A bank statement is a document provided by a bank that summarizes all transactions in a specific account over a set period, usually a month. It includes details such as deposits, withdrawals, fees, and interest earned. Bank statements help account holders track their financial activity and manage their budgets effectively. Typically, bank statements are available in both paper and electronic formats. They often include important information like the account balance at the beginning and end of the statement period. Regularly reviewing bank statements can help identify errors, monitor spending habits, and detect any unauthorized transactions.