Cost Accounting

Principles of Accounting — Grade 12 | Unit 3 | NEB Nepal

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Introduction

Financial accounting tells us how much profit a business has made in total — but it does not tell us how much it cost to produce each unit of output, which product is most profitable, where costs are being wasted, or how to price products competitively. Cost accounting fills this gap — providing the detailed internal cost information that management needs to plan, control, and make informed decisions about production and pricing. Unit 3 of NEB Grade 12 Principles of Accounting covers the full scope of cost accounting: its concepts and classification of costs, material and labour cost accounting, overhead accounting, preparation of cost sheets, and reconciliation of cost and financial accounting profit. These are among the most practically relevant topics in the entire Grade 12 course for students pursuing careers in manufacturing, operations, and management.

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1. Introduction to Cost Accounting

1.1 Meaning and Definition

According to the Institute of Cost and Management Accountants (ICMA), UK, “Cost accounting is the process of accounting for cost from the point at which expenditure is incurred or committed to the establishment of its ultimate relationship with cost units.”

According to Wheldon, “Cost accounting is the application of accounting and costing principles, methods, and techniques in the ascertainment of costs and the analysis of savings or excesses as compared with previous experience or with standards.”

According to J.R. Batliboi, “Cost accounting is that branch of accounting which deals with the classification, recording, allocation, and control of costs — it provides information for both planning and decision-making purposes.”

According to Horngren, Datar, and Foster (leading authority on cost accounting), “Cost accounting measures, analyzes, and reports financial and nonfinancial information relating to the costs of acquiring or using resources in an organization.”

According to Colin Drury, “Cost accounting involves the systematic recording and analysis of the costs of materials, labour, and overheads relating to the production and sale of goods and services.”

1.2 Objectives of Cost Accounting

i. Ascertainment of cost: Determining the cost of each product, process, job, or service — the primary purpose. According to Wheldon, “The first and most fundamental objective of cost accounting is to find out what each product costs.”

ii. Cost control: Comparing actual costs with predetermined standards or budgets — identifying variances and taking corrective action. Cost control prevents waste, inefficiency, and cost overruns.

iii. Cost reduction: Systematically identifying and implementing methods to reduce costs without sacrificing quality or functionality — a long-term objective of cost management.

iv. Decision-making support: Providing cost data for management decisions — make-or-buy decisions, pricing decisions, product mix decisions, capital investment appraisal.

v. Pricing decisions: Cost information enables management to set selling prices that cover costs and generate a profit margin. In competitive markets, knowing your cost structure is essential for profitable pricing.

vi. Profit planning and budgeting: Cost accounting provides the data needed for profit planning — projecting costs at different output levels and setting targets for cost performance.

vii. Inventory valuation: Provides the basis for valuing work-in-progress and finished goods inventories for financial reporting purposes.

1.3 Importance (Advantages) of Cost Accounting

i. Reveals profitable and unprofitable products: By allocating costs to individual products, cost accounting identifies which products generate profit and which should be discontinued or repriced.

ii. Enables cost control and efficiency: Regular comparison of actual costs with standards highlights inefficiency — prompting management action.

iii. Assists in pricing: Cost per unit provides the floor below which prices should not fall (except in exceptional circumstances) — and provides the basis for competitive pricing strategies.

iv. Supports budgeting and planning: Historical cost data informs future budgets and production plans.

v. Prevents fraud and waste: Detailed cost records make it harder to conceal unauthorized expenditure, theft of materials, or labour fraud.

vi. Provides management information: Managers at all levels need cost information — from the factory floor supervisor monitoring material waste to the CEO evaluating capital investment proposals.

1.4 Limitations of Cost Accounting

i. Expensive to install and operate: A comprehensive cost accounting system requires significant investment in staff, systems, and procedures.

ii. Not suitable for all businesses: Cost accounting is most appropriate for manufacturing businesses — service businesses and small sole traders may find the system disproportionately costly relative to benefits.

iii. Results may be inaccurate: Cost allocation involves judgment — particularly in overhead absorption. Different allocation methods produce different costs for the same product.

iv. Lack of uniformity: No single universally agreed method of cost accounting — different industries use different methods, making comparison difficult.

v. Historical in nature: Most cost accounting data is historical — it records what things cost, not necessarily what they should cost.

