What is the average credit card interest rate in Australia?

Most standard Australian credit cards charge between 17% and 22% p.a., with 19.99% being extremely common. Low-rate cards typically charge 9–14% but often have annual fees and fewer rewards. Buy now, pay later alternatives (Afterpay, Zip) have their own fee structures. Always check your card's purchase rate on your statement, it may differ from the promotional rate you originally signed up for.

What happens if I only pay the minimum repayment?

Paying only the minimum is one of the most expensive ways to hold credit card debt. The minimum is typically 2% of your balance or $25, whichever is higher. On a $5,000 balance at 19.99%, a fixed $100 per month (the initial minimum as a set payment) takes 109 months and costs $5,830 in interest. With a truly diminishing minimum, where the repayment also shrinks as your balance falls, it can take several decades. Paying a fixed amount well above the minimum is significantly more effective.

Should I use a personal loan to pay off my credit card?

If you can get a personal loan at a significantly lower rate than your credit card (e.g. 8% vs 20%), a debt consolidation loan can save substantial interest and simplify repayments. The critical discipline: stop using the credit card after consolidating, otherwise you end up with both a personal loan and a new credit card balance. The loan is a tool; the discipline to leave the card unused is the actual solution.

Does paying off a credit card improve my credit score?

Yes. Your credit utilisation ratio (how much of your available credit you're using) is a significant factor in your Australian credit score (Equifax, Experian, or Illion). Keeping utilisation below 30% (ideally below 10%) of your limit generally improves your score. Paying off a $5,000 balance on a $10,000 limit card drops your utilisation from 50% to 0%, which can meaningfully lift your score within one or two reporting cycles.

Is it better to pay weekly instead of monthly?

Because Australian credit cards calculate interest daily, paying weekly or fortnightly reduces your average daily balance slightly, which means slightly less interest each month. On a $5,000 balance, the difference is relatively small (tens of dollars per year), but over a multi-year payoff it adds up. The bigger impact comes from paying more, not just paying more frequently.

What is a hardship variation and when should I ask for one?

If you're genuinely struggling to make repayments, Australian credit card issuers are required to consider hardship applications under the National Credit Code. You can apply for a temporary repayment reduction, interest freeze, or extended term. This won't damage your credit score when processed as a hardship variation rather than a default. Contact your bank's financial hardship team; they're required to respond within 21 days.

What is a balance transfer and can it help me pay off credit card debt?

A balance transfer lets you move your existing credit card debt to a new card, typically at 0% interest for a promotional period of 12 to 24 months. During that window, every repayment reduces the principal rather than covering interest, which can dramatically speed up payoff. To make it work: calculate whether the balance transfer fee (usually 1–3% of the transferred amount) is worth the interest you will save; commit to paying off the full balance before the promotional period ends; and do not make new purchases on the card, as these often accrue interest at the standard rate from day one. If the promotional period expires and a balance remains, the revert rate (commonly 21–22%), kicks in immediately. A balance transfer is a tool, not a solution; the discipline to repay aggressively during the 0% window is what makes it worthwhile.

Credit Card Payoff Calculator

Enter your balance, rate, and monthly payment to see your payoff date and total interest cost.

When to use

When you're carrying a credit card balance and want to know how long payoff will take and how much interest you'll pay.

Who it's for

Anyone with an outstanding credit card balance who wants to plan a payoff strategy or compare minimum vs higher payments.

What you'll need

Your current balance, annual interest rate, and the monthly payment amount you plan to make.

Credit card balance

Your current outstanding credit card balance.

Annual interest rate

Most Australian credit cards charge between 13% and 22% p.a. Check your statement for your card's rate.

Monthly repayment

How much you plan to pay each month. Must exceed the monthly interest charge to reduce your balance.

Extra monthly payment

Optional additional amount above your regular repayment. Even $50 extra per month can save hundreds in interest.

Assumes a fixed monthly repayment and a constant interest rate. Does not include annual fees or other charges. General guidance only — not financial advice.

Debt balance over time

How your credit card balance reduces — hover to inspect

Remaining balance

Line chart showing credit card balance reducing to zero over time
Period	Remaining balance
Start	$5K
Yr 1	$4K
Yr 2	$3K
Yr 3	$2K
Yr 4	$154

The faster the line drops, the more of each payment is going towards your principal rather than interest.

Interest vs principal paid

Cumulative interest paid vs debt repaid — hover to inspect

Cumulative interestPrincipal repaid

Line chart showing cumulative interest paid versus principal repaid over time
Period	Cumulative interest	Principal repaid
Start	$0	$0
Yr 1	$922	$878
Yr 2	$2K	$2K
Yr 3	$2K	$3K
Yr 4	$2K	$5K

As your balance shrinks, each monthly interest charge also shrinks, meaning more of every repayment goes towards clearing the debt.

