The short answer: paying only the minimum on a $5,000 balance at 20 percent APR takes roughly 18 to 22 years to clear and costs $5,900 to $7,200 in interest, based on modeled debt profiles using the standard 2 to 3 percent minimum payment formula used by the Big Five Canadian banks. Adding $50 above the minimum cuts that timeline roughly in half. Adding $400 closes the card in under a year and a half.
The Financial Consumer Agency of Canada has tracked credit card minimum payment formulas since 2014. Per the FCAC's Canadian Financial Capability Survey, fewer than 35 percent of cardholders know how the minimum is calculated. More than 40 percent of revolvers default to paying it because the statement figure feels like the recommended amount. It is not. It is the floor.
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How the Big Five Set the Minimum Payment
Per the Canadian Bankers Association and individual cardholder agreements, Royal Bank of Canada, Scotiabank, CIBC, TD, and BMO use one of two minimum payment formulas. The first is interest plus fees plus 1 percent of principal. The second is a flat 2 to 3 percent of the statement balance, whichever is greater, with a $10 floor on very small balances.
The result is the same in practice. The minimum is mostly interest, with a small principal slice that shrinks as your balance shrinks. On a $5,000 balance at 20 percent APR, the minimum in month one is roughly $135 to $150. About $83 of that is interest. Roughly $52 to $67 is principal. Next month, your balance is $4,948, so the minimum drops to about $134, with slightly less interest and slightly more principal. The numbers tilt by a few cents per month. The overall ratio barely moves for years.
This is the mechanism behind the trap explained in the minimum payment trap: a payment formula that auto-adjusts downward as you pay creates a curve that flattens out long before the balance reaches zero. Compounding works against you on the way in and works against you again on the way out.
The Worked Math: $5,000 at 20% APR
Based on modeled debt profiles using the standard 2 to 3 percent Canadian minimum payment formula at 20 percent APR with daily compounding, a $5,000 starting balance follows a predictable curve. The minimum-only timeline lands between 18 and 22 years. The total interest cost lands between $5,900 and $7,200. The breakdown shows where the inflection points sit.
| Monthly Payment | Time to Pay Off | Total Interest Paid |
|---|---|---|
| Minimum (2.5% formula, drops over time) | ~20 years | ~$6,400 |
| $150 fixed | ~4.5 years | ~$2,400 |
| $200 fixed | ~3 years | ~$1,500 |
| $300 fixed | ~1.7 years | ~$830 |
| $500 fixed | ~11 months | ~$520 |
*Based on modeled debt profiles, $5,000 starting balance, 20 percent APR with daily compounding, no new charges.
The non-linearity is the part that surprises most people. Going from the minimum to $150 fixed cuts the timeline by roughly 75 percent and the interest cost by roughly 60 percent. Doubling that to $300 cuts the remaining timeline by another 60 percent. Each additional dollar above the minimum compounds because it goes entirely to principal, which lowers the next month's interest charge, which lets even more of the next dollar reach principal.
The Average Canadian Balance Math
The average Canadian credit card balance carrying a revolving rate sits near $4,200 per cardholder, per Statistics Canada and TransUnion Canada. At a typical 19.99 percent APR with the standard 2.5 percent minimum payment formula, the payoff timeline on this balance is roughly 17 years and the total interest cost is roughly $5,100, based on modeled debt profiles.
Most Canadian cardholders who carry a balance underestimate this number by roughly an order of magnitude. When asked, the typical guess is two to four years. The actual figure is closer to two decades. The disconnect comes from intuition: a payment of $105 against a $4,200 balance feels like four percent, which feels like it should clear the card in 25 months. The math does not work that way because compounding interest is recalculated daily on the new balance.
The "Add $50" Inflection Point
The biggest move on a Canadian credit card is adding a fixed $50 to your minimum payment, set as an automatic transfer. Based on modeled debt profiles, $50 above the minimum on a $5,000 balance at 20 percent APR cuts the payoff timeline from 20 years to 8 years. The interest cost drops from $6,400 to $2,800.
