Manufacturing Accounts 1 / 2

Preparing manufacturing accounts

Why are manufacturing accounts needed?

If a business is simply buying and selling goods, then:

Sales - Cost of goods sold = Gross Profit

Cost of goods sold = 
+ Opening inventories
+ Purchases 
- Closing inventories 

However, if the business is manufacturing good itself then a little more work is needed in order to calculate the cost of actually making the goods, and the calculation statement is known as a manufacturing account.

Production Costs

If a business actually makes the goods that they will sell, we need to calculate the cost of producing the goods and use this instead of 'purchases' in the trading account. 

There are two types of production costs

  1. Direct Costs

    These are the costs directly associated and measurable for each unit produced. 

    They are directly related to the level of production.

    The main direct costs are:
    Direct materials 
    Direct labour
    Direct expenses ( e.g. packaging and royalty)

    The total of the direct costs is known as the prime cost.

  2. Indirect Costs

    These are all other costs concerned with production i.e. other costs in the factory. 

    Examples include:
    Rent of the factory
    Lighting and heating of the factory
    Indirect labour (supervisor salaries) 
    Depreciation of factory plant and equipment

    Indirect costs are also known as overheads.

Inventories

A manufacturing company is likely to have three types of inventories.

  • Finished Goods

    These are goods that have been completely produced and are ready for sale. 

    The cost of goods sold in the trading account will be:
    + Opening inventory of finished goods
    + Cost of production
    - Closing inventory of finished goods

  • Raw Materials

    The business will be buying raw materials for production, for example, wood - if they are manufacturing desks, and is also likely to carry inventories of raw materials at the beginning and the end of the period. 

    In the manufacturing account we need to know the raw materials actually used in production during the period. 

    This will be:
    + Opening inventory of raw materials
    + Purchases of raw materials
    - Closing inventory of raw materials

  • Work In Progress

    These are goods that we are producing but are not yet finished at the end of the period (they will be finished during the next period and will then be finished goods ready for sale). 

    The total production costs will include the cost of the work that has been done on this work-in-progress, but we require the cost of producing the cost of goods that have been finished. 

    This will be:
    + Opening inventory of work-in-progress
    + Total production costs
    - Closing inventory of work-in-progress.

Pro-forma Manufacturing Account

Opening Inventory of WIPx
Direct costs:
Opening inventory of direct materialsx
Purchases of direct materialsx
Less: closing inventory of direct materials(x)
x
Direct labourx
Other direct costsx
Prime costx
Indirect costs:
Indirect labourx
Depreciation of factory plant and equipmentx
Factory rentx
Factory heating and lightingx
Other indirect factory costsx
x
x
Less closing inventory of WIP(x)
Cost of production of finished goods (To be transferred to the trading account)x

Example

The following balances have been extracted from the books of Cow Ltd. as at 30/6/2019

Inventories at 1 July 2018
Raw materials31,200
Work-in-Progress (WIP)37,920
Finished Goods88,400
Factory wages:
Direct686,400
Indirect262,000
Electricity62,400
General Factory Expenses129,600
Maintenance Expenses84,200
Purchases of Raw Materials596,000
Sales2,712,000
Depreciation of Plant and Machinery43,200

Additional Information

  • At 30/6/2019, inventories were as follows:

    Raw materials 23,800
    WIP 33,360
    Finished goods 103,200

  • Electricity and maintenance expenses are to be split 80% to the factory and 20% to the company's offices.

  • At 30/6/2019, an electricity bill of $3,840 remained unpaid, and maintenance costs paid in advance amounted to $3,640.

Produce a manufacturing account and a statement of profit and loss:

Manufacturing account
Opening Inventory of WIP37,920
Direct costs:
Opening inventory of direct materials31,200
Purchases of direct materials596,000
Less: closing inventory of direct materials(23,800)
603,400
Direct labour686,400
Other direct costs-
Prime cost1,289,800
Indirect costs:
Indirect labour262,000
Depreciation of factory plant and equipment43,200
Electricity 80% x (62,400 + 3,840)52,992
Other indirect factory costs (general)129,600
Maintenance expenses 80% x (84,200 - 3,640)64,448
552,240
1,879,960
Less closing inventory of WIP(33,360)
Cost of production of finished goods (To be transferred to the trading account)1,846,600

Statement of profit and loss

Sales2,712,000
Less: Cost of Sales
Opening inventory of finished goods88,400
From manufacturing account1,846,600
Less: Closing inventory of finished goods(103,200)1,831,800
Gross Profit880,200

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