HELOC vs. Refinance: Two Doors To Your Home Equity (How To Pick)

You’ve been paying down your mortgage for years, your home’s appreciated, and now you need access to some of that equity. The two most common paths are a HELOC (home equity line of credit) and a refinance. They look interchangeable from a distance — both let you borrow against your home — but the mechanics, costs, and best use cases are completely different.

The basics

A HELOCis a revolving line of credit secured by your home. You’re approved up to a maximum (typically up to 65% of your home’s value, with the HELOC + mortgage combined not exceeding 80% LTV). You can borrow, repay, and re-borrow indefinitely. Interest is only charged on the amount you actually have outstanding.

A refinancemeans breaking your current mortgage and replacing it with a new, larger one — with the difference paid out to you in cash at closing. You’re re-amortizing the new balance and paying interest on the full amount from day one.

The interest rate gap

HELOC rates are tied to prime + a spread. As of 2026, prime is 4.45%, and most HELOCs sit at prime + 0.50% (so ~4.95%). They float — if prime moves, your HELOC rate moves.

Refinance rates are full-fledged mortgage rates — whatever a 5-year fixed or variable is going for that day, similar to what you got on your original mortgage. Currently around 4.00–4.30% on insured purchases, slightly higher on uninsured refinances.

So all-in: refinance rates are typically 0.50–1.00% lower than HELOC rates. On large balances over long periods, that gap is meaningful money.

The flexibility gap (HELOC’s advantage)

HELOCs win on flexibility:

• Pay nothing if you don’t draw.A HELOC sits there with a $0 balance until you need it. You can have it “in case” without carrying debt.
• Interest-only payment options.Most HELOCs require only the interest each month, not principal. If you need lower minimum payments, that’s a built-in feature.
• Repay and re-borrow freely.Use it for a renovation, repay it, then later use it again for something else — no new application needed.
• Lower upfront cost.Setting up a HELOC during a regular mortgage transaction often costs $0–$300. Refinances can run $1,500–$3,000 in legal, appraisal, and discharge fees.

When to refinance instead

Refinance is the right call when:

• You know exactly how much you needand you’ll use it all upfront. There’s no benefit to HELOC’s revolving feature if you’re going to draw the full amount day one.
• You’re consolidating high-interest debt. The 0.50–1.00% lower rate adds up quickly on $100K of consolidated credit-card or unsecured-loan debt.
• You want fixed-rate certainty. HELOC rates float; refinance into a 5-year fixed and your payment is locked.
• Your existing mortgage is up for renewal anyway. Refinancing at renewal means no prepayment penalty — usually the cheapest moment to access equity.

When to use a HELOC instead

• Renovation projects where the cost is uncertain. Draw as needed, only pay interest on what you used.
• Investment property down payment. Many investors set up a HELOC and draw on it as opportunities come up.
• Emergency reserves. A HELOC is a no-cost backup line of credit if you have it set up but unused.
• You don’t want to break your current mortgage. If your existing mortgage has 3 years left at a great rate and the prepayment penalty would be punishing, the HELOC route avoids that problem entirely.

The third option: re-advanceable mortgage

Some lenders offer a re-advanceable mortgage— a product that combines a regular mortgage and a HELOC in one. As you pay down the mortgage, the HELOC limit grows in lockstep. Best of both worlds when set up correctly: low refinance-style rates on the mortgage portion, plus access to revolving credit on the HELOC portion as your equity builds.

Worth asking about if you’re due for a renewal or considering refinancing — not every lender offers them and they typically need to be set up at origination.

Tax-deductible interest (an advanced consideration)

Interest on debt borrowed for income-producing purposes (e.g. funding an investment property purchase or qualifying investments) is generally tax-deductible in Canada — whether the borrowing is via HELOC or refinance. If you’re using equity to invest, talk to your accountant before structuring the borrowing — the way the money flows matters for whether the interest qualifies for deduction.

Bottom line

• Need it once, big lump sum, want lower rate → refinance
• Need it intermittently, want flexibility, lower setup cost → HELOC
• Want both → re-advanceable mortgage

Want me to model both options side-by-side for your specific equity position? Send me your current mortgage balance, home value, and what you’re trying to fund — I’ll come back with the cost comparison and the right structure. Reach me here.