Controlling account definition including break down of areas in the definition. Analyzing the definition of key term often provides more insight about concepts. Controlling account can be defined as: General ledger account, the balance of which (after posting) equals the sum of the balances in its related subsidiary ledger account. Controlling account can be thought of as the main account, that account that can be used to confirm subsidiary accounts. For example, a controlling account can be used to check the subsidiary account for accounts receivable, account receivable ordered by customer the controlling account typically order by date of transaction.