1.5 Difference Between Cost Accounting and Financial Accounting

Basis	Financial Accounting	Cost Accounting
Objective	Report to external users	Provide internal management information
Focus	Overall business profit/loss	Cost of individual products/processes
Legal requirement	Mandatory (Companies Act)	Voluntary (internal management tool)
Time orientation	Historical	Historical and forward-looking
Users	Shareholders, banks, regulators, tax authorities	Management, production managers
Format	Standardized (NAS/NFRS)	Flexible — as management requires
Period	Annual (or quarterly)	Monthly, weekly, or per batch/job
Reporting	External financial statements	Internal cost reports and statements

1.6 Methods of Costing

Different businesses use different methods of costing depending on the nature of their production:

i. Unit (Output) Costing: Used where a single, uniform product is produced in large quantities. Cost is calculated per unit. Example: cement production, electricity generation.

ii. Job Costing: Used where each job or order is unique — costs are collected separately for each job. Example: construction contracts, printing orders, custom manufacturing.

iii. Batch Costing: A variation of job costing — costs are collected for a batch of identical items. Example: pharmaceutical tablet production.

iv. Process Costing: Used where production is continuous through a series of processes, and output from one process becomes input to the next. Example: oil refining, flour milling, chemical manufacturing.

v. Contract Costing: Used for large, long-duration contracts — typically construction and infrastructure projects. Example: road construction, dam construction.

vi. Service (Operating) Costing: Used in service industries where the cost unit is a service rather than a product. Example: transport (cost per km), hospital (cost per patient day), hotel (cost per room night).

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2. Cost Concepts and Classification

2.1 Meaning of Cost

According to the ICMA, “Cost is the amount of expenditure (actual or notional) incurred on or attributable to a specified thing or activity.”

According to Horngren, Datar, and Foster, “A cost is the resource sacrificed or foregone to achieve a specific objective — it is usually measured as the monetary amount that must be paid to acquire goods and services.”

2.2 Classification of Costs

Costs are classified in several ways, each serving a different purpose:

Classification 1 — By Nature (Elements of Cost)

i. Material Cost: The cost of materials used in production — both direct materials (part of the product) and indirect materials (used in production but not part of the product).

ii. Labour Cost: The cost of employing workers — both direct labour (workers directly engaged in production) and indirect labour (supervisors, maintenance workers, quality inspectors).

iii. Overhead Cost (Expenses): All costs other than direct material and direct labour — factory overheads, administrative overheads, selling and distribution overheads.

Classification 2 — By Behaviour (with changes in output)

i. Fixed Costs: Costs that remain constant in total regardless of changes in output level — within a relevant range. Examples: factory rent, depreciation of machinery, management salaries. Fixed cost per unit falls as output increases (fixed cost is spread over more units).

ii. Variable Costs: Costs that vary directly and proportionally with changes in output. Examples: direct materials, direct labour (piece-rate), power for production machinery. Variable cost per unit remains constant.

iii. Semi-Variable (Mixed) Costs: Costs that have both a fixed and a variable component — they change with output but not proportionally. Example: electricity bill (fixed standing charge + variable usage charge); telephone (line rental + call charges).

Classification 3 — By Relationship to Product (Traceability)

i. Direct Costs: Costs that can be specifically identified with and traced to a particular product, job, or cost unit — direct materials and direct labour.

ii. Indirect Costs (Overheads): Costs that cannot be directly and easily traced to a specific product — they benefit multiple products and must be allocated.

Classification 4 — By Function

i. Production/Manufacturing Costs: All costs related to the production of goods — direct materials, direct labour, factory overheads.

ii. Administration Costs: Costs of managing and running the business — salaries of administrative staff, office rent, stationery.

iii. Selling and Distribution Costs: Costs of marketing and delivering products to customers — advertising, sales commissions, carriage outward, warehousing.

iv. Research and Development Costs: Costs of developing new products and improving existing ones.

Classification 5 — By Controllability

i. Controllable Costs: Costs that a specific manager has the authority and ability to control — a production manager can control direct material waste.

ii. Uncontrollable Costs: Costs outside a specific manager’s authority — a factory manager cannot control corporate head office rent allocation.

