Key Takeaways
- Credit utilisation — how much of your available credit you use — typically accounts for roughly 30% of your credit score.
- Most scoring models reward keeping utilisation below 30%, with lower generally being better.
- Paying balances more than once per month can reduce the utilisation reported to bureaus.
- Requesting a credit limit increase can lower utilisation without changing your spending habits.
- Individual card utilisation matters as much as your overall ratio across all accounts.
What you will need
What Credit Utilisation Actually Means
Credit utilisation refers to the percentage of your revolving credit — primarily credit cards and lines of credit — that you are currently using. It is calculated both per account and across all revolving accounts combined. Under widely used scoring models, it accounts for a substantial share of your overall credit score, often cited as approximately 30%.
The logic behind this weighting is straightforward: lenders interpret high utilisation as a sign that a borrower may be stretched thin financially, even if payments are being made on time. Conversely, low utilisation suggests disciplined use of available credit. This makes utilisation one of the most immediately responsive factors in your score — changes can reflect within one to two billing cycles once new balances are reported.
To understand which accounts appear on your report and how they're being reported, it helps to review your full credit file. See Reading Your Credit Report Without Getting Lost in the Jargon for a plain-language walkthrough.
What you will need
Tools You'll Need
Before working through the steps below, gather the resources that will give you an accurate picture of where your utilisation stands today.
Credit card statements or online account portal
Used to find your current balance and credit limit on each revolving account.
Free credit report
Used to confirm which accounts and limits are being reported to the credit bureaus.
Basic calculator or spreadsheet
Used to calculate your utilisation ratio across individual cards and in total.
Step-by-Step: Managing Your Credit Utilisation
Follow these steps to calculate, diagnose, and actively lower your credit utilisation ratio. The process takes as little as 10 minutes for a first review and becomes quicker each month as it becomes routine.
Calculate your current utilisation ratio
For each revolving account (credit cards, lines of credit), divide your current balance by your credit limit, then multiply by 100. For example, a $1,200 balance on a $4,000 limit card equals 30% utilisation on that card.
Next, add up all balances across cards and divide by the sum of all limits to find your overall utilisation ratio. Both figures affect your score.
Identify which cards are pulling your ratio up
A card that is nearly maxed out can drag your score down even if your overall utilisation looks reasonable. List each card, its balance, its limit, and its individual utilisation percentage. Flag any card above 30%.
Make a targeted paydown plan
Prioritise paying down the cards closest to their limits first. Even reducing a card from 90% to 50% utilisation can produce a noticeable score improvement once the new balance is reported.
If funds are limited, a partial payment focused on the highest-utilisation card usually produces more credit score benefit than spreading the same amount evenly across all cards.
Request a credit limit increase on existing accounts
If your balance stays the same but your credit limit increases, your utilisation ratio falls automatically. Contact your card issuer to request a limit increase, especially if your income has grown or your payment history is strong.
Ask whether the request will trigger a hard inquiry — some issuers conduct a soft pull only, which does not affect your score.
Avoid closing old or unused cards
Closing a credit card removes its available limit from your total, which immediately raises your overall utilisation ratio. Unless a card carries an annual fee you cannot justify, keeping it open (and occasionally active) preserves your total available credit.
For more context on how account history and closures affect your score, see Credit Score Myths That Could Be Costing You Points.
Monitor and maintain your ratio over time
Utilisation is a dynamic factor — it resets every billing cycle based on your reported balance. Set a personal target (many financial educators suggest staying below 10–30%) and review your balances monthly to stay within it. Free credit monitoring tools can alert you when your reported utilisation changes significantly.
Low Utilisation Has Compounding Benefits
Keeping utilisation consistently low — not just bringing it down once — signals long-term credit discipline to lenders. Even if your score doesn't jump immediately, sustained low utilisation strengthens your credit profile over multiple reporting cycles and positions you more favourably when you apply for new credit.
Why This Matters Beyond Your Credit Score
Keeping utilisation in a healthy range does more than protect an abstract three-digit number. A stronger score can translate into more favourable interest rates on mortgages, personal loans, and auto financing. For a concrete example of how score differences play out in lending decisions, see How Credit Scores Influence Auto Loan Terms.
Managing utilisation also reinforces broader borrowing discipline. The habits built here — tracking balances, making timely payments, avoiding unnecessary credit strain — overlap with the durable practices covered in Responsible Borrowing Habits That Hold Up Over Time.
Opening New Cards Has Trade-Offs
Adding a new credit card increases your total available credit and can lower utilisation, but it also generates a hard inquiry and reduces your average account age — both of which can temporarily reduce your score. Opening new accounts works best as a deliberate, infrequent strategy rather than a routine fix.
This article is for general informational and educational purposes only. It does not constitute personalised financial or credit advice. For guidance specific to your situation, consult a qualified financial professional.