― Here are some tips for what to do when your bank account becomes overdrawn. ∙ Have you ever logged into your online banking to see that your bank balance is red with a nasty looking minus sign in front of it? Ooops! Your bank account is overdrawn. ∙ The overdraft ∙ If your bank account has an overdraft it means that your bank balance has gone below zero. If your bank provides an overdraft, this will be authorized within a certain limit and then interest will be charged. [...].