Fortunately, bank overdrafts won't affect your credit score if you resolve them within a timely manner. Once you pay off the overdraft amount and bring your account to at least a zero balance, you can continue using your checking account as normal. Once that happens, the debt will go listed on your credit report.
Similarly one may ask, what happens when you go negative in your bank account?
A transaction that brings your account into a negative balance is called an overdraft. A transaction that would bring your account negative but the bank returns unpaid is called non sufficient funds or insufficient funds transaction. Banks may charge a fee for either an overdraft or a returned unpaid transaction.
How does overdraft protection affect your credit?
Generally speaking, overdraft protection itself – which is when a bank or other financial institution fronts the money for charges that aren't covered by the funds available in a customer's bank account – does not affect your credit score.
Do bounced checks affect your credit?
A bounced check does not directly affect your credit score, but it could have an indirect effect on it. Banks do not report bounced checks to the major credit bureaus - Experian, Equifax and Transunion - so a bounced check won't show up on your credit report and won't impact your credit score.