The reason $50 is the inflection point is mechanical, not psychological. Most Canadian credit card minimum formulas allocate the entire principal slice from the minimum payment, then ask for an additional 2 to 3 percent of the balance. A $50 add-on is roughly equal to the full principal slice that the minimum was already paying. You are doubling your principal payment for the cost of one dinner out per month.
If you can add $200 instead, the timeline drops to under three years on the same $5,000 balance. If your budget allows $400, the card closes in roughly 14 months. The relationship is convex. Each marginal dollar above the minimum has more impact than the dollar before it.
When You Should Pay More Than the Minimum
The Office of the Superintendent of Financial Institutions has flagged consumer credit card debt as a growing systemic risk in Canada since 2023. The supervisory guidance from OSFI to Canadian banks has emphasized borrower-side hardship indicators. The borrower-side response in 2026 is straightforward: any spare cash above an emergency-fund floor is correctly directed at the highest-rate card on your stack.
The decision tree for most Canadian borrowers is short. If your APR is above 15 percent and you have any cushion above a starter emergency fund of around $1,000, you almost certainly come out ahead by directing extra cash at the card before any other debt or savings goal except retirement matching. The math beats virtually every other return available to a retail investor in 2026 on a risk-adjusted basis.
The exceptions are narrow. If you are about to apply for a mortgage and need credit utilization under 30 percent for the underwriting period, balance-transfer logistics may matter more than raw payoff speed. If you are mid-bankruptcy proceedings, paying down unsecured credit card debt is rarely the right move. For everyone else, the answer is the same as the worked math: more than the minimum, by as much as your budget can absorb without strain.
Frequently Asked Questions
Based on modeled debt profiles, a $5,000 balance at 20 percent APR with the standard 2 to 3 percent minimum payment formula takes between 18 and 22 years to clear. The total interest cost is roughly $5,900 to $7,200, depending on which Big Five Canadian issuer's formula applies. Adding even $50 above the minimum cuts the timeline roughly in half.
Most Canadian issuers use one of two formulas. The first is interest plus fees plus 1 percent of the principal. The second is a flat 2 to 3 percent of the statement balance. The Big Five Canadian banks generally use a 2 to 3 percent flat formula, with a $10 floor on small balances. The result is the same in practice: the minimum is mostly interest, with a small sliver of principal.
The inflection point on most Canadian balances is roughly $50 to $100 above the minimum. Based on modeled debt profiles, adding $50 a month to a $5,000 balance at 20 percent APR cuts the payoff timeline from around 20 years to roughly 8 years. Adding $200 a month cuts it to under 3 years. The relationship is non-linear because the savings compound.
Most Canadian credit card minimum payment formulas are a flat percentage of the current statement balance. As your balance drops, the percentage shrinks proportionally. That is why naive minimum-only payoff timelines are so long. Each dollar of principal you pay reduces next month's required payment, which extends the total timeline if you only pay the new lower minimum.
Paying half your monthly minimum twice a month does not change the total interest meaningfully. Credit card interest is calculated on the average daily balance, so two half-payments on the same total reduce the daily balance for half the month. The savings on a $5,000 balance at 20 percent APR work out to roughly $20 to $40 per year, based on modeled debt profiles. The lever that actually moves the timeline is the total amount paid each month, not the frequency.
Yes. Royal Bank of Canada, Scotiabank, CIBC, TD, and BMO all let you set up an automatic fixed-dollar payment from your chequing account that is greater than the minimum due. The setting is in the credit card payment preferences page of your online banking. The fixed payment continues even when the calculated minimum drops, which is the default behaviour you want for an aggressive payoff plan.
Last reviewed: April 27, 2026. This article is reviewed monthly against current Canadian APR data, Big Five Canadian bank cardholder agreements, and Statistics Canada credit card balance figures. The next scheduled update is May 27, 2026.
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