Credit Score Factors Australia: What Actually Affects Your Score and What Doesn’t

Getting knocked back for credit because of a poor score is frustrating, especially when you thought your finances were in good shape. Understanding what actually affects your credit score can help you avoid surprises and make informed decisions about your financial behaviour.

Your credit score is calculated using specific data from your credit report. Some factors have a major impact, others have a minor effect, and many things you might expect to matter don’t affect your score at all.

Got a default on your credit file? Lodge it with Default Gone right here, or call us on (02) 5502 7025. $399 flat per consumer per default. We do not guarantee removal — outcomes depend on the facts of each case — but we will prepare and lodge the dispute properly.

This guide breaks down exactly what influences your credit score in Australia, what doesn’t, and how each factor works in practice.

The short answer: what affects your credit score

Your Australian credit score is calculated using five main categories of information from your credit report:

• Payment history (35-40% of score) – whether you pay bills on time
• Defaults and negative events (25-35% of score) – unpaid debts over $150
• Credit enquiries (10-15% of score) – applications for credit in recent years
• Credit utilisation (10-15% of score) – how much available credit you use
• Length of credit history (5-10% of score) – how long you’ve had credit accounts

Factors that don’t affect your score include income, savings, employment status, age, marital status, and where you live.

Payment history: the biggest factor

Payment history is the most important component of your credit score. This includes:

What counts as payment history

• Credit card payments
• Personal loan repayments
• Car loan payments
• Home loan payments
• Business loan repayments (for personal guarantees)
• Buy now, pay later repayments (reported by some providers)

How late payments affect your score

Under comprehensive credit reporting, lenders can report when you’re more than 14 days late on a payment. The impact depends on:

• How late: 30 days late has less impact than 60 or 90 days late
• How recent: Recent late payments hurt more than old ones
• How frequent: Multiple late payments create a pattern
• The amount: Higher dollar amounts may have more impact

What doesn’t count as payment history

• Utility bills (unless they go to a collection agency)
• Rent payments (unless through a credit-reporting rental service)
• Phone bills (unless they become a default)
• Council rates
• Insurance premiums

Most household bills don’t affect your credit score when paid on time or even when paid a bit late. They only impact your score if they become a default listing.

Defaults and serious credit infringements

Defaults are the second-biggest factor affecting your credit score. A default can be listed when you’re more than 60 days overdue on a debt over $150.

Types of negative listings

• Defaults: Unpaid debts over $150 that are more than 60 days overdue
• Court judgements: Legal decisions ordering you to pay a debt
• Part IX debt agreements: Formal arrangements under bankruptcy law
• Bankruptcies: Legal insolvency proceedings
• Serious credit infringements: Multiple payment defaults on the same account

How defaults affect your score

The impact of a default depends on:

• The amount: Higher amounts typically have more impact
• How recent: Fresh defaults hurt more than older ones
• How many: Multiple defaults compound the damage
• Whether it’s paid: Paid defaults still affect your score but may have less impact

Defaults stay on your credit file for five years, even after they’re paid. However, their impact on your score typically decreases over time.

When defaults may be worth challenging

Not every default is correctly listed. A default may be worth challenging if:

• You never received proper notice
• The amount is incorrect
• You paid before the default date
• The debt was disputed when the default was listed
• The required pre-default process wasn’t followed

If a default is blocking your finance application, it may be worth checking whether it was listed correctly.

Credit enquiries

Every time you apply for credit, the lender typically checks your credit report. This creates a credit enquiry record that affects your score.

Types of credit enquiries

• Hard enquiries: Applications for credit cards, loans, mortgages
• Soft enquiries: Checking your own credit report, pre-qualification checks
• Account reviews: Existing lenders reviewing your file

Only hard enquiries affect your credit score. Checking your own credit report through a free credit scan doesn’t impact your score.

How enquiries affect your score

The impact of credit enquiries depends on:

• How many: Multiple enquiries in a short period signal credit stress
• How recent: Enquiries in the last 12 months have the most impact
• The type: Multiple enquiries for the same type of credit may be treated as a single enquiry if made within 14-45 days

Credit enquiries stay on your file for five years but typically only affect your score for 12-24 months.

