Key Takeaway

A HELOC (home equity line of credit) is usually better if you need flexible access to smaller amounts over time and want to pay interest only on what you borrow. Mortgage refinancing is better if you need a large lump sum, want a lower fixed rate than your existing mortgage, or plan to consolidate high-interest debt. The right choice depends on how much equity you need, whether you prefer revolving credit or a one-time advance, and your tolerance for prepayment penalties when breaking your current mortgage term.

What Is a HELOC in Canada

A HELOC is a revolving credit line secured by the equity in your home. You can borrow up to 65 per cent of your home’s appraised value, minus any outstanding mortgage balance, and the combined total of your mortgage and HELOC cannot exceed 80 per cent loan-to-value (LTV). According to the Financial Consumer Agency of Canada, most HELOCs carry a variable interest rate tied to the lender’s prime rate, and you pay interest only on the amount you actually draw, not the full credit limit.

HELOCs are open products, meaning you can repay and re-borrow at any time without penalty. This makes them ideal for ongoing expenses such as home renovations, tuition, or business investment where you may need funds in stages. Because you only pay interest on the outstanding balance, a HELOC can be cheaper than borrowing the full amount upfront if you do not need it all at once.

What Is Mortgage Refinancing

Refinancing means replacing your current mortgage with a new one, usually for a higher principal amount, and taking the difference in cash. You can refinance up to 80 per cent of your home’s appraised value (the same combined LTV cap as a HELOC). The Canada Mortgage and Housing Corporation notes that refinancing lets you lock in a new fixed or variable rate and reset your amortization period, which can lower your payment or spread the cost over a longer term.

Refinancing is typically better when you need a large sum at once, want to consolidate debt at a lower rate, or your existing mortgage rate is significantly higher than current market rates. The trade-off is that breaking your mortgage term early usually triggers a prepayment penalty, calculated as either three months’ interest or the interest rate differential (IRD), whichever is greater. As covered in Principles of Finance, refinancing decisions hinge on comparing the cost of the penalty and the new rate against the benefit of accessing equity or reducing your overall interest expense.

Key Differences and When to Choose Each

Cost: A HELOC typically has a higher variable rate (often prime plus 0.5 per cent or more) than the fixed rate you can secure through refinancing. If rates are low and you need a large, predictable amount, refinancing at a fixed rate may save you money over the life of the loan. If you need smaller, irregular draws, the HELOC’s flexibility usually outweighs the rate premium.

Read also: Home Equity Line of Credit (HELOC) in Canada: How It Works

Prepayment penalty: Refinancing requires breaking your current mortgage term, which can cost thousands of dollars if you are locked into a closed fixed-rate mortgage with several years remaining. A HELOC does not require breaking your mortgage; you simply add the line of credit alongside it. If your mortgage penalty would be steep, a HELOC is the cheaper option for accessing equity now.

Repayment structure: A HELOC is revolving credit with interest-only payments, so your monthly cost is low but you must actively pay down the principal yourself. Refinancing gives you a new amortized mortgage with fixed principal-plus-interest payments, which forces discipline but locks you into a higher monthly obligation. Choose refinancing if you want structured repayment and choose a HELOC if you value payment flexibility and plan to manage the balance yourself.

Access to funds: With a HELOC, you can draw and repay as needed, making it ideal for ongoing projects or uncertain expenses. Refinancing gives you a single lump sum at closing and no further access unless you refinance again. If your equity needs are unpredictable or spread over time, a HELOC is the better fit.

Next Step

Compare the prepayment penalty on your current mortgage (ask your lender for the exact figure) against the amount of equity you need and the rate difference between a HELOC and a new fixed mortgage. If the penalty is low or your rate is high, refinancing may be worth it for a large sum. If the penalty is significant or you only need partial access to your equity, a HELOC is usually the more cost-effective choice. Confirm current rates and qualification criteria with a licensed mortgage broker, as eligibility, combined LTV caps, and product availability vary by lender and province.

Disclaimer: This article provides general educational information only and is not personalized financial, lending, legal, or tax advice, nor an offer or commitment to lend. Mortgage products, eligibility, interest rates, prepayment penalties, and combined loan-to-value limits vary by lender, province, and your personal circumstances. HELOC and refinancing rules, including the 80 per cent LTV cap, are set by the Office of the Superintendent of Financial Institutions (OSFI) and may change. Consult a licensed mortgage broker or your financial institution to confirm current terms, penalties, and the best option for your situation before making any borrowing decision.