What you'll learn
Manufacturing accounts are prepared by businesses that convert raw materials into finished goods, such as furniture makers in Jamaica, beverage producers in Trinidad, or garment factories in Barbados. This revision guide covers how to prepare a manufacturing account, calculate cost of production, and understand the relationship between factory costs and the trading account. You'll learn to classify costs correctly and apply the manufacturing account format required for CSEC examinations.
Key terms and definitions
Prime Cost — the total of direct materials, direct labour, and direct expenses; represents the basic cost of converting raw materials into finished goods before factory overheads are added.
Factory Overheads — indirect costs of running the factory that cannot be traced directly to specific units of production, such as factory rent, depreciation of machinery, and supervisors' salaries.
Work-in-Progress (WIP) — partly finished goods at the beginning or end of an accounting period; requires valuation and adjustment in the manufacturing account.
Direct Materials — raw materials that can be directly identified in the finished product, such as wood in furniture or cocoa beans in chocolate production.
Direct Labour — wages paid to workers directly involved in converting raw materials to finished goods, such as machine operators or assembly workers.
Factory Cost of Goods Completed — the total cost of goods manufactured during the period, transferred to the trading account at cost or market value.
Indirect Materials — materials used in the factory that cannot be traced to specific units, such as lubricating oil for machinery or cleaning supplies.
Notional Profit — the difference between factory cost and market value when goods are transferred to the trading account above cost; not a real profit but an accounting adjustment.
Core concepts
Purpose of the Manufacturing Account
The manufacturing account serves as a preliminary account to the trading account for businesses that produce their own goods. It calculates the cost of goods manufactured during the accounting period.
Key purposes include:
- Determining the factory cost of production for goods completed
- Separating manufacturing costs from selling and distribution costs
- Providing cost information for management decision-making
- Calculating the value of finished goods to transfer to the trading account
- Identifying cost trends and controlling factory expenses
Manufacturing businesses prepare this account before the trading account, as the cost of goods completed flows into "Purchases" or replaces it entirely in the trading section.
Classification of Manufacturing Costs
Manufacturing costs divide into three main categories:
Direct Costs (Prime Cost Components)
Direct costs are traceable to specific units of production:
- Direct Materials: Opening stock of raw materials, plus purchases, less closing stock equals materials consumed. Examples include timber for furniture, steel for gates, or fabric for clothing.
- Direct Labour: Wages for production workers, machine operators, and piece-work employees directly manufacturing goods.
- Direct Expenses: Royalties on production, cost of special designs, or hiring of special equipment for specific jobs.
Indirect Costs (Factory Overheads)
Overheads support production but cannot be traced to individual units:
- Indirect Materials: Factory consumables, lubricants, cleaning supplies, small tools
- Indirect Labour: Factory supervisors' salaries, maintenance staff wages, storekeepers' salaries
- Indirect Expenses: Factory rent, rates, lighting and heating, depreciation of factory machinery and buildings, insurance of factory premises, power for machinery
Non-Manufacturing Costs
These appear in the profit and loss account, not the manufacturing account:
- Administration expenses (office salaries, office rent)
- Selling and distribution costs (advertising, delivery expenses, salespeople's salaries)
- Financial charges (bank interest, loan interest)
Work-in-Progress Adjustments
Work-in-Progress represents partly completed goods valued at the cost incurred to date.