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3. Material and Material Control Accounting

3.1 Meaning and Importance of Material Control

According to J.R. Batliboi, “Material control is the system of controlling the purchasing, storage, and use of materials — ensuring that the right materials are available in the right quantities at the right time and at the right cost, without excessive investment in stocks.”

According to Wheldon, “Material control aims to ensure that materials are purchased, stored, and issued in a manner that minimizes cost while maintaining uninterrupted production.”

Objectives of material control:

• Ensure continuity of production — no stock-outs
• Minimize investment in stocks — avoid excessive inventory
• Prevent waste, theft, and deterioration of materials
• Maintain accurate records of material movements
• Identify and dispose of slow-moving or obsolete materials

3.2 Purchase Procedure

The typical purchase procedure for a manufacturing business:

Step 1 — Purchase Requisition: The store or production department raises a Purchase Requisition — a formal request for materials needed.

Step 2 — Purchase Order: The purchasing department issues a Purchase Order to the selected supplier — specifying quantity, quality, price, and delivery terms.

Step 3 — Receiving and Inspection: When goods arrive, a Goods Received Note (GRN) is prepared — goods are inspected for quantity and quality before acceptance.

Step 4 — Storage: Accepted goods are stored in the store/warehouse — recorded in the Stores Ledger (Bin Card).

Step 5 — Invoice Processing: The supplier’s invoice is matched with the Purchase Order and GRN before payment is authorized.

3.3 Centralized vs. Decentralized Purchasing

Centralized Purchasing: All purchasing is done by a single central purchasing department — regardless of which department or factory needs the materials.

Advantages: Bulk buying discounts; specialized purchasing expertise; standardization of materials; better supplier relationships; easier control.

Disadvantages: Slower response to urgent departmental needs; central department may not understand specific departmental requirements; bureaucratic procedures.

Decentralized Purchasing: Each department or plant purchases its own materials independently.

Advantages: Faster response to local needs; better knowledge of specific requirements; greater departmental autonomy.

Disadvantages: Duplication of purchasing effort; loss of bulk discounts; inconsistent quality standards; harder to control.

3.4 Material Storage and Storekeeper’s Duties

Duties of the Storekeeper:

• Receive, inspect, and accept materials from suppliers
• Store materials safely and systematically — preventing theft, deterioration, and damage
• Maintain accurate stock records — Bin Cards for physical counts, Stores Ledger for accounting
• Issue materials only on production of an authorized Material Requisition Note
• Conduct periodic stock counts — reconcile physical stock with records
• Report low stock levels to trigger reordering
• Identify and report slow-moving, obsolete, or damaged materials

3.5 Methods of Stock Valuation

When materials are issued from the store for production, they must be valued — but the same material may have been purchased at different prices at different times. Three main methods address this:

i. FIFO (First In, First Out)

According to J.R. Batliboi, “Under FIFO, materials are issued in the order they were received — the oldest stock is used first, and the closing stock is valued at the most recent prices.”

Assumption: The first materials purchased are the first to be issued to production.

Advantages:

• Logical — matches physical flow in most cases
• Closing stock valued at most recent (current) prices — balance sheet more realistic
• Easy to understand and apply

Disadvantages:

• During inflation, FIFO charges lower (older, cheaper) material costs to production — overstates profit
• During deflation, FIFO charges higher costs to production — understates profit

ii. LIFO (Last In, First Out)

Under LIFO, the most recently purchased materials are issued first — most recent (usually higher in inflation) prices are charged to production.

Advantages:

• During inflation, charges current (higher) costs to production — more realistic current cost matching
• Reduces tax liability during inflation (higher cost = lower profit = lower tax)

Disadvantages:

• Closing stock valued at oldest (lower) prices — balance sheet undervalues stock
• Does not reflect physical flow in most cases
• Not permitted under NFRS (IAS 2 prohibits LIFO) — significant limitation for formal accounting

iii. Weighted Average (AVCO — Average Cost)

According to the ICMA, “Under the weighted average method, the cost of each issue is calculated as the weighted average cost of all materials in store at the time of issue.”

$$\text{Weighted Average Cost} = \frac{\text{Total Cost of Stock in Hand}}{\text{Total Units in Stock}}$$

The weighted average is recalculated after every new receipt.

