Guides Personal Finance

Credit Score Guide

12 min read Educational Guide Updated March 07, 2026
Guide note: Written by the FundJos Editorial Team and reviewed for calculator consistency on March 07, 2026. This guide is for general educational purposes only and is not legal, tax, insurance, investment, or financial advice.

Understanding Credit Scores

Credit scores range from 300-850 and affect loan approvals, interest rates, insurance premiums, and even job applications. Understanding what affects your score helps you maintain excellent credit and save thousands in interest over your lifetime.

Score Factors and Weights

Payment History (35%): On-time payments are critical. One late payment can drop your score 50-100 points. Credit Utilization (30%): Keep below 30%, ideally under 10%. Length of History (15%): Older accounts help. Keep old cards open. Credit Mix (10%): Variety of account types (cards, loans, mortgage). New Credit (10%): Limit applications. Each inquiry drops score slightly.

Credit Score Ranges

Excellent: 800-850 - Best rates, easy approvals. Very Good: 740-799 - Great rates, easy approvals. Good: 670-739 - Competitive rates, good approvals. Fair: 580-669 - Higher rates, some difficulties. Poor: 300-579 - Difficult approvals, very high rates.

Improving Your Score

Pay all bills on time - set up autopay. Reduce credit card balances. Don't close old accounts. Limit credit applications. Check reports for errors and dispute them. Become an authorized user on a good account. Use secured cards if rebuilding.

Common Mistakes

Don't miss payments - ever. Don't max out credit cards. Don't close old accounts. Don't apply for multiple cards at once. Don't ignore your credit report. Don't co-sign for others without understanding the risk.

Key Takeaways

Pay all bills on time. Keep credit utilization below 30%. Don't close old accounts. Limit credit applications. Check reports annually for errors. Building good credit takes time; destroying it takes moments. Use our Credit Score Estimator for guidance.