Credit card vs line of credit in Canada: which to use

A credit card and a personal line of credit are both revolving credit you can borrow against again and again, but they behave very differently. A line of credit usually charges a lower interest rate and starts charging it the moment you withdraw money, while a credit card charges a higher rate but gives you an interest-free grace period and earns rewards. The right choice comes down to how fast you will repay, how much you need, and whether you pay your card in full each month.

Nothing here is financial advice. Confirm every rate and rule on the official issuer or lender agreement before acting.

The core difference: grace period vs immediate interest

This is the single most important distinction. On a credit card, federally regulated issuers must give you an interest-free grace period of at least 21 days on new purchases. As long as you paid your previous statement balance in full, new purchases do not accrue interest during that window, so a disciplined cardholder can borrow for free between statements.

A line of credit works the opposite way. According to FCAC, you pay interest on the money you borrow from the day you withdraw it, until you pay the balance back in full. There is no grace period. The day the funds hit your account, the meter is running.

That flips the usual intuition about which product is cheaper. A card you pay off every month costs nothing in interest, while a line of credit always costs something the moment you draw on it.

Interest rates: line of credit usually wins

When you do carry a balance, the rate matters, and here the line of credit normally comes out ahead. FCAC states that you usually pay a lower interest rate for a line of credit than for a credit card or a personal loan.

The trade-off is that a line of credit rate is usually variable, meaning it can move up or down over time, often tracking a lender prime rate. A credit card purchase rate is typically fixed and sits much higher, commonly around 19.99 to 22.99 percent for standard cards, with low-interest cards priced lower. Because the line of credit rate is variable, your cost can rise if rates climb, so the gap is not guaranteed to stay the same.

For a deeper look at how card interest is charged daily once you carry a balance, see our guide on how credit card interest works in Canada.

Rewards: cards only

Lines of credit are pure borrowing tools. They do not earn cash back, points, or travel perks. Rewards are a credit card feature, which is one reason cards are the better fit for everyday spending you pay off in full. If your goal is to earn on routine purchases, a rewards card you clear monthly beats a line of credit every time, because a line of credit would charge interest on the same spending with nothing back.

The flip side: chasing rewards only makes sense on a card you pay in full. A purchase rate near 20 percent erases the value of 1 to 5 percent in rewards in a matter of weeks.

Secured vs unsecured: HELOC and beyond

Lines of credit come in two forms. With a secured line of credit, you pledge an asset such as your home or car as collateral, and FCAC notes you may get a lower interest rate as a result. A home equity line of credit, or HELOC, is the most common secured type, backed by the equity in your home. With an unsecured line of credit, there is no collateral, so the rate is typically higher. Personal lines of credit and student lines of credit are common unsecured examples.

Most credit cards are unsecured. Secured credit cards exist mainly for building or rebuilding credit and require a cash deposit, which is a different purpose from a secured line of credit.

A key caution with secured borrowing: pledging your home means the lender can pursue that asset if you default, so the lower rate comes with real risk.

Side-by-side comparison

Feature	Credit card	Line of credit
Interest rate	Higher, usually fixed (often ~19.99 to 22.99% on standard cards)	Usually lower, usually variable
Grace period	Yes, at least 21 days on purchases if paid in full	None, interest from the day you withdraw
Rewards	Yes (cash back, points, travel)	No
Secured option	Mainly for rebuilding credit (cash deposit)	Common (HELOC, asset-backed), lower rate
Best for	Everyday spending paid in full each month	Larger or one-time costs repaid over time
Typical limit	Smaller	Can be larger

Figures for card rates are typical market ranges, not a quoted rate. Confirm your actual rate on your cardholder or lender agreement.

Your rights either way

Both products are covered by Canada's Financial Consumer Protection Framework. Federally regulated lenders must disclose, in your credit agreement or disclosure statement, the date interest starts being charged and details about any interest-free grace period, including when there is none. That means a line of credit agreement will spell out that interest starts at withdrawal, and a card agreement will spell out your grace period. Read the disclosure box before you sign.

When to use each

• Use a credit card when you spend day to day and pay the full balance by the due date. You get the grace period, rewards, and zero interest.
• Use a line of credit for a larger or one-time expense you will repay over several months, where the lower variable rate beats carrying a card balance.
• If you already carry card debt, a lower-rate line of credit can cut your interest cost, similar to the logic behind a balance transfer. Just remember the line of credit charges interest immediately and is easy to keep drawing on.
• Avoid the minimum payment trap on either product. Paying only the minimum stretches repayment for years and multiplies interest.

Whichever you choose, the math is driven by the rate and how fast you repay. Browse current options on our card listings or the low-interest category, and confirm the details on the official page before you apply.