A client’s credit scores shape which lenders will consider them, how quickly files move and what pricing they are offered, so reading a credit report accurately is part of the job rather than an optional extra.
This guide covers what Australian credit scores measure, how the three bureau files differ, what actually moves a score and where score-based assumptions lead brokers astray.
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What a credit score measures
A credit score is a number calculated from the information held on a person’s credit report: repayment history, enquiries, defaults, court judgments and the types of credit in use. In Australia the main reporting bodies are Equifax, Experian and illion, and each calculates its own score from its own file. The same client can therefore carry three different scores at once.
The factors that move a score are consistent across bureaus:
- Repayment history: on-time payment of loans, cards and even telco bills carries the most weight.
- Credit Utilisation: how much of the available card limit is being used; lower is better.
- Credit History Length: longer, well-managed accounts demonstrate stability.
- Credit mix: cards, personal loans and mortgages handled well build a fuller picture.
- Recent enquiries: a burst of applications in a short window drags scores down.
The ranges differ by bureau
Scores do not share one scale. Equifax runs from 0 to 1,200 while Experian and illion run from 0 to 1,000, so a 700 on one file is not a 700 on another. Note also that Experian and illion have merged their Australian operations, with Experian now issuing combined reports; reporting arrangements can change, and it pays to check the current setup before quoting bureau names to clients.
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How scores affect approvals and pricing
Lenders use the score as one input in a wider assessment. Higher scores generally support smoother approvals and better loan terms, including on mortgage interest pricing, because lenders assess risk partly on credit behaviour. But no score guarantees approval: lenders read the full report behind the number, including recent defaults or enquiry clusters that a score alone may not fully reflect.
Be careful with published minimums
Australia has no universal minimum credit score for home loans. Each lender sets its own policy, and those policies change with market conditions and appetite. Beware of articles quoting fixed thresholds such as 620 for standard loans or 580 around government schemes; those figures come from other markets, and score policy shapes how smoothly a file moves through the wider mortgage process. Programs like the First Home Owner Grant are administered by state and territory governments and attach to property transactions rather than to scores, but the loan paired with them still has to clear normal lender assessment, where a below-policy score can mean specialist lenders, tighter lending criteria or rate loading.
Lifting a score before an application
Where a file needs improvement before lodging, the reliable levers are:
- Pay everything on time: set direct debits for at least the minimum repayments.
- Reduce outstanding Debt: lower balances improve utilisation and serviceability together.
- Pause new applications: hold off on cards, buy-now-pay-later sign-ups and personal loans until after settlement.
- Consolidate where sensible: folding short-term debts into one facility simplifies the report.
These changes take effect over weeks and months rather than days, so start them well before the intended application date. Budgeting discipline supports every item on the list.
Checking reports for errors
Every Australian can request a free copy of their credit report from each bureau once every three months, and checking costs nothing but a little time. Look for listings that belong to someone else, debts already paid that still show as open, and enquiry records the client never authorised. Errors happen often enough that this check belongs in your pre-application routine, because disputing a listing takes longer than most purchase timelines allow.
Rate movements driven by the Reserve Bank of Australia will always attract headlines, but the variable you control most directly is the quality of the credit file you present. Before lodging the next application, pull the client’s report from all three bureaus yourself, confirm every listing is accurate and current, then choose the lender whose score policy fits the weakest of the three files.
