Everyone tells you to have a “good credit score.” Fewer people explain what that actually means — or how much a 50-point difference can cost you over the life of a mortgage.
Your credit score is a three-digit number that follows you through almost every major financial decision of your adult life. It determines whether you get approved for an apartment, what interest rate you pay on a car loan, and in some states, whether a potential employer will hire you. Yet most people have only a vague idea of where their score falls — and almost no idea what it would take to improve it.
This guide covers the actual ranges, what they mean in practical terms, and what moves the number up or down. No vague advice. Just the mechanics.
The FICO Score Ranges, Explained
The score most lenders use is your FICO score — developed by the Fair Isaac Corporation and calculated on a scale of 300 to 850. Despite what you may have seen elsewhere, there is no single universal definition of “good.” FICO breaks the scale into five tiers, and lenders set their own thresholds within those ranges.
| Range | Rating | What it means |
|---|---|---|
| 300–579 | Poor | Most lenders will decline. Secured cards and subprime loans only. High deposits required for apartments and utilities. |
| 580–669 | Fair | Some approvals, but with high interest rates and low limits. Considered “subprime” by most mortgage lenders. |
| 670–739 | Good | Near or above average. Approved for most products. Rates are reasonable but not the best available. |
| 740–799 | Very Good | Better-than-average rates on most loans. Approval is easy. This is where real savings start to show up. |
| 800–850 | Exceptional | Best available rates. Instant approvals. Essentially zero friction in any credit-related transaction. |
The average FICO score in the U.S. is currently around 714 — which sits at the low end of “Good.” That means the average American is one bracket away from qualifying for meaningfully better rates on everything from mortgages to car loans.
What a Score Difference Actually Costs You
This is the part most credit articles gloss over. It’s not just about getting approved or denied — it’s about how much you pay over the life of a loan. A 100-point difference in your credit score can translate to tens of thousands of dollars in interest.
Here’s what the numbers look like on a $300,000 30-year mortgage:
| Credit Score | Est. APR | Monthly Payment | Total Interest Paid |
|---|---|---|---|
| 760–850 | 6.4% | $1,876 | $375,360 |
| 700–759 | 6.6% | $1,918 | $390,480 |
| 680–699 | 6.8% | $1,960 | $405,600 |
| 660–679 | 7.1% | $2,016 | $425,760 |
| 620–639 | 7.7% | $2,131 | $467,160 |
The difference between an exceptional score and a poor one on this mortgage: over $91,000 in extra interest paid over 30 years. That’s not a rounding error — that’s a car, a college fund, or years of retirement contributions.
What Actually Makes Up Your Credit Score
FICO calculates your score from five categories. Understanding the weight of each one tells you exactly where to focus your energy.
Two categories dominate: payment history at 35% and amounts owed at 30%. Together, they make up 65% of your score. Everything else is secondary. If you’re trying to move your score, those two levers are where to start.
Payment history (35%)
A single missed payment can drop your score by 60–110 points depending on how high your score was to begin with — and it stays on your report for seven years. Paying on time, every time, is the single most impactful credit habit you can build. If you struggle to remember due dates, set up autopay for at least the minimum on every account.
Amounts owed / credit utilization (30%)
This is the ratio of your current credit card balances to your total credit limits. If you have a $10,000 limit across all your cards and carry $3,500 in balances, your utilization is 35%. Most scoring models reward keeping this number below 30%, and the best scores typically show utilization below 10%. This is also one of the fastest factors to improve — paying down balances can raise your score within a single billing cycle.
Length of credit history (15%)
The longer your accounts have been open, the better. This is why closing an old credit card — even one you rarely use — can actually hurt your score. It reduces your average account age and potentially your total available credit, both of which the scoring model dislikes.
Credit mix (10%)
Having a mix of revolving credit (credit cards) and installment loans (auto, mortgage, student) signals that you can manage different types of debt responsibly. You don’t need to take on debt you don’t need just to improve your mix — but it explains why someone with only credit cards and no installment history might plateau below 800.
