What a HELOC actually is
A Home Equity Line of Credit (HELOC) is a revolving credit line — like a credit card — that's secured against your home's equity. The lender registers a charge on your title, just like a first mortgage, giving them recourse if you stop paying. In exchange for that security, you get:
- A pre-approved credit limit you can draw against any time
- Interest charged only on the amount you've actually used
- Interest-only minimum payments
- Often a debit card or chequing-style access for easy spending
Most Canadian HELOCs are structured as "readvanceable" — meaning as you pay down your first mortgage's principal, the HELOC limit grows automatically. This creates a powerful (but dangerous) compound effect: borrow, repay, repeat.
Think of a HELOC as a low-cost source of capital with high-cost discipline requirements. The math is favourable; the temptation is brutal.
The 65% LTV cap
In 2012 OSFI capped readvanceable HELOCs at 65% loan-to-value for federally regulated lenders. Combined with a first mortgage, the total secured debt can run up to 80% LTV — but the HELOC portion alone can never exceed 65%.
Worked example — $1.1M home with a $420,000 first mortgage:
- Total possible secured debt (80% LTV): $880,000
- Max HELOC portion (65% LTV): $715,000
- Available HELOC after first mortgage: $880,000 − $420,000 = $460,000
Run your exact numbers in the home equity / HELOC calculator.
How rates work
HELOCs price as prime + a spread, typically:
- Prime + 0.50% — best discount, requires a strong file (650+ score, low debt, stable income, large equity cushion)
- Prime + 1.00% — common discount for most homeowners
- Prime + 2.00% or higher — alt-A and private HELOCs, smaller equity cushion
When prime moves (Bank of Canada changes rates), your HELOC rate moves with it. Unlike a fixed-rate mortgage, there's no rate hold — you accept full exposure to rate changes.
If you're carrying a meaningful HELOC balance, a 200 bps rate spike (like 2022-2023) doubles your interest cost overnight. Stress-test your budget at prime + 4% before maxing out.
When a HELOC is the right tool
Renovations that add real value
Kitchen renos, basement suites, bathroom additions — projects with 60-90% resale recovery — make sense to fund through HELOC. The interest is sometimes tax-deductible if you can show the renovation generates rental income (legal basement suite, for example).
Investment property down payments
Pulling equity from a primary residence to fund a rental property down payment is a classic Canadian wealth-building play. The HELOC interest IS tax-deductible against the rental income (CRA confirmed by income tax interpretation bulletin IT-533).
Debt consolidation at lower rates
Rolling $30,000 of credit card debt (22%) into a HELOC at 7% saves roughly $4,500/year in interest — provided you close the cards behind you. See our refinance to consolidate calculator.
Bridge financing during a sale
If you're selling your current home to buy a new one with overlapping dates, a HELOC is often cheaper than a formal bridge loan. Some lenders specifically allow short-term HELOC draws for this purpose.
A standing emergency fund for high-net-worth households
Some borrowers establish a HELOC purely as a backup line — never drawing on it — to access cash quickly if needed. Once set up, the standing line costs nothing as long as you don't draw.
When a HELOC is the wrong tool
Day-to-day spending
The interest-only minimum payment makes carrying balances feel painless. Borrowers who use a HELOC like a chequing account end up paying interest on $40,000+ for years on what was meant to be casual spending. Catastrophic over a decade.
Funding a depreciating asset
A car loan at 6% is cheaper than 22% credit card debt, but it's still secured against the car. Using a HELOC to buy a vehicle means you're securing depreciating consumption against your home. If you stop paying, the lender takes the house, not the car.
Investing in volatile assets without a plan
The "Smith Manoeuvre" (HELOC → invest in dividend-paying stocks → deduct interest) works in spreadsheets. In reality, most retail investors who try it discover they don't have the temperament to hold through a 30% drawdown when their HELOC balance is still 100%. If you can't sleep through a crash, don't borrow to invest.
How qualifying works
The federal stress test applies to HELOCs. To qualify for a HELOC, you must show you can carry the payment at the qualifying rate (higher of contract + 2% or 5.25%) on the full credit limit, not just what you plan to draw.
