The Five Factors That Shape Your Credit Score

Why Your Credit Score Is Built from Five Distinct Pieces

Your credit score — most commonly calculated using the FICO® scoring model — is a three-digit number that lenders use to gauge how likely you are to repay borrowed money. It ranges from 300 to 850, and a higher score generally means better access to credit at lower interest rates. But the score itself is a summary, not a story. To truly understand it, you need to know what feeds into it.

The five components below are weighted differently, meaning some have far more influence on your score than others. Knowing which levers matter most helps you focus your energy in the right places. For a broader look at how your financial habits connect to your creditworthiness, see our article on how saving habits and credit health reinforce each other.

Breaking Down Each Factor

1. Payment History (approximately 35%)
This is the single most influential factor. It tracks whether you pay your bills on time — credit cards, loans, mortgages, and certain utility accounts. Even one missed payment, once reported to the credit bureaus, can drag your score down noticeably. Consistent on-time payments, maintained over months and years, are the foundation of a strong score.

2. Credit Utilisation (approximately 30%)
Credit utilisation is the ratio of your current revolving balances to your total available revolving credit. If your credit card limit is $5,000 and you carry a $1,500 balance, your utilisation is 30%. Most credit counsellors suggest keeping this figure below 30%, though lower is generally better. This factor responds quickly to changes — paying down a balance can improve your score within a billing cycle. Our companion article explains why credit utilisation matters more than most people realise.

3. Length of Credit History (approximately 15%)
Lenders prefer borrowers with a longer track record. This factor considers how long your oldest account has been open, how long your newest account has been open, and the average age of all your accounts. Closing old accounts — even ones you rarely use — can shorten your average account age and modestly lower your score.

4. Credit Mix (approximately 10%)
Having experience managing different types of credit — revolving accounts like credit cards and installment accounts like auto or student loans — signals that you can handle varied financial obligations. This factor carries relatively modest weight, so you should never take on unnecessary debt just to diversify your mix.

5. New Credit Inquiries (approximately 10%)
When you apply for new credit, lenders typically perform a hard inquiry (also called a hard pull) on your credit report. Each hard inquiry can cause a small, temporary dip in your score. Multiple applications in a short window — outside of recognised rate-shopping periods for mortgages or auto loans — can signal financial stress to lenders.

This article provides general financial education only and does not constitute personalised financial or credit advice. Consult a qualified financial adviser or credit counsellor for guidance specific to your situation.