Keep your balance below 30% of your credit limit
The amount of your credit card you use—called your credit utilization ratio—matters more than most people realize. It directly affects your credit score. The general rule is to keep your balance below 30% of your credit limit. If your card has a $1,000 limit, that means keeping your balance under $300.
Why 30%? Credit scoring models treat high utilization as a sign of financial stress. When you're using most of your available credit, lenders see you as riskier. Even if you pay on time every month, a high utilization ratio can lower your score by 50 to 100 points or more. That drop can cost you when you apply for a mortgage, car loan, or another credit card.
The lower your utilization, the better your score. Ideally, aim for under 10% if you're trying to build excellent credit. But anything under 30% is considered healthy by most scoring models.
Key Takeaways
- Your credit utilization ratio is the percentage of your credit limit you're currently using, and it accounts for about 30% of your credit score.
- Keeping your balance below 30% of your limit is the standard threshold; below 10% is even better for your score.
- Your utilization is calculated on the statement date, not when you pay, so timing matters if you're carrying a balance.
- Paying down your balance before the statement closes is more effective for your score than paying after the bill arrives.
- Multiple cards with low balances look better to credit scoring models than one card with a high balance, even if the total amount owed is the same.
How utilization is actually calculated
Credit bureaus don't look at what you owe right now—they look at what you owed on your last statement closing date. This is important because it means the timing of your payment affects your score.
If you have a $1,000 limit and you charge $600 on day 5 of your billing cycle, then pay it off on day 20, your utilization is still 60% when the statement closes on day 25. The payment you made in the middle doesn't change what gets reported. Only what you owe on that closing date counts.
This is why people who pay their balance in full each month can still have high utilization if they charge a lot before the statement closes. To keep utilization low, you need to keep your balance low on the day your statement closes—not just by the time you pay the bill.
When you have multiple credit cards
If you have more than one card, credit scoring models look at two numbers: your utilization on each individual card, and your total utilization across all cards combined. Both matter.
Suppose you have two cards: Card A with a $2,000 limit and Card B with a $3,000 limit. If you put $1,500 on Card A and nothing on Card B, your utilization on Card A is 75%—too high—even though your total utilization across both cards is only 30%. That high individual utilization can hurt your score.
The better approach is to spread your spending across cards. If you charge $900 on Card A and $900 on Card B, your utilization on each card is 45% and 30% respectively, and your total utilization is 36%. Still not ideal, but more balanced. Ideally, you'd keep each card under 30% individually and your total under 30% as well.
The difference between paying in full and paying down
Paying your full balance each month is the best financial move—you avoid interest charges entirely. But for your credit score specifically, it doesn't matter whether you pay $100 or $1,000 of a $1,500 balance. What matters is what you owe on the statement closing date.
If you want to protect your score while carrying a balance, pay down your balance before your statement closes, not after. Call your card issuer to find out your closing date, then make a payment a few days before. This lowers what gets reported to the credit bureaus.
Some people use a different strategy: they charge purchases throughout the month, then pay the full balance before the statement closes. This way, the statement shows a $0 or very low balance, which keeps utilization low and avoids interest charges at the same time.
Why you shouldn't close unused cards
When you close a credit card, that card's credit limit disappears from your total available credit. This can raise your utilization ratio on your remaining cards, even if you don't charge anything new.
For example, if you have $5,000 in total credit limits across three cards and you're using $1,000, your utilization is 20%. If you close one card with a $2,000 limit, your total available credit drops to $3,000. Now that same $1,000 balance means 33% utilization. Your score can drop just from closing the card.
This is why financial advisors often recommend keeping old cards open and unused, rather than closing them. The card costs nothing if you don't use it, and it helps your score by keeping your total available credit high.
How to lower your utilization quickly
If your utilization is high right now, the fastest way to lower it is to pay down your balance. But there are other options depending on your situation.
Request a credit limit increase. A higher limit lowers your utilization ratio without you paying anything down. Many card issuers let you request an increase online or by phone. Some do a soft inquiry (which doesn't affect your score) and some do a hard inquiry (which temporarily lowers your score by a few points). Ask which type they use before you request.
Spread charges across multiple cards. If you have several cards, use each one for different purchases. This keeps the balance on any single card lower and improves both individual and total utilization.
Pay before the statement closes. If you're carrying a balance, make a payment a few days before your closing date. This reduces what gets reported to the credit bureaus, even if you plan to charge again later in the cycle.
Utilization and your credit score over time
Changes to your utilization show up in your credit score within a month or two. If you lower your utilization this month, you should see your score improve by your next statement closing date. This makes utilization one of the faster credit score factors to improve, compared to payment history (which takes years to build) or length of credit history (which only grows with time).
However, the improvement only lasts as long as you keep your utilization low. If you raise it again next month, your score will drop again. Utilization is a moving target, not a permanent achievement.
Frequently Asked Questions
Does paying my balance in full hurt my credit score?
No. Paying in full is the best financial choice because you avoid interest. For your score, what matters is your balance on the statement closing date. If you pay in full before that date closes, your utilization will be 0% or very low, which helps your score.
What if I have a $0 balance on all my cards?
A $0 balance on all cards is ideal for your credit score. It shows you're not using credit, which is different from showing you can't access credit. Your score will reflect responsible credit use without any risk of high utilization.
Can I request a credit limit increase without hurting my score?
Some card issuers offer credit limit increases with a soft inquiry, which doesn't affect your score. Others use a hard inquiry, which temporarily lowers your score by a few points. Call your card issuer and ask which type they use before you request an increase.
Does utilization affect my score if I pay off my balance every month?
Yes. Even if you pay in full, your utilization is based on what you owe on your statement closing date, not what you owe when you pay. If you charge $800 on a $1,000 limit and pay it off a week later, your utilization was still 80% when the statement closed. To keep utilization low, pay down your balance before the statement closes.
Is 30% utilization the same for all credit scoring models?
The 30% rule is a general guideline that works across most scoring models, including FICO and VantageScore. However, different lenders may weight utilization differently. Some focus more on individual card utilization, others on total utilization. Staying under 30% on both protects you across all models.