A home equity line of credit (HELOC) is a revolving, secured credit line that lets you borrow against the equity in your home. This guide explains how a HELOC is secured, how limits are set in Canada, and the risks of putting your home on the line.
A home equity line of credit (HELOC) is a revolving credit line secured by your home. In Canada, you can borrow up to an approved limit, repay what you use, and borrow again, usually at a variable interest rate. Because the lender registers a charge against your property, a HELOC is secured debt: it may cost less than unsecured credit, but your home is collateral for the balance you owe.
| Feature | How a HELOC usually works | Why it matters |
|---|---|---|
| Security | The lender registers a charge against your home | Default can put your home at risk |
| Limit | Based on home value, mortgage balance, and other liens; federally regulated lenders generally cap the HELOC portion at 65% of value and total secured debt at 80% | Your available credit can change if values or rules change |
| Interest | Usually variable and tied to the lender's prime rate; rates vary by lender and province | Payments can rise when rates rise |
| Repayment | Often interest-only minimums during a draw period, then principal repayment; terms vary by lender and product | Interest-only payments can make the debt look cheaper than it is |
| Access | Revolving: repay and reborrow up to the limit | Convenient, but easy to treat as ongoing income |
How a HELOC is secured
A HELOC is secured by the equity you have built in your home. Equity is the difference between your home's market value and the total of mortgages, liens, and charges registered against it. A lender may use an appraisal, automated valuation, or desktop estimate to set the limit. The lender then registers a charge on title, often as a collateral charge. In some provinces and with some lenders, that charge can make switching or refinancing more expensive because the lender may need to discharge or assign the charge. Check the terms and provincial land registry rules before signing. The the Financial Consumer Agency of Canada has mortgage information that explains secured lending basics.
How lenders set your HELOC limit
For federally regulated lenders, the HELOC portion is generally limited to 65% of the home's value, and all loans secured by the home together are generally limited to 80% of value. The the Office of the Superintendent of Financial Institutions publishes guidance for federally regulated institutions. Provincial regulators and credit unions may follow different rules.
Suppose your home is worth $500,000 and you owe $300,000 on your first mortgage. The 80% total limit is $400,000. After subtracting the $300,000 mortgage, you may have up to $100,000 of additional secured borrowing room. The 65% HELOC cap is $325,000, so the $100,000 figure is lower and may be the practical ceiling. If you owed only $100,000 on the mortgage, total room would be $300,000, and the 65% cap would allow up to $325,000; in that case, $300,000 may be the ceiling. Lenders can set lower limits based on credit score, income, property type, location, and their own risk appetite.
How you repay a HELOC
Most HELOCs are revolving. During the draw period, you can borrow, repay, and borrow again. Minimum payments are often interest-only or a small percentage of the balance. At the end of the draw period, some lenders require principal payments or convert the balance to a fixed-term loan. Because most HELOC rates are variable, your interest cost changes with the lender's prime rate. For example, if you owe $50,000 and the rate rises by one percentage point, your annual interest could rise by about $500 before any compounding, unless you pay down principal. That is not a prediction; it is arithmetic. The the Financial Consumer Agency of Canada explains that credit agreements must disclose key terms, including interest and payment conditions.
Risks of using a HELOC
The biggest risk is that your home secures the debt. If you cannot make payments and the lender takes enforcement action, you could face power of sale or foreclosure, depending on provincial law. A HELOC can also be a demand facility in some agreements, meaning the lender may be able to demand repayment or reduce the limit under the contract. Read the terms. Variable rates create payment shock. Falling home values can reduce or freeze your available credit. A readvanceable mortgage or combined mortgage-HELOC can make it easy to increase total debt without a new approval. Carrying a large HELOC balance can affect your credit score and debt-to-income ratios when you apply for other credit. Late payments, missed payments, and high utilization may be reported to credit bureaus. The the Financial Consumer Agency of Canada has information on credit reports and scores.
HELOC vs other borrowing
A HELOC is not the same as a home equity loan. A home equity loan usually gives you a lump sum with a fixed rate and set amortization. A HELOC is revolving and usually variable. An unsecured line of credit or credit card does not put your home at risk, but rates are often higher because the lender has no collateral. Refinancing your mortgage may give you a fixed rate and longer amortization, but it can also reset prepayment penalties and closing costs. A reverse mortgage is different again and is generally for older homeowners. There is no single best option; compare total cost, flexibility, and risk. A loan payment calculator can help you estimate payments, but it cannot capture every fee or rate change.
HELOC and co-signing or joint borrowing
A HELOC can be held by one borrower or jointly. If someone co-signs or is added as a joint borrower, they are generally responsible for the debt. Before co-signing a HELOC, understand that the lender may pursue any borrower for the full balance. See our guide to what a co-signer is and bad credit loans for related borrowing options.
Who this suits and common mistakes
A HELOC may suit homeowners with stable income, a clear repayment plan, and a specific use such as renovations, debt consolidation, or an emergency reserve. It may not suit anyone who cannot handle variable payments or who might treat the limit as income.
- Borrowing the maximum because it is approved, rather than because the money is needed.
- Making interest-only payments for years and never reducing principal.
- Using a HELOC to cover daily spending or a lifestyle gap.
- Ignoring the lender's ability to reduce the limit or demand repayment under the agreement.
- Forgetting that a collateral charge may affect switching lenders or refinancing.
- Adding a co-signer or joint borrower without explaining the full risk.
- Assuming the rate will stay low; variable rates can rise.
If you are comparing borrowing options, start with the total cost over the expected repayment period, not just the advertised interest rate. A HELOC can be useful, but it is still debt secured by your home. Read the contract, ask about discharge fees, prepayment terms, and what happens if property values change, and consider whether a smaller limit would reduce the temptation to over-borrow.