What Is a HELOC and How Does It Differ From Refinancing?
A Home Equity Line of Credit (HELOC) is a revolving credit facility secured against your home, allowing you to borrow and repay as needed up to a set limit. Refinancing replaces your existing mortgage with a new, larger one and gives you the equity difference as a lump sum. The key difference is flexibility: a HELOC lets you draw funds as needed and only pay interest on what you use, while a refinance gives you all the funds upfront at a fixed rate. In Ontario, where home equity has grown substantially in many markets, both options can unlock significant capital.
HELOC: Pros, Cons, and Ontario-Specific Considerations
A HELOC (Home Equity Line of Credit) in Ontario offers flexible access to funds with interest-only payment options and variable rates typically tied to prime. The revolving portion is generally limited to 65% of your home's appraised value, and if it's part of a readvanceable mortgage, the combined total of your mortgage and HELOC can go up to 80% of your home's value. This can make HELOCs a useful tool for renovations, investing, or managing uneven cash flow. On the downside, rates are variable and can rise with prime, and like any revolving credit, it requires discipline to avoid carrying balances long-term. Access and limits are always subject to lender approval, income, and overall qualification.
Refinancing: When a Lump Sum Makes More Sense
Refinancing is better when you need a specific amount for a defined purpose — debt consolidation, a major renovation, or a down payment on an investment property. You get the certainty of a fixed rate (if chosen), structured payments, and the discipline of regular principal reduction. In Ontario, refinancing allows you to access up to 80% of your home's value. The costs include a potential break penalty on your current mortgage, legal fees ($1,000–$2,000), and an appraisal fee. For many Ontario homeowners, the interest savings from refinancing at a lower rate can offset these costs within the first year.
Tax Implications Ontario Homeowners Should Know
If you use borrowed funds for investment purposes (rental property, investment portfolio), the interest may be tax deductible under CRA rules — this applies to both HELOCs and refinanced mortgages. This strategy, often called the Smith Manoeuvre, can effectively reduce your after-tax borrowing cost. However, if you use the funds for personal purposes (renovation, vacation, debt consolidation), the interest is not deductible. Ontario homeowners should work with both a mortgage broker and an accountant to structure their borrowing in the most tax-efficient way possible.
Which Option Is Right for Your Situation?
Choose a HELOC if you need flexible, ongoing access to funds, your needs are variable (like a phased renovation), and you're comfortable with variable-rate risk. Choose refinancing if you need a lump sum, want a fixed rate, or you're consolidating high-interest debt and need the discipline of structured payments. In many cases, the best solution is a combination mortgage that includes both a fixed-rate portion and a HELOC component — giving you the stability of fixed payments on your core mortgage with the flexibility of a credit line for future needs. I help Ontario homeowners structure the optimal blend for their goals.
Frequently Asked Questions
How much equity can I access with a HELOC in Ontario?
The revolving HELOC portion is generally limited to 65% of your home's appraised value. If it's part of a readvanceable mortgage, the combined total of your mortgage and HELOC can go up to 80% of the home's value, but the HELOC portion itself cannot exceed 65%. The exact amount available depends on your mortgage balance, income, and lender guidelines.
Is HELOC interest tax deductible in Ontario?
HELOC interest may be tax deductible if the borrowed funds are used for income-producing purposes, such as investing or purchasing a rental property. If the funds are used for personal expenses like renovations, vehicles, or vacations, the interest is not deductible. Tax treatment depends on how the funds are used and how they are structured and documented. I don't provide tax advice, so it's important to speak with your accountant or tax professional to confirm how this would apply to your specific situation.
Can I have both a HELOC and a mortgage at the same time?
Yes. A combination mortgage (also called a collateral mortgage) includes both a fixed-rate mortgage portion and a HELOC component. Many Ontario homeowners use this structure to get the best of both worlds: stable payments on their core mortgage with flexible access to equity through the HELOC.
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