Opening WIP — goods partly completed at the start of the period:
- Added to current period costs
- Represents resources invested in previous period
- Increases total costs to be accounted for
Closing WIP — goods partly completed at period end:
- Deducted from total costs
- Represents incomplete production
- Carried forward to next period as opening WIP
The adjustment ensures only completed production is costed: Prime Cost + Factory Overheads + Opening WIP - Closing WIP = Factory Cost of Goods Completed
Format of the Manufacturing Account
The standard format follows a logical cost accumulation sequence:
MANUFACTURING ACCOUNT FOR THE YEAR ENDED [DATE]
$ $
Direct Materials:
Opening Stock of Raw Materials X
Add: Purchases of Raw Materials X
Add: Carriage Inwards on Raw Materials X
---
X
Less: Closing Stock of Raw Materials (X)
Raw Materials Consumed X
Direct Labour X
Direct Expenses X
-------
PRIME COST X
Factory Overheads:
Indirect Materials X
Indirect Labour X
Factory Rent and Rates X
Factory Light and Heat X
Depreciation - Factory Machinery X
Depreciation - Factory Buildings X
Factory Insurance X
Other Factory Overheads X
X
-------
X
Add: Opening Work-in-Progress X
-------
X
Less: Closing Work-in-Progress (X)
-------
FACTORY COST OF GOODS COMPLETED X
=======
Transfer to Trading Account
The factory cost of goods completed transfers to the trading account in one of two ways:
Transfer at Cost
Most common method — goods transfer at actual production cost:
- No adjustment needed
- Factory cost becomes "cost of goods manufactured" in trading account
- Replaces or supplements purchases
Transfer at Market Value
Occasionally used when management wants to show factory performance:
- Goods valued at selling price or estimated market value
- Creates notional profit in manufacturing account
- Market value transfers to trading account
- Provision for unrealised profit created to cancel notional profit
Example:
Factory Cost of Goods Completed 50,000
Transfer to Trading Account at Market Value 60,000
-------
Notional Profit 10,000
This notional profit is artificial and must be eliminated through a provision for unrealised profit of $10,000 in the balance sheet.
Integration with Financial Statements
The manufacturing account links to other financial statements:
Connection to Trading Account:
- Factory cost of goods completed flows into the trading account
- Either replaces purchases (if all goods are self-manufactured)
- Or supplements purchases (if some goods are bought for resale)
Connection to Balance Sheet:
- Opening and closing stocks of raw materials
- Opening and closing work-in-progress
- Factory machinery and buildings (for depreciation)
- Provision for unrealised profit (if transfer above cost)
Flow of Stock Values:
- Raw materials stock (manufacturing account)
- Work-in-progress (manufacturing account)
- Finished goods stock (trading account)
Worked examples
Example 1: Basic Manufacturing Account
Caribbean Furniture Ltd manufactures office desks in Kingston, Jamaica. The following information is available for the year ended 31 December 2023:
- Opening stock of raw materials (wood and hardware): $45,000
- Purchases of raw materials: $180,000
- Closing stock of raw materials: $38,000
- Direct wages: $95,000
- Factory supervisor's salary: $42,000
- Factory rent: $24,000
- Depreciation of factory machinery: $15,000
- Factory electricity: $8,500
- Opening work-in-progress: $12,000
- Closing work-in-progress: $15,500
Required: Prepare the Manufacturing Account for the year ended 31 December 2023.
Solution:
CARIBBEAN FURNITURE LTD
MANUFACTURING ACCOUNT FOR THE YEAR ENDED 31 DECEMBER 2023
$ $
Direct Materials:
Opening Stock of Raw Materials 45,000
Add: Purchases of Raw Materials 180,000
--------
225,000
Less: Closing Stock of Raw Materials (38,000)
Raw Materials Consumed 187,000
Direct Labour (Direct Wages) 95,000
----------
PRIME COST 282,000
Factory Overheads:
Factory Supervisor's Salary 42,000
Factory Rent 24,000
Depreciation - Factory Machinery 15,000
Factory Electricity 8,500
89,500
----------
371,500
Add: Opening Work-in-Progress 12,000
----------
383,500
Less: Closing Work-in-Progress (15,500)
----------
FACTORY COST OF GOODS COMPLETED 368,000
==========
Example 2: Manufacturing Account with Transfer Pricing
Island Beverages produces fruit juices in Barbados. For the year ended 30 June 2024:
- Raw materials consumed: $125,000
- Direct labour: $68,000
- Carriage on raw materials: $3,200
- Prime cost: $196,200
- Factory overheads: $54,800
- Opening WIP: $8,000
- Closing WIP: $11,000
Goods are transferred to the trading account at 120% of factory cost.
