Credit Score Myths That Cost Immigrants Money

If you moved to the US in the last few years, most of what you’ve absorbed about credit scores came secondhand — from relatives, coworkers, or forum threads written for a US-born audience that already had a 10-year credit file. Some of that advice is outdated. Some of it was never true. And a few of these myths specifically penalize people who are building credit from zero, which describes most immigrants in their first two to five years in the US.

Myth 1: “Carrying a balance builds a better score than paying in full”

This is the single most expensive myth in circulation, and it’s the one relatives repeat most confidently. The idea is that revolving a balance and paying interest “shows the bank you’re a real borrower.” FICO scoring has no concept of interest paid. What it measures is credit utilization — your reported balance divided by your credit limit — which is the second-largest factor in a FICO score at roughly 30% of the total, right behind payment history at about 35%.

Worked example. Say you have two cards with a combined $10,000 in credit limits. You carry a $6,000 balance across them because a coworker told you it “looks active.” Your utilization is 60% ($6,000 ÷ $10,000), which sits in a range that meaningfully suppresses your score. Pay that down to $2,000 and your utilization drops to 20% — with no other change to your credit file, that swing alone is commonly worth 20-50+ points depending on where your score started. You also stop paying interest, which on a $6,000 balance at a typical 24%+ APR is real money: over $120 a month if you’re only making minimum payments.

The habit that actually helps: pay your statement balance in full every month, before the due date. If you want utilization to look even lower on the date your card reports to the bureaus (usually your statement closing date, not the due date), pay down the balance a few days before that closing date.

Myth 2: “Closing a card you don’t use protects your score”

The instinct here is reasonable — an unused card feels like a liability, especially if it carries an annual fee. But closing it usually does two things to your score, both negative: it removes that card’s available credit from your utilization math (raising your utilization ratio on the cards that remain), and if it’s your oldest account, it starts a slow decline in your average age of accounts, which feeds into the 15% of your FICO score tied to length of credit history.

For someone one to three years into a US credit file, this myth is especially costly, because your average account age is already short. Losing your oldest line resets the clock further than it would for someone with 15 years of history to draw from. If the card has no annual fee, the better move is almost always to keep it open and put one small recurring charge on it (a subscription, for example) so it stays active.

Myth 3: “My immigration status affects my score”

It doesn’t — but this myth causes two opposite mistakes. Some people assume a lender can see their visa category on their credit report and avoid applying for credit at all, even when they’d qualify. Others assume that once their status changes (OPT to H1B, H1B to green card), their score will jump or reset. Neither is true. Credit bureau files are keyed to your Social Security number and identifying information, not to USCIS data — there’s no field for visa category, and a status change doesn’t touch your file at all.

What can legally factor into a lender’s decision is different: under the Equal Credit Opportunity Act’s Regulation B (12 CFR § 1002.6(b)(7)), a creditor is permitted to consider your immigration status when it’s relevant to their ability to collect on the debt — this is a separate question from what’s on your credit report, and it’s decided at underwriting, not baked into your score.

Myth 4: “A co-signer’s good credit transfers to me”

Being an authorized user or co-applicant can help you build history faster than starting from nothing, but it doesn’t average two people’s scores together or “transfer” a score. What happens is narrower: the account’s payment history and age get added to your own credit file, and your score is then recalculated based on your entire file, including that account. If the primary user later misses payments or runs up a high balance, that damages your score too — you’re not a passenger, you’re exposed to their behavior on that specific account.

Myth 5: “You need to carry multiple credit cards to have a good score”

Credit mix is real, but it’s only about 10% of a FICO score — the smallest of the five factors, well behind payment history and utilization. Someone with a single well-managed card, paid in full every month for two years, will out-score someone with four cards and one missed payment. Don’t open accounts you don’t need chasing this factor; it moves the needle the least.

What actually moves your score, in order

1. Pay everything on time, every time (~35% of your score). Autopay for at least the minimum on every account removes the single biggest risk.
2. Keep utilization low (~30%). Under 30% is commonly cited as safe; under 10% is where the strongest scores tend to sit.
3. Let accounts age (~15%). Don’t close your oldest card. Don’t open new ones unless you need the credit.
4. Apply for new credit sparingly (~10%). Each hard inquiry has a small, temporary effect — a flurry of applications in a short window compounds that.
5. Credit mix (~10%) is the smallest factor and not worth engineering.

If you’re starting from no US credit history at all, none of this replaces the first step: opening a starter product — a secured card or a credit-builder loan — and reporting it consistently, per the six-month build timeline. Once you have a file to work with, these five habits are what determine whether that file turns into a strong score or a mediocre one.