Key Takeaways
Why Credit Myths Persist — and Why They Matter
Credit scores quietly influence some of the largest financial decisions most adults make — mortgage approvals, auto loan rates, even apartment applications. Yet a surprising amount of what people believe about how scores work is simply wrong. These myths spread through word of mouth, outdated advice, and understandable confusion about a system that isn't always transparent.
Acting on bad information can lead to real financial harm: paying unnecessary interest, closing the wrong account at the wrong time, or avoiding credit monitoring out of unfounded fear. The myth-and-fact pairs below address the most common and consequential misconceptions, based on how the major credit scoring models actually work.
This article is for general informational purposes only and does not constitute personalized financial advice. For guidance specific to your situation, consult a qualified financial professional.
Myth
You need to carry a balance on your credit card to build credit.
Fact
Carrying a balance only costs you interest — it does not improve your credit score.
This is one of the most financially damaging credit myths in circulation. Credit scoring models reward you for using credit responsibly, which means making on-time payments — not for paying interest to a lender. Paying your statement balance in full each month demonstrates responsible use and keeps your utilization low, both of which support a healthy score. Carrying a balance forward adds interest charges with no scoring benefit whatsoever.
Myth
Checking your own credit score will lower it.
Fact
Checking your own credit is a 'soft inquiry' and has no effect on your score.
Credit inquiries fall into two categories. A hard inquiry occurs when a lender pulls your report to make a lending decision — this can cause a small, temporary score dip. A soft inquiry occurs when you check your own credit, or when a lender pre-screens you for an offer. Soft inquiries do not affect your score at all. Regularly reviewing your own credit report is actually encouraged, since it's one of the best ways to catch errors or signs of identity theft early.
Myth
Closing a credit card you no longer use is always the responsible move.
Fact
Closing a card can raise your utilization ratio and shorten your credit history, potentially lowering your score.
When you close a card, you lose its available credit limit. If you still carry balances on other cards, your overall utilization ratio rises — and that can drop your score. Additionally, if the closed card was one of your older accounts, closing it can reduce the average age of your credit history over time, which is another factor scoring models consider. This doesn't mean you should keep every card open regardless of fees, but it does mean the decision deserves more thought than it typically gets.
Myth
Your income affects your credit score.
Fact
Income is not a factor in any major credit scoring model.
Credit scores are calculated from data in your credit report: payment history, amounts owed, length of credit history, new credit, and credit mix. Income does not appear in your credit report, and scoring models do not account for it. A high earner with missed payments and maxed-out cards can have a lower score than someone earning far less who manages their accounts consistently. Lenders may consider income separately when evaluating an application, but that is distinct from the score itself.
Myth
One missed payment won't make much difference to your score.
Fact
A single missed payment can cause a significant score drop and stay on your report for up to seven years.
Payment history is the most heavily weighted factor in most scoring models. A payment reported as 30 or more days late can cause a meaningful score decline — the impact tends to be larger the higher your score was to begin with. Equally important: that negative mark can remain visible on your credit report for up to seven years from the date of the missed payment. The good news is that its impact diminishes over time as you build a record of on-time payments afterward, but the initial consequence is real and worth taking seriously.
Myth
Getting married merges your credit scores with your spouse's.
Fact
Marriage does not merge credit histories or scores — each person's credit report remains separate.
Your credit report and score are tied to you as an individual, not to your household. Marriage does not combine your credit history with your spouse's, and one partner's credit issues do not automatically transfer to the other. Where couples can become linked is through joint accounts or co-signed loans — in those cases, both parties' credit is affected by how the account is managed. But simply being married has no direct effect on either person's individual credit profile.
What Good Credit Habits Actually Look Like
Once the myths are out of the way, the picture of healthy credit behavior becomes straightforward. Payment history is the single largest factor in most scoring models — consistently paying on time, even just the minimum, protects that portion of your score. Keeping balances well below your credit limits matters almost as much. Credit utilization — the ratio of your balances to your total available credit — is worth understanding in detail, because it can shift significantly from one billing cycle to the next.
Beyond those two levers, maintaining a mix of account types over time and limiting unnecessary new applications round out the picture. None of this requires carrying debt, spending beyond your means, or gaming the system. Gradual, overlooked habits are often what erode scores more than any single dramatic mistake.
Don't Close Cards Right Before a Major Loan Application
If you're planning to apply for a mortgage, auto loan, or other significant credit product in the near future, think carefully before closing any existing credit accounts. Closing cards just before an application can raise your utilization ratio and reduce your average account age — both of which may lower your score at a critical moment. If you have concerns about specific accounts, consider speaking with a qualified financial adviser before making changes.
If you're also working on the debt side of the equation, the Saving & Debt section covers foundational concepts that complement good credit behavior — including what minimum payments actually cover and why the math often surprises people.