Accounting CBE Practice Exam 2026 - Free Practice Questions and Study Guide

Source documents are the starting point for recording all business events in the accounting cycle. They capture the actual details of a transaction—date, amounts, parties, and a description—on invoices, receipts, purchase orders, payroll summaries, and similar records. This evidence is used to prepare and support journal entries, providing the data that must be traced through the books. Because every financial event needs to be recorded and substantiated, source documents feed the accounting process for every type of transaction, not just those involving banks. Even in digital systems, electronic records serve the same purpose as proof and input for entries, ensuring accuracy and a clear audit trail. So the statement is true.