US Credit Score Guide (2026)
FICO vs VantageScore, Experian vs Equifax vs TransUnion — how the US credit system actually works.
A US credit score unlocks everything from a mortgage rate to an apartment lease to, in most states, your auto insurance premium. The US system is built on three bureaus (Experian, Equifax, TransUnion) that independently collect credit data, and two main scoring models (FICO and VantageScore) that turn that data into a 300–850 number. Below we cover the basics of the system, how to check your score free, what "good" actually means, and practical ways to improve it.
Credit score topics
Improve Your Score
90-day action plan. Specific steps, expected point gains, and timelines.
90-day plan →What's a Good Score?
Exact ranges, what each unlocks, and the gap between 670 and 780.
Score ranges →How to read your credit report → · The 5 FICO factors explained →
FICO score ranges
The three US credit bureaus
- Experian
- Largest by consumer reach. Owns the "FICO Score" product licensing relationship. Headquartered in Dublin, Ireland (US subsidiary in Costa Mesa, CA).
- Equifax
- Best known for the 2017 breach affecting 147 million US consumers. Required to offer 7 years of free weekly credit reports as part of settlement. Headquartered in Atlanta.
- TransUnion
- Headquartered in Chicago. Provides free credit lock tools similar to credit freezes. Often used alongside the other two to cross-check errors.
Each bureau holds slightly different data on you. Lenders may pull from one, two, or all three depending on the product. Mortgage lenders pull all three; credit card issuers usually pull one; auto lenders vary.
How to check your credit for free
- Credit reports: annualcreditreport.com — free from each bureau. Currently weekly through 2026.
- FICO scores: most major banks show yours free in their app. Discover shows yours to anyone (no account needed).
- VantageScore: Credit Karma, NerdWallet, WalletHub — all free.
- Alerts: set up free alerts at each bureau or via Credit Karma for changes and new inquiries.
Credit score questions
A credit score is a 3-digit number (300–850) that predicts how likely you are to repay a debt. US lenders use it to decide whether to approve you and what interest rate to charge. FICO 8 is the most widely used score; VantageScore is the other major model. Both range 300–850 but weight factors differently.
Most US banks (Chase, Wells Fargo, Capital One, Discover, Amex, Bank of America) show your FICO score free inside their mobile app, even if you don't have a credit card with them. Credit Karma and similar services show your VantageScore for free. For your official credit reports, use annualcreditreport.com (one free report per bureau per year, currently weekly via Q4 2026).
670–739 is considered 'good,' 740–799 is 'very good,' and 800+ is 'exceptional.' These brackets unlock progressively better credit card offers and loan rates. Below 580 is 'poor' and typically restricts you to secured cards and subprime loans.
Realistic gains of 20–50 points are possible in 30–90 days through: paying down credit card balances to under 10% utilization, disputing any errors on your report, and becoming an authorized user on an established account. Bigger lifts (100+ points) require 6–18 months of consistent on-time payments.
No. Checking your own credit is a 'soft inquiry' and does not affect your score. Only hard inquiries from applications for new credit lower your score (by about 5 points, recovering in 3–6 months).
7 years from the date of the original delinquency. Their impact decreases over time — a 30-day late from 6 years ago affects your score much less than one from 6 months ago.
Under 30% total and per-card; ideally under 10%. Utilization is calculated as (current balance / credit limit) and is reported to bureaus at statement close, not when you pay. Pay down balances before the statement cuts for the biggest score impact.
Yes, under the Fair Credit Reporting Act (FCRA). File disputes directly with the credit bureau (Experian, Equifax, TransUnion) — online is fastest. They must investigate within 30 days. Roughly 25% of US consumers have at least one error on their reports, per an FTC study.
Two different scoring models built on the same underlying credit bureau data. FICO is used by 90%+ of US lenders for credit decisions; VantageScore is used by many free consumer monitoring services. VantageScore is often 20–50 points higher than FICO for the same person. Always use your FICO as the score that actually matters.
Yes for most major life purchases in the US: credit cards, auto loans, mortgages, renting an apartment in many markets, utilities without deposits, some employment (financial services, federal jobs). Insurance rates are also affected by credit-based insurance score in 47 states.