Required: (a) Prepare the Manufacturing Account (b) Calculate the notional profit
Solution:
(a)
ISLAND BEVERAGES
MANUFACTURING ACCOUNT FOR THE YEAR ENDED 30 JUNE 2024
$ $
Raw Materials Consumed 125,000
Direct Labour 68,000
Carriage on Raw Materials 3,200
----------
PRIME COST 196,200
Factory Overheads 54,800
----------
251,000
Add: Opening Work-in-Progress 8,000
----------
259,000
Less: Closing Work-in-Progress (11,000)
----------
FACTORY COST OF GOODS COMPLETED 248,000
Transfer to Trading Account (120% × $248,000) 297,600
----------
NOTIONAL PROFIT 49,600
==========
(b) Notional Profit = $297,600 - $248,000 = $49,600
This represents the artificial markup applied to internally manufactured goods. A provision for unrealised profit of $49,600 must be created in the balance sheet to eliminate this notional profit.
Example 3: Identifying Cost Classifications
Grenada Garments manufactures school uniforms. Classify the following items as Direct Materials (DM), Direct Labour (DL), Factory Overheads (FO), or Not Manufacturing Cost (NMC):
- Fabric for school shirts — DM
- Factory cleaner's wages — FO (Indirect Labour)
- Buttons and zips — DM
- Depreciation of sewing machines — FO
- Salesperson's commission — NMC (Selling expense)
- Wages of machinists — DL
- Thread and needles — FO (Indirect Materials - too small to trace)
- Office manager's salary — NMC (Administrative expense)
- Factory supervisor's salary — FO (Indirect Labour)
- Electricity for factory — FO
Mark scheme notes: 1 mark per correct classification. Items 3 and 7 often confuse students — buttons/zips are traceable to garments (direct), while thread is consumed generally (indirect).
Common mistakes and how to avoid them
Confusing direct and indirect costs: Remember, direct costs must be traceable to specific units. Factory rent affects all production, so it's always indirect. Wages for assembly workers making specific products are direct.
Including non-manufacturing costs: Office salaries, advertising, and delivery costs belong in the profit and loss account, not the manufacturing account. Only factory-related costs appear in manufacturing accounts.
Incorrect work-in-progress adjustments: Opening WIP is added (represents prior costs being completed); closing WIP is deducted (incomplete, carry forward). Students often reverse these.
Misplacing carriage costs: Carriage inwards on raw materials increases material costs in the manufacturing account. Carriage outwards (delivery to customers) is a selling expense in the profit and loss account.
Forgetting stock adjustments for raw materials: You must calculate materials consumed using opening stock + purchases - closing stock. Don't just use purchases figure.
Treating notional profit as real: When goods transfer above cost, the profit is notional (not real) and must be eliminated with a provision. It doesn't increase actual business profit.
Exam technique for "Manufacturing Accounts"
Command word "Prepare": Present the full manufacturing account in proper format with clear headings, sub-totals for Prime Cost, neat columns, and the final figure clearly labeled as Factory Cost of Goods Completed. Markers award presentation marks.
Show all workings: For stock calculations, WIP adjustments, or prime cost, show intermediate steps. Partial marks are awarded even if final answer is incorrect. Calculate materials consumed separately: Opening stock + Purchases - Closing stock.
Time management: A full manufacturing account typically carries 12-15 marks. Allocate 15-18 minutes. If you're also preparing trading and profit/loss accounts, complete the manufacturing account first as its output feeds into trading.
Classification questions: When asked to classify costs as direct/indirect or identify factory overheads, use the traceability test. Can this cost be traced to a specific unit of production? If yes, it's direct; if no, it's indirect or overhead.
Quick revision summary
Manufacturing accounts calculate the factory cost of goods completed for businesses that convert raw materials into finished products. Start with direct materials consumed (opening stock + purchases - closing stock), add direct labour and direct expenses to find prime cost. Add factory overheads, adjust for work-in-progress (add opening, deduct closing), and arrive at factory cost of goods completed. This figure transfers to the trading account, usually at cost. Distinguish carefully between direct costs (traceable to units), factory overheads (indirect factory costs), and non-manufacturing expenses (which don't appear in this account). Master the format and classifications to secure strong marks in this reliable exam topic.