Credit Score Australia: How It Works, What's Good & How to Improve Yours
Everything you need to know about credit scores in Australia. Score ranges for Equifax, Experian and illion, what affects your score, how to check for free, and proven strategies to improve it.
Credit score ranges: Equifax, Experian & illion explained
Australia has three main credit bureaus, and each uses a different scoring scale. Equifax (formerly Veda) uses a 0-1,200 scale: 0-505 is below average, 506-665 is average, 666-755 is good, 756-840 is very good, and 841-1,200 is excellent. Most Australians sit between 550 and 750. Experian uses a 0-1,000 scale: 0-549 is below average, 550-624 is fair, 625-699 is good, 700-799 is very good, and 800-1,000 is excellent. illion (formerly Dun & Bradstreet) uses a 0-1,000 scale with similar brackets. Confusingly, a score of 700 means different things at each bureau — it is 'very good' on Experian but merely 'good' on Equifax. When checking your score, always note which bureau generated it. Lenders typically check one or two bureaus, and your score may differ between them because not all creditors report to all three. For home loan applications, most major banks use Equifax as their primary bureau, though they may cross-check with others for larger loans.
What actually affects your credit score in Australia
Under comprehensive credit reporting (CCR), which has been fully implemented in Australia since 2022, your credit score is influenced by several factors. Repayment history is the biggest factor — accounting for roughly 35-40% of your score. Every credit account (credit card, personal loan, mortgage, BNPL, phone plan) now reports monthly on whether you paid on time, and even a single missed payment can drop your score by 50-100 points. Credit applications (enquiries) make up around 20-25% — each time you apply for credit, a 'hard enquiry' is recorded. Multiple applications in a short period signal desperation to lenders. The length of your credit history matters too — older, well-maintained accounts boost your score. Your credit utilisation — how much of your available credit you are actually using — is increasingly factored in. Using more than 30% of your credit card limit negatively affects your score. Defaults (payments more than 60 days overdue and over $150) remain on your file for 5 years. Bankruptcies and court judgments stay for 5-7 years. Notably, your income, savings balance, and employment status are NOT directly part of your credit score — though lenders assess these separately.
How to check your credit score for free
Every Australian has the right to access their credit report for free once every 12 months from each bureau — or at any time if you have been refused credit in the last 90 days. You can request your free report directly from Equifax (equifax.com.au), Experian (experian.com.au), and illion (illion.com.au). The free report includes all the data but not always a numerical score. For a free score, several services provide ongoing access: CreditSavvy (owned by Westpac) provides your Experian score for free with monthly updates; Finder provides a free Experian score; ClearScore provides free Equifax scores; and Canstar also offers free credit score checks. These services are genuinely free — they make money through referral commissions when you apply for financial products through their platform, not by charging you. When you check your own score through these services, it is recorded as a 'soft enquiry' that does not affect your score. Review your credit report at least annually to check for errors — ASIC estimates that one in five Australian credit reports contain at least one error, and disputing inaccuracies can improve your score immediately.
How to improve your credit score: proven strategies
Improving your credit score is a marathon, not a sprint, but these strategies work. First, set up direct debits or automatic payments for every credit account to ensure you never miss a payment — repayment history is the single biggest factor. Even utility bills and phone plans now report missed payments. Second, reduce your credit card limits. If you have a $15,000 limit but only use $3,000, lenders see $15,000 of potential debt. Call your bank and reduce the limit to $5,000 — this also improves your borrowing power for home loans. Third, space out credit applications. Each application creates a hard enquiry that stays for 5 years. If you are rate-shopping for a home loan, try to submit all applications within a 14-day window — some scoring models treat clustered mortgage enquiries as a single event. Fourth, keep old accounts open. The length of your credit history helps your score, so closing your oldest credit card can actually hurt you. Fifth, dispute any errors on your report — incorrect defaults, accounts that are not yours, or duplicate listings. Bureaus must investigate and respond within 30 days. Most people can improve their score by 50-100 points within 6-12 months by following these fundamentals consistently.
Credit score myths Australians need to stop believing
Several persistent myths about credit scores lead Australians astray. Myth: checking your own score lowers it. Fact: self-checks are soft enquiries and have zero impact. Myth: you need to carry a credit card balance to build a good score. Fact: paying your card in full each month builds positive repayment history just as effectively — and saves you interest. Myth: closing a credit card improves your score. Fact: it can actually reduce your score by shortening your credit history length and reducing your total available credit (which can increase your utilisation ratio on remaining cards). Myth: your income affects your credit score. Fact: income is not part of the scoring model — though lenders assess it separately. Myth: all debts are equal on your credit report. Fact: a mortgage in good standing is viewed very differently from a payday loan, even if both show perfect repayment. Myth: once your score is bad, it takes years to recover. Fact: while defaults stay for 5 years, the impact diminishes over time, and positive behaviour starts improving your score within months. Myth: paying off a default removes it. Fact: the default remains listed for 5 years from the original date, but it will be updated to show as 'paid' — which looks better to lenders than an unpaid default.
How your credit score affects home loan applications
Your credit score plays a critical role in home loan approvals, but it is not the only factor. Most major Australian banks will not approve a mortgage if your Equifax score is below 500-550. Between 550 and 650, you may be approved but at a higher interest rate or with a larger deposit requirement. Above 700, you are in a strong position for competitive rates. However, lenders look beyond the number — they examine the underlying report for specific red flags: defaults (even paid defaults raise concerns), multiple recent credit enquiries, high existing credit card limits, and any history of hardship arrangements. A single default from three years ago is viewed differently from multiple recent defaults. For borrowers with less-than-perfect credit, non-bank lenders and specialist lenders offer home loans at higher rates — typically 1-3% above the major banks. While this costs more, it provides a pathway to home ownership, and refinancing to a mainstream lender after 2-3 years of clean repayment history is a common strategy. Before applying for a home loan, check your credit report with all three bureaus, dispute any errors, reduce unnecessary credit card limits, and avoid any new credit applications for at least 3-6 months prior.
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General information and estimates only — not financial, tax, or legal advice. Always verify with a licensed adviser or the ATO.
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