How credit card debt works in Australia

Why minimum repayments cost so much

Australian credit card minimum repayments are typically 2% of the closing balance or $25, whichever is greater. On a $5,000 balance at 19.99%, the opening minimum is around $100, of which $83 is interest and only $17 reduces the debt. Because the interest charge is nearly the full repayment, compounding works against you: next month's interest is calculated on almost the same balance. Paying $100 fixed for 109 months costs $5,830 in interest, more than the original debt. Doubling to $200/month clears the same balance in 33 months at $1,521 in interest, a saving of over $4,300.

How credit card interest is calculated in Australia

Credit cards charge interest daily on your outstanding balance, but most statements show an annual rate (e.g. 19.99% p.a.). The daily rate is the annual rate divided by 365. Interest is calculated each day and added to your balance at the end of the statement period. If you pay the full closing balance by the due date, no interest is charged, this is the interest-free period. Once you carry any balance forward, interest applies from the transaction date on both the outstanding balance and new purchases.

Balance transfer cards: The real numbers

Balance transfer offers (0% for 12–24 months) can be a powerful debt-clearing tool, but only if you have a plan. The key: you must pay off the transferred balance before the promotional period ends, otherwise the revert rate (often 21–22%) kicks in on the remaining balance. Most cards also charge a balance transfer fee of 1–3% upfront. Always check whether purchases on the new card attract the 0% rate too (they usually don't).

The compounding trap on high-rate debt

At 19.99% p.a., every $1,000 sitting on your card costs roughly $16.60 per month in interest. If your repayment barely exceeds that charge, almost none of your money reduces the principal. The balance barely moves, so next month's interest is almost the same. This is the compounding trap: small repayments allow interest to compound at the full rate, while extra repayments break the cycle by reducing the principal that interest is charged on.

Debt repayment strategies

If you have multiple debts, how you allocate extra repayments matters. Two main strategies, avalanche and snowball, approach it differently.

Debt avalanche

Best if you want to minimise total interest

List all your debts. Pay the minimum on every debt except the one with the highest interest rate, throw every extra dollar at that one. Once it is cleared, redirect that full repayment to the next-highest-rate debt. This method is mathematically optimal: you destroy the most expensive debt first, so less of your money ever goes to interest.

Debt snowball

Best if you need motivation to stay on track

List all your debts by balance, smallest to largest. Pay minimums everywhere and direct all extra funds at the smallest balance first. Each payoff gives you a genuine win and frees up a repayment to roll into the next debt. Research shows the snowball method leads to higher completion rates for many people, even though it costs slightly more in interest than the avalanche. The best method is whichever one you actually stick to.

Worked examples

What $100 a month really means: $5,000 at 19.99% p.a.: The opening minimum payment on a $5,000 balance at 19.99% is around $100, of which $83 is interest and only $17 reduces the debt. Paying this fixed $100 every month takes 109 months (over 9 years) and costs $5,830 in interest, which is more than the original debt. Doubling to $200 per month clears the same balance in 33 months (under 3 years) and costs $1,521 in interest, a saving of $4,309 and more than six years of repayments. Even a modest increase above the minimum has a dramatic effect.
Default calculator scenario: $5,000 at 19.99%, $150/month with and without $100 extra: At $150 per month, a $5,000 balance at 19.99% takes 50 months (4.2 years) to clear and costs $2,357 in total interest. Adding $100 extra each month ($250 total) cuts this to 25 months (2.1 years) and reduces total interest to $1,132, saving $1,225 and clearing the debt two years earlier. Total outgoings also fall ($6,132 versus $7,357) because fewer months of repayments are needed. Paying more each month costs less overall.
High-rate balance: $8,000 at 20.99%, $200/month vs $350/month: At $200 per month, an $8,000 balance at 20.99% takes 70 months (nearly 6 years) to clear and costs $5,874 in interest, nearly 74% of the original debt in additional costs. Adding $150 extra ($350 per month total) cuts this to 30 months (2.5 years) and reduces interest to $2,305, saving $3,569 and clearing the debt 40 months sooner. On high-rate balances, extra repayments have a disproportionately large impact because a greater share of each payment goes toward reducing principal rather than covering interest.

Common mistakes with credit card debt

Paying only the minimum each month
The credit card minimum is designed to keep you in debt longer, as most of each payment covers interest rather than reducing the balance. On a $5,000 balance at 19.99%, a truly diminishing 2% minimum (where the repayment also shrinks as the balance falls) can take several decades to clear and cost more in interest than the original debt. Paying a fixed amount, even modestly above the initial minimum, makes a large difference.
Adding new purchases while carrying a balance
Many Australians assume the interest-free period applies even when carrying a balance. Once you carry any balance from month to month, interest accrues on new purchases from the transaction date, not the statement date. Continuing to spend on a card while making repayments means new interest can outpace the progress of your repayments.
Treating a balance transfer as the solution rather than a tool
A 0% balance transfer gives you time, not a resolution. If you don't clear the transferred balance before the promotional period ends, the revert rate applies to whatever remains. Many people end up worse off after a balance transfer because they stopped focusing on repayment once the rate dropped to 0%, then faced a 21–22% rate on a balance they hadn't reduced enough.
Ignoring the purchase rate when choosing a card
Rewards points can be valuable but they are irrelevant if you carry a balance. A card charging 19.99% generates far more in interest costs than it returns in rewards for anyone who doesn't repay in full each month. If you carry a balance, the purchase rate is the only number that matters, compare it directly across cards.
Misunderstanding the interest-free period
The interest-free period (typically 44–55 days in Australia) only applies when you pay the full closing balance by the due date. It is all-or-nothing: carry even $1 forward and you lose the grace period on all new purchases. Partial repayment does not preserve a partial grace period.
Stopping extra repayments when finances improve temporarily
Extra repayments have compound effects on credit card debt: each extra dollar reduces the balance, which reduces the next month's interest charge, which means more of the regular repayment goes to principal. Breaking this momentum when extra funds become available wastes the accumulated benefit. Consistent extra repayments, even small ones, outperform irregular large ones.

