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The accounting equation and business transactions: Class 9 Accounting
An introductory chapter on assets, liabilities and owner’s capital, with transaction analysis, worked calculations and short practice answers. Check your own course outline for the topics required by your board.
Key points
Keep the business separate from its owner when recording transactions. Money introduced by the owner is capital, not sales revenue. A personal withdrawal is drawings, not a business operating expense.
Assets are resources controlled by the business, such as cash, equipment and amounts owed by customers. Liabilities are obligations, such as a bank loan or amounts owed to suppliers. Capital is the owner’s residual interest after liabilities are deducted from assets.
The basic equation is assets = liabilities + capital. Every recorded transaction must leave it in balance. A business can exchange one asset for another without changing its total assets or capital.
Buying equipment for cash increases equipment and decreases cash by the same amount. Buying equipment on credit increases equipment and the amount owed to the supplier. Repaying the principal of a loan decreases cash and the loan liability; interest is a separate expense.
Revenue earned increases capital through profit. Expenses reduce profit and therefore capital. Owner contributions and drawings also affect capital, but they are not revenue and expenses. Distinguish these movements before calculating profit.
Illustrative sequence: the owner introduces Rs 80,000 cash. The business buys equipment for Rs 20,000 cash, then buys supplies for Rs 5,000 on credit. Assets are cash Rs 60,000 + equipment Rs 20,000 + supplies Rs 5,000 = Rs 85,000. Liabilities are Rs 5,000 and capital remains Rs 80,000.
These examples are a learning model, not instructions for preparing statutory accounts or tax returns. Read each transaction carefully and say which accounts change before applying the arithmetic.
Study tip: Write the two effects first. Then total each side and explain why the equation still balances.
Definitions and flashcards
Say the meaning first, then open the card to check.
Asset
A resource controlled by the business as a result of past events.
Liability
A present obligation of the business.
Capital
The owner’s residual interest in assets after liabilities.
Drawings
Resources withdrawn by the owner for personal use.
Trade payable
An amount owed to a supplier for purchases on credit.
Formula sheet
| Name | Formula | What it means |
|---|---|---|
| Accounting equation | Assets = Liabilities + Capital | Both sides remain equal after a transaction. |
| Closing capital | Opening capital + contributions + profit - drawings | Assumes no other movements in owner’s equity. |
Short questions with model answers
These are the kind of questions asked for 2, 3 and 5 marks. Try each one before opening the answer.
State the accounting equation and rearrange it to find capital. (2 marks)
Assets = liabilities + capital. Therefore capital = assets - liabilities.
Explain why buying equipment for cash does not necessarily change total assets. (3 marks)
Equipment increases while cash decreases by the same amount. One asset is exchanged for another. There is no immediate expense merely because the business buys the equipment; later depreciation is a separate matter.
Explain the difference between a bank loan, owner’s capital and sales revenue. (5 marks)
A loan creates an obligation to repay and is recorded as a liability. An owner’s contribution increases capital. Sales revenue is earned from customers and increases profit, subject to related expenses. Receiving cash does not make all three receipts revenue. Classify the source before recording the transaction.
Numericals with worked steps
A business has assets of Rs 145,000 and liabilities of Rs 38,000. Find capital.
- Rearrange assets = liabilities + capital.
- Capital = 145,000 - 38,000.
Answer: Rs 107,000.
Opening capital is Rs 90,000. The owner adds Rs 15,000, withdraws Rs 8,000, and the business earns Rs 22,000 profit. Calculate closing capital.
- Use opening capital + contributions + profit - drawings.
- 90,000 + 15,000 + 22,000 - 8,000 = 119,000.
Answer: Rs 119,000.
The business starts with Rs 50,000 cash and no liabilities. It buys equipment for Rs 12,000 cash and receives a Rs 20,000 loan. Show the equation.
- Cash = 50,000 - 12,000 + 20,000 = 58,000.
- Equipment = 12,000, so total assets = 70,000.
- Liabilities = 20,000 and capital = 50,000.
Answer: Assets Rs 70,000 = liabilities Rs 20,000 + capital Rs 50,000.
Common mistakes
- Treating a loan receipt as sales revenue.
- Deducting the whole cost of equipment as an immediate expense in these transaction examples.
- Recording personal drawings as wages.
- Confusing cash at bank with the owner’s total capital.