The Purpose of Manufacturing Accounts

When a business manufactures goods, the standard Income Statement isn't enough. We need a separate account to calculate how much it cost to actually make the goods before we can calculate the profit from selling them.

1. Elements of Cost

Costs are divided into two main categories in the factory:

Direct Costs (Prime Cost)

Costs that can be directly linked to a specific unit of production:

Direct Materials (Raw materials used)
Direct Labour (Factory wages for workers making the product)
Direct Expenses (e.g., royalties paid per unit)

Direct Materials + Direct Labour + Direct Expenses = Prime Cost

Indirect Costs (Factory Overheads)

Costs required to run the factory but not linked to a specific unit:

Factory Rent and Rates
Indirect Wages (Factory supervisors/cleaners)
Depreciation of Factory Machinery

2. Work-in-Progress (WIP)

At the end of the year, some items are only half-finished. These are called Work-in-Progress. We must adjust our costs to reflect this:

Add Opening WIP (Work started last year and finished this year).
Subtract Closing WIP (Work started this year but not yet finished).

Prime Cost + Factory Overheads + Opening WIP - Closing WIP = Cost of Production

Why Manufacturing Accounts Are Prepared

To calculate the cost of producing goods
To control production costs
To help management make pricing decisions

Exam Tip:-

Raw Materials are treated exactly like "Purchases" in the Trading account,you must adjust for opening and closing inventory of raw materials to find the "Cost of Materials Consumed.

Example Manufacturing Account
Direct Materials
20,000

Direct Labour
15,000

Prime Cost
35,000

Add: Factory Overheads
10,000

Factory Cost
45,000

Add: Opening Work in Progress
5,000

Less: Closing Work in Progress
3,000

Cost of Production
47,000

Practice Question

The following information relates to a manufacturing business:

Direct materials = 30,000
Direct labour = 20,000
Factory overheads = 15,000
Opening work in progress = 6,000
Closing work in progress = 4,000

Calculate the Cost of Production.

Quick Check

Which cost is included in Prime Cost?

Factory rent
Direct labour
Office salaries

Show Answer

Correct Answer: Direct labour

Quick Check

1. Where would you record "Office Rent" in a manufacturing business?

A. Manufacturing Account (Factory Overhead)
B. Income Statement (Operating Expense)
C. Added to Prime Cost

View Correct Answer

Correct Answer: B. Only costs related to the factory go into the Manufacturing Account. Office and selling expenses go into the Profit & Loss section of the Income Statement.