What is an Audit Trail?

Audit Trail

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Audit Trail

An audit trail is a chronological record of financial transactions and activities that provide documentary evidence of an organization’s operations and processes. It enables the tracking of a transaction from its initiation, through processing, and finally to its completion. Audit trails are essential in financial accounting, internal control systems, and regulatory compliance as they help ensure the accuracy, integrity, and transparency of financial information.

An effective audit trail includes documentation such as invoices, receipts, journal entries, ledgers, and any other relevant financial records. The main objectives of an audit trail are to:

  • Facilitate the tracing of transactions to their source documents, which helps to verify the accuracy and completeness of accounting records.
  • Detect errors, fraud, or irregularities in financial reporting by providing a clear path for the reconstruction of transactions.
  • Ensure accountability and responsibility for the creation, modification, or deletion of financial transactions.
  • Aid in the monitoring of internal controls and adherence to regulatory requirements.
  • Assist external auditors in their examination and assessment of an organization’s financial statements and internal control systems.

By maintaining a robust audit trail, organizations can improve their financial management, reduce the risk of errors or fraud, and enhance their overall internal control environment.

Example of an Audit Trail

Let’s take a look at an example of an audit trail for a purchase transaction in a small business.

  • Purchase Requisition: An employee identifies the need for a new office chair and submits a purchase requisition form to the purchasing department. This form includes details such as the requested item, quantity, and justification for the purchase.
  • Purchase Order: The purchasing department reviews the requisition and, after obtaining approval from the appropriate manager, creates a purchase order (PO). The PO includes the vendor’s information, item description, quantity, price, and terms of payment. The purchasing department sends the PO to the vendor.
  • Goods Receipt: The vendor delivers the office chair, and the receiving department verifies the quantity and quality of the product against the PO. The receiving department records the receipt of the chair and prepares a goods receipt document.
  • Invoice: The vendor sends an invoice to the accounts payable department, which includes details such as the invoice date, invoice number, PO number, item description, quantity, price, and payment terms.
  • Payment: The accounts payable department matches the invoice with the PO and goods receipt document to ensure the accuracy and completeness of the transaction. After verifying the details, the accounts payable department records the payment in the general ledger and processes the payment to the vendor.
  • Journal Entries: Throughout the process, relevant journal entries are recorded in the general ledger, reflecting the purchase, receipt of goods, and payment transactions.

The audit trail in this example consists of the purchase requisition, purchase order, goods receipt document, invoice, payment record, and related journal entries in the general ledger. In the event of an audit, this documentation provides a clear, chronological record of the transaction, allowing auditors to trace the entire process from the initial request to the final payment.

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