Advantages:

• Smooths out price fluctuations — less volatile than FIFO or LIFO
• Acceptable under NAS/NFRS (IAS 2 permits FIFO or weighted average)
• Simple once the formula is understood

Disadvantages:

• Requires recalculation after every receipt — can be laborious without a computer system
• Cost per unit may not correspond to any actual purchase price

NFRS requirement (IAS 2): Nepal’s accounting standards permit only FIFO and weighted average for inventory valuation. LIFO is not permitted.

3.6 Stock Levels and Economic Order Quantity (EOQ)

Stock Levels:

i. Maximum Stock Level: The highest level of stock that should be held — excessive stock ties up capital and risks deterioration.

$$\text{Maximum Level} = \text{Reorder Level} + \text{Reorder Quantity} – (\text{Min. Usage} \times \text{Min. Lead Time})$$

ii. Minimum (Safety/Buffer) Stock Level: The lowest level below which stock should not fall — prevents stock-out and production stoppage.

$$\text{Minimum Level} = \text{Reorder Level} – (\text{Average Usage} \times \text{Average Lead Time})$$

iii. Reorder Level: The stock level at which a new purchase order must be placed — allows time for the order to arrive before stock runs out.

$$\text{Reorder Level} = \text{Maximum Usage} \times \text{Maximum Lead Time}$$

iv. Average Stock Level:

$$\text{Average Level} = \frac{\text{Maximum Level} + \text{Minimum Level}}{2}$$

Or: Average Level = Minimum Level + ½ × Reorder Quantity

Economic Order Quantity (EOQ):

EOQ is the order quantity that minimizes the total cost of ordering and holding stock — balancing ordering costs (per order) against holding costs (per unit per period).

According to Wilson’s EOQ Formula:

$$EOQ = \sqrt{\frac{2 \times D \times C_o}{C_h}}$$

Where:

• D = Annual demand (units)
• C₀ = Cost per order (ordering cost)
• Cₕ = Annual holding cost per unit

Example: Annual demand = 1,200 units; Ordering cost = Rs. 500 per order; Holding cost = Rs. 2 per unit per year.

$$EOQ = \sqrt{\frac{2 \times 1200 \times 500}{2}} = \sqrt{600,000} = 775 \text{ units (approx.)}$$

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4. Accounting for Labour

4.1 Meaning and Importance

Labour cost is often one of the largest elements of total production cost — particularly in labour-intensive industries like carpets, garments, and construction (important sectors in Nepal). Accurate measurement, recording, and control of labour costs is therefore critical.

According to Wheldon, “Labour cost control involves recording, analysing, and controlling all costs associated with employing workers — including wages, salaries, overtime, bonuses, employer’s social security contributions, and all other employment costs.”

4.2 Labour Cost Control

Methods used in labour cost control:

i. Time keeping: Recording when employees start and finish work — using time cards, clocking-in systems, or biometric attendance systems. Ensures attendance records are accurate.

ii. Time booking: Recording how employees use their time — which jobs, processes, or activities they worked on during each shift. Enables allocation of labour cost to specific products or jobs.

iii. Job cards and labour tickets: Documents on which workers record time spent on each job — the basis for charging labour to cost units.

iv. Idle time recording: Time when workers are present but not productively engaged — waiting for materials, machine breakdowns, power failures. Idle time is an indirect cost — charged to overhead.

4.3 Wage Payment Systems

i. Time Rate System

Workers are paid a fixed rate per hour (or per day, week, or month) — regardless of output produced.

Wage = Hours Worked × Rate per Hour

Advantages of time rate:

• Simple to calculate and administer
• Workers have income certainty
• Encourages quality work — workers are not pressured to rush
• Suitable for skilled workers, supervisors, and complex tasks

Disadvantages of time rate:

• No direct incentive for productivity — efficient and inefficient workers earn the same
• Requires close supervision to prevent time-wasting
• Higher idle time costs — workers paid even when not producing

ii. Piece Rate System

Workers are paid a fixed rate for each unit produced — output determines earnings.

