HELOC vs Personal Loan: Which Is Right for a Second Home?

When you plan to buy a second property in Canada, you have several financing choices: a home equity line of credit (HELOC) secured against your current home, a mortgage on the new property, or a personal loan. Each option affects interest costs, monthly cash flow, tax treatment and borrowing capacity differently. Below is a clear comparison to help you weigh the pros and cons and decide which approach best matches your goals and finances.

Interest rates for a second home

HELOCs are typically priced at prime plus a modest margin—often around 0.5% to 1.0% above prime—so they track the lender’s prime rate. At today’s rates, that generally means HELOC interest will fall in the mid-single digits. By contrast, variable-rate mortgages are often offered at a discount to prime, and fixed-rate mortgages have their own competitive pricing. In many cases, a mortgage on the new property can be 1% to 2% cheaper in interest than a HELOC tied to your primary residence.

That difference matters: a 1% to 2% gap in interest can translate into thousands of dollars in annual savings on larger balances. If minimizing interest expense is a priority, a mortgage secured by the new property is often the more economical choice.

Consider how payments will affect your cash flow

HELOCs usually require interest-only monthly payments during the draw period, which keeps immediate payments relatively low. Mortgages, however, are amortized: you repay both principal and interest on a set schedule, so monthly payments are higher but reduce your outstanding balance over time.

The trade-off is straightforward: a HELOC can preserve short-term cash flow but may cost more in interest over the long run; a mortgage increases required monthly payments but lowers interest expense and builds equity faster. Review your budget carefully—can you comfortably absorb higher mortgage payments if you choose lower interest costs? If cash flow is tight, the flexibility of a HELOC may be appealing, but balance that with the potentially higher total interest cost.

Income tax when borrowing for a second property purchase

If you plan to rent the second property, the tax treatment of interest should influence your financing choice. Interest on debt used to earn rental income is generally tax-deductible. That means if you obtain a mortgage on the rental property, the interest is deductible against rental income along with other eligible expenses.

Similarly, if you use a HELOC on your primary home to buy a rental property, the interest on that HELOC is typically deductible because the borrowed funds were used for an income-earning purpose. The key test is the use of the borrowed money, not necessarily which asset secures the debt.

That said, borrowed funds secured by a rental property are not automatically deductible in every circumstance—deductibility depends on how the funds are used. For example, if you borrow against a rental property to renovate it, buy another rental, or otherwise invest in an income-producing asset, that interest is usually deductible. But if you use those proceeds for personal expenses—such as purchasing a car—the interest would not be deductible even though the loan is secured by the rental property.

If the new property is purely for personal use—like a cottage or vacation home—the interest is generally not tax-deductible unless you rent it out and meet the conditions for rental income.

Compartmentalizing your finances

There’s a psychological and organizational benefit to keeping debt tied to the asset it finances. A mortgage on the new property keeps that debt separate from your primary residence, which many homeowners find less stressful and easier to manage. Seeing a HELOC balance on your primary home can feel risky to some, while having the loan paired with the new property helps you track returns and expenses for that investment more clearly.

Your borrowing capacity has limits

An approved $400,000 HELOC suggests your lender believes you have significant equity, but borrowing capacity depends on both property value and your income. A mortgage on the new property could potentially allow you to borrow more, especially if rental income is factored into your income assessment. Lenders use combined criteria—loan-to-value ratios, debt service ratios and income—to determine how much you can borrow, so consult your bank or broker to see which structure maximizes your borrowing capacity.

The bottom line

Choosing between a HELOC and a mortgage for a second property depends on your priorities. If you want lower interest costs and can handle higher monthly payments, a mortgage on the new property is often the better financial choice. If you need payment flexibility and want to preserve short-term cash flow, a HELOC may suit you, especially if you plan to refinance later.

Tax treatment hinges on how you use the borrowed funds: debt used to earn rental income is generally tax-deductible, regardless of which asset secures the loan. Consider the psychological benefit of keeping debt tied to the asset, and discuss scenarios with your bank or mortgage broker to understand borrowing limits and repayment terms.

Finally, evaluate whether financing with savings instead of new debt makes sense for your long-term financial plan. Review the numbers, consult professionals as needed, and choose the option that aligns with your cash flow, risk tolerance and investment goals.

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