A HELOC, or home equity line of credit, is a revolving loan secured against the equity in your home. It lets you borrow up to a set limit, pay the balance down, and borrow again, similar to a credit card but at a far lower rate because your property backs the debt.
Equity is the share of your home you actually own, meaning its appraised value minus whatever you still owe on your mortgage. Lenders in Canada let you convert part of that equity into available credit. A standalone HELOC is generally capped at 65% of your home's appraised value. When it is bundled with your existing mortgage in what lenders call a readvanceable mortgage, the two together cannot exceed 80% of the home's value. Because of those ceilings, you need meaningful equity built up before a HELOC becomes an option, which is why most owners qualify only after several years of payments or after putting down a substantial down payment.
The rate on a HELOC is variable. It floats with your lender's prime rate, so the cost of borrowing rises and falls whenever the Bank of Canada shifts its policy rate. During the draw period you can make interest-only minimum payments on whatever you have used. That keeps monthly obligations low, but the principal does not shrink unless you deliberately pay it down. The flexibility suits people funding renovations, tuition, or an uneven cash flow, though it also makes carrying a balance far longer than intended surprisingly easy.
Qualifying is not automatic even when the equity is there. Federal rules require you to pass the mortgage stress test, proving you could still handle payments at your actual rate plus two percent, or 5.25 percent, whichever is higher. Lenders also weigh your income, your other debts, and your credit history. Since the rate moves with prime, the same trade-off you weigh with any fixed or variable mortgage shows up here as well. A HELOC is not insured, so it stays available only to owners holding at least 20 percent equity in their home.
Related reading: Mortgage Stress Test in Canada: How It Works, Fixed vs Variable Mortgage in Canada: Which Is Better?, and How Much Down Payment Do You Need in Toronto?