Basic Accounting Concepts & Principles: Rules, Users & Errors

TAKEAWAYS

• The accounting equation (Assets = Liabilities + Equity) is the backbone of every transaction, and its rules for debit/credit apply universally.
• Dual aspect means every transaction affects at least two accounts, which is why journal entries always have a debit and credit.
• Users of accounting info range from investors (NEPSE) to tax authorities, each with distinct needs (e.g., banks need liquidity ratios).
• Errors like omissions or compensating errors are either caught by trial balance or require manual review (e.g., unrecorded cash receipts).
• Concepts like accrual accounting (used by Pathao for ride payments) and matching (used by Daraz for inventory costs) ensure financial statements reflect true performance.
• Real-world tie: eSewa’s transaction records rely on the money measurement concept (only recordable transactions count) and business entity principle (eSewa’s transactions are separate from its owners’).

1. Introduction to Accounting Concepts

Accounting concepts are assumptions and guidelines that shape how transactions are recorded and reported. They ensure consistency, relevance, and comparability across financial statements.

Key Concepts & Definitions

FIGURE 1: Accounting Concepts in Action

2. Accounting Principles

Principles are rules derived from concepts that guide how transactions are recorded. They ensure fairness, accuracy, and compliance.

Core Principles

FIGURE 2: Conservatism vs. Optimism

3. The Accounting Equation & Dual Aspect Concept

Every transaction affects at least two accounts, following the accounting equation: $$\text{Assets}=\text{Liabilities}+\text{Owner’s Equity}$$

How It Works

• Assets = What the business owns (cash, inventory, machinery).
• Liabilities = What the business owes (loans, unpaid bills).
• Equity = Owner’s claim after liabilities (capital + retained earnings).

Example: Starting a Business A shopkeeper, Mr. Thapa, starts a retail shop with:

• Cash: Rs 500,000
• Inventory: Rs 300,000 (bought on credit from a supplier)

Transaction 1: Investment by Owner

Assets (Cash) +300,000
Assets (Inventory) +300,000
Liabilities (Supplier) +300,000

Wait—this doesn’t balance! Let’s correct it: Correct Transaction 1: Investment by Owner (Cash Only)

Assets (Cash) +500,000
Equity (Capital) +500,000

Transaction 2: Purchase Inventory on Credit

Assets (Inventory) +300,000
Liabilities (Supplier) +300,000

Now the equation holds: $$\text{Assets (500k + 300k)}=\text{Liabilities (300k)}+\text{Equity (500k)}$$

FIGURE 3: Accounting Equation in Action

mindmap
  root((Accounting Equation: Assets = Liabilities + Equity))
    Assets
      Cash, Inventory, Machinery
    Liabilities
      Loans, Unpaid Bills, Supplier Credit
    Equity
      Owner’s Capital, Retained Earnings
    Example: Mr. Thapa’s Shop
      Assets: Rs 800,000 (Cash + Inventory)
      Liabilities: Rs 300,000 (Supplier)
      Equity: Rs 500,000 (Capital)

4. Rules for Debit and Credit

Debits and credits follow two sets of rules:

1. Based on the Accounting Equation (normal balance).
2. Based on the Type of Account (asset/liability/equity).

Table: Rules by Account Type

FIGURE 4: Debit/Credit Rules for Common Accounts

Worked Example: Recording a Loan Scenario: Mr. Thapa borrows Rs 200,000 from NMB Bank to expand his shop. Transaction:

• Assets (Cash) increase by Rs 200,000 (Debit).
• Liabilities (Loan from NMB) increase by Rs 200,000 (Credit).

Journal Entry:

Date       Particulars               | Debit (NPR) | Credit (NPR)
2079-06-01 Cash A/c                     | 200,000     |
       To Loan from NMB Bank           |            | 200,000

Check: Assets (Cash) = Liabilities (Loan) → Equation holds.

5. Users of Accounting Information

Accounting data serves multiple stakeholders, each with specific needs:

FIGURE 5: Users of Accounting Information

6. Accounting Errors & Their Impact

Errors can be classified based on whether they are disclosed by the trial balance or not.

