What is a credit score?
A credit score is a three-digit number, typically ranging from 300 to 850, that represents your creditworthiness. Lenders, landlords, and even some employers use this number to evaluate how risky it is to extend credit or trust to you. A higher score means lower risk, which translates to better interest rates, higher credit limits, and easier approvals.
In the United States, the two main scoring models are FICO and VantageScore. Most lenders use FICO scores, which are calculated by the three major credit bureaus: Equifax, Experian, and TransUnion. Your score may differ slightly between bureaus because not all creditors report to all three.
How credit scores are calculated
FICO scores are calculated using five factors, each with a different weight in the formula.
Payment history: 35%
This is the single most important factor. It tracks whether you pay your bills on time. Every on-time payment helps. Every late payment hurts, and the later the payment, the more damage it does. A payment 90 days late hurts more than one 30 days late. Collections, bankruptcies, and foreclosures are the most damaging events and can lower your score by 100+ points.
Credit utilization: 30%
Credit utilization is the percentage of your available credit that you are currently using. If you have credit cards with a combined limit of $10,000 and your total balance is $2,000, your utilization is 20%. Generally, keeping utilization below 30% is good, below 10% is excellent. This factor updates monthly when your credit card company reports your balance.
Length of credit history: 15%
The longer your credit history, the better. This factor considers the age of your oldest account, the age of your newest account, and the average age of all accounts. This is why closing old credit cards can hurt your score, as it removes the history of that account from the average.
Credit mix: 10%
Having different types of credit, such as credit cards (revolving credit), auto loans (installment credit), and mortgages, shows that you can manage various types of debt responsibly. You do not need to open accounts just for the sake of mix, but it helps to have more than just credit cards.
New credit inquiries: 10%
Each time you apply for credit, a hard inquiry appears on your report and temporarily lowers your score by 5-10 points. Multiple inquiries in a short period can signal financial distress. However, rate shopping for a single loan type, like a mortgage, within a 14-45 day window is typically counted as a single inquiry.
Credit score ranges
- 800-850: Exceptional. The best rates and terms available. Only about 20% of consumers reach this range.
- 740-799: Very good. Qualifies for most premium credit products with excellent terms.
- 670-739: Good. Considered an acceptable borrower by most lenders.
- 580-669: Fair. May face higher interest rates and stricter terms. Some lenders may decline applications.
- 300-579: Poor. Difficulty getting approved for most credit products. High interest rates on any approvals.
How to build credit from scratch
If you have no credit history, you face a catch-22: you need credit to build a credit history, but you need a credit history to get credit. Here are the most effective ways to break this cycle.
Secured credit card
A secured credit card requires a cash deposit that serves as your credit limit. Deposit $500, get a $500 limit. Use the card for small purchases and pay the full balance every month. After 6-12 months of responsible use, most issuers upgrade you to an unsecured card and return your deposit.
Become an authorized user
If a parent or family member with good credit adds you as an authorized user on their credit card, their positive payment history on that card may appear on your credit report. You benefit from their good history without needing to use the card yourself.
Credit builder loans
Some banks and fintech companies offer credit builder loans. You make monthly payments into a savings account, and once the loan is paid off, you receive the money. The lender reports your on-time payments to the credit bureaus, building your history.
How to monitor your credit
You are entitled to a free credit report from each bureau annually through AnnualCreditReport.com in the US. Many credit card companies and banks also provide free credit score access through their apps. Check your report at least once a year for errors and dispute any inaccuracies you find.
Consider staggering your free reports throughout the year: check Equifax in January, Experian in May, and TransUnion in September. This way you monitor your credit year-round without paying for a monitoring service.
Common myths debunked
- Checking your own credit lowers your score. False. Checking your own credit is a soft inquiry and has no impact on your score.
- Carrying a balance improves your score. False. Paying your full balance every month is better for both your score and your wallet. You do not need to pay interest to build credit.
- Closing a credit card improves your score. Usually false. Closing a card reduces your available credit and can increase your utilization ratio.
- Income affects your credit score. False. Your salary is not a factor in credit score calculations. A person earning $30,000 with excellent credit habits will have a higher score than someone earning $300,000 who misses payments.
Conclusion
Your credit score is a tool that either works for you or against you. Understanding how it works puts you in control. Start with the fundamentals: pay every bill on time, keep credit card balances low, and let time work in your favor. Building excellent credit is not complicated, but it does require consistency and patience. The effort is worth it because good credit saves you thousands of dollars over your lifetime through lower interest rates and better financial opportunities.
