The Five Factors That Make Up Your Credit Score

Your credit score is a three-digit number built from five specific pieces of information in your credit report. The score itself ranges from 300 to 850, and lenders use it to decide whether to lend you money and what interest rate to charge. The five factors are not weighted equally—some matter far more than others.

Payment history is the heaviest weight, making up 35 percent of your score. This is whether you paid your bills on time: credit cards, loans, utilities, medical bills, and anything else reported to the credit bureaus. A single late payment can drop your score, and the more recent the late payment, the bigger the damage. Payments that are 30 days late hurt more than payments that are 90 days late in terms of how recently they happened, but 90 days late is worse overall.

Credit utilization—how much of your available credit you are using—makes up 30 percent. 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 bureaus look at your utilization on each card and your total utilization across all cards. Using less than 10 percent of your available credit is ideal; using more than 30 percent starts to hurt your score.

Length of credit history accounts for 15 percent. This includes how long your oldest account has been open and the average age of all your accounts. Closing old accounts can lower this number, which is why keeping an old credit card open (even unused) can help your score.

Credit mix makes up 10 percent. This means having different types of credit: credit cards, car loans, mortgages, and personal loans. You do not need all of these, but having more than one type shows lenders you can manage different kinds of debt.

New credit inquiries account for the final 10 percent. When you explore for a credit card or loan, the lender pulls your credit report, creating what is called a hard inquiry. Multiple hard inquiries in a short time can lower your score slightly. Checking your own credit report does not hurt your score.

Key Takeaways

  • Payment history is the single biggest factor in your credit score, so paying bills on time matters more than anything else you can control.
  • Keeping your credit card balances below 30 percent of your limit helps your score, and using less than 10 percent is even better.
  • Closing old credit accounts can lower your score because it reduces the average age of your accounts and your total available credit.
  • Hard inquiries from credit applications hurt your score slightly, but the damage fades after a few months.
  • Having different types of credit—cards, loans, mortgages—helps your score, but only if you manage them responsibly.

How Payment History Affects Your Score the Most

Because payment history is 35 percent of your score, a single missed payment can be costly. A payment that is 30 days late shows up on your credit report and stays there for seven years. The damage is worst in the first few months after the missed payment, then gradually fades—a late payment from two years ago hurts less than one from two months ago.

Accounts in collections, charge-offs, and bankruptcies also live on your report for seven years (bankruptcies for ten years). These are more serious than a late payment and do more damage to your score. However, the impact of any negative mark weakens over time, especially if you build a strong payment history afterward.

If you have missed payments in your past, the best thing you can do now is pay everything on time going forward. Recent on-time payments matter more than old late ones, so your score will recover if you stay current.

Why Credit Utilization Matters Even When You Pay in Full

Many people think that paying off your credit card in full each month means utilization does not matter. It does. The credit bureaus look at the balance reported on your statement, not whether you paid it off later. If you charge $3,000 to a card with a $5,000 limit and then pay it off before the due date, the bureau still sees a 60 percent utilization for that month.

To keep utilization low, you can ask your card issuer to raise your credit limit (which increases your available credit without increasing your balance), or you can pay your balance before your statement closes. Some people pay their cards multiple times per month for this reason. You can also spread charges across multiple cards instead of maxing out one card.

Utilization resets each month based on your statement balance, so lowering it is one of the fastest ways to improve your score if payment history is already solid.

How Length of Credit History and Credit Mix Work Together

Your credit history length is the average age of all your accounts plus the age of your oldest account. If your oldest account opened 10 years ago and your average account age is 4 years, both numbers help your score. Closing accounts hurts this factor because it removes accounts from the calculation and can lower your average age.

Credit mix is simpler: having a credit card, a car loan, and a mortgage is better for your score than having only credit cards. However, you should never take out a loan just to improve your credit mix. The hard inquiry and new account will temporarily lower your score, and you will pay interest. Only borrow money when you actually need it.

If you have only credit cards and no installment loans, your score will still be fine as long as you pay on time and keep utilization low. Credit mix is only 10 percent of your score.

What Hard Inquiries Do and How Long They Last

A hard inquiry happens when you explore for credit and the lender checks your report. It shows up on your credit report and can lower your score by a few points. The damage is small—usually 5 to 10 points—but it is real. Multiple hard inquiries in a short time can add up.

Hard inquiries stay on your report for two years but stop affecting your score after about three to six months. This is why it is better to shop for a mortgage or car loan within a short window (a week or two) rather than spread applications over months—multiple inquiries for the same type of loan within 14 to 45 days usually count as a single inquiry.

Soft inquiries—when you check your own credit or a company checks your credit to send you a pre-approved offer—do not affect your score at all. Only hard inquiries from your own applications count.

How Your Credit Score Gets Calculated and Updated

Three major credit bureaus—Equifax, Experian, and TransUnion—collect information about your credit accounts and payment history. They use this information to calculate your score using a formula, most commonly the FICO score model. Each bureau may have slightly different information, so your score can vary between them.

Your score updates whenever new information is reported to the bureaus. Most lenders report monthly, usually around the time your statement closes. This means your score can change month to month based on your payment activity and balances. You can check your score for free through your bank, credit card issuer, or free credit monitoring websites.

If you see an error on your credit report—a late payment you did not make, an account you did not open, or a balance that is wrong—you can dispute it with the bureau. The bureau has 30 days to investigate and remove the error if it is not accurate.

What Does Not Affect Your Credit Score

Several things people worry about do not actually affect your score. Your income, employment history, and savings account balance are not on your credit report and do not factor into your score. Checking your own credit report or score does not hurt you. Paying off a loan early does not lower your score (though it may slightly reduce your credit mix).

Your age, race, gender, marital status, and location also do not affect your score. Utility bills, rent payments, and insurance payments typically do not show up on your credit report unless you fall behind and the company sends the debt to a collection agency. Some newer services report rent and utility payments to the bureaus, but this is not standard.

Hard inquiries from your own applications hurt your score, but inquiries from employers doing a background check or from companies sending pre-approved offers do not.

Frequently Asked Questions

How much does one late payment hurt my credit score?

A single late payment can drop your score by 50 to 100 points depending on how high your score was to begin with and how late the payment is. A 30-day late payment hurts less than a 90-day late payment. The damage is worst when ready after the late payment and gradually fades over time, especially if you pay on time afterward.

Can I improve my credit score quickly?

The fastest improvements come from lowering your credit utilization—paying down credit card balances can raise your score within a month or two. Fixing errors on your credit report can also help when ready. Longer-term improvements come from consistent on-time payments, which take months to show a real difference but compound over time.

Does closing a credit card hurt my score?

Yes, closing a card lowers your available credit (raising your utilization) and removes an account from your history (lowering your average account age). Both factors hurt your score. It is usually better to keep old cards open and unused rather than close them, unless the card has an annual fee you do not want to pay.

Why is my credit score different at different places?

The three credit bureaus may have different information about you, so they calculate slightly different scores. Additionally, different lenders use different credit score models—FICO, VantageScore, and others—which weight the five factors differently. All of these variations are normal.

Does paying rent help my credit score?

Rent payments typically do not show up on your credit report unless you stop paying and the landlord sends the debt to a collection agency. Some newer services and landlords report rent to the bureaus, but this is not standard. If you want rent to help your score, ask your landlord whether they report to the bureaus.