What can happen if your savings account balance goes below the required minimum daily balance?

The minimum daily balance in banking is the minimum amount on the balance that the bank requires from the account owner, that they should have each day to avoid charging a maintenance fee. The minimum daily balance is a different thing from the average daily balance, which is calculated as the sum of daily balances in a given period divided by the number of days. If it happens that the daily balance falls below the minimum amount required, and payment is made to the account on the same day, the bank will not charge a fee for the service. Otherwise, if the minimum daily balance falls below the minimum, a maintenance fee is charged.