The Five Factors Behind Your Credit Score

Why the Five Factors Matter

A credit score is not a mystery number — it is a calculated output based on five specific categories of information drawn from your credit report. Understanding what those categories are, and how much weight each carries, gives you a clear map for managing your credit with intention.

For a broader foundation on what credit scores measure and why lenders use them, see Credit Scores Explained. This article focuses specifically on the five factors themselves.

This article provides general financial education and is not personalised financial advice. Consult a qualified financial professional for guidance specific to your situation.

The Five Factors, Defined

Credit scoring models — including the widely referenced FICO model — group the data on your credit report into five weighted categories. Here is what each one covers and approximately how much it influences a typical score.

1. Payment History (~35%)

This is the single largest factor. It tracks whether you have paid your bills on time across all reported accounts — credit cards, loans, mortgages, and some utility or medical accounts. A single late payment can cause a measurable score drop, particularly if the account reaches 30 or more days past due. Consistent on-time payments, over time, build the strongest foundation. See your credit report field guide for how payment history appears in your report.

2. Amounts Owed / Credit Utilisation (~30%)

Credit utilisation refers to how much of your available revolving credit (primarily credit cards) you are using at any given time. It is calculated by dividing your current balances by your total credit limits. For example, a $2,000 balance across $10,000 of available credit equals 20% utilisation. Lower utilisation ratios are generally associated with stronger scores; many credit educators suggest staying below 30%, though lower is often better.

3. Length of Credit History (~15%)

This factor considers how long your accounts have been open — including the age of your oldest account, your newest account, and the average age across all accounts. A longer credit history provides more data for lenders to assess patterns. Closing old accounts can reduce average account age and may affect your score.

4. Credit Mix (~10%)

Lenders like to see that you can manage different types of credit responsibly. Credit mix accounts for the variety of account types on your report: revolving credit (credit cards), installment loans (auto or student loans), and mortgages. You do not need every type — but a healthy mix can contribute positively when other factors are strong.

5. New Credit / Recent Enquiries (~10%)

Each time you apply for new credit, lenders typically perform a hard inquiry — a formal check of your credit report. Multiple hard inquiries in a short period can signal financial stress to lenders and may temporarily lower your score. Rate-shopping for the same type of loan (such as a mortgage or auto loan) within a short window is generally treated as a single inquiry by most scoring models.

Putting It Into Practice

The weighting of these factors points directly to where your attention will have the greatest impact. Payment history and credit utilisation together account for roughly 65% of a typical score — meaning that paying on time and keeping balances manageable are the two highest-leverage habits available to most consumers.

Some credit habits cause damage gradually and invisibly. Habits that quietly damage your credit score explores patterns worth catching early before they compound.

Credit scoring is only one dimension of your financial profile — lenders also consider income, debt-to-income ratio, and employment stability when making credit decisions. Treat your score as one useful signal among several, not as a complete picture of financial health.