Table: Types of Errors

FIGURE 6: Error Impact on Trial Balance

mindmap
  root((Accounting Errors))
    Disclosed by Trial Balance
      Omission, Incorrect Posting, Wrong Totaling, Transposition
    Not Disclosed by Trial Balance
      Compensating Errors, Error of Principle, Complete Omission, Error in Casting
    Example: Compensating Error
      Sale Underrecorded: -Rs 50k (Assets)
      Expense Overrecorded: +Rs 50k (Expenses)
      Net Effect: Zero (Trial Balance Balances)

Worked Example: Identifying Errors Scenario: Everest Company’s trial balance shows a discrepancy. Investigate the following errors:

1. A salary of Rs 25,000 was paid to Mr. Motiram but debited to his personal account instead of the salary account.
2. A computer purchase for Rs 150,000 was recorded as an expense instead of an asset.

Solution:

1. Error 1: Salary is an expense (debit normal balance). It was incorrectly debited to Mr. Motiram’s account (liability).
   • Fix: Debit Salary A/c (+25k), Credit Mr. Motiram’s A/c (-25k).
2. Error 2: Computer is a fixed asset (debit normal balance). It was recorded as an expense (also debit).
   • Fix: Debit Computer A/c (+150k), Credit Expense A/c (-150k).

Impact on Trial Balance:

• Error 1: No effect (both sides of the equation are adjusted).
• Error 2: No effect (both sides are debits; trial balance remains balanced).

FIGURE 7: Correcting Errors

7. In the Real World

Accounting concepts and principles are everywhere in Nepal’s business landscape:

1. eSewa’s Transaction Processing

   • Concepts Used:
     • Business Entity: eSewa’s transactions are separate from its founders’ personal accounts.
     • Money Measurement: Only transactions in NPR are recorded (e.g., no recording of "user trust").
   • Why It Matters: Ensures transparency for users and regulators (e.g., RBI Nepal).

2. Daraz’s Inventory Management

   • Concepts Used:
     • Accrual Basis: Revenue is recorded when orders are shipped (not when cash is received).
     • Matching Principle: Cost of goods sold (COGS) is matched to the revenue from each sale.
   • Real Example: If Daraz sells a laptop for Rs 50,000 with a COGS of Rs 30,000, the gross profit is Rs 20,000—recorded in the same period.

3. Ncell’s Loan Interest Calculation

   • Concepts Used:
     • Conservatism: Ncell records bad debt provisions for uncollectible loans.
     • Going Concern: Assumes Ncell will operate for years, justifying long-term debt.
   • Worked Example: If Ncell lends Rs 1,000,000 at 12% annual interest, it records:
     • Interest Revenue (Credit): Rs 120,000 (if accrual basis).
     • Bad Debt Provision (Debit): Rs 50,000 (conservative estimate).

FIGURE 8: Daraz’s Revenue Recognition (Accrual Basis)

8. Exam Tip

This unit is highly examinable—expect short-answer questions (SAQs) on definitions, rules, and examples, as well as long-answer questions (LAQs) requiring applications (e.g., correcting errors, explaining user needs). Here’s how to score full marks:

1. For Definitions/Explanations:

   • Always start with the official definition (e.g., "The accounting equation is Assets = Liabilities + Equity").
   • Follow with real-world examples (e.g., "If a shopkeeper buys inventory on credit, Assets increase by inventory value, and Liabilities increase by the supplier’s credit").
   • Use visuals (e.g., draw a T-account for Cash and Supplier).

2. For Rules (Debit/Credit, Journalizing):

   • Memorize the table (Assets: Debit; Liabilities: Credit; etc.).
   • For journalizing, always show:
     • Date
     • Particulars (with account names)
     • Debit and Credit columns (aligned properly)
     • Narrative (e.g., "Paid salary to employees").

3. For Errors:

   • Classify errors clearly (disclosed/not disclosed by trial balance).
   • Show correction with journal entries (as in the worked example above).
   • Mention impact (e.g., "This error affects the profit figure but not the trial balance").

4. For Users of Accounting Info:

   • List groups (investors, creditors, government, etc.).
   • For each, explain what they need and give a Nepali example (e.g., "NEPSE investors check P&L statements").

5. For Concepts/Principles:

   • Explain why the concept matters (e.g., "The accrual basis ensures revenue is recorded when earned, not when cash is received").
   • Tie to real-world scenarios (e.g., "Pathao uses accrual accounting to match ride revenue with fuel costs").

FIGURE 9: Sample Exam Answer Structure

Final Note: Always practice numerical problems (e.g., correcting errors, preparing trial balances) to master this unit. Use real businesses (like Mr. Thapa’s shop) to make abstract concepts concrete!