The 5 Credit Score Factors, Explained Like a Human

Every credit score is built from five categories of information in your credit report. FICO publishes the weights, so this isn't guesswork: payment history 35%, amounts owed 30%, length of history 15%, new credit 10%, credit mix 10%. Here's what each one actually measures and what you can do about it.

1. Payment history (35%) - the heavyweight

One question: do you pay on time? A single 30-day late can cost a well-established score 60-110 points. The damage scales with recency (a late from last month stings far more than one from five years ago), frequency, and severity (90 days late is worse than 30).

Levers: autopay minimums on everything, immediately. Bring anything delinquent current - scoring rewards "current" status over time. For isolated lates on an otherwise clean account, a goodwill letter asking the creditor to remove the late mark sometimes works. And if a reported late is wrong, dispute it - that's your legal right under the FCRA.

2. Amounts owed (30%) - mostly utilization

This category is dominated by revolving utilization: your credit card balances divided by your credit limits. It matters both overall and per-card. The widely used rule of thumb: under 30% is okay, under 10% is where scores start looking their best. Lower is better, but 0% on every card can be slightly worse than a tiny reported balance on one.

Levers: pay balances down before the statement closing date (that's the balance most issuers report), ask for credit limit increases, spread spending across cards, and pay mid-cycle if you put a lot on a card.

3. Length of history (15%) - patience points

Reads your oldest account's age, the average age of all accounts, and how long it's been since you used certain accounts. There's no hack here - it's time. But there is one classic mistake: closing your oldest card. That can shorten your history and spike your utilization at once.

Levers: keep old no-fee cards open with a small recurring charge. Becoming an authorized user on someone's old, clean card can import age (and limit) onto your report.

4. New credit (10%) - the inquiry tax

Hard inquiries (when you apply for credit) cost a few points each and fade within a year, dropping off your report entirely after two. Several inquiries in a short window signals risk - except rate-shopping windows: FICO treats multiple mortgage, auto, or student loan inquiries within a short span (14-45 days depending on version) as one.

Levers: batch loan shopping into two weeks. Don't apply for new cards right before a mortgage. Check for prequalification (soft pull) before formally applying.

5. Credit mix (10%) - variety, lightly

Revolving accounts (cards) plus installment loans (auto, student, mortgage, credit-builder) shows you can handle both. It's the smallest factor - never take a loan just for mix. A secured card plus a credit-builder loan covers both bases cheaply if you're starting out.

The order I worked them

When I started at 650, I attacked in impact order: got utilization under 10% first (fastest mover), set autopay so nothing could ever go late again, disputed two errors on my report, then just let time do the age factor. That's still the order I'd tell anyone.

Quick answers

Which factor moves my score fastest?

Utilization. It has no memory in most models - the month you report a lower balance, the score recalculates. Payment history changes need time.

Does income affect my score?

No. Income isn't in your credit report and isn't a scoring input. Lenders ask about it separately when you apply.