Frequently asked questions

What is the average credit card interest rate in Australia?: Most standard Australian credit cards charge between 17% and 22% p.a., with 19.99% being extremely common. Low-rate cards typically charge 9–14% but often have annual fees and fewer rewards. Buy now, pay later alternatives (Afterpay, Zip) have their own fee structures. Always check your card's purchase rate on your statement, it may differ from the promotional rate you originally signed up for.
What happens if I only pay the minimum repayment?: Paying only the minimum is one of the most expensive ways to hold credit card debt. The minimum is typically 2% of your balance or $25, whichever is higher. On a $5,000 balance at 19.99%, a fixed $100 per month (the initial minimum as a set payment) takes 109 months and costs $5,830 in interest. With a truly diminishing minimum, where the repayment also shrinks as your balance falls, it can take several decades. Paying a fixed amount well above the minimum is significantly more effective.
Should I use a personal loan to pay off my credit card?: If you can get a personal loan at a significantly lower rate than your credit card (e.g. 8% vs 20%), a debt consolidation loan can save substantial interest and simplify repayments. The critical discipline: stop using the credit card after consolidating, otherwise you end up with both a personal loan and a new credit card balance. The loan is a tool; the discipline to leave the card unused is the actual solution.
Does paying off a credit card improve my credit score?: Yes. Your credit utilisation ratio (how much of your available credit you're using) is a significant factor in your Australian credit score (Equifax, Experian, or Illion). Keeping utilisation below 30% (ideally below 10%) of your limit generally improves your score. Paying off a $5,000 balance on a $10,000 limit card drops your utilisation from 50% to 0%, which can meaningfully lift your score within one or two reporting cycles.
Is it better to pay weekly instead of monthly?: Because Australian credit cards calculate interest daily, paying weekly or fortnightly reduces your average daily balance slightly, which means slightly less interest each month. On a $5,000 balance, the difference is relatively small (tens of dollars per year), but over a multi-year payoff it adds up. The bigger impact comes from paying more, not just paying more frequently.
What is a hardship variation and when should I ask for one?: If you're genuinely struggling to make repayments, Australian credit card issuers are required to consider hardship applications under the National Credit Code. You can apply for a temporary repayment reduction, interest freeze, or extended term. This won't damage your credit score when processed as a hardship variation rather than a default. Contact your bank's financial hardship team; they're required to respond within 21 days.
What is a balance transfer and can it help me pay off credit card debt?: A balance transfer lets you move your existing credit card debt to a new card, typically at 0% interest for a promotional period of 12 to 24 months. During that window, every repayment reduces the principal rather than covering interest, which can dramatically speed up payoff. To make it work: calculate whether the balance transfer fee (usually 1–3% of the transferred amount) is worth the interest you will save; commit to paying off the full balance before the promotional period ends; and do not make new purchases on the card, as these often accrue interest at the standard rate from day one. If the promotional period expires and a balance remains, the revert rate (commonly 21–22%), kicks in immediately. A balance transfer is a tool, not a solution; the discipline to repay aggressively during the 0% window is what makes it worthwhile.

How this calculator works

Enter your current balance, interest rate, and monthly repayment. Each month, interest is calculated on the outstanding balance at the annual rate divided by twelve, and your repayment reduces what remains. The cycle repeats until the balance hits zero, that month is your payoff date. The total interest figure is the sum of all interest charges across every month of repayment.

The calculator assumes no new purchases are added during the repayment period. In practice, if you continue using the card, the balance resets upward each month and the actual payoff date will be longer than the estimate. To use this tool accurately, either stop using the card while paying it down, or run the numbers on your current average balance rather than a single snapshot figure.

The most powerful use of this calculator is to compare two monthly repayment amounts side by side. The difference in total interest and months saved is often surprisingly large, increasing a repayment by $100 per month on a $5,000 balance can cut the payoff time by more than a year and save hundreds in interest.

Methodology

Assumptions: Fixed interest rate applied monthly to the outstanding balance; fixed monthly repayment; no new purchases during the repayment period.
Calculation: Monthly interest = balance × (annual rate ÷ 12); balance reduced each month; payoff month recorded when balance reaches zero.
Limitations: Does not model annual fees, promotional 0% periods, or the impact of minimum-only repayments after a balance transfer.

Sources

ASIC MoneySmart — Credit cards

Last updated: July 2026