How Credit Utilisation Affects Your CIBIL Score

What credit utilisation ratio actually is

Credit utilisation ratio (CUR) is the percentage of your available revolving credit that you are currently using. It is calculated as:

Credit utilisation = (Total outstanding balance ÷ Total credit limit) × 100

If your credit card limit is ₹1,00,000 and your current balance is ₹35,000, your utilisation is 35%.

CIBIL and all four Indian credit bureaus track this figure closely. It accounts for roughly 30% of your CIBIL score — making it the second most important factor after payment history. You can have a perfect payment record and still lose 50–80 points by consistently running a high balance.

Why high utilisation looks risky to lenders

From a bank's perspective, someone who is regularly using 70–90% of their credit limit may be living close to the edge of their means. It suggests the borrower may struggle to absorb an unexpected expense without defaulting. Low utilisation, on the other hand, signals that you are using credit as a tool — not as a lifeline.

This is true even if you pay the bill in full every month. CIBIL takes a snapshot of your outstanding balance at a point in time (usually around your statement date). If that snapshot consistently shows ₹80,000 on a ₹1,00,000 card, the bureau sees 80% utilisation — regardless of whether you pay in full the following week.

The 30% rule and what the data actually shows

The widely cited target is keeping utilisation below 30%. In practice, people with CIBIL scores above 800 typically run utilisation below 10–15%. Here's how the bands generally map to score impact:

These are guidelines, not hard rules — CIBIL's algorithm is proprietary — but they reflect the broad consensus from credit counsellors and lenders across India.

Individual card vs aggregate utilisation

CIBIL looks at both dimensions:

1. Per-card utilisation: If a single card is maxed out even while other cards are empty, that individual card's high utilisation still counts against you.

2. Aggregate utilisation: The combined balance across all cards ÷ the combined limit across all cards.

This means you can reduce your overall utilisation in two ways: spend less, or increase your total available credit.

Worked example:

Meera has two credit cards:

• HDFC card: ₹60,000 limit, ₹45,000 balance (75% utilisation)
• SBI card: ₹40,000 limit, ₹5,000 balance (12.5% utilisation)

Aggregate: ₹50,000 balance ÷ ₹1,00,000 total limit = 50% utilisation

Her HDFC card is being flagged individually at 75%. She should pay down the HDFC balance before her statement date to bring that card's utilisation below 30% — ideally to around ₹15,000 (25%).

Strategies to lower utilisation without spending less

Request a credit limit increase

If you have been a good customer for 12+ months — paid on time, not maxed out too frequently — most banks will increase your limit on request. This is especially effective because your spending doesn't change, but your utilisation percentage drops.

Example: spending ₹25,000/month on a ₹60,000 card = 41.6% utilisation. After a limit increase to ₹1,00,000 with the same spend: 25% utilisation.

Call the bank's credit card helpline or apply through the app. Some banks auto-increase limits annually; you can also request it manually.

Spread spend across multiple cards

Instead of putting ₹40,000 on a single ₹60,000-limit card (67% utilisation), spread the same ₹40,000 across two cards with ₹40,000 limits each — you're now at 50% utilisation per card with ₹80,000 total limit. Same spend, lower ratio.

Make a mid-cycle payment

Since CIBIL snapshots your balance around your statement date, paying down your balance before the statement is generated lowers what gets reported. If you know your billing cycle ends on the 5th, pay down as much as possible by the 3rd.

Keep old cards open

Closing a card removes its limit from your total available credit — which instantly raises your utilisation ratio on remaining cards. Keep old cards open (and make an occasional small purchase to keep them active) even if you rarely use them.

What utilisation does not capture

Utilisation only applies to revolving credit — credit cards and credit lines. It does not apply to instalment loans like home loans, personal loans, or car loans. The outstanding balance on those is tracked separately under "amounts owed" but is not calculated as a utilisation ratio.

The takeaways

• Credit utilisation ratio is your revolving balance divided by your total revolving limit, expressed as a percentage.
• It accounts for roughly 30% of your CIBIL score — the second biggest factor after payment history.
• Keep aggregate utilisation below 30%; below 10% is ideal for the highest scores.
• CIBIL takes a snapshot around your statement date, so pay down balances before the statement is generated.
• Requesting a credit limit increase is a quick, no-cost way to lower utilisation without changing spending.
• Never close old credit cards — doing so removes their limit and immediately raises your utilisation.