Wage = Units Produced × Rate per Unit

Advantages of piece rate:

• Strong incentive for productivity — workers earn more by producing more
• Lower supervision costs — workers self-motivate
• Labour cost per unit is more predictable
• Commonly used in Nepal’s carpet and garment industries

Disadvantages of piece rate:

• May encourage quantity at the expense of quality — workers rush to maximize pieces
• Earnings may be irregular — affecting worker financial stability
• Difficult to apply for complex or variable tasks
• May create conflict between workers over better-paying tasks

iii. Premium/Bonus Systems

A hybrid approach — workers receive a basic time rate (guaranteed) plus a bonus for exceeding a standard output level:

Halsey Premium Plan: Bonus = 50% × (Time Saved × Rate per Hour) Rowan Premium Plan: Bonus = (Time Saved / Standard Time) × Time Taken × Rate per Hour

These systems share the benefit of above-standard efficiency between employer and employee.

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5. Accounting for Overheads

5.1 Meaning and Classification

According to the ICMA, “Overhead is the aggregate of indirect material cost, indirect labour cost, and indirect expenses.”

According to Wheldon, “Overheads are all production costs other than direct materials and direct labour — they cannot be directly identified with specific cost units and must be allocated or absorbed on an appropriate basis.”

Overheads are classified by function:

i. Factory (Production/Manufacturing) Overheads: All indirect costs incurred in the factory — factory rent, depreciation of machinery, factory supervisor salaries, power and lighting, maintenance and repairs, factory insurance.

ii. Administration (Office) Overheads: Indirect costs of managing the business — office salaries, office rent, stationery, telephone, audit fees, directors’ fees.

iii. Selling and Distribution Overheads: Indirect costs of marketing and delivering products — advertising, sales staff salaries, carriage outward, delivery vehicles, after-sales service.

5.2 Overhead Accounting Process

The accounting process for overheads involves three stages:

Stage 1 — Allocation (Cost Centre Assignment): Overheads that can be directly attributed to a specific cost centre (department) are allocated directly to that centre.

Example: Depreciation of a specific machine in Department A → allocated directly to Department A.

Stage 2 — Apportionment (Sharing Between Cost Centres): Overheads that benefit multiple departments cannot be directly allocated — they are shared between departments on an equitable basis using an apportionment basis:

Overhead	Appropriate Apportionment Basis
Factory rent	Floor area of each department
Depreciation of building	Floor area
Lighting and heating	Floor area or metered consumption
Factory manager’s salary	Number of employees in each dept.
Canteen costs	Number of employees
Machine maintenance	Number of machines or machine hours
Power	Machine hours or horsepower of machines

Repeated Distribution (Reciprocal Services): Service departments (maintenance, canteen, stores) provide services to production departments — AND to each other. The cost of service departments must ultimately be absorbed into production department overheads through repeated (or simultaneous) distribution.

Step method: Allocate the largest service department’s costs first (to all departments benefiting), then work down.

Repeated distribution method: Allocate service departments’ costs to all departments including other service departments — repeat until service department balances are eliminated.

Stage 3 — Absorption (Into Cost Units): Once all overheads are attributed to production departments, they are absorbed into individual products using a predetermined overhead absorption rate (OAR):

$$OAR = \frac{\text{Budgeted Overhead}}{\text{Budgeted Activity Level}}$$

Common absorption bases:

i. Machine Hour Rate: OAR = Budgeted overhead / Budgeted machine hours → Used when production is machine-intensive

ii. Labour Hour Rate: OAR = Budgeted overhead / Budgeted direct labour hours → Used when production is labour-intensive

iii. Percentage on Direct Material Cost: OAR = (Budgeted overhead / Budgeted material cost) × 100

iv. Percentage on Prime Cost: OAR = (Budgeted overhead / Budgeted prime cost) × 100

v. Per Unit Rate: OAR = Budgeted overhead / Budgeted units produced → Only appropriate when all units are identical

5.3 Over-Absorption and Under-Absorption

If actual overhead differs from absorbed overhead (based on OAR):

Over-absorption: Overhead absorbed > Actual overhead incurred → Overhead over-absorbed → Credit to P&L (increases profit in cost accounts).

