Updated for 2026
In the U.S., a three-digit number can decide whether you get an apartment, a phone plan, a car loan, or a lower insurance quote. That number is your credit score, and if you just arrived, you start without one. This guide explains what the score is, how it’s calculated, and how newcomers can build one from zero, using data from the Federal Reserve Bank of St. Louis.
What a Credit Score Actually Is
A credit score is a number that summarizes how reliably you’ve handled borrowed money. The most widely used model, FICO, runs from 300 to 850, and higher is better. Lenders, landlords, utilities and even some insurers use it to estimate the risk of lending to you or doing business with you.
It matters beyond loan applications. According to the St. Louis Fed, your score also affects the interest rates you’re offered, your financial flexibility, insurance premiums and rental applications.
Why Immigrants Start at Zero
U.S. credit bureaus (Equifax, Experian and TransUnion) only track U.S. financial behavior. A strong credit history in Mexico, Colombia or Venezuela does not carry over automatically, and you will have no file at all until a U.S. lender reports your first account. Some services, such as Nova Credit, can translate a foreign credit history for specific lenders, but the standard route is building a new U.S. file. See our guide on transferring credit scores to the US.
The 5 Factors That Make Up Your FICO Score
| Factor | Weight | What it means in practice |
|---|---|---|
| Payment history | 35% | Paying every bill on time is the single biggest lever |
| Amounts owed vs. limits | 30% | Keep balances well below your credit limit (under 30% is the common rule of thumb) |
| Length of credit history | 15% | Older accounts help, so don’t rush to close your first card |
| New credit | 10% | Many applications in a short period can hurt your score |
| Types of credit | 10% | A mix of cards and loans helps over time |
Source: Federal Reserve Bank of St. Louis.
What Is NOT in Your Credit Score
Your income. The credit bureaus don’t factor income into your score. Lenders look at it separately when judging whether you can repay.
Your immigration status or visa type. The score is built from your credit accounts, not your status. Whether you can get approved for a specific product is a different question that depends on the lender’s ID rules (SSN or ITIN).
Myths That Cost Newcomers Money
“Checking my score lowers it.” False. Soft inquiries, like checking your own score, don’t affect it. Hard inquiries happen when you apply for new credit and can cause a small, temporary dip.
“I need to carry a balance to build credit.” False. Paying your statement in full each month builds credit and is almost always the best option, since a balance only costs you interest.
“Closing a card improves my score.” Usually false. Closing a card can raise your debt-to-credit ratio and shorten your credit history, which may lower your score.
How to Get Your First Score Without an SSN
- Get an ITIN if you don’t qualify for an SSN. See our step-by-step ITIN guide.
- Open a U.S. bank account. See our comparison of banks for immigrants with no SSN required.
- Apply for a secured card that accepts ITIN. See our guide to the best credit cards for immigrants with no SSN.
- Use it lightly and pay in full. Small recurring charges, paid before the due date.
- Wait for the file to appear. Most people see a first score after several months of reported activity.
How to Check Your Credit Reports for Free
Equifax, Experian and TransUnion each offer free credit reports through AnnualCreditReport.com, and the St. Louis Fed notes they now provide them every week. Reviewing them regularly helps you catch errors or accounts you didn’t open. Note that the bureaus generally don’t give free numerical scores. Those are often available through your bank, card issuer or a nonprofit credit counselor.
Common Mistakes to Avoid
Applying for many cards at once. Each application can add a hard inquiry, and a burst of new credit can look risky to lenders.
Missing a single payment. Payment history carries the most weight, so set up autopay for at least the minimum.
Maxing out a starter card. Even if you pay on time, using most of a $200 limit signals risk. Aim to stay far below it.
Falling for “credit repair” promises. Nobody can legally remove accurate negative information early. Free resources and nonprofit counselors are the safe route.
Frequently Asked Questions
Can I have a credit score with only an ITIN?
Yes. Credit files can be built with an ITIN, as long as the lender reports your account to the bureaus.
Does my score reset if I get an SSN later?
Generally you can ask lenders to update your file to the new number rather than starting over, but confirm the process with each lender.
How often should I check my credit?
Reviewing your reports periodically is wise. Checking your own score is a soft inquiry and does not hurt it.
What score should I aim for?
Higher is better on the 300-850 scale. Many newcomers focus first on simply establishing a file, then on steady on-time payments and low balances.
Written by Hector Reyes, based on 2026 research of Federal Reserve Bank of St. Louis publications. Scoring models and lender policies change; confirm current details with official sources before making financial decisions.
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