Credit Score Myths That Are Costing You Money

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Credit scores. Everyone has opinions about them. Your coworker, your uncle, that random guy on Reddit. And a lot of what "everyone knows" about credit scores is just... wrong. Like, not a little wrong. Expensively wrong. The kind of wrong that costs you hundreds or thousands of dollars because you're making decisions based on bad information.

I believed several of these myths myself until embarrassingly recently. So no shade if you do too. Let's just fix it.

The Myths vs. Reality

Here's the quick overview before we dig into each one:

Now let's break these down, because the details matter.

Myth 1: Carrying a Balance Helps Your Credit Score

This one makes me genuinely angry because it's so widespread and so expensive. The idea is that lenders want to see you carry a balance because it shows you're "using" credit. Nope. Your credit card company wants you to carry a balance because they make money off the interest. That's it. That's the whole reason this myth exists.

What FICO actually cares about is your credit utilization ratio - how much of your available credit you're using at any given moment. And here's the kicker: utilization has no memory. It only looks at your most recent balance. So you can use your card, get the statement, and pay it off in full before the due date. Your utilization reports, your score gets the benefit, and you pay $0 in interest. Everyone wins. Except the credit card company.

At an average credit card APR of around 24%, carrying a $3,000 balance costs you roughly $720 a year in interest. For nothing. Absolutely nothing.

Myth 2: Checking Your Own Score Hurts It

This myth scares people away from monitoring their credit, which is the opposite of what you should be doing. When you check your own score through your bank's app, Credit Karma, or AnnualCreditReport.com, it's called a soft inquiry. Soft inquiries do not affect your score. Period. Full stop.

Hard inquiries - the kind that happen when you apply for a credit card, loan, or mortgage - do affect your score. But only by about 3-5 points, and only for about 12 months. And even those are barely a blip in the bigger picture. So yes, check your score. Check it monthly. Check it weekly if you want. Knowledge is literally free here.

Myth 3: Closing Old Credit Cards Is Responsible

"I don't use that card anymore, I should close it." Sounds logical. Is actually counterproductive. Here's why: closing a card does two bad things at once.

First, it reduces your total available credit, which increases your utilization ratio. If you have two cards with $5,000 limits each ($10,000 total) and a $2,000 balance, that's 20% utilization. Close one card and suddenly it's 40% utilization. Same debt. Worse ratio.

Second, over time it hurts your average account age. Length of credit history is 15% of your FICO score. That card you opened in college that's been sitting in a drawer? It's actually helping you by aging your credit profile.

The only time closing a card makes sense is if it has an annual fee you can't justify. And even then, try downgrading to a no-fee version of the same card first. That way you keep the account age and credit limit without paying the fee.

Myth 4: Your Income Affects Your Credit Score

It doesn't. At all. Your income, savings, investments, net worth, job title, employment status - none of these are factors in your FICO score. A barista making $30,000 with perfect payment history and low utilization will have a higher score than a surgeon making $500,000 who maxes out their cards and misses payments.

Your score is built entirely from: payment history (35%), credit utilization (30%), length of history (15%), credit mix (10%), and new inquiries (10%). Income shows up nowhere in that formula. We've got a detailed breakdown of all five factors in our guide to credit scores.

Myth 5: Married Couples Share a Credit Score

There is no joint credit score. Period. When you get married, your credit files don't merge. Each person maintains their own individual credit history and score. If your spouse has a 580 and you have a 780, getting married doesn't average you out to a 680. Your score stays your score.

Now, joint accounts (like a shared credit card or a mortgage) do appear on both people's reports. So if one spouse manages the joint card poorly, it affects both scores. But your individual accounts remain yours alone. This is also why it's important to maintain some credit in your own name, even if you share finances. If something happens to the relationship, you want your own credit history to fall back on.

Myth 6: You Only Have One Credit Score

You actually have dozens. Maybe more. There are multiple FICO score versions (FICO 8, FICO 9, FICO 10, various industry-specific scores for auto and mortgage lending). Then there's VantageScore, which is what Credit Karma uses. Each bureau calculates independently. And different lenders pull from different bureaus using different scoring models.

The score your bank shows you for free might be FICO 8 from TransUnion. The score your mortgage lender uses might be FICO 5 from Equifax. They could easily be 20-40 points apart. Don't panic if the numbers don't match up perfectly. Focus on the trend, not the exact number.

Myth 7: Debit Cards Build Credit

Nope. Debit cards pull directly from your checking account. They have nothing to do with credit reporting. Using your debit card for every purchase might feel financially responsible, but it does zero for your credit score. This is why people with no credit cards often have thin files or no score at all, even if they're great with money.

If you're starting from scratch, you need actual credit accounts. A secured credit card or a credit-builder loan are the usual starting points. We've got a whole guide on building credit from zero if that's where you are.

Myth 8: Paying Off Collections Removes Them

I wish. In most cases, a paid collection stays on your report for 7 years from the date of the original delinquency. Paying it changes the status from "unpaid" to "paid," which looks better to human reviewers (like mortgage underwriters), but older FICO models still ding you for the collection existing at all.

The good news: FICO 9 and VantageScore 3.0 and 4.0 ignore paid collections entirely. And newer FICO 10 models weight them less heavily. So this is getting better over time. Also, medical collections under $500 no longer appear on credit reports at all as of 2023.

If you're negotiating with a collection agency, always try for a "pay for delete" agreement in writing first. Not all agencies will do it, but plenty will if you ask.

Myth 9: You Need to Be in Debt to Have Good Credit

You need credit activity. Not debt. There's a huge difference. Using your credit card for groceries and gas, then paying the full balance every month? That's credit activity with zero debt. And it builds your score beautifully.

The people with the highest credit scores aren't carrying balances. They're using credit regularly, paying in full, keeping old accounts open, and maintaining low utilization. You can have an 800+ score and owe exactly $0 in interest. In fact, that's kind of the ideal.

The Actual FICO Formula (One More Time)

Since we're debunking myths, here's what actually matters, ranked by weight:

• Payment history - 35% - Pay on time. Every time. Set up autopay for the minimum at least
• Credit utilization - 30% - Keep balances below 30% of your limit. Under 10% is better. Under 1% is ideal for score maximization
• Length of credit history - 15% - Keep old accounts open. Time is your friend here
• Credit mix - 10% - A mix of cards, loans, and installment accounts helps. But don't take out debt you don't need
• New credit inquiries - 10% - Don't apply for 5 cards in a month. Space out applications

That's it. No income. No employment. No net worth. No marital status. Just those five things. If you want to understand how these play out in real numbers, check out our guide to reading your credit report to see exactly what lenders are looking at.

And if your score needs some work? Stop paying interest on myths and start focusing on the stuff that actually moves the needle. Your wallet will thank you.