Basic Accounting Concepts & Principles: Rules, Assumptions & Decision-Making

Core Concepts: The Foundation of Accounting

Accounting is not just recording transactions—it is a structured system built on concepts (assumptions) and principles (rules). These ensure consistency, reliability, and comparability in financial reporting. Below are the key concepts (assumptions) that underpin all accounting:

1. Business Entity Concept

Definition: The business is treated as a separate entity from its owners. Transactions of the owner (e.g., personal expenses) are not recorded in the business books. Example:

• If the owner of Kathmandu Retail Shop withdraws Rs 50,000 for personal use, it is recorded as Drawing (owner’s equity), not as an expense of the business.
• Why? To maintain clarity between personal and business finances.

Visual:

pie
    title Business Entity Concept
    "Business Assets" : 30
    "Owner's Personal Assets" : 20
    "Business Liabilities" : 25
    "Owner's Personal Liabilities" : 25
    "Business Equity" : 30
    "Owner's Personal Equity" : 25

2. Money Measurement Concept

Definition: Only transactions measurable in monetary terms (Rs, USD, etc.) are recorded. Non-monetary items (e.g., goodwill, employee morale) are not recorded unless they have a market value. Example:

• eSewa records online transactions (Rs 10,000 for electricity bill) but does not record the "trust of customers" in its books.
• Why? Accounting focuses on quantifiable financial data.

3. Going Concern Concept

Definition: Assumes the business will continue operating indefinitely unless evidence suggests otherwise. Assets are recorded at cost (not liquidation value). Example:

• NTC records its telephone network at historical cost (Rs 50 billion) even if its current market value is Rs 30 billion.
• Why? If NTC were to shut down tomorrow, its assets would be sold at a loss, but under this concept, we assume long-term operation.

Visual:

flowchart TD
    A["Going Concern"] --> B["Assets Recorded at Cost"]
    A --> C["Long-term Liabilities"]
    A --> D["Depreciation Over Useful Life"]
    B --> E["Example: NTC's Telephone Network"]

4. Accrual Concept (vs. Cash Basis)

Definition: Revenue is recorded when earned, and expenses when incurred, not when cash is received or paid. Example:

• Pathao records revenue when a ride is completed (even if payment is received later via digital wallet).
• Cash Basis: If Pathao waited until cash was received, it would misrepresent earnings.

Comparison Table:

5. Dual Aspect Concept (Double Entry System)

Definition: Every transaction affects at least two accounts (debit and credit). This ensures balance in the accounting equation: Assets = Liabilities + Owner’s Equity Example:

• Daraz sells goods for Rs 100,000 (cash).
  • Debit: Cash Account (+Rs 100,000)
  • Credit: Sales Revenue (+Rs 100,000)
• Why? Ensures no errors in recording.

Visual (T-Account):

(Shows how cash and sales revenue are recorded in opposite sides.)

6. Matching Concept

Definition: Expenses are matched with the revenue they help generate in the same accounting period. Example:

• Kathmandu Retail Shop buys inventory (Rs 50,000) in January but sells it in February.
  • The cost of goods sold (Rs 50,000) is matched with February’s sales revenue, not January’s.
• Why? To show the true profit for the period.

7. Materiality Concept

Definition: Only significant items are disclosed in financial statements. Small amounts (e.g., Rs 500 stationery) can be grouped. Example:

• Ncell does not separately record each Rs 100 SIM card sale but groups them under "Revenue from Mobile Services."
• Why? Reduces clutter in financial reports.

8. Conservatism (Prudence) Concept

Definition: When in doubt, understate assets/revenues and overstate liabilities/expenses to avoid overoptimism. Example:

• Nepal Stock Exchange (NEPSE) records inventory at lower of cost or market value (if market price drops, it writes down the value).
• Why? Prevents overstating profits.

9. Consistency Concept

Definition: The same accounting methods must be used year after year for comparability. Example:

• If Khalti uses straight-line depreciation for servers in 2023, it must use the same method in 2024.
• Why? Ensures financial statements are comparable over time.

10. Objectivity (Reliability) Concept

Definition: Financial data must be verifiable (supported by evidence) and free from bias. Example:

• Bank Reconciliation: Nabil Bank checks its records against customer statements to ensure accuracy.
• Why? Builds trust in financial reports.

Key Accounting Principles (Rules)

These are guidelines that ensure fairness and transparency in accounting.

1. Cost Principle

Definition: Assets are recorded at their original purchase cost, not market value. Example:

• NTC buys a server for Rs 20 million in 2010. Even if its market value is Rs 5 million in 2024, it remains recorded at Rs 20 million (unless impaired).

2. Revenue Recognition Principle

Definition: Revenue is recognized when:

1. The earning process is complete (goods delivered/service rendered).
2. The amount is measurable.
3. Collection is reasonably assured. Example:

• eSewa recognizes revenue when a transaction is completed (not when cash is deposited later).

3. Expense Recognition Principle

Definition: Expenses are recorded when they are incurred to generate revenue, not when cash is paid. Example:

• Kathmandu Retail Shop pays Rs 20,000 rent for July in June.
  • The expense is recorded in July (when the benefit is received), not June.

