Mortgage Refinance vs HELOC: Which Is Better for Accessing Home Equity?

# Mortgage Refinance vs HELOC: Which Is Better for Accessing Home Equity?

If you own a home in Canada and have built up equity, you have two primary ways to access that value: refinancing your mortgage or opening a Home Equity Line of Credit (HELOC). Both options let you borrow against the equity in your home, but they work very differently and suit different financial goals.

This guide from The Mortgage World breaks down how each option works, what each costs, and which makes more sense based on your specific situation.

How Mortgage Refinancing Works

Refinancing means breaking your current mortgage and replacing it with a new one, typically at a higher amount. The difference between your old mortgage balance and the new mortgage is the cash you receive.

Key features of refinancing:

• You can borrow up to 80% of your home's current appraised value, minus your existing mortgage balance
• The new mortgage replaces your existing mortgage entirely
• You get a new rate, new term, and new amortisation schedule
• The funds are received as a lump sum at closing
• You may need to pay a penalty to break your current mortgage early

Example:

Refinancing is best when you need a large, specific amount of money and want the certainty of fixed payments. Learn more about refinancing options on our refinance guide.

How a HELOC Works

A HELOC is a revolving line of credit secured against your home equity. Unlike refinancing, you do not replace your existing mortgage. Instead, the HELOC sits alongside it (or behind it, as a second charge on the property).

Key features of a HELOC:

• Borrow up to 65% of your home's value as a standalone HELOC, or up to 80% LTV combined with your mortgage
• Draw funds as needed, up to your approved limit
• Interest-only minimum payments on the amount you have drawn
• Variable interest rate, typically prime + 0.50% to prime + 1.00%
• No fixed repayment schedule on the principal
• No penalty to access or repay funds

Source: FCAC (Financial Consumer Agency of Canada), Home Equity Lines of Credit Guide, 2024

Example:

A HELOC gives you flexibility. You only pay interest on what you actually draw, and you can repay and redraw as often as you like. For more about using a HELOC as a second mortgage solution, see our second mortgage guide.

Head-to-Head Comparison

Source: Bank of Canada, Current Prime Rate and Posted Mortgage Rates, 2025

The Cost of Breaking Your Mortgage

This is often the deciding factor. If you refinance, you must break your current mortgage, and the penalty can be significant.

How mortgage penalties are calculated:

The Interest Rate Differential (IRD) penalty is where costs can escalate dramatically. If you locked in at a higher rate and current rates are lower, the IRD penalty compensates the lender for the interest they will lose. On a $400,000 mortgage with three years remaining and a 1.5% rate difference, the IRD penalty could exceed $18,000.

Source: FCAC, Understanding Your Mortgage Prepayment Penalty, 2024

When the penalty makes refinancing less attractive:

If your current mortgage has more than two years remaining on a fixed term, calculate the penalty carefully before assuming a refinance is the better option. In many cases, a HELOC is more cost-effective because it does not require breaking your existing mortgage.

When Refinancing Makes More Sense

Refinancing is typically the better choice when:

• You need a large lump sum - Renovations costing $100,000+, buying a second property for the down payment, or consolidating significant high-interest debt
• Your current mortgage is up for renewal - No penalty applies at renewal, making this the ideal time to refinance
• You want rate certainty - Locking in a fixed rate protects you from future rate increases
• You want to extend your amortisation - Refinancing lets you reset to a 25 or 30-year amortisation, lowering your monthly payment
• Your HELOC room is insufficient - Refinancing allows up to 80% LTV vs. 65% for a standalone HELOC

If your mortgage is within 120 days of renewal, many lenders allow you to renegotiate without penalty. This is the optimal window for refinancing.

When a HELOC Makes More Sense

A HELOC is typically the better choice when:

• You need funds in stages - Home renovations where invoices come over months, or ongoing investment contributions
• You want an emergency fund - Having an approved HELOC costs nothing until you draw on it
• Your current mortgage has a large penalty - Avoiding a $15,000+ penalty makes the HELOC more economical
• You plan to repay quickly - HELOC interest-only payments keep costs low while you repay the principal on your own schedule
• You are using the Smith Manoeuvre - This tax strategy involves using a HELOC to invest, making the interest tax-deductible, and works best with the revolving nature of a HELOC

Tax Implications for Investment Use

In Canada, mortgage interest is generally not tax-deductible for your primary residence. However, if you borrow funds (through either refinancing or a HELOC) and use those funds for investment purposes, the interest on that portion may be deductible.

Key rules:

• The borrowed funds must be used to earn income from a business or property
• You must be able to trace the borrowed funds directly to the income-producing investment
• Interest on funds used for personal purposes (renovations, vacations, debt consolidation) is not deductible
• The Canada Revenue Agency requires clear documentation showing the direct link between the borrowed funds and the investment

This applies equally to refinanced mortgage funds and HELOC draws. The tax treatment depends on how you use the money, not on which product you use to borrow it.

Making Your Decision: A Quick Framework

Ask yourself these three questions:

1. How much do you need? If more than 65% LTV, refinancing is your only option.
2. When is your mortgage up for renewal? If within 120 days, refinance at renewal to avoid penalties.
3. Do you need it all at once or over time? Lump sum favours refinancing. Staged access favours a HELOC.

If you are still unsure, a mortgage broker can model both scenarios with your actual numbers, including penalties, rates, and total cost of borrowing over the time horizon you are planning for.

Talk to The Mortgage World

Accessing your home equity is a significant financial decision, and the wrong choice can cost you thousands. At The Mortgage World, we analyse both options side by side with your real numbers, so you can make an informed decision.

Whether you are looking to renovate, consolidate debt, invest, or simply create a financial safety net, we will find the most cost-effective way to access your equity.

Explore refinancing options or learn about second mortgage solutions.

References

• FCAC - Home Equity Lines of Credit: https://www.canada.ca/en/financial-consumer-agency/services/mortgages/home-equity-line-credit.html
• Bank of Canada - Interest Rates: https://www.bankofcanada.ca/rates/
• FCAC - Mortgage Prepayment Penalties: https://www.canada.ca/en/financial-consumer-agency/services/mortgages/prepayment-penalty.html
• CRA - Interest Deductibility: https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-return/completing-a-tax-return/deductions-credits-expenses/line-22100-carrying-charges-interest-expenses.html