A minimum balance is the lowest amount of money you need to keep in your bank account to avoid fees or qualify for certain benefits. The required amount varies by bank and account type, ranging from $0 to several thousand dollars.

If your balance drops below this threshold at any point during the month (or even for a single day, depending on the bank's policy), you might get hit with a monthly maintenance fee, typically $10-$15. Some accounts waive the minimum balance requirement if you meet other criteria, like setting up direct deposit or maintaining a certain number of transactions. Understanding your account's minimum balance requirement helps you avoid unnecessary fees and keep more of your money working for you. If maintaining a minimum balance feels like a stretch, look for banks or credit unions offering accounts with no minimum balance requirements.