Principles of Financial Accounting: The Accounting Equation and Double Entry - Journalizing Transactions Journal Entries

What It Is

Journalizing transactions is the process of recording business events in a company's general journal. This is a crucial step in the accounting cycle, as it provides a permanent record of all financial transactions. If a company buys $10,000 of inventory on credit, the accountant would journalize this transaction by debiting the Inventory account and crediting the Accounts Payable account.

Key Concepts & Formulas

• Debit: A debit is an entry on the left side of a T-account, representing an increase in an asset or expense account, or a decrease in a liability or equity account. Example: Debit Cash $1,000 to record a cash deposit.
• Credit: A credit is an entry on the right side of a T-account, representing an increase in a liability or equity account, or a decrease in an asset or expense account. Example: Credit Accounts Payable $1,000 to record a purchase on credit.
• Assets: Assets are resources owned or controlled by a business, such as Cash, Inventory, and Property, Plant, and Equipment (PP&E). Example: Debit Cash $5,000 to record a cash deposit.
• Liabilities: Liabilities are debts or obligations owed by a business, such as Accounts Payable and Notes Payable. Example: Credit Accounts Payable $5,000 to record a purchase on credit.
• Equity: Equity represents the ownership interest in a business, including Retained Earnings and Common Stock. Example: Debit Retained Earnings $1,000 to record a dividend declaration.
• Gross Profit: Gross Profit = Sales – Cost of Goods Sold (COGS) Example: If Sales = $100,000 and COGS = $60,000, then Gross Profit = $40,000.
• Net Income: Net Income = Gross Profit – Operating Expenses Example: If Gross Profit = $40,000 and Operating Expenses = $20,000, then Net Income = $20,000.

Journal Entry Examples

Example 1: Purchase on Credit

Dr. Inventory $10,000 Cr. Accounts Payable $10,000

Explanation: The company purchases $10,000 of inventory on credit, so the Inventory account is debited to increase its balance, and the Accounts Payable account is credited to increase its balance.

Example 2: Cash Deposit

Dr. Cash $5,000 Cr. Cash $5,000

Explanation: The company deposits $5,000 into its bank account, so the Cash account is debited to increase its balance, and the Cash account is credited to increase its balance (this is a self-deposit, so the credit and debit are equal).

Example 3: Dividend Declaration

Dr. Retained Earnings $1,000 Cr. Dividends $1,000

Explanation: The company declares a dividend of $1,000, so the Retained Earnings account is debited to decrease its balance, and the Dividends account is credited to increase its balance.

Common Mistakes

Mistake 1: Confusing Debits and Credits for Expense Accounts

• Correction: Remember that debits increase asset and expense accounts, and credits increase liability and equity accounts. Example: If a company incurs an expense of $1,000, the correct journal entry is Dr. Expense $1,000, Cr. Cash $1,000.

Mistake 2: Not Following the Debit-Credit Rule for Assets and Liabilities

• Correction: Remember that assets are debited and liabilities are credited. Example: If a company purchases $10,000 of inventory on credit, the correct journal entry is Dr. Inventory $10,000, Cr. Accounts Payable $10,000.

Mistake 3: Not Following the Debit-Credit Rule for Equity Accounts

• Correction: Remember that equity accounts are credited when they increase and debited when they decrease. Example: If a company declares a dividend of $1,000, the correct journal entry is Dr. Retained Earnings $1,000, Cr. Dividends $1,000.

Exam Tips

• A debit increases assets AND expenses – remember ‘ADE’ (Assets, Drawings, Expenses).
• A credit increases liabilities AND equity – remember ‘LIE’ (Liabilities, Income, Equity).
• Be careful with reversing normal balances – remember that assets and expenses have normal debit balances, while liabilities and equity have normal credit balances.

Quick Practice

Problem 1: Purchase on Credit

A company purchases $10,000 of inventory on credit. What is the journal entry?

Answer: Dr. Inventory $10,000, Cr. Accounts Payable $10,000

Explanation: The company purchases $10,000 of inventory on credit, so the Inventory account is debited to increase its balance, and the Accounts Payable account is credited to increase its balance.

Problem 2: Cash Deposit

A company deposits $5,000 into its bank account. What is the journal entry?

Answer: Dr. Cash $5,000, Cr. Cash $5,000

Explanation: The company deposits $5,000 into its bank account, so the Cash account is debited to increase its balance, and the Cash account is credited to increase its balance (this is a self-deposit, so the credit and debit are equal).

Problem 3: Dividend Declaration

A company declares a dividend of $1,000. What is the journal entry?

Answer: Dr. Retained Earnings $1,000, Cr. Dividends $1,000

Explanation: The company declares a dividend of $1,000, so the Retained Earnings account is debited to decrease its balance, and the Dividends account is credited to increase its balance.

Last-Minute Cram Sheet

• Assets are debited and liabilities are credited.
• Equity accounts are credited when they increase and debited when they decrease.
• Gross Profit = Sales – COGS.
• Net Income = Gross Profit – Operating Expenses.
• Dividends are NOT an expense – they go directly to retained earnings.
• Do not confuse debits and credits for expense accounts.
• Do not forget to follow the debit-credit rule for assets and liabilities.
• Do not forget to follow the debit-credit rule for equity accounts.