The balance of an account when it is initially opened, or the balance carried over from the previous accounting period, (i.e. last accounting periods’ closing balance.)
The amount of money held in a specific account (e.g. a bank account) at the beginning of an Accounting Period. It should be the same as the Closing Balance from the previous Accounting Period.
In bookkeeping (accounting), the balance of each account at the beginning of an accounting period. For example, the balance in the bank account on January 1st of a new accounting year.
Opening Balance is the amount of cash on-hand at the start of each month before any sales have occurred or any other inflow of cash on a Cash Flow Statement. The Opening Balance is always equal to the previous month's Ending Balance.