Your credit score affects both whether lenders approve your application and the interest rate they offer.
Most lenders use a credit scoring model that assigns a numerical value to your file based on enquiries, defaults, payment history, and credit utilisation. A lower score triggers a higher risk-weighted asset calculation under APRA's Prudential Standard APS 112, which means the lender holds more capital against your loan and prices that cost into the rate. The score itself sits between 0 and 1,200 depending on the bureau, but lenders apply their own thresholds. One lender may approve an application at 650 while another declines it or adds a rate premium of 0.30% to 0.50%.
This matters more for magistrates than for applicants in many other professions because your income level often allows you to service a larger loan amount, and a rate increase on a loan of $800,000 or more compounds over the life of the loan. The difference between a score of 720 and a score of 620 can mean paying an additional $40,000 to $60,000 in interest over twenty years on a loan of that size, depending on the lender's pricing model.
How lenders assess your credit file during pre-approval
Lenders pull your credit file from one or more of the three bureaus (Equifax, Experian, and illion) within 24 hours of receiving your home loan application. The file shows every credit enquiry from the past five years, any defaults or court judgments, and repayment history for credit accounts reported under comprehensive credit reporting rules.
An enquiry is recorded each time you apply for credit, whether the application proceeds or not. Multiple enquiries in a short period signal credit stress, even if you were comparing rates. Lenders interpret this as either financial difficulty or poor decision-making, both of which affect serviceability assumptions. In our experience, three or more enquiries in a six-month period will prompt additional questions from most credit assessors, and five or more will often trigger a decline or a referral to a specialist credit team.
Consider a magistrate applying for pre-approval after previously applying with two other lenders in the same quarter. Each of those applications generated an enquiry. The third lender sees the pattern and requests a statutory declaration explaining the earlier applications. The applicant explains they were comparing offers, but the lender still applies a higher interest rate and reduces the approved loan amount by 10% due to the perceived risk. The outcome is a loan of $720,000 instead of $800,000, and a rate 0.40% higher than the advertised variable rate.
The repayment history component and comprehensive credit reporting
Since the rollout of comprehensive credit reporting, lenders can see whether you pay your accounts on time. This includes credit cards, personal loans, and car loans. A single missed payment stays on your file for two years. A payment more than 60 days overdue has a heavier impact than a payment 14 days late, but both reduce your score.
Repayment history contributes around 35% to 40% of your credit score calculation depending on the bureau. If you hold multiple credit accounts and one shows a pattern of late payments, lenders will apply a discount to your declared income when calculating borrowing capacity. The discount typically ranges from 10% to 20%, which directly reduces the loan amount you can access.
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Credit utilisation and its effect on serviceability
Credit utilisation is the ratio of your current credit card balances to your total credit limits. Lenders assess this as part of serviceability because high utilisation suggests you rely on credit to meet living expenses. Under the National Consumer Credit Protection Act, lenders must make reasonable enquiries about your financial situation, and sustained high utilisation flags a potential inability to service a larger commitment.
A magistrate with two credit cards, each with a $25,000 limit and balances of $22,000 and $19,000, has a utilisation rate above 80%. Even if the cards are paid down before settlement, the lender uses the full combined limit of $50,000 to calculate minimum repayments at 3% to 3.5% of the limit per month. That adds $1,500 to $1,750 to your ongoing expense calculation, which reduces the loan amount by approximately $300,000 to $350,000 depending on your income and other commitments.
Closing unused accounts before applying removes that liability from the serviceability calculation, but closing accounts also reduces your total available credit and can temporarily increase your utilisation ratio if you still carry balances elsewhere. The correct sequence is to pay down balances first, then close accounts you do not need, then wait at least one statement cycle before applying for a home loan. This ensures the updated balances and closures appear on your credit file when the lender pulls it.
What to do if your file contains an error or default
Disputes are common. A default may be listed incorrectly, or an account you closed may still show as open. You can lodge a dispute directly with the credit bureau, and they must investigate within 30 days. If the dispute is upheld, the bureau corrects the file and notifies the credit provider.
If a default is legitimate but paid, it remains on your file for five years from the date of the default, not from the date of payment. Paying a default does not remove it, though lenders view a paid default more favourably than an unpaid one. Some lenders will still decline an application if the default is less than 12 months old, regardless of payment status. Others will consider the application but apply a higher interest rate or require a larger deposit to offset the risk.
In a scenario where a magistrate has a single default of $1,200 from a utility account that was paid 18 months ago, most major lenders will still approve the loan if all other criteria are met, but the rate offered may be 0.20% to 0.30% higher than the lowest advertised rate. Non-major lenders with more flexible credit policies may offer a rate closer to standard pricing, though the loan features and offset account access may differ.
Timing your application to minimise enquiries
If you know you will apply for a home loan within the next six months, avoid applying for any other form of credit during that period. This includes credit cards, car loans, and retail finance. Each application generates an enquiry, and each enquiry reduces your score by a small amount. The reduction is typically between 5 and 15 points per enquiry, but the cumulative effect matters.
Some brokers submit multiple applications simultaneously to compare offers. This generates multiple enquiries in a single day, which lenders interpret as rate shopping rather than credit stress. The credit bureaus apply a 14-day window during which multiple mortgage enquiries are treated as a single event for scoring purposes, but not all lenders follow this approach in their internal models. If your broker plans to submit to more than one lender, confirm how they will manage the enquiry impact and whether the lenders involved will view the enquiries as a single event.
Your income as a magistrate generally allows you to access LMI waivers or discounted LMI at higher loan-to-value ratios, which means you may not need to wait as long to save a 20% deposit. However, submitting an application before your credit file is in order can result in a decline or a conditional approval that requires you to reduce your loan amount or increase your deposit, both of which delay settlement and may cost you the property if you are competing in a rising market.
Maintaining a score above 700 ensures you qualify for the lowest advertised rates from most lenders. Scores between 600 and 700 are still acceptable to many lenders but may attract rate loadings or reduced loan amounts. Scores below 600 typically require specialist assessment and may only be serviceable through non-major lenders at higher rates. Checking your own credit file does not generate an enquiry visible to lenders, so review your file at least 60 days before applying and address any issues before your broker submits your application.
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Frequently Asked Questions
How does my credit score affect the interest rate I'm offered?
A lower credit score increases the lender's risk-weighted asset calculation under APRA's Prudential Standard APS 112, which means they hold more capital against your loan and price that cost into the rate. The difference can be 0.30% to 0.50% or more depending on the lender and your score.
How many credit enquiries are too many when applying for a home loan?
Three or more enquiries in a six-month period will prompt additional questions from most lenders, and five or more often trigger a decline or referral to a specialist credit team. Each enquiry signals potential credit stress, even if you were comparing offers.
Does paying a default remove it from my credit file?
No. A default remains on your file for five years from the date of the default, not from the date of payment. Paying it improves how lenders view the default, but it does not remove it.
Should I close unused credit cards before applying for a home loan?
Yes, but only after paying down balances on all accounts. Lenders use your total credit limits to calculate minimum repayments, which reduces your borrowing capacity. Close accounts at least one statement cycle before applying so the closure appears on your credit file.
Can I check my own credit file without it affecting my score?
Yes. Checking your own credit file does not generate an enquiry visible to lenders. Review your file at least 60 days before applying and address any errors or issues before your broker submits your application.