4. Full Disclosure Principle

Definition: All material information must be disclosed in financial statements. Example:

• Nepal Rastra Bank (NRB) must disclose loan defaults, fraud risks, and regulatory changes in its annual report.

5. Materiality Principle (Revisited)

Definition: Only significant items are disclosed. Trivial items can be ignored. Example:

• Daraz does not separately disclose each Rs 200 delivery charge but groups them under "Delivery Expenses."

In the Real World

These concepts and principles are not just theoretical—they shape how Nepali and global businesses operate:

1. eSewa & Digital Payments

• Accrual Concept: eSewa records a transaction as revenue when the service (e.g., bill payment) is completed, not when cash is settled later.
• Objectivity: Every transaction is logged with timestamp, user ID, and amount to ensure no disputes.

2. Daraz & Inventory Management

• Matching Concept: Daraz matches the cost of sold inventory with revenue from sales in the same period.
• Consistency: Uses FIFO (First-In-First-Out) inventory valuation every year for comparability.

3. NTC & Depreciation of Assets

• Going Concern: NTC’s telephone exchanges are not sold at market value but depreciated over 20 years (useful life).
• Conservatism: If an asset’s value drops, NTC writes it down (e.g., old copper cables).

4. Banks (Nabil, Global IME) & Loan Accounting

• Dual Aspect: When a customer takes a loan (Rs 1 million), the bank:
  • Debits: Loan Account (+Rs 1M)
  • Credits: Cash Account (+Rs 1M)
• Matching: Interest expense is matched with interest income over the loan period.

5. NEPSE & Stock Valuation

• Cost Principle: Shares are recorded at purchase price, not current market price (unless impaired).
• Full Disclosure: Companies must disclose related-party transactions (e.g., loans to directors).

Worked Example: Kathmandu Retail Shop

Let’s apply these concepts to a real Nepali business.

Transactions for June 2024

Accounting Equation Trace

We’ll track Assets = Liabilities + Owner’s Equity after each transaction.

Final Equation: Assets (460,000 + 20,000 Advance Rent) = Liabilities (20,000) + Owner’s Equity (790,000 - 20,000 = 770,000) (Note: Advance rent is a liability until July.)

Journal Entries (Real Picture)

Here’s how the June 10 sale would look in a journal entry:

Explanation:

• Cash A/c (Dr): Cash increases by Rs 400,000 (revenue).
• Sales A/c (Cr): Revenue recognized.
• COGS (Dr): Expense matched with sales.
• Inventory (Cr): Reduces inventory value.

Trial Balance & Error Detection

A trial balance checks if debits = credits. If not, an error exists.

Trial Balance for Kathmandu Retail Shop (June 30)

If debits ≠ credits, possible errors:

1. Omission: A transaction was missed.
2. Commission: A wrong account was used (e.g., rent recorded as salary).
3. Principle: Wrong valuation (e.g., recording furniture at market value instead of cost).
4. Compensating Errors: Two errors cancel each other out (e.g., overstating an asset and understating a liability by the same amount).

Exam Tip

How This Unit is Examined

1. Definitions & Differences (5-10 marks):

   • Expect questions like:
     • "Differentiate between accounting and accountancy."
     • "Explain the accrual concept with an example from eSewa."
   • Answer Tip: Use real-world examples (e.g., Daraz, NTC) to score full marks.

2. Accounting Equation Problems (10-15 marks):

   • Given transactions, you must:
     1. Identify the concept/principle applied.
     2. Prepare the accounting equation after each transaction.
   • Example Question:

     "Started business with cash Rs 100,000 and stock Rs 50,000. Purchased goods for Rs 30,000 on credit. Show the accounting equation."

   • Solution:

     Assets = Liabilities + Equity
     (100,000 + 50,000) = 0 + 150,000  (Initial)
     (100,000 + 80,000) = 30,000 + 150,000 (After purchase)
     

3. Journal Entries & Error Correction (10-15 marks):

   • You may be given incorrect entries and asked to rectify them.
   • Example:

     "The following entry was passed incorrectly: Dr. Salary A/c Rs 20,000; Cr. Cash A/c Rs 20,000. It was actually rent paid. Rectify."

   • Solution: Correct Entry: Dr. Rent A/c 20,000 Cr. Cash A/c 20,000 Error Correction Journal: Dr. Rent A/c 20,000 Cr. Salary A/c 20,000

4. Short Notes & Applications (5 marks each):

   • "Write short notes on: (a) Conservatism (b) Materiality."
   • Answer Tip: Define + real-world example (e.g., NEPSE for conservatism).

Common Mistakes to Avoid

❌ Ignoring the accounting equation: Always ensure Assets = Liabilities + Equity. ❌ Mixing cash and accrual basis: Remember, revenue is earned when service is rendered, not when cash is received. ❌ Forgetting concepts in journal entries: Label which principle/concept each entry follows. ❌ Overcomplicating answers: Exams expect concise, structured answers with examples.

Final Checklist Before Exam

✅ Can you define all 10 concepts and give a real-world example for each? ✅ Can you prepare the accounting equation from a set of transactions? ✅ Can you identify errors in journal entries and correct them? ✅ Can you link concepts to Nepali businesses (eSewa, Daraz, NTC, banks)?

Good luck! These concepts are the backbone of accounting—master them, and you’ll ace the exam. 🚀