The 30% Rule: How Credit Utilization Silently Controls Your Score

Credit utilization = (Total credit card balance) ÷ (Total credit limit) × 100. If your combined limit across all cards is ₹5,00,000 and your total outstanding on statement date is ₹2,00,000 — your utilization is 40%.

This ratio is 30% of your CIBIL score. Only payment history weighs more.

Under 30% total utilization = excellent. 30–50% = mildly negative. 50–75% = significant score damage. Over 75% = severe damage, treated almost like a missed payment.

Even more important: no single card should show more than 30% utilization. A person with 20% total utilization but one card at 95% still gets penalized.

Banks report your balance to CIBIL on the statement generation date, not the due date. So if you pay in full on the due date, CIBIL still sees the statement-date balance. To fix this: make a large pre-payment 3–5 days before your statement generates. Your reported utilization drops overnight and your score can rise 30–60 points in the next reporting cycle.