A business control account, also referred to as a controlling account, is a general ledger account that functions as a central repository for summarizing and monitoring the balances of related subsidiary accounts. It serves as a control mechanism to ensure accuracy and consolidate financial information. Business control accounts are commonly used to track categories such as accounts receivable, accounts payable, or inventory. By reconciling the balances of subsidiary accounts with their corresponding control accounts, businesses can identify discrepancies and maintain the integrity of their financial records.