Five Factors That Influence Your Credit Score

If your credit score feels like a black box, you're not alone. In reality, mainstream scoring models like FICO base your score on five clear categories. Knowing what they are — and roughly how much each one weighs — helps you focus your energy where it matters most.

1. Payment history (about 35%)

The single most important factor. It answers a simple question: have you paid your accounts on time?

• Late payments, collections, and bankruptcies hurt significantly
• The more recent the problem, the more it can weigh
• Even a few months of consistent on-time payments start building a positive record

What to do: Set up automatic payments or calendar reminders for at least the minimum due, every month, without exception.

2. Amounts owed and credit utilization (about 30%)

This looks at how much of your available credit you're using. A common guideline is to keep utilization below 30% of your limit — and lower is better.

Example: If your card has a $1,000 limit and you carry a $400 balance, your utilization is 40%. Paying it down to $250 brings you to 25%.

What to do: Pay balances before the statement closing date, not just the due date — that's often what gets reported to the bureaus.

3. Length of credit history (about 15%)

Older accounts generally help your score, because they show a longer track record. This includes the age of your oldest account, your newest account, and the average age of all your accounts.

What to do: Think twice before closing old cards you no longer use. Keeping them open (with an occasional small purchase) can help your average account age.

4. New credit (about 10%)

Each hard inquiry — when a lender checks your credit because you applied — can slightly lower your score. One inquiry is usually minor; many in a short period can add up.

What to do: Space out applications, and only apply for credit you actually need.

5. Credit mix (about 10%)

Scoring models look at the variety of your accounts — for example, cards alongside an auto loan. You don't need one of everything, and this is the least influential factor.

Key takeaways

• Payment history and utilization together drive about two-thirds of your score — start there
• Keep credit card balances below 30% of your limits, ideally lower
• Keep old accounts open; apply for new credit sparingly
• No factor works overnight — consistency over months is what moves a score

Frequently asked questions

Which factor should I improve first?

For most people, payment history and utilization offer the most improvement for the effort. Catch up on any late accounts first, then work balances down.

Does my income count toward these factors?

No. Income isn't part of your credit score, though lenders may consider it separately when you apply.

Is 30% utilization a magic number?

It's a widely cited guideline, not a rule. Lower is generally better, and paying in full every month is the healthiest habit.

Keep reading

• Understanding Your Credit Score
• Understanding Credit Utilization