The 30% Number Everyone Quotes
Credit utilization — the percentage of available credit you're using — is the second most important factor in your credit score after payment history. The common guideline is below 30%, but scoring models reward under 10% even more.
How It's Calculated
Utilization is measured per-card and overall. A $2,000 balance on a $5,000 limit card is 40% utilization on that card. Add a second card with a $10,000 limit and $500 balance, and your overall utilization is $2,500 of $15,000 — about 17%. Both matter. A single maxed-out card hurts even if overall utilization is low. The Credit Card Calculator on DebtCalc shows per-card and total utilization at a glance.
Why Timing Matters
Most issuers report your balance on the statement closing date, not the payment due date. Even if you pay in full monthly, a high statement balance gets reported. Paying down before the statement closes is a simple way to lower reported utilization.
Improving Utilization Without Paying Off Everything
Three strategies: pay down before statement dates, request credit limit increases (lowers the ratio without reducing debt), or spread charges across cards to avoid high per-card utilization. None solve underlying debt, but they improve your score while you work on payoff. Check your utilization for free through Credit Karma, which shows per-card breakdowns and tracks changes over time.