What Is a Credit Score?
A credit score is an estimate of how likely you are to repay money you borrow, on schedule. The Consumer Financial Protection Bureau (CFPB) explains that it is calculated from the information in your credit report using a mathematical formula called a scoring model.1
Lenders use credit scores to decide whether to approve you for a mortgage, credit card or car loan. The score can also affect the interest rate and credit limit you are offered. Landlords and insurers may use scores too, for tenant screening and pricing.1
A higher score generally means lenders see you as less risky. That usually makes it easier to borrow and can lower what borrowing costs you over many years.
You Have More Than One Credit Score
There is no single credit score. The CFPB stresses that your score depends on which data is used, which scoring model is applied, which credit bureau supplied the data and even the day it was calculated.1
The two best-known scoring families are FICO and VantageScore, and each has several versions. A mortgage lender may use a different version from a credit card company. That is why the score shown in a banking app may not match the one a lender sees.
Most scores run from 300 to 850.1 Rather than chasing one exact number, it is more useful to understand what pushes all of your scores up or down.
What Goes Into a Credit Score
FICO publishes the five broad categories behind its scores, and how much each one counts for the general population.2
| Factor | Weight | What it looks at |
|---|---|---|
| Payment history | 35% | Whether you have paid past credit accounts on time |
| Amounts owed | 30% | How much you owe, including how much of your available credit you are using |
| Length of credit history | 15% | How long your accounts have been open |
| New credit | 10% | How many accounts you have opened or applied for recently |
| Credit mix | 10% | The variety of credit you use, such as cards and installment loans |
These weights are a general guide. FICO notes that the importance of each factor can differ from person to person, for example for someone with a short credit history.2
Payment History: The Biggest Factor
Paying every bill on time is the single most important thing you can do for your credit score. Payment history makes up about 35% of a FICO score.2 Late payments, accounts sent to collections and bankruptcies all weigh on it.
A payment that is a few days late usually costs you a fee, but lenders typically report a payment as late to the bureaus only once it is 30 days or more overdue. Even so, one reported late payment can hurt a score for a long time, so it is worth setting up automatic minimum payments as a safety net.
The good news is that the effect of a late payment fades as it gets older and as you add months of on-time payments after it.
Amounts Owed and Credit Utilization
The second-biggest factor is how much you owe, especially on credit cards. Amounts owed make up about 30% of a FICO score.2 A key part is your credit utilization: the share of your available card credit that you are using.
Here is an illustration. If you have one card with a $5,000 limit and a $1,500 balance, your utilization is 30%. Paying the balance down to $500 cuts it to 10%. Lower utilization generally helps your score, because it suggests you are not stretched.
Utilization is based on the balances your card company reports, often on your statement date. Paying down a card before the statement closes can lower the reported balance, even if you always pay in full.
Length of History, New Credit and Credit Mix
The remaining 35% of a FICO score comes from three smaller factors.2
- Length of credit history (15%): older accounts help. Closing your oldest card can shorten your average account age and reduce your total available credit.
- New credit (10%): opening several accounts in a short time can lower your score, because it can signal financial strain.
- Credit mix (10%): having both revolving credit, such as cards, and installment loans, such as a car loan, can help a little. It is never worth borrowing just to improve your mix.
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Try the Loan Calculator →Credit Reports vs Credit Scores
Your credit report is the record; your credit score is a number calculated from it. The three nationwide credit bureaus, Equifax, Experian and TransUnion, each keep a credit report on you. It lists your accounts, balances, payment history, and some public records and collections.
The Federal Trade Commission (FTC) explains that you can check your report from each bureau once a week for free at AnnualCreditReport.com.3 Federal law also gives you a free report from each bureau once every 12 months if you ask for it.3
Your free reports do not always include a score. Many banks and card companies now show a free score in their apps. Remember that it may be a different model or version from the one a particular lender uses.
How to Check and Fix Your Credit Report
Errors on a credit report can lower your score, so it is worth checking all three reports regularly. Look for accounts you do not recognize, late payments you did make on time, and balances that look wrong.
Under the Fair Credit Reporting Act, the bureaus must let you dispute mistakes.3 The FTC advises contacting both the credit bureau and the company that reported the information.3 Keep copies of everything you send and receive.
Accounts you do not recognize can also be a sign of identity theft. If you see them, act quickly to dispute them and consider placing a fraud alert or credit freeze with the bureaus.
How to Improve Your Credit Score
There are no shortcuts, but a few steady habits work for almost everyone.
| Habit | Factor it helps | Why it works |
|---|---|---|
| Pay every bill on time, with autopay as a backup | Payment history | Builds the record that counts most |
| Keep card balances low compared with limits | Amounts owed | Lowers your credit utilization |
| Keep old accounts open if they cost nothing | Length of history | Keeps your average account age higher |
| Apply for new credit only when you need it | New credit | Avoids several recent applications at once |
| Check your reports and dispute errors | All factors | Removes mistakes that drag your score down |
Scores move gradually. Paying down a large card balance can help within a month or two, once the lower balance is reported. Building a long record of on-time payments takes years, but it is the most reliable path to a strong score.
Everyday Card Habits That Help
Small routines with your credit cards add up to a stronger score over time. Set up automatic payments for at least the minimum, so a busy month never turns into a late payment. Then pay the full statement balance whenever you can, which avoids interest as well.
Keep an eye on your balance during the month, not just on the due date. A large purchase can push your utilization up when the statement is reported, even if you pay it off soon after. Spreading spending across cards, or paying part of the balance early, keeps the reported figure lower.
