What are the three-digit identifier codes assigned to financial transactions called?

The term "account codes" refers to the specific three-digit identifier codes that are assigned to financial transactions. These codes serve the important function of categorizing and tracking transactions within a financial system. They help organizations accurately record, analyze, and report their financial activity by assigning unique identifiers to different types of transactions, facilitating better financial management and accountability.

Using account codes allows for consistent record-keeping and provides a clear structure for financial reporting. This standardization is crucial for auditors and stakeholders alike in assessing the financial health of an organization. Other terms such as transaction codes, identifier codes, and financial codes may convey related concepts but do not specifically identify the category of codes that are formally referred to as account codes within financial systems. Therefore, account codes is the most precise answer for describing these three-digit identifiers.