Key Takeaways
- Carrying a credit card balance does not improve your credit score — it only costs you interest.
- Closing old credit accounts can hurt your score by reducing available credit and shortening credit history.
- Checking your own credit score is a soft inquiry and never lowers your score.
- A high income has no direct effect on your credit score — only borrowing behavior does.
- Even one missed payment can significantly damage your score for years.
Why Credit Myths Are So Persistent
Credit scores influence some of the most consequential financial decisions Americans face — mortgage approvals, auto loan rates, rental applications, and even some employment screenings. Yet the way scoring actually works is poorly understood by most people, and a handful of plausible-sounding myths fill the gap.
Part of the problem is that credit scoring models are proprietary. Lenders and scoring companies don't publish their exact formulas, which leaves room for speculation to harden into conventional wisdom. Some myths contain a kernel of truth that gets distorted over time. Others simply sound logical but contradict how the system actually works.
The myths below are among the most widely repeated — and the ones most likely to lead well-intentioned people into decisions that quietly damage their financial standing. Understanding them isn't just academic: acting on bad credit information has real costs in the form of higher rates, denied applications, and unnecessary debt. This article is general financial education and does not constitute personalized financial advice. Consult a licensed financial professional for guidance specific to your situation.
Myth
Carrying a small balance on your credit card each month helps build your credit score.
Fact
Paying your balance in full every month is better for your score and avoids interest charges entirely.
This myth likely persists because people confuse "using credit" with "carrying debt." Scoring models reward responsible credit use — meaning you borrow and repay on time — but they have no preference for whether you carry a balance. A card used regularly and paid in full demonstrates the same positive payment behavior as one with a revolving balance, without the added interest cost. See how minimum payments compound over time for a clearer picture of the real expense.
Myth
Closing a credit card you no longer use will help your credit score.
Fact
Closing an account typically lowers your score by reducing total available credit and can shorten the average age of your accounts.
Two important credit factors are affected when you close a card: credit utilization (the ratio of what you owe to your total available credit) and length of credit history. Closing a card reduces your total available credit, which — if you carry balances elsewhere — pushes your utilization ratio higher. It may also eliminate a long-standing account from your active profile. Learn more about how utilization is calculated and why it matters.
Myth
Checking your own credit score will lower it.
Fact
Checking your own score is a soft inquiry and has zero impact on your credit score.
There are two types of credit checks: hard inquiries and soft inquiries. When you check your own score — through a credit bureau, a bank's free tool, or an authorized monitoring service — it registers as a soft inquiry, which does not affect your score at all. Hard inquiries occur when a lender reviews your credit as part of a new credit application, and those can have a minor, temporary effect. For a full breakdown, see hard inquiries vs. soft inquiries explained.
Myth
Your income determines your credit score.
Fact
Income is not a factor in any major credit scoring model. Only borrowing and repayment behavior matters.
Credit scores are calculated from information in your credit reports — things like payment history, amounts owed, length of credit history, new credit, and credit mix. Your salary, employment status, and net worth do not appear in credit reports and have no direct effect on scoring. A high-income earner who misses payments will have a lower score than a modest earner who pays every bill on time. Lenders may consider income separately when assessing affordability, but that is distinct from your credit score.
Myth
A late payment is only a minor setback that clears up in a few months.
Fact
A single missed payment can damage your score significantly and remain on your report for up to seven years.
Payment history is the single largest factor in most credit scoring models, typically accounting for roughly 35% of a FICO score. A payment reported as 30 days late by a lender can drop a score by a meaningful number of points, and the negative mark stays on your credit report for up to seven years — though its effect diminishes over time as positive behavior accumulates. What actually happens when you miss a payment walks through the full timeline.
Myth
You only have one credit score, and all lenders see the same number.
Fact
You have multiple credit scores, and they can vary depending on the bureau, the scoring model, and the lender's purpose.
The three major credit bureaus — Equifax, Experian, and TransUnion — maintain separate files on you, and the information they hold may differ slightly. Multiple scoring models also exist (including various FICO versions and VantageScore), and lenders choose which one to use based on their industry and underwriting preferences. An auto lender may pull a different score variant than a mortgage lender. Errors in one bureau's file won't automatically appear in another's, which is one reason to monitor all three reports and dispute errors promptly.
What Actually Moves Your Credit Score
Once the myths are cleared away, the picture of what actually drives your score becomes straightforward. Payment history carries the most weight — paying every bill on time, every month, is the single most effective credit-building habit. Credit utilization is the second major lever, and it's one of the most misunderstood factors. See the full guide to credit utilization for a detailed breakdown.
Misconceptions Here Carry Real Financial Costs
Acting on inaccurate credit beliefs can cost you hundreds or thousands of dollars in higher interest rates, denied loan applications, or unnecessary fees. The myths debunked here are among the most commonly repeated — and the most damaging. If you're unsure how a financial decision will affect your credit, consulting a nonprofit credit counselor or licensed financial adviser is always a sound step.
Beyond those two factors, the length of your credit history, the variety of credit types you manage (cards, installment loans, etc.), and the number of recent applications all play supporting roles. None of these require complicated strategies — consistent, on-time payments and keeping balances low relative to your limits will move the needle more reliably than any tactic.
If you suspect errors are holding your score back, the dispute process is a formal, consumer-protected right worth using. Credit report errors are more common than most people realize, and correcting them can produce meaningful score improvements. Managing credit well also pairs naturally with broader financial habits — the Budgeting Basics hub covers practical strategies for keeping spending in check so balances stay manageable.
Closing Cards Can Backfire Quickly
Closing a credit card — especially one with a long history or a large credit limit — can raise your utilization ratio and shorten your average account age simultaneously. Both changes can reduce your score, sometimes sharply. Before closing any account, consider the potential downstream effect on your credit profile.