Finally, review your statements each month. Spotting an unfamiliar charge early protects both your money and your credit record.
Building Credit From Scratch
If you have little or no credit history, you may not have a score at all yet. Lenders need some record to score. Common first steps include a secured credit card, where you put down a deposit that becomes your limit, or a small credit-builder loan from a bank or credit union.
Being added as an authorized user on a family member’s well-managed card can also help, if the card company reports authorized users to the bureaus. Whatever you choose, use only a small part of the limit and pay on time every month. After several months of on-time payments, you are likely to have a score you can build on.
Why Your Credit Score Matters: A Worked Example
A better score can mean a lower interest rate, and that adds up over the life of a loan. Lenders set their own pricing, so the rates below are an illustration, not quotes.
Imagine two people borrowing $25,000 for five years. One is offered 7% and pays about $495 a month, about $4,700 in total interest. The other, with a weaker score, is offered 11% and pays about $544 a month, about $7,600 in total interest. The difference is roughly $2,900, for the same car.
Our loan repayment calculator lets you compare payments at any rate. Rates also move with the wider economy, as our explainer on rising interest rates describes.
What Lenders Look at Besides Your Score
A credit score is important, but it is rarely the only thing a lender checks. For larger loans, such as a mortgage, lenders also look at your income, your job history and how much of your income already goes on debt payments.
That last measure is often called your debt-to-income ratio. Someone with an excellent score can still be turned down if their monthly debts are already high compared with their income. Someone with a fair score and very little debt may be approved, though often at a higher rate.
The deposit or down payment matters too. Putting more money down lowers the lender’s risk, which can help when your score is not at its best.
Credit Freezes and Fraud Alerts
A credit freeze stops new lenders from seeing your credit report, which makes it much harder for someone to open accounts in your name. You place a freeze separately with each of the three bureaus, and you can lift it temporarily when you need to apply for credit yourself.
A fraud alert is lighter. It asks lenders to take extra steps to check your identity before opening a new account. Neither a freeze nor an alert affects your credit score.
Freezing your credit is a sensible step after a data breach, or if you rarely apply for new credit. It does not stop your existing cards or loans from working.
How Long Problems Stay on Your Report
Negative information does not stay on your credit report forever, and its effect weakens over time. A recent late payment weighs much more heavily than one from several years ago, especially if you have paid on time since.
The practical lesson is that it is never too late to start rebuilding. Each month of on-time payments adds a positive record, and older problems gradually matter less to your score. If a negative item is wrong, though, do not wait: dispute it straight away.
Common Credit Score Myths
Several popular beliefs about credit scores are wrong or only half true.
- “Checking my own score lowers it.” Checking your own credit is a soft inquiry and does not hurt your score.
- “Carrying a balance builds credit.” You do not need to pay interest to build credit. Paying your statement in full each month still shows on-time payments.
- “My income is part of my score.” Income is not in your credit report, although lenders may ask for it separately.
- “Closing cards always helps.” Closing an old card can raise your utilization and shorten your history, which may lower your score.
- “I have one credit score.” You have many, depending on the bureau, the model and the date.
Credit Scores and Your Wider Finances
A good score is a tool, not a goal in itself. It matters most when you are about to borrow, rent or buy insurance. The habits that build it, paying on time and not overspending, also make the rest of your finances stronger.
High-interest debt is the clearest example. Credit card interest compounds against you, as our explainer on compound interest shows. Paying it down helps your score through lower utilization, and it saves money every month.
Key Terms Explained
- Credit report: the record of your borrowing and repayment kept by each credit bureau.
- Credit bureau: a company that collects credit information, such as Equifax, Experian or TransUnion.
- Credit utilization: the share of your available revolving credit that you are using.
- Hard inquiry: a lender’s check of your credit when you apply, which can affect your score slightly.
- Soft inquiry: a check that does not affect your score, such as checking your own credit.
- Scoring model: the formula used to turn report data into a score, such as a FICO or VantageScore version.
The Bottom Line
Your credit score is a summary of how you have handled credit, and it shapes how much future borrowing costs. Pay on time, keep balances low, apply for new credit sparingly and check your reports for errors. Do that consistently and your scores will usually follow. For more, browse our money explainers.
Ready to raise yours? Our step-by-step guide on how to improve your credit score covers what helps fast and what takes time.
Your score affects the rates you are offered. Our explainer on APR shows what those rates cost you.
Educational content: This article explains general principles. It isn't personal financial, tax or investment advice. Rules and rates change, so check official sources or speak to a qualified adviser before making decisions.
Frequently Asked Questions
Most scores range from 300 to 850, and higher is better. Each lender sets its own cut-offs, so the same score can be enough for one product and not another.
Scores vary by credit bureau, scoring model and the date they are calculated. The CFPB notes that you do not have just one credit score.
No. Checking your own credit is a soft inquiry and does not affect your score. Only hard inquiries from credit applications can lower it slightly.
Paying down credit card balances is often the fastest lever, because it lowers your utilization once the new balance is reported. Fixing errors on your report can also help.
You can check your report from each of the three bureaus once a week for free at AnnualCreditReport.com. Federal law also guarantees one free report from each bureau every 12 months on request.
Missed or late payments do the most damage, because payment history is the largest factor. High balances compared with your credit limits come next.
Sources
- 1Consumer Financial Protection Bureau: What Is a Credit Score?
- 2myFICO: What’s in My FICO Scores?
- 3Federal Trade Commission: Free Credit Reports
Every figure in this article is checked against the sources above. How we research and fact-check →
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