HELOC vs Mortgage in Canada: Key Differences, Costs and When to Use Each

When it comes to HELOC vs mortgage Canada choices, the main difference is how you get and repay the money. A mortgage gives you one lump sum to buy or refinance a home, and you pay it down with regular principal and interest payments over many years. A HELOC (home equity line of credit) is a revolving credit line secured by your home, where you borrow only what you need, often pay interest only, and can borrow again after you repay.

Both are secured by your property, and both can be useful. The right choice depends on what you need the money for, how predictable you want your payments to be, and how much equity you already have.

If you already own a home and want flexible access to your equity, our team can walk you through HELOC options in Ontario, compare lenders for you and show what you may qualify for before you apply. This guide covers limits, rates, payments, risks and when each one fits best.

What Is a Mortgage?

A mortgage is a loan used to buy a property or to refinance one you already own. The lender pays out the full amount at closing, and your home is registered as security for the loan.

You repay it through regular payments that cover both interest and principal. Each payment chips away at the balance, so the loan is fully paid off by the end of the amortization period. Rates can be fixed or variable for a set term, often 5 years, and you renew at the end of each term. Many mortgages are amortized over 25 years, and since December 15, 2024, insured mortgages for all first-time buyers and for buyers of newly built homes can be amortized over 30 years.

What Is a HELOC?

A HELOC is a line of credit secured against the equity in your home. Equity is your home's value minus what you still owe on it. For example, a home worth $700,000 with a $400,000 mortgage has about $300,000 in equity.

With a HELOC, you get an approved credit limit. You can draw on it whenever you need, repay it, and draw on it again. You only pay interest on the amount you actually use, not on the full limit.

In Canada, HELOCs come in two main forms:

• Combined HELOC: Linked to your mortgage and set up with the same lender. Some of these are readvanceable, which means your available credit grows as you pay down your mortgage principal.
• Standalone HELOC: Independent of any mortgage. Paying down a mortgage does not raise the available credit.
   

HELOC vs Mortgage Canada: Side-by-Side Comparison

This table sums up the core difference between a HELOC and a mortgage.

How Much Can You Borrow With Each?

Mortgage limits

When you buy a home, the minimum down payment is 5% on homes priced at $500,000 or less. For homes between $500,000 and $1.5 million, it is 5% of the first $500,000 plus 10% of the portion above that. Homes priced at $1.5 million or more need at least 20% down. If you put down less than 20%, you will typically need mortgage loan insurance.

When you refinance, the limit drops. Lenders can usually lend up to 80% of your home's value, minus what you already owe.

HELOC limits

Under OSFI Guideline B-20, which applies to federally regulated lenders, the revolving HELOC portion is capped at 65% of your home's value. When a HELOC is combined with a mortgage, the total of both cannot go above 80% of the home's value. Any borrowing above the 65% mark must be paid down on a regular schedule, like a mortgage.

The Financial Consumer Agency of Canada (FCAC) puts it simply: you need more than 35% equity for a standalone HELOC, and at least 20% equity for a HELOC combined with a mortgage.

A quick example

Say your home is worth $800,000 and you owe $450,000 on your mortgage.

• 80% of value: $640,000 is the most you can borrow in total, across the mortgage and HELOC.
• Current mortgage: $450,000.
• Room for a combined HELOC: about $190,000, subject to your income, credit and the lender's approval.
   

HELOC vs Mortgage Rates in Canada

Mortgage rates: Fixed rates follow the bond market and stay the same for your whole term. Variable rates move with the lender's prime rate, usually with a discount or premium set when you sign.

HELOC rates: Almost all HELOCs carry a variable rate set at the lender's prime rate plus a margin. The FCAC notes that with a HELOC, your lender may change your interest rate at any time.

As of October 2026, the Bank of Canada's policy rate is 2.25%, held at every announcement so far this year, with the next decision set for October 28, 2026. RBC's prime rate is 4.45%. At that prime rate, a HELOC priced at prime plus 1% would cost 5.45%.

In most cases, a HELOC costs more than a mortgage, since lenders see revolving, interest-only credit as riskier. Your margin depends on your credit, income, equity and the lender.
 

How Payments Work

With a mortgage, your payment covers interest and principal from day one. The balance falls with every payment, and with a fixed rate, the amount stays the same for your whole term.

With a HELOC, your lender may only require interest each month. That keeps the payment low, but the FCAC warns that if you only pay the interest, you will not pay off the loan.

Here is how the same $50,000 balance compares at a 5.45% rate:

The HELOC looks cheaper each month, but after five years of interest-only payments you would still owe the full $50,000. You can test your own numbers with our mortgage payment calculator.

Can You Have a HELOC and a Mortgage at the Same Time?

Yes. This is common in Canada. Many homeowners have a regular mortgage plus a HELOC on the same property.

With a combined plan, both products are set up with the same lender. As you pay down the mortgage, a readvanceable setup makes that freed-up room available on the HELOC. A standalone HELOC from another lender is also possible, though less common. A broker at LendingHub mortgage brokerage can compare combined and standalone options across lenders.
 