Shopping around for credit

If you’re shopping for a home loan or car loan, multiple enquiries for the same type of credit within a short period (usually 14-45 days) are often treated as a single enquiry for scoring purposes.

Credit utilisation

Credit utilisation measures how much of your available credit you’re using. This primarily applies to credit cards and lines of credit.

How utilisation is calculated

Utilisation can be measured:

• Overall: Total balances divided by total limits
• Per card: Individual card balance divided by that card’s limit

Both matter, but overall utilisation typically has more impact.

Optimal utilisation levels

• Under 30%: Generally considered good
• Under 10%: Often seen as excellent
• 0%: Can be good, but using some credit shows active management

For example, if you have a $10,000 credit card limit, keeping your balance under $3,000 (30%) is generally better for your score than maxing out the card.

When utilisation is calculated

Most credit providers report your balance to credit reporting bodies on your statement date, not your due date. This means:

• Paying down balances before your statement date can improve your reported utilisation
• Making multiple payments per month can keep your reported balance low
• The balance shown on your credit report may not reflect your current balance

Length of credit history

The length of your credit history considers:

• How long you’ve had credit accounts
• The age of your oldest account
• The average age of all your accounts

A longer credit history is generally better for your score, as it provides more data about your credit behaviour.

Building credit history

• Keep old accounts open (unless there are annual fees)
• Avoid closing your oldest credit card
• Be patient – building a solid credit history takes time

What doesn’t affect your credit score

Many factors that people think affect credit scores actually don’t:

Personal information that doesn’t matter

• Income: Your salary doesn’t appear on your credit report
• Savings: Bank account balances aren’t included
• Employment status: Whether you’re employed, unemployed, or self-employed
• Age: Your date of birth is recorded but doesn’t affect scoring
• Marital status: Single, married, or divorced status doesn’t matter
• Location: Your suburb or postcode doesn’t affect your score
• Education: University degrees or qualifications aren’t considered

Financial behaviour that doesn’t affect your score

• Most utility bill payments (unless they become defaults)
• Rent payments (unless through specific credit-reporting services)
• Insurance payments
• Gym memberships
• Phone bills (unless they become defaults)
• Overdraft usage on transaction accounts
• Debit card transactions

Investment and asset information

• Property ownership
• Share portfolios
• Superannuation balances
• Investment property values
• Car ownership

Lenders may ask about these factors during a credit application, but they don’t directly affect your credit score calculation.

How comprehensive credit reporting changed the game

Australia moved to comprehensive credit reporting in 2014, which expanded the information that can be included in credit reports.

Before comprehensive reporting

Credit reports mainly showed:

• Personal details
• Credit enquiries
• Defaults and negative events
• Public records (bankruptcies, court judgements)

After comprehensive reporting

Credit reports can now include:

• All the previous information, plus:
• Account opening and closing dates
• Credit limits
• Repayment history information
• Account types

This change means lenders now have more information to assess credit risk, and positive payment behaviour can help improve scores over time.

What to check on your credit file

To understand what’s affecting your credit score, review your credit file regularly and check for:

• Incorrect personal details: Wrong name, address, or date of birth
• Unknown accounts: Credit accounts you didn’t open
• Incorrect payment history: Late payments you believe were paid on time
• Outdated information: Old defaults that should have been removed
• Incorrect enquiry details: Applications you didn’t make
• Wrong account limits: Credit limits that don’t match your records

Steps to check your credit file

1. Obtain a free copy of your credit report from each credit reporting body
2. Review all sections carefully
3. Compare the information against your records
4. Note any errors or unfamiliar entries
5. Contact the credit provider or reporting body to dispute errors

Common credit score myths

Myth: Checking your credit score hurts it

Reality: Checking your own credit score or report is a soft enquiry and doesn’t affect your score.

Myth: Closing credit cards always improves your score

Reality: Closing cards can hurt your score by reducing available credit (increasing utilisation) and shortening credit history.

Myth: Paying off a default removes it immediately

Reality: Paid defaults typically remain on your credit file for five years and continue to affect your score, though the impact may decrease.

