Key Takeaways
- Checking your own credit score does not lower it; only hard inquiries from lenders do.
- Carrying a credit card balance month to month does not help your score and adds real interest costs.
- Closing old accounts can actually reduce your score by shrinking available credit.
- Income is not a factor in credit score calculations; payment history and utilization are.
- A single missed payment can drop a good score significantly and stay on your report for seven years.
Why credit score myths spread so easily
Credit scores affect mortgage rates, car loan terms, apartment applications, and sometimes even utility deposits. Despite that, most Americans receive no formal instruction on how scores are calculated. The result is a mix of half-truths passed between friends and family, advice that made sense under older scoring models but no longer applies, and some ideas that were never accurate to begin with.
Getting these wrong is not just an abstract problem. A family paying a higher mortgage rate because of a preventable score dip can spend thousands more over a loan's life. A household avoiding credit checks out of fear misses errors on their report that could be dragging their score down for no reason. The myths below are the ones with the most direct financial consequences.
Myth
Checking your own credit score will lower it.
Fact
Checking your own score is a soft inquiry and has no effect on your credit score at all.
Credit inquiries come in two types: soft and hard. Soft inquiries, which include checking your own score, pre-qualification checks by lenders, and background checks by employers, do not appear to other lenders and do not affect your score. Hard inquiries, triggered when a lender reviews your credit after you apply for a loan or card, can lower your score by a few points temporarily. Avoiding free score checks out of fear is a mistake that leaves families unaware of errors or identity theft sitting on their reports.
Myth
You need to carry a balance on your credit card to build credit.
Fact
Paying your statement balance in full each month builds credit just as well, and saves you interest charges.
Credit scoring models, including the widely used FICO score, look at whether you use credit, not whether you pay interest. Paying the full balance before the due date still shows activity on the account, keeps your credit utilization low, and avoids finance charges entirely. Carrying a partial balance month to month costs families real money in interest without providing any scoring benefit. For more on how revolving debt works, see what families should know before carrying a credit card balance.
Myth
Closing old credit cards you no longer use will help your score.
Fact
Closing old accounts typically reduces your available credit, which raises your utilization ratio and can lower your score.
Credit utilization, the share of your total available credit you are currently using, accounts for roughly 30% of a FICO score. When you close an account, that card's credit limit disappears from your total. If you carry any balances elsewhere, your utilization percentage rises immediately. Older accounts also contribute to the average age of your credit history, another scoring factor. Leaving a card open, even unused, is usually better for your score than closing it. If an annual fee is the concern, consider whether a no-fee version of the card is available before closing.
Myth
Your income determines your credit score.
Fact
Income is not included in credit score calculations. Scores are built entirely from credit report data.
The major credit bureaus, Equifax, Experian, and TransUnion, do not collect income information, so it cannot appear in a credit score. FICO scores are calculated from five categories: payment history (35%), amounts owed including utilization (30%), length of credit history (15%), credit mix (10%), and new credit inquiries (10%). A high earner with late payments and maxed-out cards can have a poor score, while someone with a modest income and clean payment history can maintain an excellent one. Lenders do consider income separately when evaluating ability to repay, but that is a lending decision, not a scoring calculation.
Myth
All debt is the same to lenders and credit scoring models.
Fact
Different types of debt, such as mortgages, auto loans, student loans, and revolving credit card debt, are weighted differently and affect your profile in distinct ways.
Credit mix, the variety of account types in your history, makes up about 10% of a FICO score. Installment loans (fixed payments over a set term) and revolving accounts (credit cards with variable balances) behave differently in scoring models. Maxed-out revolving credit hurts your utilization ratio, while a mortgage paid on time over years builds a strong payment history. Understanding how each debt type fits your overall picture matters for families managing multiple obligations. For a full breakdown, see our plain-language guide to household debt types.
What actually moves your score up or down
Payment history carries the most weight in a FICO score. One payment that is 30 or more days late can drop a score with a clean history by 90 to 110 points, according to FICO's published scoring impact data, and the entry stays on your report for seven years. Setting up autopay for at least the minimum amount due on each account prevents that outcome.
Credit utilization is the second-largest factor. Scoring models generally respond well when utilization stays below 30% of your total available credit across all cards, and even better when it stays below 10%. If your total credit limit across all cards is $10,000 and you carry $3,500 in balances, you are at 35%, which is above the threshold where scores typically begin to benefit.
Do not ignore your credit report
Federal law (the Fair Credit Reporting Act) gives every consumer the right to a free credit report from each of the three major bureaus once per year through AnnualCreditReport.com. Errors on credit reports, such as accounts that do not belong to you or payments incorrectly marked late, can suppress your score without you knowing. Reviewing your report regularly is the only way to catch and dispute those mistakes before they affect a loan application.
For families deciding how to pay for everyday spending, how a card is used matters as much as which one you carry. See our breakdown of debit cards vs. credit cards for everyday family spending for a full comparison of how each fits a family budget.
This article is for general informational purposes only and does not constitute personalized financial or legal advice. Consult a licensed financial professional for guidance specific to your situation.