Every discipline has a set of underlying principles that guide its practice. Accounting is no different. The theory base of accounting consists of accounting concepts, conventions (principles), and standards that together ensure financial statements are prepared consistently, accurately, and comparably across organisations and time periods.
Generally Accepted Accounting Principles (GAAP)
GAAP is the collective body of accounting concepts, conventions, and standards that accountants follow. In India, the Institute of Chartered Accountants of India (ICAI) issues Accounting Standards (AS) that form a major part of Indian GAAP.
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Accounting Concepts (Assumptions)
These are the foundational assumptions on which the entire accounting system rests.
1. Business Entity Concept
The business is treated as a separate entity from its owner(s). The owner's personal transactions must not be mixed with business transactions. · Implication · : When an owner invests Rs 1,00,000 in the firm, it is recorded as the firm's liability (capital) to the owner.
2. Money Measurement Concept
Only transactions that can be expressed in monetary terms are recorded. Non-monetary events (employee morale, customer goodwill) are excluded.
3. Going Concern Concept
It is assumed that the business will continue operations for the foreseeable future and will NOT be liquidated or scaled down significantly. · Implication · : Assets are valued at cost, not at liquidation (break-up) value.
4. Accounting Period Concept
The indefinite life of a business is divided into specific equal intervals called accounting periods (usually 12 months) so that periodic financial statements can be prepared and performance assessed.
5. Cost Concept (Historical Cost)
Assets are recorded at their original purchase price (cost of acquisition) and this cost is the basis for all subsequent accounting. Market appreciation is ignored.
6. Dual Aspect Concept
Every transaction has two aspects — a debit and a credit of equal amount. This gives rise to the fundamental accounting equation:
Assets = Liabilities + Capital
7. Revenue Recognition (Realisation) Concept
Revenue is recognised when it is earned (i.e., when goods are delivered or services are rendered), NOT necessarily when cash is received.
8. Matching Concept
Expenses of a period must be matched with the revenues earned in the same period to determine the correct profit/loss. This underpins the accrual basis of accounting.
9. Full Disclosure Concept
All material information that could influence the decisions of users must be fully disclosed in the financial statements or in the notes thereto.
10. Objectivity Concept
Accounting records should be based on verifiable, objective evidence (source documents like invoices, receipts) rather than personal opinion.
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Accounting Conventions
Conventions are customs that have evolved through common usage over time.
1. Convention of Conservatism (Prudence): "Anticipate no profit, but provide for all possible losses." Recognise losses when probable; recognise gains only when actually realised.
2. Convention of Consistency: The same accounting methods (e.g., same depreciation method) should be followed year after year to ensure comparability.
3. Convention of Materiality: Trivial (immaterial) items need not be disclosed separately; only material items need separate treatment. What is material depends on size and nature.
4. Convention of Full Disclosure: (also listed as a concept) All significant information should be disclosed.
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Accounting Standards (AS)
Accounting Standards are written policy documents that prescribe how certain transactions and events must be recognised, measured, and disclosed. In India, AS are issued by the ICAI and are mandatory for companies. They ensure uniformity and comparability across organisations.
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An owner withdraws Rs 20,000 from the business for personal use. Under which concept is this recorded as a deduction from capital? · Steps · : Business Entity Concept — the business and owner are separate. The withdrawal (drawings) reduces the owner's capital in the books of the business.
A firm buys a machine for Rs 3,00,000. Its market value rises to Rs 5,00,000 next year. At what value is it shown in accounts? · Answer · : Rs 3,00,000 — the Cost Concept requires assets to be carried at original cost (less depreciation), not at market value.
A company sells goods worth Rs 80,000 in March but receives payment in April. When is revenue recognised? · Answer · : In March — under the Realisation Concept, revenue is recognised when goods are delivered and the right to receive money is established, not when cash actually comes in.
A firm earned revenue of Rs 5,00,000 in a year. It incurred salaries of Rs 1,20,000 and rent of Rs 60,000 — some of which were accrued (unpaid). Which concept requires including accrued expenses in the P&L? · Answer · : Matching Concept — all expenses related to earning the Rs 5,00,000 revenue (whether paid or accrued) must be matched against it in the same period.
A trader uses FIFO for inventory valuation one year, then switches to Weighted Average the next year without disclosing it. Which convention is violated? · Answer · : Convention of Consistency — the same method must be used each year. Changes must be disclosed with the reason and impact on profit.
A business has a small pencil sharpener costing Rs 50. Instead of depreciating it over its useful life, the accountant writes it off immediately. Which convention justifies this? · Answer · : Convention of Materiality — Rs 50 is immaterial relative to the size of the business; applying full depreciation accounting to it would waste effort without benefit.
A company knows it might lose a court case and pay Rs 10,00,000 in damages. It provides for this loss in accounts, even though the case is not yet decided. Which concept supports this? · Answer · : Convention of Conservatism — anticipated losses are provided for as soon as they are probable, even before they are confirmed.
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Common mistakes
- Confusing concepts (fundamental assumptions) with conventions (practical customs). Both form the theory base but have different origins.
- Thinking the Going Concern concept means the business will last forever — it only means it will continue for the foreseeable future.
- Applying Realisation concept incorrectly: revenue is recognised at the point of sale/delivery, NOT at order placement or cash receipt.
Summary
The theory base of accounting — concepts, conventions, and standards — ensures that financial statements are prepared on a consistent, comparable, and reliable basis. Key concepts include Business Entity, Going Concern, Cost, Dual Aspect, Realisation, and Matching. Key conventions include Conservatism, Consistency, Materiality, and Full Disclosure.