What Is a FICO Score? Do FICO Scores Really Matter?
5 Min Read | Last updated: January 7, 2025

This article contains general information and is not intended to provide information that is specific to American Express products and services. Similar products and services offered by different companies will have different features and you should always read about product details before acquiring any financial product.
Your FICO score is a three-digit number based on the info in your credit report. Learn what your FICO score is, why it matters, and how it’s calculated.
At-A-Glance
- A FICO score can range between 300 and 850. A score above 800 is considered “exceptional.”
- FICO scores are calculated based on information on file in your credit report.
- Paying your bills on time and not using too much of your available credit are good ways to build an excellent FICO credit score.
A FICO credit score is a popular system credit card issuers and lenders use to get a quick sense of whether you are responsible with money. It’s a three-digit number calculated off the information in your credit reports. If you want to borrow money to buy a car or a home, your FICO score matters — a lot. It may play a role in whether you get approved, the amount of the loan you’re offered, and the interest rate you’ll pay.1 A solid FICO credit score is also typically needed to qualify for a credit card.
Getting up to speed on the ins and outs of what the FICO score measures and using that knowledge to foster responsible credit use may help you reach an excellent FICO credit score.
First things first: FICO stands for Fair Isaac Corporation, the company that created the scoring system decades ago.2 If you have a solid FICO score, it’s likely you will also do well under the other major credit scoring system, VantageScore.
Why Your FICO Credit Score Matters
To understand why FICO credit scores matter so much, put yourself in a credit card issuer’s or lender’s shoes. Every time you use a credit card, you’re essentially asking the card issuer to loan you money to make the purchase. Ideally, you pay it back when your credit card statement arrives to avoid interest charges. But you can also opt to pay only a portion of your credit card balance each month, which means the credit card issuer is trusting you to pay off the balance — and interest — over time.
A mortgage for a home purchase or a loan to buy a car is an even bigger ask. The lender is advancing a lot of money to help you get that car or home, while trusting your ability to handle repayment on a monthly schedule that can run for years.
Enter the FICO credit score. It’s a key factor that businesses check to get a sense of your financial responsibility and credit habits. As such, it influences the terms of the debt they offer. For instance, when you apply for a new credit card, your FICO score may play a role in setting the annual percentage rate (APR) you will owe on unpaid balances. In general, a higher score means a lower APR.3
FICO credit scores range from 300 to 850. A FICO score of at least 740 is considered "very good" and is a signal to businesses that you’re likely to pay back loans on time. A score of 800 or higher, which FICO calls “exceptional,” suggests you’re a very low risk.4
How FICO Calculates Credit Scores
There are three major credit reporting bureaus: Experian, Equifax, and TransUnion. Each credit bureau tracks your credit card and loan repayment history, how much debt you have, and other financial identifiers, such as any accounts sent to a collection agency or any bankruptcy filings in the past seven to 10 years.5
The data in your credit report is fed into FICO’s algorithm, which calculates your three-digit score.6 (Anyone can access their three general credit scores through www.annualcreditreport.com
It’s important to check your credit reports periodically to make sure it's up-to-date and doesn’t include any mistakes. Checking your credit report or subscribing to a credit monitoring service can also help you keep an eye out for identity theft.8 Read “How Often Should You Check Your Credit Report & Score?” and “How to Dispute Your Credit Report at All 3 Bureaus.”

Did you know?
As an added security measure to help protect against fraud, American Express reports a reference number to credit bureaus – instead of your actual account number.
What Matters in FICO’s Algorithm
Your FICO score is based on five main elements of varying weight:6
- 35%: Payment history — your track record in making timely payments.
- 30%: Credit utilization — how much of your total available credit you’re using right now.
- 15%: Credit history — how long you’ve had credit accounts.
- 10%: Debt mix — the different types of credit you have, including credit cards, auto loans, personal loans, and mortgages.
- 10%: Credit inquiries — recent applications for new loans or credit cards that trigger a “hard inquiry.”
Because of their high weighting, your payment habits and credit utilization are what move the scoring needle most. A good way to make sure your bills are paid on time is to sign up for automatic bill pay. Regarding credit utilization, it’s a good idea to keep your outstanding balances to no more than 30% of your total available credit — and the lower the percentage, the better.9 To learn more, read “What Affects Your Credit Score?”
The Takeaway
A reality of financial life is that your FICO credit score matters plenty. Businesses use it to decide how likely you are to repay money you owe. A solid FICO credit score may help you get approved for a new loan or credit card and play a role in the terms of the deal. Paying bills on time and not using too much of your available credit are key steps to building an excellent FICO credit score.
1 “Credit Scoring: How Credit Scores Help You
2 “What is a FICO Score and why is it important?
3 “What is an Annual Percentage Rate (APR)?
4 “What is a Credit Score?
5 “What's In Your Credit Report?
6 “What's in my FICO® Scores?
7 “FICO Score Versions
8 “What is identity monitoring or "identity theft" service?
9 “Does Credit Utilization Matter if You Pay in Full?
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