Credit Score USA — What's Good, What's Bad & How to Fix Yours

Most people know their credit score roughly matters. Far fewer understand what it actually costs them. A 140-point difference between a 620 and a 760 on a $300,000 mortgage can mean paying nearly $50,000 more in interest over 30 years. That money goes nowhere — not to equity, not to savings, just to the lender because the score was lower than it could have been.

The good news: credit scores are not fixed. They respond to specific, predictable actions. If you know what drives the number, you can move it — sometimes faster than you expect.

FICO Score Ranges — The Full Breakdown

The score most lenders use is the FICO score, which runs from 300 to 850. Here is how the ranges break down and what each one means in practice. The national average FICO score is 715 as of 2025 data — right at the top of the Good range.

What Builds Your Score — The Five Factors

FICO calculates your score using five factors, each weighted differently. Knowing the weights tells you where to put your energy:

Payment history and credit utilisation together make up 65% of your score. Almost everything else is secondary. This means the two most impactful levers are also the most controllable ones.

What Your Score Costs You in Real Money

Here is the real dollar difference your credit score makes on a $300,000 30-year fixed mortgage at current rates:

Source: Experian 2025 Consumer Credit Review, Freddie Mac PMMS Q1 2026 data.

The gap between 620 and 760 is $268 per month and nearly $96,000 in total interest on the same loan. That is money with no return — not equity, not investment, just cost. And the same principle applies to car loans, personal loans, and credit cards.

There is also a cost most people miss: car insurance. In 47 of 50 states, insurers use credit-based insurance scoring. Consumers with poor credit pay 40–115% more for the same auto coverage than those with exceptional credit. On a $2,000 annual premium, that difference is $800–$2,300 every year.

The Fastest Ways to Improve Your Score

1. Pay down revolving balances — the fastest lever available

Credit utilisation makes up 30% of your score and updates every billing cycle. Keep it below 30% across all cards — ideally below 10% to maximise points. If your card has a $5,000 limit and you carry a $2,500 balance, your utilisation is 50%. Pay that to $500 and your score can jump 30–80 points within 30–60 days.

The average US credit card utilisation hit 36.1% in February 2026 according to FICO data — well above the recommended threshold. Most Americans are leaving points on the table without realising it.

2. Never miss a payment — not even once

Payment history is 35% of your score. A single 30-day late payment can drop your score by 60–110 points and stays on your report for seven years. Set up autopay for at least the minimum on every account. You can always pay more manually — but autopay ensures you never accidentally miss a date.

3. Do not close old credit cards

Closing an account reduces your total available credit (increasing your utilisation ratio) and can shorten your average credit history. If you have an old card you do not use, put one small recurring charge on it and set up autopay. Keeps the account active, keeps the history on your file.

4. Request a credit limit increase

If your issuer increases your limit and your balance stays the same, your utilisation ratio drops immediately. Most major issuers grant limit increases after 6–12 months of on-time payments. A $1,000 increase on a card where you carry a $500 balance drops utilisation from 50% to 33% with no extra payments required.

5. Dispute errors on your credit report

Check all three bureaus — Experian, Equifax, and TransUnion — at AnnualCreditReport.com. Common errors include accounts that are not yours, incorrect late payments, and old debts still appearing after the seven-year limit. Disputing and removing a legitimate error can move your score significantly within 30–45 days.

6. Become an authorised user on a strong account

If a family member with a long-standing, low-balance card adds you as an authorised user, that account's history appears on your credit file. You do not need to use the card. This can add years to your credit history and improve your utilisation ratio simultaneously — one of the fastest legitimate score boosts available.

Worked Example — From Fair to Good in Six Months

Sarah has a 648 FICO score. She has two credit cards: one with a $4,000 limit carrying a $3,200 balance (80% utilisation) and one with a $2,000 limit at zero. She also had one late payment eight months ago.

Here is what she does over six months:

• Month 1: Pays the high card from $3,200 to $1,200. Overall utilisation drops from 53% to 20%.
• Months 2–6: Makes every payment on time. Keeps the second card at zero.
• Month 3: Requests a credit limit increase on the second card from $2,000 to $3,000. Overall utilisation drops further.

After six months, Sarah's score moves from 648 to approximately 710–730. She is now in the Good range — qualifying for better rates on the car loan she had been planning. No new accounts opened, no exotic strategies — just targeting the two biggest drivers.

One important note: once you cross approximately 760–780, the practical difference between that and an 850 is negligible for most financial products. Chase the 760, not the 850.

Frequently Asked Questions

What is a good credit score in the USA?

FICO defines 670–739 as Good, 740–799 as Very Good, and 800+ as Exceptional. For most practical purposes — best mortgage rates, car loan rates, and credit card offers — you want to be above 740. The national average is 715.

Does checking my own credit score lower it?

No. Checking your own score is a soft inquiry with no impact on your FICO score. Only hard inquiries — when a lender pulls your credit for a loan application — can affect your score, and even then only by 5–10 points for 12 months.

How much does a missed payment drop my score?

A single 30-day late payment typically drops a score in the 700s by 60–110 points. The higher your starting score, the larger the drop. The impact lessens over time and disappears after seven years.

Can I get a mortgage with a score below 620?

FHA loans accept scores as low as 500 (with 10% down) and 580 (with 3.5% down). However, rates will be significantly higher. Most advisers recommend spending 6–12 months improving your score before applying if you are below 620.

What is the difference between FICO and VantageScore?

Both use the 300–850 range but weigh factors differently and have different tier boundaries. FICO is used by 90% of top lenders for credit decisions. VantageScore is commonly shown on free monitoring apps like Credit Karma. A 750 VantageScore is not the same as a 750 FICO — focus on FICO for loan planning.

Will closing a credit card hurt my score?

Usually yes — it reduces your available credit (raising utilisation) and can shorten your average credit history. If a card has an annual fee you want to avoid, request a product change to a no-fee card from the same issuer before closing.