Under-absorption: Overhead absorbed < Actual overhead incurred → Overhead under-absorbed → Debit to P&L (reduces profit in cost accounts).

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6. Unit or Production Cost — Cost Sheet

6.1 Meaning of Cost Sheet

According to J.R. Batliboi, “A cost sheet is a statement that shows the cost of production of a given quantity of output — it classifies and presents all elements of cost in a structured format, enabling calculation of cost per unit.”

According to Wheldon, “A cost sheet is a detailed statement showing the various elements of cost incurred in producing goods or rendering services — it enables management to analyse, control, and reduce costs.”

6.2 Elements of Cost and Cost Sheet Structure

COST SHEET / STATEMENT OF COST
[Company Name]
For the Period: ____________    Output: _______ Units

                                              Total Cost    Cost per Unit
                                                 (Rs.)          (Rs.)
PRIME COST:
  Direct Materials:
    Opening Raw Material Stock       XXXXX
    Add: Purchases                   XXXXX
    Less: Closing Raw Material Stock (XXXXX)
    Raw Material Consumed                         XXXXX          XXXXX
  Direct Labour (Wages)                           XXXXX          XXXXX
  Direct Expenses                                 XXXXX          XXXXX
PRIME COST                                        XXXXX          XXXXX

Add: FACTORY OVERHEAD:
  Indirect Materials                              XXXXX
  Indirect Labour                                 XXXXX
  Factory Rent                                    XXXXX
  Factory Power                                   XXXXX
  Depreciation of Machinery                       XXXXX
  Total Factory Overhead                          XXXXX          XXXXX

FACTORY COST (WORKS COST)                         XXXXX          XXXXX

Add: Opening Work-in-Progress                     XXXXX
Less: Closing Work-in-Progress                   (XXXXX)
COST OF PRODUCTION                                XXXXX          XXXXX

Add: Opening Finished Goods Stock                 XXXXX
Less: Closing Finished Goods Stock               (XXXXX)
COST OF GOODS SOLD                                XXXXX          XXXXX

Add: ADMINISTRATION OVERHEAD                      XXXXX          XXXXX
COST OF PRODUCTION OF GOODS SOLD                  XXXXX          XXXXX

Add: SELLING AND DISTRIBUTION OVERHEAD            XXXXX          XXXXX
COST OF SALES (TOTAL COST)                        XXXXX          XXXXX

Add: PROFIT (or Less: LOSS)                       XXXXX          XXXXX
SELLING PRICE / SALES REVENUE                     XXXXX          XXXXX

Key formulas:

Prime Cost = Direct Materials + Direct Labour + Direct Expenses

Works (Factory) Cost = Prime Cost + Factory Overhead

Cost of Production = Works Cost + Opening WIP − Closing WIP

Cost of Goods Sold = Cost of Production + Opening Finished Goods − Closing Finished Goods

Total Cost = Cost of Goods Sold + Administration Overhead + Selling and Distribution Overhead

Profit = Sales − Total Cost

Selling Price = Total Cost + Profit (or Total Cost + Markup)

6.3 Historical Cost Sheet vs. Tender (Estimated) Cost Sheet

Historical Cost Sheet: Prepared after production is complete — records actual costs incurred. Used for cost control and performance evaluation.

Tender (Estimated) Cost Sheet: Prepared before production — estimates future costs based on past data and current price expectations. Used to prepare price quotations (tenders) for prospective customers or contracts.

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7. Cost Reconciliation Statement

7.1 Meaning and Reasons for Difference

According to J.R. Batliboi, “A cost reconciliation statement is prepared to reconcile the profit shown in the cost accounts with the profit shown in the financial accounts — they often differ because cost accounting and financial accounting treat certain items differently.”

