Accounting journal entries

What are Accounting Journal Entries?

An accounting journal entry is the method used to enter an accounting transaction into the accounting records of a business. The accounting records are aggregated into the general ledger, or the journal entries may be recorded in a variety of sub-ledgers, which are later rolled up into the general ledger. This information is then used to construct financial statements as of the end of a reporting period.

Whenever you create an accounting transaction, at least two accounts are always impacted, with a debit entry being recorded against one account and a credit entry against the other account.

Journal Entry Rules

There must be a minimum of two line items in a journal entry, though there is no upper limit to the number of line items that can be included. A two-line journal entry is known as a simple journal entry, while one containing more line items is called a compound journal entry.

The totals of the debits and credits for any transaction must always equal each other, so that an accounting transaction is always said to be "in balance." If a transaction were not in balance, then it would not be possible to create financial statements. Thus, the use of debits and credits in a two-column transaction recording format is the most essential of all controls over accounting accuracy.

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Journal Entry Best Practices

A company may use a great many journal entries in just a single reporting period, so it is better to use a larger number of simple journal entries than a smaller number of compound journal entries, in order to clarify why the entries are being made. This is useful when journal entries are being researched at a later date, and especially when they are being reviewed by auditors.

Who Creates Journal Entries?

In a smaller accounting environment, the bookkeeper may record journal entries. In a larger company, a general ledger accountant is typically responsible for recording journal entries, thereby providing some control over the manner in which journal entries are recorded.

Format of the Journal Entry

At a minimum, an accounting journal entry should contain the following components:

  • The accounts into which the debits and credits are to be recorded

  • The date of the entry

  • The accounting period in which the journal entry should be recorded

  • The name of the person recording the entry

  • Any managerial authorization(s)

  • A unique number to identify the journal entry

  • Whether the entry is a one-time entry, a recurring entry, or a reversing entry.

  • It may be necessary to attach extensive documentation to the journal entry, to prove why it is being recorded; at a minimum, provide a brief description of the journal entry.

Special Types of Accounting Journal Entries

There are two special types of accounting journal entries, which are the reversing entry and the recurring entry.

Reversing Journal Entry

A reversing journal entry is one that is either reversed manually in the following reporting period, or which is automatically reversed by the accounting software in the following reporting period.

Recurring Journal Entry

A recurring journal entry is one that repeats in every successive reporting period, until a termination date is reached. This can be done manually, or can be set up to run automatically in an accounting software system. For example, the following recurring journal entry could be used to charge the same amount of prepaid advertising to expense in each successive month for a year. In this case, the business paid $4,800 up front for a one-year advertising campaign, which was initially recorded as a prepaid expense (which is a current asset). In each month, 1/12th of this amount is charged to expense:

Example of an Accounting Journal Entry

Arnold Corporation sells a product to a customer for $1,000 in cash. This results in revenue of $1,000 and cash of $1,000. Arnold must record an increase of the cash (asset) account with a debit, and an increase of the revenue account with a credit. The entry is:

  Debit Credit
Cash 1,000  
     Revenue   1,000


Arnold Corporation also buys a machine for $15,000 on credit. This results in an addition to the Machinery fixed assets account with a debit, and an increase in the accounts payable (liability) account with a credit. The entry is:

  Debit Credit
Machinery - Fixed Assets 15,000  
     Accounts Payable   15,000

The Unbalanced Journal Entry

If a journal entry is created where the debit and credit totals are not the same, this is called an unbalanced journal entry. If you attempt to enter an unbalanced journal entry into a computer accounting system, the error-checking controls in the software will likely reject the entry. However, if you create an unbalanced journal entry in a manual accounting system, the result will be an unbalanced trial balance, which in turn means that the balance sheet will not balance. The following journal entry is unbalanced; note that the debit total is less than the credit total. In such cases, you must correct the underlying unbalanced journal entry before you can issue financial statements.

  Debit Credit
Machinery - Fixed Assets 10,000  
     Accounts Payable   15,000

Journal Entry Fraud

It is much more common for accountants to commit fraud through the use of journal entries than through the use of such common transactions as recording supplier invoices and creating customer invoices. The reason is that these more common transactions have a system of controls built up around them that is designed to detect a variety of issues. Conversely, there are fewer controls over journal entries, which makes it easier for someone to create a fraudulent transaction. These transactions are particularly difficult to spot if the amount recorded is considered immaterial, in which case auditors are unlikely to spot the transgressions.

Related Articles

Examples of Journal Entries

How to Write an Accounting Journal Entry

Simple Journal Entry

Types of Adjusting Entries