HELOC vs Mortgage in Canada: Complete Comparison

Two Different Tools for Your Home Equity

A traditional mortgage and a home equity line of credit (HELOC) are both secured by your home, but they behave very differently. Understanding that difference is the key to choosing the right one — or using them together.

A mortgage is installment debt: you borrow a fixed amount up front and repay it on a set schedule of principal-and-interest payments over an amortization period, typically up to 25 or 30 years. A HELOC is revolving credit: you are approved for a limit, borrow only what you need, pay interest on the outstanding balance, and can pay it down and re-borrow as often as you like.

How Each One Works

The Mortgage

• A lump sum advanced at closing
• A fixed or variable rate for a set term, often five years, then renewed
• Structured payments that steadily reduce the balance
• Limited prepayment privileges, and a penalty if you break the term early

The HELOC

• A standing credit limit you draw on as needed
• Interest-only minimum payments are usually allowed
• Almost always a variable rate tied to the lender's prime rate
• Flexible: repay and reuse without reapplying

In Canada, a HELOC secured against your home is generally capped so the revolving portion does not exceed 65% of the property's value, and 80% when combined with a mortgage under the same registration.

Rates and Costs

Mortgage rates are typically lower than HELOC rates because the lender has a predictable repayment schedule. A HELOC's flexibility comes at a modest premium, and being variable, its rate moves whenever the Bank of Canada shifts the prime rate. If certainty of payment matters most to you, a fixed mortgage wins; if flexibility matters most, the HELOC earns its slightly higher rate.

When a Mortgage Fits Best

• You are purchasing a home and need the full amount at once
• You want predictable payments you can budget around
• You prefer to be steadily debt-free by a target date
• You want the lowest available rate on a large balance

When a HELOC Fits Best

• You are funding a project in stages, such as a renovation
• You want a standby source of funds for emergencies or opportunities
• Your income is irregular and you value flexible payments
• You are confident you will repay quickly and do not want a penalty for doing so

The Discipline Question

The HELOC's greatest strength — easy, reusable access to cash — is also its biggest risk. Because minimum payments can be interest-only, a balance can sit unpaid for years while the principal never shrinks. And because the rate is variable, rising rates increase your cost with little warning. A HELOC rewards borrowers who treat it with the same discipline as a mortgage and have a clear plan to pay the principal down.

Using Both Together

Many Canadians do not choose one or the other — they combine them. A readvanceable mortgage pairs a regular mortgage with a HELOC under one registration: as you pay down the mortgage principal, your available line of credit grows. This can be a powerful way to keep flexible access to your equity while still making steady progress on the mortgage itself.

Making the Right Call

The best choice comes down to how you will use the money, how much certainty you want in your payments, and how disciplined you will be with revolving credit. A quick conversation with a RateStreet broker can map your goals to the right structure — and, where it makes sense, show you how a mortgage and a HELOC can work side by side. Compare your options at RateStreet.ca before you commit.