What Is a Credit Score
Last updated: March 31, 2026
Key Facts
- FICO scores are used in 90% of U.S. lending decisions
- Payment history is the single biggest factor, accounting for 35% of your score
- The average American credit score is approximately 715
- Checking your own credit score is a soft inquiry and does not lower your score
- A score above 740 typically qualifies you for the best interest rates
Overview
Your credit score is essentially a financial report card. It summarizes your entire credit history into a single number that lenders can quickly evaluate. A higher score means lower risk to the lender, which translates to better loan terms and lower interest rates for you. A lower score can mean higher interest rates, lower credit limits, or outright denial.
How Credit Scores Are Calculated
The FICO model, the most widely used scoring system, weighs five factors:
- Payment history (35%): Whether you've paid past credit accounts on time. Even one 30-day late payment can significantly lower your score.
- Amounts owed / Credit utilization (30%): How much of your available credit you're using. Keeping utilization below 30% is good; below 10% is ideal.
- Length of credit history (15%): How long your credit accounts have been open. Older accounts help your score.
- Credit mix (10%): Having a variety of credit types (credit cards, auto loans, mortgage) shows you can manage different kinds of debt.
- New credit (10%): Opening several new accounts in a short period can lower your score temporarily.
Score Ranges
- 800–850: Exceptional
- 740–799: Very Good — qualifies for best rates
- 670–739: Good — considered acceptable by most lenders
- 580–669: Fair — subprime territory, higher interest rates
- 300–579: Poor — difficulty getting approved for credit
How to Improve Your Score
Pay all bills on time (set up autopay), keep credit card balances low, don't close old accounts, limit new credit applications, and check your credit report regularly for errors at annualcreditreport.com (free weekly access).
Related Questions
Does checking my credit score lower it?
No. Checking your own credit score is a "soft inquiry" and has no effect on your score. Only "hard inquiries" — when a lender checks your credit for a loan or credit card application — can temporarily lower your score by a few points.
How long does it take to build credit?
You can establish a credit score within 3–6 months of opening your first credit account. Building a good score (700+) typically takes 1–2 years of responsible credit use. Negative marks like late payments stay on your report for 7 years, while bankruptcies remain for 10 years.
What is the highest credit score possible?
The highest FICO score is 850, and the highest VantageScore is also 850. However, there is virtually no practical difference between a 780 and an 850 — both qualify for the best rates and terms. Only about 1.6% of Americans have a perfect 850 score.
Sources
- Wikipedia — Credit Score in the United States CC-BY-SA-4.0
- FTC — Understanding Your Credit public_domain