A credit score is a three-digit number that summarizes how reliably you have handled borrowed money. Lenders use it to gauge the risk of lending to you, and it influences whether you are approved and at what rate. Common models run roughly 300 to 850, with higher numbers signaling lower risk.
How does a credit score work?
A credit score is calculated from the information in your credit report, the running record of your loans, credit cards, and payment behavior kept by the major bureaus. Scoring models such as FICO and VantageScore feed that data through a formula and produce a number, on common models roughly 300 to 850, that lenders read at a glance to estimate how likely you are to repay.
The number is not fixed. It moves as new information arrives, so a missed payment can pull it down within a month, while months of steady, on-time payments and low balances gradually lift it. There is no single universal score either, since different models and different bureaus can produce slightly different figures for the same person.
What goes into the score
- Payment history: whether you pay on time, which is the single largest factor in most models.
- Amounts owed: how much of your available credit you are using, captured by credit utilization.
- Length of history: how long your accounts have been open, where older is generally better.
- Credit mix: the variety of accounts, such as cards, auto loans, and a mortgage.
- New credit: how many recent applications and new accounts you have opened.
Because payment history and utilization together drive most of the score, the two most powerful habits are simple: never miss a due date, and keep your balances low relative to your limits. The remaining factors, such as the age of your accounts and your mix of credit types, matter less individually but still add up, which is why a long, varied, well-managed history tends to produce the strongest scores over time.
Why lenders care and how it affects you
Your credit score is shorthand for risk. A higher score tells a lender you have repaid reliably before, so they are more willing to approve you and to offer a lower APR. A lower score signals more risk, which can mean denial, a higher rate, or a demand for a larger deposit.
The financial impact is larger than most people realize. On a big loan like a mortgage, the gap between an excellent and a fair score can translate into tens of thousands of dollars in extra interest over the life of the loan. The score also reaches beyond borrowing, since landlords, insurers, and some employers may review it as a proxy for reliability.
For a car loan, an apartment application, or a home purchase, the score often decides not just whether you get a yes but how much that yes costs you every month.
Building a score as a newcomer
Arriving in the US with no credit history is not the same as having bad credit, but it creates a similar hurdle: without a track record, lenders have nothing to score. The fix is to start generating positive history, which most newcomers do with a secured credit card or a starter credit card and a small, easily repaid balance each month.
Pros | Cons |
|---|---|
A strong score unlocks lower rates and larger loans | Takes time to build, often six months or more to generate a first score |
It can lower deposits on housing and utilities | One serious miss can undo months of progress |
It compounds, so early good habits pay off for years | Errors on your report can drag it down unfairly |
It signals reliability well beyond just borrowing | Newcomers start from zero regardless of financial standing abroad |
A credit history built in another country generally does not transfer, so most newcomers effectively begin fresh. The encouraging part is that the same behaviors that build a score work anywhere: pay on time, keep utilization low, and let the account age. Reviewing your credit report regularly also catches errors before they cost you.
Frequently asked questions
On common models that run roughly 300 to 850, scores in the mid-600s and up are generally considered fair to good, and the 700s and above are viewed as very good to excellent. Higher scores unlock the best rates, though each lender sets its own cutoffs.
You typically need at least a few months of reported activity, often around six, before a score can even be generated. Building it into a strong number takes longer, but consistent on-time payments and low balances move it steadily upward.
No. Checking your own score is a soft inquiry and has no effect. Only a hard inquiry, which happens when a lender pulls your report to make a lending decision, can nudge your score down slightly and temporarily.
Generally no. US bureaus do not import foreign credit histories, so most newcomers start fresh. The upside is that a clean start plus good habits can build a solid score within a year or two.
Missed or late payments and high credit utilization do the most damage, since payment history and amounts owed are the two heaviest factors. Applying for a lot of new credit at once and closing old accounts can also weigh it down.
Updated July 21, 2026
Disclaimer
Dara provides this glossary for general educational purposes only. It is not financial, legal, or tax advice, and availability, fees, and terms vary by country and corridor.
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