How Credit Utilisation Actually Affects Your Score With Numbers


How Credit Utilisation Actually Affects Your Score with Numbers

Credit utilisation is a crucial factor in determining your credit score, but its impact is often misunderstood. In simple terms, credit utilisation refers to the percentage of your available credit that you’re using at any given time. To understand how it affects your score, let’s dive into the numbers. Generally, using less than 30% of your available credit is considered good, while using more than 70% can significantly lower your score.

What is Credit Utilisation?

Credit utilisation is calculated by dividing your total debt by your total available credit. For example, if you have a credit card with a limit of $1,000 and you’ve used $300, your credit utilisation is 30%. This applies to all types of credit, including credit cards, loans, and mortgages. It’s essential to keep your credit utilisation low to maintain a healthy credit score.

How Does Credit Utilisation Affect Your Score?

Credit utilisation accounts for about 30% of your credit score. The higher your credit utilisation, the lower your credit score will be. Here’s a rough breakdown of how credit utilisation affects your score: using 0-9% of your available credit can increase your score by 50-100 points, using 10-29% can increase your score by 20-50 points, using 30-49% can decrease your score by 20-50 points, using 50-69% can decrease your score by 50-100 points, and using 70% or more can decrease your score by 100-200 points.

Honest Take: While credit utilisation is an essential factor in determining your credit score, it’s not the only factor. Payment history, credit age, credit mix, and new credit also play a significant role. Don’t focus solely on credit utilisation; maintain a well-rounded approach to credit management.

Practical Examples of Credit Utilisation

Let’s consider a real-life example. Suppose you have two credit cards: one with a limit of $2,000 and the other with a limit of $1,000. You’ve used $600 on the first card and $200 on the second card. Your total available credit is $3,000, and your total debt is $800. In this scenario, your credit utilisation is 26.7% ($800 ÷ $3,000). This is considered a relatively healthy credit utilisation ratio.

Strategies to Improve Credit Utilisation

To improve your credit utilisation, focus on reducing your debt and increasing your available credit. Here are a few strategies: pay off high-balance credit cards first, consider a balance transfer to a lower-interest credit card, and avoid applying for too many credit cards at once. Additionally, make timely payments and keep old accounts open to maintain a long credit history.

Honest Take: Don’t close old accounts to try to improve your credit utilisation. This can actually harm your credit score by reducing your average credit age and available credit. Instead, focus on using old accounts sparingly and keeping them open to maintain a long credit history.

Relationship Between Credit Utilisation and Other Financial Decisions

Credit utilisation can have a ripple effect on other financial decisions, such as investing and saving. For instance, if you’re struggling with high credit card debt, it may be wise to focus on paying off that debt before investing in the stock market. On the other hand, if you have a solid emergency fund in place, you may be able to take on more credit to finance a large purchase, such as a car.

Conclusion and Next Steps

In conclusion, credit utilisation is a critical factor in determining your credit score. By understanding how credit utilisation works and implementing strategies to improve it, you can maintain a healthy credit score and make more informed financial decisions. Remember to keep your credit utilisation below 30%, pay off high-balance credit cards first, and avoid applying for too many credit cards at once.

Bottom Line

To summarise, credit utilisation is a vital aspect of credit management. By keeping your credit utilisation low, you can improve your credit score and enjoy better financial health. As you work on improving your credit utilisation, consider other aspects of your financial life, such as saving for emergencies, investing in your future, and managing debt. By taking a holistic approach to your finances, you’ll be better equipped to achieve your long-term goals.

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About the Author: James Crawford, Senior Financial Analyst
James Crawford is a certified financial analyst with 12 years of experience in personal finance.
Last reviewed: May 31, 2026
Transparency: Some links in this article point to products we have researched. If you buy through them, we may earn a small commission at no extra cost to you.