Reasons for difference between Cost Profit and Financial Profit:

i. Opening and closing stock valuation: Cost accounts may use a different basis (FIFO, average) than financial accounts — or may include different items in overhead absorption. Different stock values mean different profits.

ii. Overheads absorbed vs. actual: Cost accounts use predetermined overhead absorption rates — leading to over or under-absorption. Financial accounts use actual overhead incurred.

iii. Items in financial accounts but not in cost accounts:

• Income tax (not a product cost)
• Dividend received (investment income)
• Profit/loss on sale of fixed assets
• Interest on investments
• Goodwill written off
• Penalties and fines
• Purely financial items (bank interest received/paid on investments)

iv. Items in cost accounts but not in financial accounts:

• Notional rent (imputed rent for owner-occupied premises)
• Notional interest on owner’s capital
• Depreciation on revalued assets

7.2 Format of Cost Reconciliation Statement

Cost Reconciliation Statement
                                                           Rs.
Profit as per Cost Accounts                               XXXXX

Add items in Financial A/cs but not Cost A/cs:
  Interest Received on Investments                        XXXXX
  Profit on Sale of Fixed Assets                          XXXXX
  Dividend Received                                       XXXXX
                                                          XXXXX
Less items in Financial A/cs but not Cost A/cs:
  Loss on Sale of Fixed Assets                           (XXXXX)
  Income Tax Provision                                   (XXXXX)
  Goodwill Written Off                                   (XXXXX)
  Penalty Paid                                           (XXXXX)
                                                         (XXXXX)

Add: Under-absorption of overhead (if overhead absorbed
     < actual overhead in cost accounts)                  XXXXX
Less: Over-absorption of overhead                        (XXXXX)

Add: Higher valuation of closing stock in financial A/cs  XXXXX
Less: Higher valuation of closing stock in cost A/cs     (XXXXX)

Add: Notional items in cost accounts not in financial:
  Notional Rent                                          (XXXXX)   [reduces cost profit]
  Notional Interest on Capital                           (XXXXX)   [reduces cost profit]

Profit as per Financial Accounts                          XXXXX

Alternatively — starting from Financial Profit and adjusting to arrive at Cost Profit.

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8. Cost Accounting in the Nepali Context

i. Manufacturing sector in Nepal: Nepal’s manufacturing sector — carpets, garments, cement, food processing, beverages, and construction materials — all benefit directly from cost accounting. The carpet industry (one of Nepal’s largest export earners) requires per-unit cost calculations to price competitively in international markets.

ii. Labour cost importance: In Nepal’s labour-intensive industries (carpets, garments, handicrafts), direct labour is often the largest single cost element — making piece-rate systems and labour cost control particularly important. Nepal’s minimum wage (Rs. 17,300/month for unskilled workers in 2024) establishes the floor for labour cost planning.

iii. Material cost control: Nepal’s manufacturing industries import significant raw materials — wool (for carpets), cotton and synthetic fibres (for garments), chemicals (for food processing). Import costs, including customs duties and inland transport, form part of material cost. Effective material control reduces waste and import costs.

iv. Overhead allocation challenges: Small Nepali manufacturers often lack formal overhead allocation systems — attributing all overheads to products loosely or not at all. This leads to mispricing (underpricing high-overhead products; overpricing low-overhead products) — a common cause of business failure.

v. Tender cost sheets: Nepal’s growing construction sector — with major road, hydropower, airport, and building projects — requires detailed tender cost sheets for bidding on government and private contracts. The Public Procurement Act requires competitive tendering, making accurate cost estimation critical for contractors.

vi. NRB and banking costs: Nepal’s banks use cost accounting principles to calculate the cost of funds (cost of deposits and borrowings) — informing lending rate decisions and branch profitability analysis. Net Interest Margin (NIM) analysis is essentially a banking sector cost accounting exercise.

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Conclusion

Cost accounting transforms raw financial data into actionable management information — revealing the true cost of products, identifying sources of inefficiency, supporting pricing decisions, and enabling managers to control costs in real time. For NEB Grade 12 students in Nepal, these tools are directly relevant to the industries that are central to Nepal’s economic future: manufacturing, construction, hospitality, and services.

As Colin Drury observed, “Cost accounting information is only as valuable as the decisions it enables — the purpose of collecting and analyzing cost data is not the data itself but the better decisions that the data makes possible.” For Nepal’s businesses competing in an increasingly open economy, those better decisions — on pricing, product mix, make-or-buy, and investment — are the difference between profitability and failure.

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Prepared for NEB Grade 12 Principles of Accounting — Unit 3: Cost Accounting Aligned with the National Curriculum Framework 2076, Curriculum Development Centre, Sanothimi, Bhaktapur