Quick Answer
Credit utilization ratio is the percentage of your available revolving credit that you're currently using. It's calculated by dividing your total credit card balances by your total credit limits. Credit utilization accounts for 30% of your FICO score — the second most important factor.
| Utilization | Score Impact | Notes |
|---|---|---|
| 1%–3% | Optimal | Maximum score benefit. Shows active use without high balance. |
| 4%–10% | Excellent | Very good score impact. Aim for this range. |
| 11%–30% | Good | Acceptable. Below 30% is the common guideline. |
| 31%–49% | Moderate | Starting to hurt your score. Pay down if possible. |
| 50%–74% | High | Significant score damage. Priority to pay down. |
| 75%–100% | Very High | Major score damage. Maxed-out cards are a red flag. |
What is a good credit utilization ratio?
The ideal credit utilization is 1%–10%. Under 30% is the commonly cited guideline, but scores improve significantly as you get below 10%. Keeping utilization at 1%–3% (using your cards but paying almost all of it off) produces the best score results.
Does 0% utilization hurt your credit score?
Slightly. Having 0% utilization (no balance on any card) is slightly worse than 1%–3% utilization. This is because 0% may indicate the card isn't being used, which provides less positive payment history data. However, the difference is small — 0% utilization is much better than 30%+ utilization.
How quickly does credit utilization affect your score?
Credit utilization updates every billing cycle — typically monthly. If you pay down a large balance, your score can improve within 30–45 days once the new balance is reported to the credit bureaus. This makes utilization the fastest factor to change in your credit score.
Does credit utilization reset every month?
Yes. Credit utilization is calculated based on your current balance at the time your statement closes, not a running average. If you pay down your balance before the statement closes, your utilization for that month will reflect the lower balance. There's no memory of past high utilization — only the current snapshot matters.
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View on Amazon →As an Amazon Associate, WiseIQ earns from qualifying purchases. This does not affect our editorial recommendations.