Definition of Book of Original Entry

A book of original entry is the initial place where a financial transaction is recorded before being posted to the general ledger. In Canadian accounting, it includes journals and daybooks used to document transactions in chronological order. This forms the first step in the accounting cycle and provides a clear audit trail for financial reporting.

For example, when a business in Vancouver makes a sale, it records the transaction in the sales journal—a type of book of original entry—before transferring it to the sales account in the general ledger.

Purpose of Books of Original Entry in Canadian Accounting

Books of original entry play a foundational role in accurate financial documentation and compliance:

1. Chronological Recording – Captures transactions as they occur in date order.
2. Supports Accurate Posting – Ensures proper transfer of data to the general ledger.
3. Provides Audit Trail – Offers traceable documentation for internal reviews and CRA audits.
4. Reduces Errors – Organizes transactions by type, improving bookkeeping clarity.
5. Facilitates Reconciliation – Helps match journal entries with source documents and bank records.

Common Types of Books of Original Entry

General Journal

Records non-routine transactions such as adjustments, accruals, and correcting entries.

Sales Journal

Used to record credit sales of goods or services.

Purchases Journal

Tracks purchases made on credit, often related to inventory or supplies.

Cash Receipts Journal

Logs all incoming cash transactions, including payments from customers and interest income.

Cash Payments Journal

Records all outgoing cash transactions, such as payments to suppliers and payroll.

Petty Cash Book

Used to record minor cash expenditures like office supplies or courier fees.

Advantages and Disadvantages of Using Books of Original Entry

Advantages

• Structured and Organized – Segregates transaction types for clarity.
• Ensures Accuracy – Reduces risk of errors before posting to the ledger.
• Improves Traceability – Enhances transparency and accountability.
• Supports CRA Compliance – Provides documentation required for audits and reporting.

Disadvantages

• Manual Entry Errors – Prone to mistakes if not automated or regularly reviewed.
• Time-Consuming – Requires diligent and timely recording of each transaction.
• Duplicated in Modern Software – Many digital systems bypass traditional books by automating entries directly into ledgers.
• Requires Consistency – Must be maintained accurately to remain reliable.

Related Terms

• Journal Entry – A record of a transaction in a book of original entry.
• General Ledger – The central record where transactions are posted after initial entry.
• Trial Balance – A summary of all ledger balances used to check accounting accuracy.
• Source Document – The original proof of a transaction, such as invoices, receipts, or contracts.

Interesting Fact

Did you know? In Canada, CRA recommends that businesses retain all books of original entry and source documents for at least six years, either in paper or electronic format, for audit and compliance purposes.

Statistic

According to CPA Canada, over 70% of small and mid-sized Canadian businesses still use journals or digital equivalents of books of original entry as part of their standard accounting processes.

Frequently Asked Questions (FAQ)

What is a book of original entry in accounting?

It is the first place where a financial transaction is recorded before being transferred to the general ledger.

Are journals and books of original entry the same?

Yes. Journals are a type of book of original entry used to record specific categories of transactions.

Do businesses still use physical books of original entry?

While many use digital systems, some small businesses and nonprofits continue to use physical or spreadsheet-based journals.

How do books of original entry support audits?

They provide a chronological trail of transactions and link directly to source documents, helping auditors verify financial activity.

Are books of original entry required by law in Canada?

Yes. CRA requires businesses to maintain complete and accurate records, including books of original entry, for at least six years after the end of the last tax year to which they relate.