Your credit score comes from three companies that track your borrowing history, and you can get it free once a year from each of them

A credit score is a three-digit number that lenders use to decide whether to lend you money and at what interest rate. It is built from your payment history, how much debt you carry, how long you have had credit accounts, and a few other factors. The number itself is calculated by Equifax, Experian, and TransUnion — three credit bureaus that maintain files on nearly every person who has borrowed money in the United States.

You do not explore for a credit score. It is generated automatically once you have a credit account — a credit card, a loan, a mortgage, or even a utility bill in your name. The bureaus collect information from lenders, creditors, and public records, then use that data to produce a score. You can see your score for free once per year from each bureau through AnnualCreditReport.com, which is the only federally authorized source for free annual reports.

Most lenders use one of two scoring models: FICO (created by Fair Isaac Corporation) or VantageScore (created jointly by the three bureaus). FICO scores range from 300 to 850. VantageScore ranges from 300 to 850 as well. The higher your number, the lower the risk you appear to lenders, and the better interest rates you will typically receive.

Key Takeaways

  • You get one free credit report per year from each of the three bureaus through AnnualCreditReport.com, but that report does not always include your score — you may need to pay a small fee or use a third-party service to see the number itself.
  • FICO scores and VantageScore are the two main scoring models, and different lenders use different ones, so your score may vary depending on which bureau and which model a lender pulls.
  • Your score is built from payment history (35 percent), amounts owed (30 percent), length of credit history (15 percent), credit mix (10 percent), and new credit inquiries (10 percent) under the FICO model.
  • You can monitor your score for free through many banks, credit card issuers, and free services like Credit Karma and NerdWallet, though these often show VantageScore rather than the FICO score lenders actually use.

What the three credit bureaus track and why they matter

Equifax, Experian, and TransUnion each maintain separate files on you. They receive data from banks, credit card companies, mortgage lenders, auto lenders, collection agencies, and court records. Each bureau may have slightly different information because not every creditor reports to all three, and reporting delays mean one bureau may have more recent data than another.

This is why your credit score can differ across the three bureaus — sometimes by 50 points or more. A lender pulling your report from Equifax may see a recent payment that Experian has not yet recorded. A collection account may appear on one bureau's file but not another if the collection agency reports selectively. When you explore for a mortgage or auto loan, the lender typically pulls reports from all three bureaus and may use the middle score or average them.

Each bureau is required by law to give you a free copy of your credit report once per year. You request all three at AnnualCreditReport.com, which is operated by Equifax, Experian, and TransUnion jointly under a Federal Trade Commission mandate. You can request all three reports at once or stagger them throughout the year to monitor for errors or fraud more frequently.

The difference between a credit report and a credit score

Your credit report is a detailed record of your borrowing history. It lists every credit account you have opened, the balance and payment status of each, late payments, collections, bankruptcies, and hard inquiries (requests from lenders to see your report). The report itself is free once per year from each bureau.

Your credit score is a single number derived from the information in that report. The bureaus do not give you the score for free with your annual report — they sell scores to lenders. However, you can see your score free through many other channels. Many banks and credit card issuers now show your score free in their online banking portal or mobile app. Services like Credit Karma, NerdWallet, and Discover (even if you do not have a Discover card) offer free score monitoring.

The catch is that these free services usually show you a VantageScore, not a FICO score. FICO is what most mortgage lenders, auto lenders, and credit card issuers actually use to make lending decisions. VantageScore is used by some lenders and by many consumer-facing services because it is cheaper to license. Your VantageScore and FICO score can differ by 50 to 100 points, so monitoring one does not tell you what a lender will see.

How FICO scores are calculated

FICO breaks down your score into five categories, each weighted differently. Payment history (35 percent) is the largest factor — it looks at whether you paid on time, how late you were, and how many late payments you have. A single 30-day late payment can drop your score 100 points or more if your history was clean before.

Amounts owed (30 percent) measures how much of your available credit you are using. This is called your credit utilization ratio. If you have a credit card with a $5,000 limit and a $2,500 balance, your utilization is 50 percent. FICO favors utilization below 30 percent. Maxing out cards or carrying balances close to your limits signals risk to lenders, even if you pay on time.

