Line of Credit vs Car Loan: Which One Should You Use for a Car?

A line of credit versus a car loan comes down to one thing: how you want to pay for something that loses value every year. A line of credit is revolving. You draw money, repay it, and the room refills, usually at a variable rate. A car loan is an instalment loan. You borrow a fixed amount for a set term and make the same payment each period, usually with the vehicle as security. The cheaper option depends on the rate you qualify for, whether the debt is secured, and how fast you will genuinely repay it.

One thing up front: LoanGoose is a loan matching and comparison service, not a lender. We don't set rates, we don't make credit decisions, and we don't promise outcomes. What follows is how both products work, so you can ask sharper questions before you sign.

What a line of credit actually is

A line of credit is a revolving account. The lender approves a limit, you draw what you need, and interest builds only on the outstanding balance. As you repay, the available room comes back. Most personal lines of credit carry a variable rate tied to the lender's prime rate, which tends to move when the Bank of Canada moves its policy rate (Bank of Canada — rates).

There are two flavours. An unsecured line relies on your credit history and income alone. A secured line is backed by an asset, most often your home. A home equity line of credit at a federally regulated lender is generally limited to 65% of the appraised property value, and total secured lending against the home is usually capped at 80% (FCAC — mortgages).

The catch with revolving credit is the minimum payment. It's often interest-only or close to it. That keeps the monthly number small, which feels great, and keeps the balance alive for years, which doesn't.

What a car loan actually is

A car loan is an instalment loan. You borrow a fixed amount, agree to a term, and repay principal plus interest on a set schedule. Payments are predictable. The loan is usually secured by the vehicle, so the lender can register a lien and repossess if you stop paying.

Because the car is collateral, a car loan is frequently priced lower than an unsecured line of credit. That's the trade: you give up flexibility and accept a lien in exchange for a lower rate and a built-in deadline. Both products are consumer credit, and the plain-language overview of personal loans is worth ten minutes before you compare offers (FCAC — personal loans).

Read the prepayment terms carefully. Some loans let you pay off early with no penalty. Others charge for it. Ask whether the loan is open or closed, and get the answer in writing.

Line of credit vs car loan, side by side

When a line of credit is the better tool

• You already hold one with room and a rate you understand.
• You're buying from a private seller and dealer financing isn't on the table.
• You can realistically clear the balance in a short stretch.
• You want to control the payment schedule yourself.
• You'd rather not have a lien registered against the car.

Now the caveat. If that line of credit is secured by your home, you're putting your housing on the line for a depreciating asset. That's a serious trade-off. And if you can only afford the minimum payment, you aren't really paying the car off. You're renting the debt.

When a car loan is the better tool

• You want the same payment every month.
• The rate is lower because the car secures the loan.
• You'd rather have a finish line than an open balance.
• You're buying from a dealer who arranges financing.
• You know from experience that you'd let a revolving balance sit.

The trade-offs are real: a lien on the vehicle, possible prepayment penalties, and the awkward early stretch where the car is worth less than what you owe. Cars depreciate fastest in the first while, so a small down payment or a shorter term helps you stay ahead of the curve.

The cost rules that apply to both

Canada has a hard ceiling on borrowing costs. Under s. 347 of the Criminal Code, the criminal rate of interest is 35% per year, calculated by a defined method that aggregates interest and certain charges. That provision has been in force since January 1, 2025 (Criminal Code s. 347 — criminal rate of interest).

Payday loans sit in their own box. Where a province operates a licensed payday lending regime, federal regulations cap the cost of borrowing at $14 per $100 advanced, and a province may set a lower cap. A payday loan is generally up to $1,500 for a term of 62 days or less (FCAC — payday loans). Quebec doesn't license payday lending, which effectively prohibits the model there. None of that is vehicle financing. Using a short-term product to buy a car is a bad idea, and stacking one on top of an existing car payment is worse.

Your credit file decides more than the product does

Canada has two national credit reporting bureaus, Equifax Canada and TransUnion Canada, and you can get a free copy of your credit report from each (FCAC — credit reports and scores). Pull both. They don't always match, and errors are fixable.

Insolvency history lingers. A consumer proposal stays on a credit report for three years after completion, or six years from filing, whichever comes first. A first bankruptcy stays for six years after discharge (Office of the Superintendent of Bankruptcy Canada). Only a licensed insolvency trustee can administer a consumer proposal or a bankruptcy, so anyone else offering to handle one isn't able to.

When you compare offers, ask for the cost of borrowing or the annual percentage rate, not just the monthly payment. A long term with a small payment can cost dramatically more overall, and that's where car buyers get hurt.

If something goes wrong

Consumer complaints about federally regulated financial institutions are handled by the Financial Consumer Agency of Canada (FCAC — complaints). Provinces license and supervise most other lenders, and each has a consumer protection office (FCAC — provincial and territorial regulators). Start with the lender's own complaint process, then escalate if you're not satisfied.

The short version

If you'll repay quickly, want flexibility, and already hold a line of credit at a rate you understand, revolving credit can work. If you want a fixed payment, a secured rate, and a deadline, a car loan usually wins. If you'd be tempted to make minimum payments indefinitely, don't finance a car with revolving credit. If you're juggling several debts at once, the FCAC's debt and borrowing hub is a sensible place to start before adding another one (FCAC — debt and borrowing).

For anything involving your home or a large balance, talk to a licensed professional — an accountant, a licensed insolvency trustee, or a non-profit credit counsellor — before you commit.

LoanGoose is a loan matching and comparison service, not a lender. The lowest rates are only available to the most qualified applicants.