New credit (10%)
Every time you apply for new credit, a hard inquiry appears on your report and can temporarily drop your score by 5–10 points. Multiple applications in a short window look risky to lenders. That said, the impact is small and short-lived — scores typically recover within a few months if everything else stays consistent.
VantageScore vs. FICO: Does It Matter?
You’ll notice that many free credit monitoring services — Credit Karma, NerdWallet, your bank’s app — show you a VantageScore rather than a FICO score. Both use a 300–850 scale and the same general categories, but they weight the factors differently and can produce different numbers for the same person.
The practical difference: most mortgage lenders, auto lenders, and major credit card issuers use FICO. VantageScore is widely used for educational purposes and by some newer fintech lenders. Your VantageScore is useful for tracking trends over time — if it’s going up, your FICO is probably going up too — but the number you’ll be judged on for a mortgage is almost certainly a FICO variant.
Common Moves That Hurt Your Score Without You Realizing
- Closing old accounts — Reduces average account age and total available credit, both of which negatively affect your score.
- Maxing out a card even if you pay it in full — Utilization is measured at statement closing date, not payment date. High balances at that snapshot hurt your score even if you pay immediately after.
- Co-signing a loan — The entire debt appears on your credit report. If the other person misses a payment, your score takes the hit.
- Applying for multiple cards at once — Each application triggers a hard inquiry. Several in a short window signals desperation for credit.
- Ignoring a small collection account — A $35 medical bill sent to collections can tank a high score more than a larger delinquency on a lower score. Dispute errors and pay off collections promptly.
How to Check Your Score for Free
You are legally entitled to one free credit report per year from each of the three major bureaus — Equifax, Experian, and TransUnion — through AnnualCreditReport.com. This gives you your full report but not your actual score.
For the score itself, several free options exist. Many major banks and credit card issuers now display your FICO score directly in their app. Credit Karma and Credit Sesame offer free VantageScores with regular updates. Experian’s free tier provides a monthly FICO score directly from the bureau.
Check your full report at least once a year specifically to look for errors — incorrect late payments, accounts you didn’t open, or balances that don’t match your records. Errors on credit reports are more common than most people expect, and disputing them is free.
Frequently Asked Questions
For a conventional mortgage, most lenders require a minimum score of 620, though you’ll get significantly better rates above 740. FHA loans are available with scores as low as 580 with a 3.5% down payment, or 500 with a 10% down payment. VA loans have no official minimum score requirement, though individual lenders typically set their own floors around 580–620.
With consistent on-time payments and reduced utilization, most people can move from the fair range (580–669) to good (670–739) within 12 to 24 months. The exact timeline depends on what’s dragging the score down — negative items like late payments have diminishing impact over time, but they don’t disappear until seven years after the original delinquency date.
No. Checking your own credit score is a “soft inquiry” and has zero impact on your score. Only “hard inquiries” — triggered when a lender pulls your report as part of an application — affect your score, and even those typically drop it by fewer than 10 points.
Not meaningfully. Most lenders reserve their best rates for scores of 760 and above. There’s rarely a pricing difference between a 760 and an 820 — both fall into the same “best borrower” tier. Chasing a perfect 850 beyond the 760–780 range is more of a vanity goal than a financial one.
Yes. Income is not a factor in your credit score calculation at all. A surgeon who misses payments has a lower score than a teacher who never misses one. Credit scores measure how you manage debt — not how much you earn. This surprises many high earners who assume a large salary protects them.
The Bottom Line
A “good” credit score means different things in different contexts. For a credit card, 670 might be enough. For the best mortgage rate in the country, you need 760 or above. The ranges matter less than understanding which tier you’re in and what it costs you to stay there versus move up.
The two things that move the needle most are also the two things entirely within your control: pay on time, every time — and keep your credit card balances well below their limits. Everything else is secondary. Master those two habits and your score will, over time, take care of itself.