7 Credit Score Myths That Could Be Costing You Money

Published March 26, 2026 · By CMBMV Staff

Credit score misinformation is everywhere. People believe false things about what damages their score and what builds it, then make financial decisions based on that bad information. A 50-point swing in your score can cost you $10,000+ in higher interest rates over your lifetime. It's worth knowing what's real and what's fiction.

We've pulled data from Equifax, Experian, TransUnion, and the Fair Isaac Corporation (FICO) to separate fact from myth. Here are seven persistent misconceptions that could be costing you money.

Myth 1: Paying Off Your Credit Cards Completely Is Always Best

The Myth: To build a good credit score, you should pay off your credit card balance in full every month and keep the balance at $0. Carrying any balance means you're overspending and harming your score.

The Truth: Paying in full is smart for your wallet—you avoid interest charges—but for credit scoring, a zero balance is actually less beneficial than a small balance. Credit bureaus track your credit utilization ratio (the percentage of available credit you're using). The optimal range for credit scoring is 1–10% utilization. A zero balance signals no activity, which is invisible to scoring models.

Here's the practical example: You have a $5,000 credit limit. Mathematically:

$0 balance: 0% utilization. The card reports no account activity. Minimal scoring impact.
$250 balance (5% utilization): Optimal for credit scoring. You look like an active, responsible borrower who isn't overextended.
$3,500 balance (70% utilization): Signals you're relying heavily on credit. This drops your score 10–20 points.

If you pay your card in full monthly for financial discipline, that's excellent. But if you're paranoid about any balance, you can strategically let a small charge ($20–50) report before paying. It signals creditworthiness without costing you a dime in interest.

Myth 2: Checking Your Own Credit Score Damages It

The Myth: If you check your own credit score, it will immediately drop 5–10 points because lenders see a hard inquiry on your report.

The Truth: Checking your own credit is a soft inquiry and has zero impact on your score. You can check it as often as you want. Hard inquiries (from lenders when you apply for credit) do cause a small, temporary drop of 5–10 points, but they're not triggered by you looking at your score.

You're legally entitled to one free credit report per year from each of the three bureaus via AnnualCreditReport.com. Checking it is completely safe. In fact, you should check it regularly (at least annually) to catch errors or fraud early.

The confusion arises because lenders do perform hard inquiries when you apply for a loan or credit card. But that's their inquiry, not yours. Multiple hard inquiries within 14–45 days typically count as a single inquiry for credit scoring purposes, so shopping for rates across several lenders doesn't multiply the damage.

Myth 3: You Need to Carry Credit Card Debt to Build Credit

The Myth: The only way to prove you can handle debt is to carry a balance and pay interest. If you always pay in full, you're not "building credit."

The Truth: You can build excellent credit while paying in full every month and never paying a cent of interest. Credit scoring models reward responsible credit use—low utilization, on-time payments, and diverse credit types. Paying interest is not a requirement; it's just what happens when you carry a balance.

Paying interest to build credit is economically irrational. If you carry a $1,000 balance at 18% APR for a year, you'll pay $180 in interest to gain 10–15 points on your score. That's a terrible trade. Instead, use a credit card for regular purchases, pay it in full, and you'll build the same score without paying anything.

That said, some types of credit (installment loans, auto loans, mortgages) do have a small positive weight in scoring models because they show you can manage different types of debt. But credit card interest is not the mechanism for this. An installment loan or auto loan will demonstrate that.

Myth 4: A Late Payment Stays on Your Report Forever

The Myth: One late payment will destroy your score permanently. It never goes away, and lenders will always see it.

The Truth: Late payments do appear on your credit report, but not forever. A late payment ages and its impact weakens over time. Most late payments disappear after 7 years. The damage is also heaviest immediately after the late payment and declines with each passing month.

Here's the timeline:

First 30 days after due date: Reported as 30 days late. Score impact: 20–30 points.
60–90 days late: Score impact intensifies to 40–60 points.
120+ days late: Severe damage, 60–100 point drop.
1 year after late payment: Impact softens. The late payment is still visible but accounts for less in scoring models.
3–4 years later: Score recovery is usually well underway if you've made on-time payments since.
7 years: The late payment falls off your report entirely.

The key: one missed payment is damaging, but it's not permanent. If you made a mistake 2–3 years ago and have been on-time ever since, your score has likely recovered substantially. Lenders also look at recency. A late payment from 5 years ago matters far less than one from 5 months ago.

Myth 5: Closing an Old Credit Card Will Improve Your Score

The Myth: Old credit cards clutter your file. If you close accounts you don't use, you'll clean up your report and boost your score.

The Truth: Closing old accounts actually hurts your score in most cases. Here's why: Account age matters (older accounts are weighted positively), and available credit matters (a higher total available credit lowers your overall utilization ratio). Closing an old card removes both benefits.