Myth: You need to carry a credit card balance to build credit

Reality: You can build positive credit history by using credit cards and paying them off in full each month.

Myth: Income is the most important factor

Reality: Income doesn’t directly affect your credit score, though lenders consider it separately during applications.

How Default Gone helps

Default Gone helps Australians challenge unfair, incorrect or unlawfully listed defaults. We collect the relevant information, prepare the dispute, lodge it with the credit provider and/or credit reporting body, track the response and explain the outcome in plain English.

The standard Default Gone service is $399 per consumer, per default (limited launch pricing — normally $399). There are no stage fees, no success fees and no surprise invoices. The fee covers the work performed, not a sought outcome.

Next steps for managing your credit score

Understanding what affects your credit score helps you make informed decisions about your financial behaviour. Focus on:

• Making all credit payments on time
• Keeping credit card balances low
• Limiting new credit applications
• Checking your credit report regularly for errors
• Addressing any incorrect or unfair listings

If you have a default that’s affecting your credit score and blocking finance applications, don’t assume it’s correctly listed. Start your default review to check whether the listing may be worth challenging.

Disclaimer

Default Gone is not a law firm and does not provide legal or financial advice. We do not undertaking that a default or judgement will be removed. Outcomes depend on the facts, documents and response from the credit provider, credit reporting body or relevant legal pathway.

Frequently asked questions

What has the biggest impact on my credit score in Australia?

Payment history typically has the biggest impact on Australian credit scores, making up 35-40% of the calculation. This includes whether you make credit card, loan, and other credit payments on time. Late payments, especially those more than 30 days overdue, can significantly hurt your score. Defaults and other serious credit events are the second-biggest factor, often making up 25-35% of your score calculation.

Does my income affect my credit score?

No, your income does not directly affect your credit score in Australia. Income information is not included in credit reports or credit score calculations. However, lenders will ask about your income when you apply for credit and use it to assess your ability to repay. A high income can help you qualify for credit even with a lower score, while a low income might make approval harder even with a good score.

How long do defaults stay on my credit file and affect my score?

Defaults remain on your Australian credit file for five years from the date they were listed, regardless of whether you pay them. However, their impact on your credit score typically decreases over time. A recent default will hurt your score more than one that’s several years old. Paying a default may reduce its impact somewhat, but it won’t remove the listing or completely eliminate the effect on your score.

Does checking my credit score hurt it?

No, checking your own credit score or credit report does not hurt your credit score. This is called a “soft enquiry” and has no impact on your score calculation. You can check your credit report as often as you want through free services without any negative effects. Only “hard enquiries” from lenders when you apply for credit affect your score.

Can closing old credit cards improve my credit score?

Closing old credit cards can actually hurt your credit score in two ways. First, it reduces your total available credit, which can increase your credit utilisation ratio if you carry balances on other cards. Second, it can shorten your average credit history length, especially if you close your oldest account. Generally, it’s better to keep old cards open unless they have annual fees, even if you don’t use them regularly.

How much does a single late payment affect my credit score?

The impact of a single late payment depends on several factors: how late it was, how recent it was, and your overall credit history. A payment that’s 30 days late will have less impact than one that’s 60 or 90 days late. If you have an otherwise strong credit history, one late payment may only cause a small, temporary drop in your score. However, if you already have credit issues, even one late payment can cause a more significant drop.

What’s the difference between a credit enquiry and checking my credit report?

A credit enquiry happens when a lender checks your credit report because you’ve applied for credit – this is a “hard enquiry” that can affect your score. Checking your own credit report is a “soft enquiry” that doesn’t affect your score at all. Other soft enquiries include pre-qualification checks and existing lenders reviewing your account. Only hard enquiries from actual credit applications impact your credit score calculation.

Does paying off all my credit cards to zero help my credit score?

Paying credit cards to zero can help your credit score by improving your credit utilisation ratio, but having some small balances might be slightly better than having no balances at all. Credit scoring models like to see that you actively use and manage credit. The ideal approach is to use your cards for regular purchases and pay them off in full each month, which shows active credit management while keeping utilisation low.