HELOC is usually better. If you need a large lump sum and prefer fixed payments and rate certainty, refinancing may be smarter.

Can I get both a HELOC and a mortgage at the same time?

Yes — readvanceable mortgages combine both. As you pay down your mortgage, your HELOC limit rises automatically.

What's the maximum I can borrow with a HELOC vs refinance?

HELOC: up to 65% of home value (combined with mortgage, up to 80%). Refinance: up to 80% LTV on its own. So for maximum equity access, a refinance technically allows slightly more borrowing.