What Actually Affects Your Credit Score?

There is more credit score misinformation circulating than almost any other personal finance topic. People avoid checking their own score because they think it will hurt them. They carry balances because they were told it helps. They close old cards thinking it cleans up their file. Almost all of it is wrong.

The Two Factors That Drive Most of Your Score

Payment history and credit utilization together account for roughly 65 percent of a FICO score. Everything else is secondary.

Payment history (35 percent) is binary: you paid on time or you did not. A single 30-day late payment on a 780 score can cause a drop of 90 to 110 points. Set up automatic minimum payments on every account as a baseline.

Credit utilization (30 percent) measures how much of your available revolving credit you are using. Stay below 30 percent across all cards combined. Below 10 percent is better. Key insight: your score is based on the balance reported on your statement closing date — not your payment due date.

The Supporting Factors

• Length of credit history (15%) — average age of accounts matters. Closing your oldest card is almost always a mistake.
• Credit mix (10%) — both revolving and installment loans signal you can manage different debt types
• New credit inquiries (10%) — one is minor, several in a short window signals stress

The Myths Worth Killing

• Checking your own score does not hurt it — soft inquiry, zero impact
• Carrying a balance does not help build credit — paying in full every month is strictly better
• Income does not appear in your FICO score
• Closing a paid-off card usually hurts your score

Your 3-Step Action Plan

• Automate minimum payments on every account so you are never late
• Pay down credit card balances before your statement closing date, not just before the due date
• Check all three bureau reports regularly to catch errors and unauthorized activity