Your credit score influences whether you get approved for a mortgage, what interest rate you pay on a car loan, whether a landlord will rent to you, and in some states, even what you pay for car insurance. It’s one of the most consequential three-digit numbers in your financial life — and yet most people have only a vague understanding of what determines it. Let’s fix that.
The Five Factors That Make Up Your Score
Payment history accounts for 35% of your FICO score — the single biggest factor. Paying every bill on time is the most impactful thing you can do. Credit utilization is 30%: how much of your available credit you’re using. Keep it below 30%, ideally below 10% for excellent scores. Length of credit history is 15% — older accounts help, which is why closing old cards often hurts. Credit mix is 10%: having both revolving and installment accounts slightly helps. New inquiries are 10%: applying for new credit temporarily drops your score a few points.
The Fastest Lever: Credit Utilization
Unlike most factors, utilization can change dramatically within a single billing cycle. Paying down a maxed card can add 20-50 points to your score quickly. Importantly, creditors typically report your balance on the statement closing date, not the payment due date. Paying before the statement closes means your reported utilization could be near zero even if you used the card throughout the month — a powerful optimization for those who want to temporarily boost their score before a major credit application.
Common Myths That Cost People Points
Carrying a balance does not help your credit — it only costs you interest. Checking your own score doesn’t hurt it. Closing old accounts typically hurts more than helps. You don’t have just one credit score — lenders use different models for different products, and your score varies between them. Understanding these myths prevents the well-intentioned but counterproductive behaviors that many people unknowingly engage in.
Review your credit reports for errors regularly — they’re more common than people expect and can drag down your score through no fault of your own. You’re entitled to a free report from each bureau annually through AnnualCreditReport.com. Treating your credit score as an asset to actively manage, rather than a mystery number to occasionally check, pays dividends every time you need credit.