Length of credit history (15 percent) rewards you for having accounts open longer. This is why closing old credit cards can hurt your score — you lose the age of that account. Credit mix (10 percent) means having different types of credit: credit cards, installment loans, mortgages, and auto loans. New credit inquiries (10 percent) penalizes you for explore for credit recently. A hard inquiry (when a lender pulls your report) can lower your score a few points and stays on your report for two years.

Where to get your free credit report and score

Go to AnnualCreditReport.com and enter your name, address, date of birth, and Social Security number. You will be asked to verify your identity, usually by answering security questions based on your credit history. You can then view your report from each bureau online or request it by mail.

The report itself is free, but it does not include your score. To see your FICO score, you have a few options. You can pay the bureaus directly — Equifax, Experian, and TransUnion each charge roughly $20 to $30 for a single FICO score. You can use a free service like Credit Karma or NerdWallet, which show VantageScore at no cost. Or you can check whether your bank or credit card issuer offers free FICO score monitoring through their app or website.

Many major banks now include free FICO score monitoring as a cardholder benefit. Chase, Bank of America, Citi, American Express, and Discover all show FICO scores to their customers. If you do not have a credit card or bank account that offers this, paying $20 once to see your actual FICO score is often worth it before you explore for a mortgage or auto loan, since that is the score lenders will use.

What to do if you find errors on your credit report

Errors on credit reports are common. A payment may be reported as late when you paid on time. An account may appear twice. A collection account from someone else with a similar name may be mixed into your file. Under the Fair Credit Reporting Act, you have the right to dispute any information you believe is inaccurate.

Start by getting your free report from AnnualCreditReport.com and reviewing it carefully. Look for accounts you do not recognize, payments marked late that you made on time, and duplicate entries. If you find an error, contact the bureau in writing — you can do this online through their dispute portal or by mail. Provide specific details about what is wrong and include copies of supporting documents (payment confirmations, statements, letters from the creditor).

The bureau has 30 days to investigate your dispute. If they find the information is inaccurate, they must remove or correct it. If the error came from the creditor (the lender or collection agency), you can also dispute it directly with them. Send a written dispute to the creditor's dispute department with copies of your evidence. Correcting errors can raise your score significantly if the error was dragging it down.

How to build or rebuild your credit score

If you have no credit history, you need to open a credit account and use it responsibly. A secured credit card is often the easiest entry point. You deposit cash with the card issuer (usually $200 to $2,500), and they give you a card with a credit limit equal to your deposit. You use the card for small purchases and pay the full balance on time each month. After 6 to 12 months of on-time payments, many issuers convert the card to a regular unsecured card and return your deposit.

If you have damaged credit from late payments, collections, or bankruptcy, rebuilding takes time but is possible. Focus on paying every bill on time, keeping credit card balances low (below 30 percent of your limit), and not opening new accounts unless necessary. Each month of on-time payments helps. Late payments age off your report after seven years, and bankruptcies after seven to ten years, depending on the type.

Do not pay for credit repair services that promise to remove accurate negative information from your report — they cannot legally do that, and many are scams. You can dispute inaccurate information yourself for free. Building credit takes months or years, not weeks, but it is free and it works.

Frequently Asked Questions

Does checking my own credit score hurt it?

No. When you check your own score, it is a soft inquiry and does not affect your score. Only hard inquiries — when a lender pulls your report because you applied for credit — lower your score. You can check your score as often as you want without penalty.

Why is my credit score different on different websites?

Different services use different scoring models (FICO versus VantageScore), different bureaus (Equifax, Experian, or TransUnion), and different versions of those models. FICO alone has multiple versions. A lender may use FICO 8, while Credit Karma shows VantageScore 3.0. The differences are normal and do not mean one score is wrong.

How long does it take to build credit from zero?

You need at least six months of credit history for most scoring models to generate a score at all. Building a score high enough to may have access to for good interest rates typically takes one to two years of on-time payments and low balances. The longer your positive history, the higher your score will climb.

Can I remove a late payment from my credit report?

If the late payment is accurate, no — it will stay on your report for seven years. If it is inaccurate, you can dispute it with the bureau and the creditor. Some creditors will remove a late payment as a goodwill gesture if you have a long history with them and it was an isolated incident, but they are not required to.

What credit score do I need to get a mortgage or car loan?

Requirements vary by lender and loan type. Most conventional mortgages require a FICO score of at least 620, though better rates start around 740. Auto loans are available with lower scores, sometimes in the 500s, but at much higher interest rates. The higher your score, the better your rate will be.