How to Get Out of Debt in Australia: Avalanche vs Snowball and What Actually Works (2026)
Australians collectively owe over $20 billion in credit card debt alone — and that's before personal loans, car finance, HECS-HELP, and buy-now-pay-later. If you're juggling multiple debts, the path out can feel impossible. It isn't. This guide covers the two proven repayment strategies, shows you exactly how much each one saves, and walks through the specific types of debt Australians carry — so you can build a plan that actually works.
This guide is general information only. If you're experiencing financial hardship, contact the National Debt Helpline on 1800 007 007 — it's free, confidential, and staffed by qualified financial counsellors.
Why Debt Reduction Matters More Than Investing (When You Have High-Interest Debt)
Paying off a credit card charging 20% interest is the same as earning a guaranteed, tax-free 20% return on your money. No investment can reliably match that. Every dollar you put towards high-interest debt is a dollar that stops working against you — permanently.
This doesn't mean you should stop all investing. Employer super contributions and salary-sacrifice arrangements that attract tax benefits may still make sense. But discretionary investing while carrying 15%–22% credit card debt is almost always a net loss.
The real cost of minimum repayments
A $10,000 credit card balance at 20% interest, paying only the minimum (2% of balance or $25, whichever is greater), takes over 30 years to repay and costs $19,000+ in interest — nearly double the original debt. Increasing your repayment to $300/month clears it in 3 years 10 months and costs $3,800 in interest.
The Two Proven Strategies: Avalanche vs Snowball
Every effective debt repayment plan uses one of two approaches. Both work. The difference is whether you optimise for mathematics or motivation.
1The Avalanche Method (Lowest Total Cost)
Pay minimum repayments on all debts, then direct every spare dollar to the debt with the highest interest rate. When it's paid off, roll that payment into the next highest rate, and so on.
Best for: People motivated by numbers and saving the most money overall. This method always results in the lowest total interest paid.
2The Snowball Method (Fastest Wins)
Pay minimum repayments on all debts, then direct every spare dollar to the debt with the smallest balance. When it's paid off, roll that payment into the next smallest balance, and so on.
Best for: People who need quick wins to stay motivated. Eliminating a debt entirely — even a small one — creates momentum. Research from Harvard Business School found that people using the snowball method were more likely to become debt-free because of this psychological effect.
Avalanche vs Snowball: Real Numbers
Let's compare both methods using a realistic set of Australian debts. Assume you have $800/month total to put towards debt repayment (above minimums):
| Debt | Balance | Interest Rate | Min. Repayment |
|---|---|---|---|
| Credit card A | $6,500 | 21.99% | $130 |
| Credit card B | $2,200 | 19.99% | $55 |
| Personal loan | $12,000 | 12.50% | $270 |
| Car loan | $8,500 | 8.99% | $200 |
| BNPL balance | $900 | 0% (if on time) | $75 |
| Total | $30,100 | — | $730 |
Avalanche Order
- Credit card A (21.99%)
- Credit card B (19.99%)
- Personal loan (12.50%)
- Car loan (8.99%)
- BNPL (0%)
Total interest paid: ~$4,900
Debt-free in: ~2 years 9 months
Snowball Order
- BNPL balance ($900)
- Credit card B ($2,200)
- Credit card A ($6,500)
- Car loan ($8,500)
- Personal loan ($12,000)
Total interest paid: ~$5,600
Debt-free in: ~2 years 11 months
The avalanche method saves about $700 in interest and gets you debt-free two months sooner. But both methods crush the debt in under three years — compared to 10+ years of minimum repayments. The best method is the one you'll stick with.
How to Handle Each Type of Australian Debt
Credit Cards (15%–22%)
Credit card debt is almost always the first priority. The interest rates are punishing and compound daily. Here are the key moves:
- Balance transfer: Many Australian banks offer 0% balance transfer promotions for 12–28 months. Transfer your balance, set up a fixed repayment plan to clear it within the promotional period, and cut up the old card. Be aware of balance transfer fees (typically 1%–3%) and the revert rate (often 20%+).
- Reduce the limit: Once you've paid down a portion, reduce your credit limit immediately. Lenders assess your credit limit (not your balance) when calculating borrowing power for home loans. A $15,000 limit reduces your borrowing capacity by approximately $45,000–$54,000 — even if the card has a zero balance.
- Cancel cards you don't need: Every open credit card counts against you in serviceability assessments. Close accounts once paid off unless you have a specific reason to keep them.
Personal Loans (7%–15%)
Personal loans typically have fixed repayments and a defined end date, which makes them more manageable than revolving credit card debt. Check your loan contract for:
- Early repayment fees: Some lenders charge a fee for paying off the loan ahead of schedule. If the fee is small relative to the interest you'd save, pay it off early anyway.
- Redraw or extra repayment options: If your loan allows extra repayments without penalty, make them. Every additional dollar reduces the principal and therefore the interest charged.
Car Loans (6%–12%)
Car loans are secured against a depreciating asset. The car loses value while you pay interest on it. If you owe more than the car is worth ("negative equity"), you're effectively paying interest on money that's already evaporated.
If your car loan rate is above 8%, check whether refinancing to a lower rate personal loan or car loan makes sense — but only if the savings outweigh any break costs and fees.
