Account Balance: An account balance is the amount of money present in a financial repository, such as a savings or checking account, at any given moment. The account balance is always the net amount after factoring in all debits and credits. An account balance that falls below zero represents a net debt—for example, when there is an overdraft on a checking account. For financial accounts that have recurring bills, such as an electric bill or a mortgage, an account balance may also reflect an amount owed. Source:

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