The Double Entry System of Book-Keeping (Copy)

2. Sources and Recording of Data

2.1 The Double Entry System of Book-Keeping

Definition of the Double Entry System

• The double entry system is the foundation of modern accounting.
• Every transaction has two effects:
  • A debit entry in one account
  • A credit entry in another account
• This maintains the accounting equation:
  Assets = Liabilities + Owner’s Equity
• The principle is:
  For every debit, there must be a corresponding credit of equal value.

Purpose and Importance

• Ensures accuracy and completeness of records.
• Maintains balance in the accounting system.
• Detects errors through the trial balance.
• Enables the preparation of financial statements.
• Allows for classification and tracking of all financial transactions.

Written and Compiled By Sir Hunain Zia, World Record Holder With 154 Total A Grades, 7 Distinctions and 11 World Records For Educate A Change O Level And IGCSE Accounting Full Scale Course

The Rules of Debit and Credit

Examples of Double Entry

Example 1: Cash Sales of Goods for 5,000

• Debit: Cash account (asset increases) → 5,000
• Credit: Sales account (income increases) → 5,000

Example 2: Purchase of Inventory on Credit worth 3,000

• Debit: Purchases account (expense increases) → 3,000
• Credit: Trade payables (liability increases) → 3,000

Example 3: Payment of Rent 800

• Debit: Rent expense (expense increases) → 800
• Credit: Cash (asset decreases) → 800

Structure of a Ledger Account

Each ledger account follows a T-account format:

                    Cash Account
  Dr                                Cr
  Date     Details     Amount     Date     Details     Amount

• Left side: Debit
• Right side: Credit

Posting Transactions to Ledger Accounts

Each transaction is posted from the journals to the relevant ledger accounts.

Example: Owner starts business with 10,000 cash

• Debit: Cash account → 10,000
• Credit: Capital account → 10,000

Ledger Entries:

Cash Account
Dr
Date: 1 Jan | Details: Capital | Amount: 10,000

Capital Account
Cr
Date: 1 Jan | Details: Cash | Amount: 10,000

Written and Compiled By Sir Hunain Zia, World Record Holder With 154 Total A Grades, 7 Distinctions and 11 World Records For Educate A Change O Level And IGCSE Accounting Full Scale Course

Balancing Ledger Accounts

Steps:

1. Add up both the debit and credit sides.
2. Find the difference.
3. Enter the balance on the shorter side to make both sides equal.
4. Carry forward the balance to the next accounting period.

Example:
Cash Account
Dr
1 Jan | Capital | 10,000
5 Jan | Sales | 2,000

Cr
10 Jan | Rent | 1,000
20 Jan | Wages | 500

Totals:
Debit: 12,000
Credit: 1,500
Balance c/d: 10,500 (placed on credit side)
Balance b/d: 10,500 (brought down on debit side for next month)

Transfers to Financial Statements

• Balances from revenue and expense accounts are transferred to the Income Statement.
• Balances from assets, liabilities, and capital accounts go to the Statement of Financial Position.

Example:

• Rent expense balance → Income Statement
• Cash balance → Statement of Financial Position

Interpretation of Ledger Accounts and Their Balances

Indicators:

• A debit balance in an asset account means the business owns value (e.g. cash, machinery).
• A credit balance in a liability account means the business owes value (e.g. creditors, loans).
• A debit balance in expense accounts means costs have been incurred.
• A credit balance in income accounts indicates revenue earned.
• Drawings and capital accounts help track changes in owner’s investment.

Written and Compiled By Sir Hunain Zia, World Record Holder With 154 Total A Grades, 7 Distinctions and 11 World Records For Educate A Change O Level And IGCSE Accounting Full Scale Course

Divisions of the Ledger

The ledger is divided into three main sections:

1. Sales Ledger (Debtors Ledger)

• Contains accounts of credit customers.
• Records amounts receivable.
• Example: If goods are sold on credit to Ali for 1,000, the Sales Ledger will have:
  • Debit: Ali’s Account
  • Credit: Sales Account

2. Purchases Ledger (Creditors Ledger)

• Contains accounts of credit suppliers.
• Records amounts payable.
• Example: If goods are bought on credit from Zara & Co. for 2,000, the Purchases Ledger will have:
  • Credit: Zara & Co.’s Account
  • Debit: Purchases Account

3. General Ledger (Nominal Ledger)

• Records all real, nominal, and capital accounts.
• Includes:
  • Capital account
  • Cash account
  • Bank account
  • Sales and purchases (summary)
  • All expenses and revenues

Summary of Ledger Division Use

Written and Compiled By Sir Hunain Zia, World Record Holder With 154 Total A Grades, 7 Distinctions and 11 World Records For Educate A Change O Level And IGCSE Accounting Full Scale Course