The Five Things That Make Up Your Credit Score
Your credit score is a three-digit number built from five specific categories of information in your credit report. The score itself comes from a mathematical formula — most commonly the FICO model — that weighs these five categories differently. Knowing what goes into the calculation helps you understand why your score moves the way it does and where you have the most control.
The five categories are payment history, amounts owed, length of credit history, credit mix, and new credit inquiries. Not all five matter equally. Payment history and amounts owed together account for about 65 percent of your score, which means those two areas have the biggest effect on the number you see.
Key Takeaways
- Payment history — whether you pay on time — makes up 35 percent of your score and is the single largest factor.
- Amounts owed, or how much of your available credit you are using, accounts for 30 percent and affects your score even if you pay on time.
- Length of credit history, credit mix, and new inquiries together make up the remaining 35 percent but have less direct impact on month-to-month changes.
- A missed payment can lower your score by 100 points or more, while paying down a credit card balance can raise it within weeks.
- Your credit score is calculated separately by Equifax, Experian, and TransUnion, so you may see three slightly different numbers.
Payment History: 35 Percent of Your Score
Payment history is whether you pay your bills on time. This includes credit cards, car loans, mortgages, student loans, and any other account that reports to the credit bureaus. A single late payment — even 30 days late — stays on your report for seven years and can drop your score when ready.
The older the late payment, the less damage it does. A missed payment from two years ago hurts less than one from two months ago. If you have a history of on-time payments and then miss one, the impact is usually larger than if you have a pattern of late payments already on your report.
Accounts in collections, charge-offs, and foreclosures also fall under payment history and have severe effects on your score. These remain on your report for seven years as well, though their impact weakens over time.
Amounts Owed: 30 Percent of Your Score
Amounts owed refers to how much of your available credit you are currently using. This is called your credit utilization ratio. If you have a credit card with a $5,000 limit and a $2,000 balance, your utilization on that card is 40 percent.
The credit bureaus look at your utilization on each individual account and your total utilization across all accounts. Using less than 30 percent of your available credit is generally considered good. Using more than 70 percent can lower your score, even if you pay the full balance every month on time.
This means you can have a perfect payment history and still see your score drop if you carry high balances. Paying down a credit card balance without closing the account is one of the fastest ways to raise your score, sometimes within one or two billing cycles.
Length of Credit History: 15 Percent of Your Score
Length of credit history measures how long you have had credit accounts open. The bureaus look at the age of your oldest account, the age of your newest account, and the average age of all your accounts.
A longer history generally helps your score because it shows you have managed credit over time. Closing old accounts can hurt this category because it lowers the average age of your accounts. This is why financial advisors often recommend keeping old credit cards open even after you pay them off — the account age continues to help your score.
If you are new to credit, this category works against you straightforward because you have not had time to build history. As you keep accounts open and active, this percentage of your score improves automatically.
Credit Mix: 10 Percent of Your Score
Credit mix means having different types of credit accounts. The bureaus distinguish between revolving credit — credit cards and lines of credit where you can borrow, repay, and borrow again — and installment credit — loans like car loans, mortgages, and personal loans where you borrow a fixed amount and pay it back in set monthly payments.
Having both types of accounts on your report shows you can manage different kinds of debt. Someone with only credit cards looks riskier than someone with a credit card, a car loan, and a mortgage, even if both pay on time.
You should not open new accounts just to improve your credit mix. The impact is small — only 10 percent of your score — and opening new accounts can temporarily lower your score in other ways. If you naturally need different types of credit, the mix will develop on its own.
New Credit Inquiries: 10 Percent of Your Score
When you explore for credit, the lender requests a copy of your credit report. This is called a hard inquiry and appears on your report. Multiple hard inquiries in a short time can lower your score because they signal you are actively seeking new credit, which lenders see as higher risk.
Hard inquiries stay on your report for two years but only affect your score for about three to six months. explore for a car loan, mortgage, or credit card all trigger a hard inquiry. Checking your own credit report does not — that is called a soft inquiry and does not affect your score.
Shopping for the best rate on a mortgage or car loan within a short window — usually 14 to 45 days depending on the scoring model — counts as a single inquiry rather than multiple ones. This is designed to let you compare offers without being penalized for each process.
How the Three Credit Bureaus Calculate Differently
Equifax, Experian, and TransUnion are the three major credit reporting agencies. Each one maintains its own file on you and calculates your score separately. You may see three different credit scores because the information in each bureau's file is not always identical.
A creditor might report to all three bureaus, two of them, or only one. A late payment might appear on one bureau's report but not another if the creditor does not report to all three. This is why your score can vary by 50 points or more across the three bureaus.
You are may have access to to one free credit report from each bureau every 12 months through AnnualCreditReport.com, which is the official site run by the three bureaus. Checking your reports there does not affect your score.
Frequently Asked Questions
Does paying off a credit card in full hurt my credit score?
Paying off the full balance is good for your score because it lowers your utilization ratio. However, if you close the account after paying it off, you lose the account age and available credit, which can temporarily lower your score. Keep the account open and use it occasionally to maintain the benefit.
How much does a late payment hurt my credit score?
A single late payment can drop your score by 100 points or more, depending on how high your score was before and how late the payment is. A 30-day late payment hurts less than a 90-day late payment. The impact decreases over time, and after seven years the late payment falls off your report entirely.
Can I raise my credit score quickly?
Paying down credit card balances is the fastest way to raise your score, sometimes within weeks. Correcting errors on your credit report can also help. Improving payment history takes longer — you need months of on-time payments to offset a recent late payment.
Does checking my own credit score lower it?
No. Checking your own credit report or score is a soft inquiry and does not affect your score. Only hard inquiries from lenders when you explore for credit lower your score, and only temporarily.
What credit score do lenders actually use?
Most lenders use FICO Score, which is the most common scoring model. However, some use VantageScore or other models. Different lenders may also use different versions of FICO — mortgage lenders often use FICO Score 2, 4, or 5, while credit card companies typically use FICO Score 8. The five categories remain the same across all versions.