Money advice travels through families like recipes: handed down with love, repeated with total confidence, and sometimes plain wrong. The person who told you 'always carry a little balance' wasn't trying to mislead you. They were trying to help with the best information they had. But some of these myths quietly cost people real money for years. So let's clear a few up, gently.

Myth: 'Carrying a balance helps your credit'

This is the big one, and it's everywhere. The idea is that leaving some debt unpaid each month shows the bank you're 'using' credit. It does not. You get the exact same credit-building benefit by paying your statement in full, and you pay zero doing it. Carrying a balance hands the card company your money for nothing. (How Credit Cards Actually Work explains the that makes this possible.)

You never need to carry a balance to build credit. Using the card and paying it off in full builds your score and costs you nothing. Anyone who tells you otherwise is costing you interest.

Myth: 'Checking your own score hurts it'

This one keeps people scared of their own credit. The truth: checking your own credit never lowers your score. Only applying for new credit causes a small, temporary dip, and that's a different action entirely. Hard vs. Soft Credit Inquiries explains the difference.

Myth: 'You have to go into debt to build credit'

A lot of people avoid credit cards entirely because they think building credit means taking on debt. Understandable: if you watched debt hurt your family, steering clear feels safe. But building credit and going into debt aren't the same thing. You can build a strong score by using a card for small purchases and paying it off every month, never owing interest, never carrying debt at all.

A few more that get passed around

  • 'Closing old cards helps.' Usually the opposite; closing a card can lower your score. What Hurts Your Score (and What Doesn't) explains the trap.
  • 'You only have one credit score.' You have several, from different models and bureaus. They tend to move together, so don't sweat small differences.
  • 'Income is part of your score.' It isn't. A modest income with a perfect payment record can outscore a high earner who pays late.
  • 'Debit cards build credit.' They don't. Debit spends your own money, so nothing gets reported as credit history.
Tip
When you hear a credit 'rule,' ask one question: does it require you to pay interest or stay in debt? If yes, be suspicious. Most real credit-building costs you nothing.

None of this means the people who taught you were foolish. They were navigating a confusing system with no map, same as you. Now you've got a slightly better one, and you get to pass that down instead.