Credit utilization is the share of your available revolving credit that you are currently using. If you have $10,000 in total card limits and $3,500 in balances, your utilization is 35%. It accounts for roughly 30% of a FICO score — second only to payment history — and unlike payment history it can change in a single month.
Two numbers, not one
Scoring models look at both:
- Overall utilization across all revolving accounts.
- Per-card utilization on each individual account.
One maxed card can hurt even when your overall number looks fine. A person at 20% overall with a single card at 95% will usually score lower than someone flat at 25% across the board.
Why "under 30%" is a ceiling, not a goal
The 30% figure is widely repeated because crossing it is where damage becomes obvious. But the scoring curve keeps improving below that. People with scores above 800 typically report utilization in the 1%-7% range. Reporting exactly 0% on every card is very slightly worse than reporting a small balance, because the model likes to see active, managed use.
A practical target: keep overall utilization under 10% and no single card above 30%.
Timing matters more than paying "on time"
Your issuer reports the balance shown on your statement closing date, not your due date. You can pay in full every month and still show 60% utilization if you spend heavily and the statement cuts before your payment posts.
Two fixes:
1. Pay before the statement closes. Make a mid-cycle payment so the reported balance is small.
2. Ask for the closing date, then set a recurring payment three days earlier.
Three fast ways to lower utilization
- Request a credit limit increase. Many issuers do soft-pull increases online. A limit rise lowers utilization instantly without you paying anything.
- Do not close old cards. Closing a card removes its limit from the denominator and raises utilization overnight.
- Spread balances. Moving part of a maxed card to an unused one improves the per-card component even if the total is unchanged.
What utilization does not do
It has no memory. Unlike a late payment, a high-utilization month leaves no trace once the balance drops — the new number simply replaces the old one at the next report. That is why utilization is the lever to pull when you need points before a mortgage or auto application.
Run the numbers on your own debt with our debt-to-income calculator.