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How does a credit score work?
Quick answer
A credit score works as a number that predicts how likely you are to repay borrowed money. Lenders calculate it from your history of paying bills, debts, and loans — and use it to decide whether to lend to you and at what interest rate.
Step by step
- It summarizes your borrowing history into a single number.
- On-time payments raise it; missed payments and heavy debt lower it.
- Lenders use it to judge risk and set interest rates.
- A higher score means cheaper, easier access to credit.
- It's built over time and can be improved with good habits.
People also ask
What affects your credit score?
Mainly your payment history, how much debt you carry, the length of your credit history, and recent applications for new credit.
Why does a credit score matter?
It decides whether lenders approve you and what interest rate you pay, affecting the cost of loans, cards, and sometimes housing or jobs.
How can you improve a credit score?
Pay bills on time, keep debt low relative to your limits, avoid opening many accounts at once, and let your history age.
What affects a credit score the most?
Your payment history — consistently paying bills on time has the biggest positive impact.
How can I improve my credit score?
Pay on time, keep balances low relative to your limits, and avoid opening many new accounts at once.
Why do lenders use credit scores?
They give a quick, standardized estimate of how likely you are to repay borrowed money.
Part of the guide: Money Basics: Save, Borrow & Invest →