Can a HELOC Replace a Mortgage?

A HELOC can replace a mortgage only in limited cases. It works best when your mortgage balance is small and you have a lot of equity.

Here is why it rarely makes sense as a full swap:

• Limit: The revolving portion is capped at 65% of your home's value, so a large mortgage will not fit.
• Cost: HELOC rates are usually higher than mortgage rates, so moving a mortgage onto a HELOC often costs more interest.

You can use a HELOC to pay off your mortgage only if the balance fits within the 65% revolving limit and your lender approves it. Some owners near the end of their mortgage do this with a small remaining balance. If your real goal is a lower rate or a large lump sum, refinancing your mortgage is often the better fit. Our HELOC vs refinance breakdown covers that choice in detail, including break-even costs.
 

What Can You Use Each One For?

A mortgage is built for buying or refinancing property. A HELOC can be used for almost anything.

Buying a home

A mortgage is the standard tool for buying a home. The FCAC notes a HELOC can be used instead of a mortgage to buy a home, but you need a larger down payment and more equity, and the rate may be higher. Some owners also use a HELOC on their current home toward a cottage or rental. Lenders have rules on borrowed down payments, so confirm before you count on this.

Renovations

A HELOC is often the better fit for renovations. Projects tend to be paid in stages, and with a HELOC you only pay interest on what you have drawn so far. For a large, fixed-cost project, a refinance with a set payment can keep you on track.

Debt consolidation

For large debts you want gone on a schedule, rolling them into a mortgage through a refinance gives you one payment that pays the balance down. A HELOC can also consolidate high-interest debt, but with interest-only payments, the debt can linger. If you choose a HELOC, set your own principal payments.

Investing

Drawing on a HELOC to invest adds real risk to your home. Our guide on using a HELOC to invest walks through the strategies and the trade-offs.
 

Risks of a HELOC vs a Mortgage

Both products put your home on the line. If you do not repay what you owe, your lender may take possession of your home.

HELOC risks:

• Rising rates: If prime goes up, your HELOC payment goes up with it. The FCAC notes this can make repayment hard, especially if you have drawn a large amount.
• Interest-only trap: Low payments make it easy to carry debt for years without reducing it.
• Easy access: A large open limit can tempt you to borrow more than you can repay.
• Less equity: A big HELOC balance reduces your equity, which can limit your options if you want to sell or move.

Mortgage risks:

• Prepayment penalties: Breaking a closed mortgage early usually costs the higher of three months' interest or an interest rate differential (IRD).
• Less flexibility: Paying more than your yearly prepayment privilege may trigger a penalty.
• Renewal risk: Your rate can be higher when your term ends and you renew.
   

Do You Need to Pass a Stress Test?

Yes, at a federally regulated bank. The FCAC says you must pass a stress test to qualify for a HELOC at a bank, which means proving you can afford payments at a qualifying rate.

For uninsured mortgages, OSFI sets the minimum qualifying rate at the greater of your contract rate plus 2%, or 5.25%. The lender will also look at your income, credit score, existing debts and an appraisal of your home.
 

HELOC vs Mortgage: Which One Should You Choose?

Is a HELOC better than a mortgage? Neither is better across the board. Use this checklist to match the product to your goal.

Choose a mortgage if:

• You are buying a home.
• You need a large lump sum for one purpose.
• You want a fixed payment and a clear payoff date.
• You want the lowest rate on a large balance.

Choose a HELOC if:

• You already own a home with good equity.
• You need money in stages, such as for a renovation.
• You want a backup fund you only pay for when you use it.
• You can repay quickly and handle a payment that moves with prime.

Many homeowners end up with both: a mortgage for the home and a HELOC for flexibility.
 

Frequently Asked Questions

What happens to a HELOC when you sell your home?

You must pay back your HELOC when you sell, because it is secured by the home. The balance is usually paid out of the sale proceeds at closing, along with your mortgage.

Do you have to make principal payments on a HELOC?

Not always. The FCAC says your lender may let you pay interest only, or a mix of principal and interest. Paying only interest will not reduce what you owe.

What fees come with setting up a HELOC?

The FCAC lists a home appraisal, legal fees to register the HELOC on your home and title search fees, and some lenders charge administration or monthly fees. Ask which fees apply.

Can I get a HELOC with a lender other than my mortgage lender?

Yes, through a standalone HELOC. A combined HELOC must be set up with the same lender that holds your mortgage. To move a HELOC to a new lender, you must pay it off and close it first.

Can I lower my HELOC credit limit?

Yes. The FCAC notes you can negotiate your limit and ask for a lower one, which can help you avoid borrowing more than you need.
 

Get the Right Mix of Mortgage and HELOC

A mortgage gives you structure and usually a lower rate for big borrowing. A HELOC gives you flexibility for changing needs.

If you are weighing a HELOC against a new mortgage or refinance, talk to a LendingHub mortgage agent. We will review your equity, compare lender options and explain the real cost of each path, so you can choose the setup that fits your plans.