Credit utilization is one of the biggest factors in your credit score, and one of the fastest to improve. It measures how much of your available revolving credit you’re using, and lenders read a high number as a sign you may be stretched.
How credit utilization is calculated
Divide your balances by your credit limits. If you have a card with a $5,000 limit and a $1,500 balance, your utilization on that card is 30%. Scoring models look at each card individually and at your total across all revolving accounts, including lines of credit.
Same $10,000 in total limits, different utilization
Why 30% is the number you keep hearing
There’s no magic cliff at 30%, but it’s a widely used rule of thumb: staying below it generally keeps utilization from dragging your score down. The lower you go, the better. People with the highest scores often use under 10% of their available credit.
Six ways to lower your utilization
- Pay down balances, starting with the cards closest to their limits.
- Make a mid-cycle payment before your statement date so a smaller balance is reported.
- Ask for a credit limit increase on a card you manage well. A higher limit with the same balance means lower utilization, as long as you don’t spend more. Ask whether it involves a hard inquiry.
- Spread spending across cards so no single card runs close to its limit.
- Keep old cards open. Closing a card removes its limit, which can push your utilization up overnight.
- Consolidate high-interest balances into an instalment loan if it helps you pay debt down faster. Compare your options.
How fast does utilization affect your score?
Unlike late payments, which can stay on your report for years, utilization is mostly a snapshot of your current balances. Once lower balances are reported, usually within a statement cycle or two, your score can respond fairly quickly. That makes it a great lever to pull a month or two before applying for a mortgage or car loan.
This article is general information, not financial advice. Scoring models and reporting practices vary. Last reviewed September 2026.