A good credit utilization ratio is under 30% — but under 10% is ideal for the best scores. Utilization is the percentage of your available credit you're using, and it's 30% of your FICO score (second only to payment history). People with perfect 850 scores average about 4%; the sweet spot is roughly 1–9%. Both your overall and per-card ratios matter — maxing one card hurts even if your total is low. It updates every billing cycle, so lowering it works fast. And 0% isn't ideal either — use a little, then pay it off.
What Credit Utilization Actually Is
Your credit utilization ratio is the percentage of your available revolving credit — mostly credit cards — that you're currently using. If you have $10,000 in total credit limits and you're carrying $2,000 in balances, your utilization is 20%. It's a snapshot of how much of your available credit you're leaning on.
Why does it matter so much? Because scoring models treat it as a risk signal. Someone using a large share of their available credit may be overextended and closer to trouble, so high utilization drags your score down. Utilization sits in the "amounts owed" category, which makes up 30% of your FICO score — the second-biggest factor after payment history (35%). It carries significant weight in VantageScore too.
So What's a "Good" Number?
The famous "keep it under 30%" rule is a useful floor, not a magic line. As Experian puts it, there's no exact point where utilization suddenly goes from good to bad — 30% is simply where the negative effect becomes more pronounced. In reality, lower is better all the way down. If you want the maximum score benefit, aim for single digits.
But don't aim for exactly 0%. Counterintuitively, using none of your credit is slightly worse than using a little. When every card reports a zero balance, scoring models have less information about how you handle credit, so you miss out on maximum points. The ideal is low but not zero — let a small balance (a few percent) report, then pay it off. Some people use "AZEO" (all zero except one), letting just one card show a tiny balance.
How to Calculate Your Utilization
That's your overall utilization. But you should also check per-card utilization — divide each card's balance by its own limit. Only revolving credit counts; installment loans like your car loan and mortgage are not included. And a key detail: the number that counts is the balance reported to the bureaus, which is usually your statement balance at the end of each billing cycle — not what you owe at this exact second.
The Trap Most People Miss: Per-Card Utilization
Here's what trips up even careful people: scoring models look at both your overall ratio and your individual cards, including the one with the highest utilization. So you can get dinged for maxing out one card even when your total looks great.
Example: Two people both have 5% overall utilization. Person A has it spread evenly across every card. Person B has most cards at zero but one card maxed out at 95%. Person B will likely score lower — that single high-utilization card is a red flag, even though the totals match. The lesson: watch every card, not just the sum. A $200 balance on a card with a $300 limit (66%) can hurt you even if your other cards are empty.
How to Lower Your Utilization Fast
Pay down balances
The most direct fix. Since utilization updates every billing cycle, paying down a card can lift your score within about a month — with no lingering damage, unlike late payments. Focus first on any card with high per-card utilization.
Pay before your statement closes
Because the reported balance is usually your statement balance, paying the card down a few days before the closing date means a lower number reaches the bureaus — even if you use the card normally all month. This single timing trick can drop your reported utilization dramatically.
Request a credit limit increase
A higher limit with the same balance instantly lowers your ratio. Many issuers let you request one in the app, sometimes with no hard inquiry. The catch: don't let the extra room tempt you into spending more, or you erase the benefit.
Don't close old credit cards
Closing a card removes its limit from your total available credit, which can spike your utilization overnight. Keep old cards open (use them occasionally so they aren't closed for inactivity) to preserve your available credit and your credit history length.
Spread charges across cards
If one card runs hot, distribute your spending across several cards to keep each card's per-card ratio low. This balances the individual utilization figures that scoring models scrutinize.
The best part — utilization has no memory. Unlike a late payment that lingers for years, most scoring models only look at your most recently reported utilization. That means the moment your balances drop, your score responds — often within a single billing cycle. It's the fastest, most controllable lever you have. If you're trying to boost your score before a mortgage or car loan application, paying your cards down to under 10% in the month beforehand is one of the highest-impact moves available. (Note: newer models like FICO 10T also consider trended data over time, so sustained low utilization is even better than a one-month cleanup.)
Frequently Asked Questions
What is a good credit utilization ratio?
Generally under 30%, but under 10% is ideal for the best scores. Utilization is the percentage of your available revolving credit you're using. The rule of thumb is below 30% — Experian notes 30% is where it starts having a more pronounced negative effect — but there's no magic cutoff; lower is better. People with perfect 850 scores average about 4%, and the sweet spot is roughly 1–9%. One nuance: 0% isn't ideal either, since using none of your credit gives models less information. So aim low but not zero — ideally under 10%.
How is credit utilization calculated?
Divide your total credit card balances by your total credit limits, then multiply by 100. For example, $1,000 owed ÷ $5,000 in limits = 20%. That's overall utilization. Models also look at per-card utilization — each card's balance divided by its own limit — so calculate both. Only revolving credit (cards and lines of credit) counts; installment loans like auto loans and mortgages don't. The number used is the balance reported to the bureaus, usually your statement balance at the end of each billing cycle, not what you owe right now.
Does per-card utilization matter or just overall?
Both matter. FICO looks at overall utilization AND individual cards, including the highest one. So maxing one card can hurt even if your overall looks low. Someone with 5% overall but one card at 95% can score lower than someone with 5% spread evenly. A $200 balance on a $300-limit card (66%) can hurt even if other cards are empty. The takeaway: keep each card's utilization low too, ideally under 30% and preferably under 10%. If one card runs high, pay it down or spread charges across cards.
How can I lower my credit utilization quickly?
Several fast ways: pay down balances (updates within about a month); pay before your statement closing date so a lower balance gets reported; request a credit limit increase (higher limit, same balance = lower ratio); don't close old cards (that removes available credit and spikes utilization); and spread charges across cards to keep each one low. Because most models only look at your most recent utilization, lowering it produces a quick rebound — no lingering damage like late payments.
Is it bad to have 0% credit utilization?
Slightly — 0% is a bit less favorable than a low single-digit ratio like 1–9%. When all cards report zero, models have less information about how you manage credit, and using a small amount then paying it off signals responsible active use. The difference is small — 0% won't hurt like high utilization does — but it can cost you maximum points in "amounts owed." Ideal is to use cards lightly and land in the low single digits. A common trick is AZEO ("all zero except one"), letting one card report a small balance.
Sources & References
- Experian — What Is a Credit Utilization Rate (Oct 2025): ideally single digits, US average 29%, 30% more pronounced effect, per-account matters
- Bankrate — What Is a Good Credit Utilization Ratio (Oct 2025): 30% of FICO, below 30% for best results, excellent scores in single digits
- Britannica Money — Credit Utilization Ratio (March 2026): perfect scores average 4.1% utilization, statement-date reporting, trended data in FICO 10T
- myFICO — What Should My Credit Utilization Ratio Be: 30% of score, below 10% best, 0% not ideal, 66% example
- Credit Karma — Credit Card Utilization: resets monthly, per-card and overall, FICO ignores HELOCs, below 10% for highest scores
- Chase — How Much Credit Utilization Is Good: below 30%, aim for 10%, keeping unused cards open preserves available credit