The 30% Rule: Why Keeping Credit Card Utilization Low Boosts Your Score?

While timely repayments are widely understood as key to maintaining a good credit score, many users still overlook credit utilization ratio - the percentage of available credit they actually use - which is a silent yet powerful factor influencing credit health.

Experts recommend keeping credit utilization below 30% of the total credit limit. Users who consistently exceed 50% utilization can see their credit scores drop by 40-60 points, even if they pay on time. For first-time or unaware users, this can have long-term implications on their ability to secure loans at favorable rates.

While payment history carries the most weight (35%) in determining a credit score, credit utilization follows closely at 30%, with other factors including length of credit history (15%), type of credit used (10%), and recent credit inquiries (10%). For credit cards, which offer revolving credit, the credit utilization ratio-the percentage of credit used against the total available limit is especially crucial.

For new credit card users, a utilisation rate below 30% is ideal as it signals financial discipline without over-reliance on credit. What many miss is that even with timely payments, consistently exceeding the 30% credit utilisation ratio can drag your score down significantly. That's because high utilisation is seen as a proxy for credit stress.

For new credit card users, maintaining a credit utilization ratio (CUR) below 30% is key to building a strong credit profile. CUR is calculated as (total outstanding balance ÷ total credit limit) × 100, showing the percentage of available credit you're using. Keeping utilization low signals responsible credit management to credit bureaus and supports a healthy credit score.

As per Manish Shara, Co-founder and CEO, ZET, at ZET, we work with many first-time users, and we've seen firsthand how staying well within that 30% threshold accelerates credit score improvement. Credit health isn't just about paying on time, it's about how much and how often you borrow, too.

According to Rohit R Chauhan, Founder & CEO, Ingood, "A lower utilization ratio signals disciplined credit behaviour, indicating you're not overly reliant on borrowed funds. Credit bureaus interpret this positively, often rewarding users with higher credit scores. While there's no fixed cutoff, utilization beyond 30% can start to negatively impact scores, even if payments are made on time."

Importantly, utilization is calculated across all active cards. If usage crosses 30%, consider requesting a higher credit limit or distributing expenses across multiple cards. For those wary of multiple cards, there's good news: credit scores respond quickly to recent activity, so lowering utilization can improve scores in a relatively short time.

Even if payments are timely, regularly using more than 50% of your credit limit can lower your score by 40 to 60 points. High utilization suggests financial strain to lenders, raising your risk profile and potentially affecting loan approvals and interest rates, as per Kundan Shahi, Founder of Zavo- loan.

Many users have multiple cards, so it's important to monitor overall utilization across all accounts. To keep your CUR in check, consider asking your bank to increase your credit limit, which can lower utilization without cutting back on spending, stated Kundan Shahi.

Staying on top of your credit usage builds lender confidence and improves your chances of accessing better credit products and loan terms.