Australians hold around $18.5 billion in credit card debt that is actively accruing interest, with the average balance among those who carry debt month to month sitting close to $5,800. That figure alone explains why so many people feel like they’re running just to stay still. The interest on that kind of balance, at typical rates above 20%, can consume hundreds of dollars every year without making a dent in what you actually owe. Here’s what you actually need to know.
If you’re carrying a balance, the smartest approach isn’t about finding the perfect rewards card or chasing points. It’s about understanding how the numbers actually work — and using the right tool for the situation you’re in. That might mean a balance transfer, a structured repayment plan, or simply knowing when to walk away from credit cards altogether. Understanding why most Aussies struggle with money is a good place to start.
How credit card interest actually works in Australia
The term you need to understand first is the interest-free period. Most cards offer up to 55 days interest-free on purchases if you pay your balance in full by the due date. The moment you carry even a dollar over, that grace period disappears on new purchases, and interest starts compounding from the transaction date. That’s the switch that turns a convenient payment tool into expensive debt.
What I tend to notice is that most people don’t realise how quickly the interest compounds. On a $5,000 balance at 20.99%, you’re paying about $87 a month just in interest. That’s over $1,000 a year — money that could be going into savings or super. The card feels like it’s helping with cash flow, but it’s actually draining it. Financial literacy isn’t optional when the numbers stack against you like this.
What carrying a balance really costs you
The real-world consequence of carrying credit card debt isn’t just the dollar amount. It’s the opportunity cost. Every dollar you send to the bank in interest is a dollar that can’t go toward an emergency fund, a house deposit, or investments. And because the interest rate is so high, the drag on your finances is disproportionate to the size of the debt.
Consider this: a $5,800 balance — the average for Australian revolvers — at 20.99% costs about $1,217 a year in interest. That’s more than many people save in a year. The RBA’s payments system data shows that total credit card debt has been rising again after years of decline, which suggests the problem isn’t going away on its own.
There’s also a demographic split worth noting. Younger Australians, particularly Gen Z and Millennials, are more likely to chase rewards points, with 69% of Gen Z spending an extra $990 per month to earn them, according to Money.com.au’s credit card statistics. That extra spending often ends up on the card, and if it’s not paid off in full, the rewards are worth far less than the interest paid.
What I’d weigh here is whether the convenience of a credit card is actually worth the risk. For someone who pays in full every month, a card with no annual fee is fine. But for anyone who’s carried a balance for more than two months in the past year, the card is probably costing more than it’s providing. The power of compounding works both ways — it can build wealth or deepen debt.
Where people go wrong with credit cards
Only paying the minimum
This is the most common mistake, and it’s the one the system is designed to encourage. Minimum payments are typically 2-3% of the balance, which sounds manageable. But on a $5,000 balance at 20.99%, that initial minimum of around $100 barely covers the interest. The debt shrinks so slowly that most people give up or assume it’s under control. The fix is to set a fixed payment amount — say $200 or $300 a month — and treat it like a non-negotiable bill. If you need help tracking your spending, a simple budget planner notebook can help you see where the money’s actually going.
Using balance transfers without a payoff plan
A balance transfer card with 0% interest for 24 months sounds like a free pass. But if you don’t divide the balance by the number of months and commit to that payment, you’ll end up with the same debt at a higher revert rate — often 22-25% — once the promo period ends. The transfer fee of 1-2% is still cheaper than interest, but only if you actually pay it off. Set a calendar reminder one month before the promo ends.
Chasing rewards while carrying debt
This is where the marketing works best. You earn points, you feel like you’re getting something back, but the interest you’re paying far exceeds the value of those points. The average rewards balance in Australia is around 49,447 points, worth about $200-$250 in gift cards. Meanwhile, a $5,000 balance at 20.99% costs over $1,000 a year. The math doesn’t add up.
Closing accounts the wrong way
Cutting up the card doesn’t close the account. An open account with a high limit still affects your borrowing power, and some lenders view available credit as potential debt. To close it properly, pay off the balance in full, call the bank, and get written confirmation that the account is closed. Simply stopping use isn’t enough.
→ Scroll right to see all columns
| Monthly Payment | Time to Pay Off $5,000 | Total Interest Paid |
|---|---|---|
| Minimum (starts ~$100) | ~32 years | $9,432 |
| $200 | 2 years 8 months | $1,319 |
| $300 | 1 year 7 months | $796 |
Heads up — some links on this page may earn me a small cut if you buy something. Doesn’t change the price for you, and I only link stuff that’s actually relevant.
How to use credit cards smartly and get out of debt
Calculate your real payoff number
Before you do anything else, work out what you actually owe and at what rate. Log into your online banking and write down the balance, the interest rate, and the minimum payment. Then use a credit card debt clock to see how long it’ll take at different payment levels. The goal is to find a monthly amount that clears the debt in under two years. If that number isn’t realistic, a balance transfer or personal loan might be worth exploring.
Use a balance transfer card the right way
If you have a balance of $3,000 or more and a clear path to paying it off within 12-24 months, a balance transfer card is worth considering. Divide the total balance by the number of months in the promotional period. That’s your monthly payment target. On $6,000 over 24 months, that’s $250 a month. Set up an automatic transfer for that amount. Don’t use the card for new purchases. The transfer fee of 1-2% is a fraction of what you’d pay in interest. A credit card payoff tracker can help you stay on top of your progress.
Switch to a debit card if you’re a revolver
If you’ve carried a balance for more than three months in the past year, the simplest fix is to stop using credit cards altogether. Switch to a Visa or Mastercard debit card that works everywhere your credit card does. You can still shop online, book travel, and pay bills — but you can only spend what you have. The ’emergency card’ concern is better addressed by building a $2,000-$3,000 emergency fund in a high-interest savings account. That fund costs you nothing in interest and is always available.
Know when rewards actually make sense
Rewards cards only work if you pay the balance in full every single month. If you ever carry a balance, the interest will wipe out any points value. Even then, the annual fee needs to be worth it. A card with a $200 annual fee needs you to earn at least that much in value from points, insurance, or perks. For most people spending under $3,000 a month, a no-fee card is the better choice. If you’re determined to maximise points, a rewards credit card calculator can help you compare the real value.
Frequently asked questions
Does a balance transfer hurt my credit score? ▾
What happens if I miss a payment during the 0% period? ▾
Can I transfer a balance from the same bank? ▾
Is it better to use a personal loan to pay off credit card debt? ▾
How much should I pay each month to avoid interest? ▾
What’s the best way to track my credit card spending? ▾
The smartest move is knowing when to stop
The most effective strategy for using credit cards isn’t about finding the perfect rewards program or timing a balance transfer perfectly. It’s about recognising when the card is working for you and when it’s working against you. If you’re carrying a balance, the smartest move is to stop using the card, set a fixed repayment amount, and treat that debt like an emergency. Once it’s gone, you can decide whether a card fits your life or whether a simple debit card is the better long-term tool. If this was useful, you might also want to read Financial Freedom at 30: Achievable Goals for Young Aussies.
Sources and Further Reading
Financial Independence: Your Step-by-Step Guide to Freedom — A practical roadmap for building wealth and breaking free from debt cycles.
Why Most Aussies Struggle with Money (and How to Break Free) — Explores the behavioural and structural reasons behind common money struggles.
SavingsMate (2026). Average Credit Card Debt Australia 2026. 🔗
Money.com.au (2026). Credit Card Statistics Australia. 🔗
Reserve Bank of Australia (2026). Payments System Statistics. 🔗
Australian Securities and Investments Commission (2026). Credit Card Debt Clock. 🔗