Worked example — applying for a $200,000 HELOC at prime + 1% (8.0% contract rate):
- Qualifying rate: 10.0%
- Hypothetical interest-only payment: $200,000 × 10.0% / 12 = $1,667/mo
- Your total monthly debt (TDS) including this hypothetical payment must stay within insurer caps
This is why lenders cap HELOC limits at 65% LTV — not just OSFI rules, but qualifying math.
The mechanics of using a HELOC
Setting one up
Apply through a broker or directly with your bank. Most lenders offer HELOCs alongside their mortgage products. The lender registers a charge on title, you sign acknowledgements about the variable rate and recall provisions, and the credit line activates within a few days.
Setup costs:
- Legal / registration: $1,000-$1,500 (sometimes covered by the lender)
- Appraisal: $300-$500 (sometimes waived)
- Annual fees: $0-$60 (most have no annual fee)
Drawing money
Once active, draws happen through:
- A linked HELOC chequing account
- Online banking transfer to your regular account
- A HELOC-branded debit card (some lenders)
- Wire instructions to a recipient (e.g. real-estate lawyer for an investment property closing)
Repayment
Minimum payment is interest only, calculated on the average daily balance. You can pay any amount above minimum — there's no penalty for paying off a HELOC early. Most borrowers pay interest-only minimum and let the balance ride.
Discipline tip: set up an automatic transfer of an extra $250-$500/month against any HELOC balance. Interest-only minimums let balances live forever — automatic extra payments retire them.
HELOC vs second mortgage vs refinance
| Tool | Cost | Flexibility | When to use | |---|---|---|---| | HELOC | Prime + 0.5-1.5% | High — revolving, draw + repay | Renovations, ongoing access, debt consolidation | | Second mortgage | 7-12% + 1-3% fee | Low — fixed payment, fixed term | Short-term cash need, you'll refinance into A-tier soon | | Refinance (with cash-out) | A-tier mortgage rate | None — one lump sum | Large one-time need, want lowest possible rate |
A HELOC is the right answer when you want optionality. A refinance is right when you need a large lump sum at the cheapest rate.
The recall risk
Most Canadian HELOCs include a "demand" clause — meaning the lender can require full repayment at any time. In practice, lenders almost never recall a HELOC unless:
- You stop paying any of your accounts at that bank
- Your home value drops significantly relative to the secured debt
- You sell the home (mandatory)
- The lender exits HELOC products entirely
In 2008 some lenders did recall HELOCs when housing values dropped. In 2022 a few lenders tightened limits without recalling. Be aware the risk exists.
Common questions
Is HELOC interest tax-deductible?
Only if you can directly link the borrowing to income generation (rental income, investment income). Borrowing to fund personal consumption is NOT deductible. Talk to a tax accountant before claiming.
Can I get a HELOC if my income is BFS?
Yes, but expect more documentation. A-tier lenders may want 2 years of T1 General + Notice of Assessment + business financials. Alt-A and credit unions are typically more flexible.
Does a HELOC count against my qualifying for a future mortgage?
Yes. Lenders see the credit limit and assume the worst-case carrying cost. Even with zero balance, a $300,000 HELOC limit can knock down what you'd qualify for on a new property mortgage.
Should I close the HELOC if I'm not using it?
No — once set up, leave it open. Closing means re-applying later (more paperwork, fees, qualifying risk). Just don't draw on it.
Can I have a HELOC with no first mortgage?
Yes — called a "stand-alone HELOC." Less common but available. Combined limit is still 65% LTV.
Bottom line
A HELOC is a powerful financial tool when used for value-creating purposes (renovations, investment, debt consolidation) and dangerous when used as a slush fund. The math is favourable: 7-9% beats 22% cards and unsecured credit lines. The discipline required is real.
Run your available HELOC limit in the home equity / HELOC calculator. Then think hard about whether you have a specific value-creating use before signing.
Related reading: Refinance to consolidate debt, When to refinance, Stress test history.