The 5 things that actually move your score
Short answer
Bureau formulas are private, but the factors are well known: payment history (~35%), credit utilisation (~30%), credit age (~15%), credit mix (~10%) and hard inquiries (~10%). Paying on time and keeping utilisation under 30% is roughly 65% of the game.
The five factors, in rough order of weight
Every bureau guards its exact formula, but the ingredients and their approximate weights are well established.
| Factor | Rough weight | What it measures |
|---|---|---|
| Payment history | ~35% | Did you pay on time, every time? |
| Credit utilisation | ~30% | How much of your limit you use |
| Credit age | ~15% | How long your accounts have existed |
| Credit mix | ~10% | Cards and loans, handled well |
| Hard inquiries | ~10% | How often you applied recently |
1. Payment history (~35%)
One missed payment reported to a bureau outweighs months of good behaviour. This is the factor to protect above all others, and it is also the easiest to automate: autopay on Total Amount Due, plus a reminder three days before the due date.
2. Credit utilisation (~30%)
Utilisation is the balance reported at statement date divided by your total limit. Under 30% is the widely used healthy zone.
The subtlety: it is measured at statement date, not on the due date. So you can pay every bill in full, never owe a rupee of interest, and still show high utilisation if your statement closes right after a big purchase.
3. Credit age (~15%)
Older accounts signal a longer track record. Your oldest card quietly anchors this number β which is why closing it is usually a mistake. See the myths lesson.
4. Credit mix (~10%)
Handling different kinds of credit β a card plus a loan, say β reads better than a single type. This is not a reason to take a loan you do not need. It is a reason not to worry when you have both.
5. Hard inquiries (~10%)
Every application creates a hard inquiry and a small, temporary dip. One is nothing. Five in a month reads as distress, and lenders treat it that way.
What none of this includes
Your salary, savings, spending pattern and debit card usage are not in the score. Lenders consider income separately, when they assess affordability.
Putting it together
If you want the shortest possible instruction set:
- Pay in full, on time, every month.
- Keep reported balances under ~30% of your limits.
- Keep old, free cards open.
- Apply rarely and deliberately.
- Read your own report once a year and dispute errors.
That is most of the model, and all of it is free. Try the combinations in the score habit simulator β it is an illustrative teaching model, not a prediction.
All figures on this page are indicative and dated. Rates and fees differ by bank and change over time. Always verify with your bank's official schedule of charges.
Frequently asked questions
What is the single biggest factor in a credit score?
On-time payment history, at roughly 35% of the model. No other factor comes close, which is why one autopay instruction protects more of your score than any other single action.
What credit utilisation should I aim for?
Under about 30% of your total limit is the widely used healthy zone, measured on the balance reported at statement date. If you regularly cross it, either pay part of the bill before the statement generates or ask for a limit increase you do not intend to use.
Sources
The regulation and official pages this page is checked against. If one of them disagrees with us, it wins.
- What is a CIBIL Score β TransUnion CIBIL
- FAQs β Understand Your Credit Score and Report β TransUnion CIBIL
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