Example: You have three credit cards:

Card A (opened 2005): $5,000 limit
Card B (opened 2015): $3,000 limit
Card C (opened 2020): $2,000 limit
Total available credit: $10,000

Current balances: $500 total across all cards. Your utilization is 5% ($500 ÷ $10,000). If you close Card A, your available credit drops to $5,000, and your utilization jumps to 10% ($500 ÷ $5,000). Your score drops by 5–10 points because of the higher utilization ratio alone. You also lose the age benefit of that 18-year-old account.

The exception: If a card has a high annual fee and you never use it, closing it makes financial sense. The score impact is small and temporary. But for fee-free cards, leaving them open costs you nothing and helps your score.

Myth 6: Your Income Affects Your Credit Score

The Myth: If you earn a high salary, your credit score will be higher. Low-income people have lower credit scores because of their income level.

The Truth: Income is not factored into credit scoring models at all. FICO and other scoring companies use only payment history, amounts owed, age of accounts, credit mix, and new inquiries. Your salary never appears in the calculation.

This is an important misconception because it lets people off the hook for poor financial management. A CEO with a $500,000 salary and a 620 credit score has made poor credit decisions. A teacher earning $45,000 with a 780 score is managing credit responsibly. Income is irrelevant.

That said, lenders use income during the approval process (to assess debt-to-income ratio and repayment ability), but that's separate from credit scoring. Your credit score is purely about your borrowing behavior and payment history.

Myth 7: Disputing an Error on Your Credit Report Is Risky

The Myth: If you dispute an error on your credit report, the credit bureau might retaliate and damage your score further, or the investigation will make things worse. It's safer to just leave it alone.

The Truth: Disputing errors is your right under the Fair Credit Reporting Act (FCRA). Bureaus cannot retaliate for a good-faith dispute, and investigations often result in the error being removed. You have nothing to lose by disputing.

Here's what actually happens:

You submit a dispute (online, by phone, or by mail) to Equifax, Experian, or TransUnion with documentation of the error.
The bureau investigates (typically 30–45 days) and contacts the data furnisher (the creditor) for verification.
One of three things happens:
- The bureau verifies the information as correct. Your dispute is denied, but you can add a consumer statement to your file.
- The bureau finds the information cannot be verified. It's removed from your report.
- The data furnisher doesn't respond in time. The information must be removed (this happens in about 15–20% of disputes).

If you spot a fraudulent account, a duplicate entry, or false charge-off on your report, disputing is not risky—it's the correct action. Ignoring it means the error stays on your report and damages your score indefinitely.

Frequent disputes (5+ per year) may trigger fraud alerts, but a legitimate dispute about a genuine error is always safe to file.

What Actually Damages Your Credit Score

Now that we've debunked the myths, here's what actually hurts:

Late payments (30+ days overdue): This is the single biggest factor after payment history. Even one is damaging.
High credit utilization (>30%): Carrying balances above 30% of your limits signals financial stress.
Charge-offs and collections: When a lender gives up and sells your debt to a collector, it's catastrophic for your score (100+ point drop).
Bankruptcy: Severe damage, but recoverable over 7–10 years with good behavior afterward.
Too many hard inquiries in a short period: Multiple applications for credit in 30 days can signal desperation, though auto and mortgage inquiries within 45 days typically count as one.
Identity theft and fraud: If someone opens accounts in your name, your score tanks until it's resolved.

What Builds Your Credit Score

On-time payments: This is 35% of your score. Never miss a due date.
Low utilization (1–10%): Keep balances well below your limits.
Account age: Older accounts help. Keeping old cards open is beneficial.
Credit mix: Having different types of accounts (credit cards, installment loans, mortgage) is slightly positive.
Hard inquiries aging off: Inquiries typically fall off after 12 months and stop affecting your score after about 3 months.

Bottom Line: Credit score myths persist because credit scoring is technical and not well understood. The good news: building good credit doesn't require paying interest, carrying balances, or following counterintuitive rules. Pay on time, keep balances low, and don't open accounts you don't need. It's that straightforward.

Frequently Asked Questions

If I pay off a collection account, will it improve my score immediately?

Paying off collections helps, but doesn't remove it from your report. The collection will still appear, but its status changes to "paid." A paid collection is better than an unpaid one, but the damage is already done. The collection ages off your report after 7 years from the original delinquency date.

How long does it take to rebuild credit after a late payment?

Rebuilding starts immediately. One month of on-time payments after a late payment doesn't erase it, but it signals you're back on track. Expect 12–24 months of perfect payments to recover most of the score loss, depending on how recent the late payment is.

Can I negotiate with creditors to remove late payments from my report?

You can ask, but creditors are not obligated to remove accurate information. Some will agree to "pay for delete" arrangements, but most won't. Your best strategy is to dispute the entry if it's inaccurate, or simply wait for it to age off (7 years).

Is there a difference between being "pre-approved" and having a hard inquiry?

Yes. Promotional pre-approvals (letters from credit card companies saying you're "pre-approved") use soft inquiries and don't affect your score. Formal applications trigger hard inquiries. Always read the fine print before applying.

Advertiser Disclosure: Multiple Sources is an independent comparison service. We may receive compensation from lenders when you click links and apply. This does not affect our editorial independence or the accuracy of our credit information.