How a HELOC Works in Canada
A home equity line of credit is revolving credit secured against your home. You're approved for a limit, you draw only what you need, and you pay interest only on the balance you're actually carrying.
The short answer
In Canada a HELOC can be registered up to 65% of your home's appraised value on its own, or combined with a mortgage up to 80% of value in a readvanceable setup. The rate is variable — typically prime plus a spread — and the minimum payment is interest only. You qualify at the stress-test rate, not the rate you pay, and the credit remains available as you pay it down.
What a HELOC is, precisely
A HELOC is a secured revolving line of credit registered against the title of your home. Unlike a mortgage, there's no fixed amortization schedule and no set payment that reduces the principal — the minimum payment is the interest on whatever you've drawn. Pay a chunk back and that room becomes available again without reapplying.
Most Canadian HELOCs are variable-rate, priced at the lender's prime rate plus a spread. When prime moves, your interest cost moves with it in the following billing period.
How much you can qualify for
| Structure | Maximum registered against the home |
|---|---|
| Standalone HELOC | 65% of appraised value |
| HELOC combined with a mortgage (readvanceable) | 80% of appraised value, with the HELOC portion capped at 65% |
| Refinance without a HELOC | 80% of appraised value |
Those are ceilings, not entitlements. Income, credit and the appraised value all shape the actual approval, and you must qualify at the stress-test rate — the greater of your contract rate plus 2% or 5.25% — even though your real payment is interest only.
Readvanceable mortgages
A readvanceable mortgage pairs an amortizing mortgage with a HELOC behind it. As you pay down the mortgage principal, the HELOC limit grows by the same amount, so your available credit increases with every payment. It suits homeowners who want an ongoing buffer — renovation phases, business seasonality, a self-employed income smoothing tool — rather than a single lump sum.
HELOC or refinance?
| Consideration | HELOC | Refinance |
|---|---|---|
| Best for | Ongoing or uncertain need | One known amount |
| Rate type | Variable, prime plus a spread | Fixed or variable mortgage rate |
| Minimum payment | Interest only | Principal and interest |
| Debt reduction | Only if you make principal payments yourself | Built into the payment |
| Breaks your current term? | No | Usually yes, so a penalty may apply |
Common, sensible uses
- A renovation paid out in stages, where you'd rather not borrow the full amount up front.
- A cash-flow buffer for self-employed or commissioned income between deposits.
- Bridging a tax bill, tuition or a family obligation at a rate far below a credit card.
- Holding a down payment ready while you shop for the next property.
Common questions
How does a HELOC work in Canada?
You're approved for a credit limit secured against your home, generally up to 65% of its appraised value on a standalone HELOC or 80% when combined with a mortgage. You draw what you need, pay interest only on the drawn balance at a variable rate, and the room becomes available again as you repay it.
Is a HELOC cheaper than refinancing?
The HELOC rate is usually higher than a mortgage rate, but a HELOC doesn't break your existing term, so there's no prepayment penalty. Which one costs less depends on your penalty, how much you need and how long you'll carry the balance.
Do I need to qualify again for a HELOC?
Yes. A HELOC is a new credit application with income, credit and appraisal requirements, and it's stress-tested even though the minimum payment is interest only.
Can my lender reduce or freeze my HELOC?
A HELOC is demand credit, so a lender can reduce the limit or freeze further draws — most often after a significant drop in property value or a change in your credit profile. That's a reason not to treat one as a guaranteed emergency fund.
Is HELOC interest tax deductible in Canada?
Only when the borrowed money is used to earn investment or business income, and the tracing has to be clean. Interest on funds used for personal spending or debt consolidation isn't deductible. Confirm your specific case with your accountant.
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Fixed for this scenario
- 5%
- New mortgage rate
- 30 yrs
- Amortization
- 18%
- Rate on unsecured debt
Monthly Impact
Assumptions
- New mortgage priced at 5% over a 30-year amortization, monthly, semi-annual compounding.
- Unsecured debt carries 18% interest with a 3% minimum monthly payment.
- Refinancing capped at 80% of your estimated home value.
- Penalties, legal, appraisal and discharge costs are not included.
This is an illustration, not a mortgage approval or financial recommendation. Actual results depend on interest rates, penalties, lender guidelines, qualification and your full financial situation.
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