Buy Now, Pay Later (0% — Until It Isn't)
BNPL services like Afterpay and Zip charge 0% interest if you pay on time, but late fees add up fast. More importantly, BNPL encourages spending money you don't have. From June 2025, BNPL providers are regulated under Australian credit law, meaning they must conduct affordability assessments — but the core risk remains behavioural.
Clear any outstanding BNPL balances and consider deleting the apps. If you can't afford to buy it outright, you probably can't afford it on BNPL either.
HECS-HELP (Indexed to CPI)
HECS-HELP is unique among Australian debts. It has no interest — instead it's indexed to the Consumer Price Index (CPI) each 1 June. In years of high inflation (like 2022–2024), indexation added 3%–7% to balances. In normal years, it's 2%–3%.
Because HECS carries no interest above CPI, it's technically your cheapest debt. The compulsory repayment thresholds for 2025–26 start at $54,435 of income, with rates from 1% scaling up to 10% at higher incomes.
Should you voluntarily repay HECS faster?
Usually no. Since HECS only tracks CPI (not a commercial interest rate), you're better off directing extra money towards higher-interest debts, super contributions, or investments that return more than inflation.
The exception: if you're close to a borrowing power limit for a home loan, paying down HECS can increase your capacity by approximately $4,200–$8,400 per $10,000 of HECS repaid (because it reduces compulsory repayments that lenders deduct from your income).
The Debt Consolidation Question
Debt consolidation means combining multiple debts into a single loan — usually a personal loan at a lower blended rate. It can work well if:
- The consolidated rate is meaningfully lower than your current weighted average rate
- You commit to a fixed repayment schedule that clears the debt faster than your current trajectory
- You close the credit cards and accounts you consolidated from — so you don't re-accumulate debt on top of the consolidation loan
Consolidation fails when people treat it as a fresh start and keep spending on the now-empty credit cards. This doubles the problem.
Warning: Don't consolidate into your mortgage
Rolling $20,000 of credit card debt into a 30-year mortgage at 6.5% sounds attractive because the repayments drop. But you end up paying $45,000+ for that $20,000 debt over three decades. The lower rate is an illusion — the dramatically longer term destroys the savings.
A Step-by-Step Debt Reduction Plan
Step 1: List every debt
Write down every debt you owe — balance, interest rate, minimum repayment, and lender. Include credit cards, personal loans, car loans, BNPL, HECS, and anything else. You can't build a plan without knowing the full picture.
Step 2: Build a bare-bones budget
Track your actual spending for one month. Separate needs (rent, food, transport, utilities) from wants (eating out, subscriptions, impulse purchases). Calculate how much you can realistically direct to debt repayment above the minimums.
Step 3: Choose avalanche or snowball
If you're motivated by maths and optimisation, use avalanche. If you need quick wins and momentum, use snowball. Both work. Do not overthink this — picking one and starting today matters more than picking the "perfect" one.
Step 4: Automate payments
Set up automatic transfers on payday — before you have a chance to spend the money. Pay minimums automatically on all debts, then direct the extra to your target debt. Automation removes willpower from the equation.
Step 5: Attack one-off windfalls
Tax refunds, bonuses, birthday money, and side-hustle income should go straight to debt. A $3,000 tax refund thrown at a 21% credit card saves $630 in interest in the first year alone.
Step 6: Close paid-off accounts
When a credit card or BNPL account is cleared, close it. Reducing available credit removes temptation and improves your borrowing power for future goals like a home loan.
How Debt Affects Your Ability to Buy a Home
If homeownership is on your radar, understanding how lenders view your debt is critical. Australian banks assess debt impact in two ways:
Credit Card Limits
Banks assume you could draw your entire credit limit at any time. They multiply your total limit by approximately 3%–3.6% per month to calculate a notional repayment — regardless of your actual balance.
Example: A $10,000 credit card limit (even with a $0 balance) reduces borrowing power by approximately $30,000–$36,000.
Existing Loan Repayments
Every dollar committed to existing loan repayments (personal loans, car loans, BNPL) is a dollar the bank deducts from your available surplus. A $500/month car loan can reduce your borrowing power by $75,000–$85,000.
This is why clearing debt before applying for a home loan can make a dramatic difference. Paying off $20,000 in consumer debt might increase your borrowing capacity by $80,000–$120,000.
When to Seek Professional Help
There's no shame in asking for help. Consider reaching out if:
- You're consistently unable to make minimum repayments
- You're borrowing from one source to pay another
- Debt collectors are contacting you
- The stress is affecting your mental health or relationships
Free resources in Australia
- National Debt Helpline: 1800 007 007 (free, confidential financial counselling)
- MoneySmart (ASIC): moneysmart.gov.au — calculators, guides, and tools for managing debt
- Hardship provisions: All major Australian lenders are legally required to offer hardship assistance if you're struggling to make repayments. Call your lender and ask for the hardship team.
The Bottom Line
Debt reduction isn't complicated — it's uncomfortable. The maths is simple: list your debts, pick a strategy, direct every spare dollar to the target, and repeat. The hard part is changing spending habits and staying consistent for months or years.
But here's the upside: every debt you eliminate permanently increases your cashflow, reduces your financial risk, and brings you closer to goals like homeownership or financial independence. The person who clears $30,000 in consumer debt has effectively given themselves a $5,000–$6,000/year pay rise — tax-free.
Start today. List your debts. Pick a method. Set up the automation. The best time to start was years ago. The second best time is right now.
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