Your credit score is a three-digit summary of how reliably you've handled debt in the past, and lenders use it to decide two things: whether to approve you, and what interest rate to charge you. The two most common scoring models are FICO and VantageScore, both running on a 300-850 scale, though the exact cutoffs between tiers differ slightly by model and by which of the three bureaus (Experian, Equifax, TransUnion) pulled the report.
The Score Ranges
| FICO Range | Tier | What It Means |
|---|---|---|
| 800-850 | Exceptional | Best possible rates, easy approvals |
| 740-799 | Very Good | Near-best rates on most products |
| 670-739 | Good | Approved for most loans at fair rates |
| 580-669 | Fair | Approved, but with higher rates/fees |
| 300-579 | Poor | Difficult approval, subprime rates |
Worked Example: The Cost of a Lower Score
Say two people each want a $300,000, 30-year fixed mortgage. Borrower A has a 620 score and qualifies for a 7.5% rate. Borrower B has a 760 score and qualifies for 5.9%.
- Borrower A's monthly payment (7.5%): $2,098
- Borrower B's monthly payment (5.9%): $1,782
- Difference: $316/month, or over $113,000 across 30 years
That gap exists purely because of creditworthiness — same loan amount, same term, same house.
What Actually Builds the Score
Payment history (35%) and amounts owed (30%) together make up two-thirds of a FICO score. The remaining third splits between length of credit history (15%), new credit inquiries (10%), and credit mix — having a blend of revolving credit (cards) and installment loans (auto, mortgage, student) — at 10%.
Figures above are illustrative examples only and not financial advice. Actual rates depend on lender, loan type, down payment, debt-to-income ratio, and market conditions at the time of application.