Find out how your credit score can affect home loan interest rates in Australia and learn ways to improve your chances of a better deal.
In Australia, your credit score serves as a quick indicator of your creditworthiness. Credit scores typically range up to 1,000 or 1,200, depending on the credit reporting body (Equifax, Experian, or illion). A higher score generally reflects better financial behaviour, which may translate into a more favourable interest rate, especially under risk‑based pricing models.
Lower interest rates for higher scores: Borrowers with strong credit often access better interest rate discounts and loan features (like offset and redraw facilities), whereas lower scores may result in higher rates or restricted lending options.
Loan-to-value ratio (LVR) benefits: A stellar credit score might allow you access to more generous LVRs, reducing or even avoiding lenders mortgage insurance (LMI) and lowering costs.
Borrowing capacity and approval likelihood: Lenders factor your credit score into how much they’re willing to lend and under the terms they offer. Lower scores may mean greater scrutiny or a need for a larger deposit (or guarantor).
While no major bank guarantees an exact score threshold, general ranges and their implications include:
Excellent / Very Good (e.g. ~800+): Access to premium loan products, lower rates, flexible features.
Good / Average (620–700): Most lenders still approve these, but you may not secure the lowest rates.
Below Average (<600): Fewer options, potential higher rates, or need to consider specialist lenders or guarantors.
Lenders assess much more than your credit score, including:
Serviceability: Can you afford repayments based on your income and expenses? Lenders use debt‑to‑income thresholds (typically 30–35%) when assessing affordability.
LVR & deposit size: Higher deposits (lower LVRs) often attract better interest rates.
Risk-based pricing: Lenders price loans based on perceived default risk, which includes credit score, income stability, and property type.
Your credit behaviour: Earlier late payments, BNPL usage, or multiple credit applications can harm your profile—even if your credit score seems decent.
Check and correct your credit report by disputing inaccuracies with Equifax, Experian, or illion.
Always pay repayments on time—on credit cards, loans, utilities—and keep balances low.
Avoid multiple credit applications in a short timeframe—they’re recorded as “hard” enquiries and can suppress your score.
Close unused BNPL or credit accounts if they’re dragging down your lending profile—one Sydney home‑buying case shows a small Afterpay debt caused a loan rejection.
Maintain a clean credit history—timely payments and limited new credit requests help your score and lenders’ trust in your application.
Work with a mortgage broker—they can guide you towards lenders that best match your profile and minimise unnecessary credit checks.
Do you know your credit score? If you’re looking to get a loan or pre-approval soon, it’s a great thing to find out. Get in touch, and we will be able to assist with finding your credit score, plus reviewing a range of loan options to find a great rate that is tailored to your needs. Remember, using a mortgage broker is an obligation-free, zero-cost service, so having one on your side is a major flex when it comes to getting a great deal with any lender.
