Cost Accounting · Process Costing

Process Costing: Meaning, Features and Applicability

Updated 10 October 2026 · Fact-checked

Process costing is a method of costing used when identical or similar units are produced continuously through a series of processes. You collect costs for each process over a period and divide by the output of that process to get a cost per unit. The output of one process becomes the input of the next.

Understand Process Costing: Meaning, Features and Applicability

Some businesses make one customer's order at a time, like a printing press making a wedding card order. Others make the same product day and night, like a sugar mill or a cement plant. You cannot trace cost to one unit in such a plant. So you do the next best thing: collect cost process by process and average it over the units produced.

Process costing is the method of costing used where production is continuous, units are alike, and the product passes through two or more distinct stages. Each stage is a process, and it has its own account. Costs of material, labour and overheads are charged to the process where they are incurred.

The cost of a process is spread over the output of that period. The output of one process moves to the next process at its cost. The last process gives finished goods. Because production never stops, there is usually some unfinished work at the end of a period. That is why topics like losses and equivalent production come with this method.

Process costing is a method of costing, like job and contract costing. It is not a technique like marginal costing. The method tells you how costs are collected. It depends on the nature of production, not on the size of the firm.

This topic is mostly theory. In the exam it appears as MCQs, short notes and 'distinguish between' questions. It also lays the base for the numerical process cost problems you will study later.

Key rules to remember

Cost per unit of a process: Cost per unit = (Total process cost − Realisable value of normal loss) ÷ (Input units − Normal loss units); Basic idea. Details and the treatment of work-in-progress are in the later process costing topics.
Cost transferred to next process: Transfer = Units completed × Cost per unit; The transfer becomes the opening input cost of the next process.
Process account structure: Debit: opening WIP, materials, labour, direct expenses, overheads, abnormal gain. Credit: normal loss (at scrap value), abnormal loss, closing WIP, transfer to next process or finished goods.; The units and the amounts on the two sides must balance. Abnormal loss is debited to the Abnormal Loss account and credited to the process account.

How to solve Process Costing: Meaning, Features and Applicability questions

For any theory question on meaning, features, applicability or comparison, use this method.

1Read the verb: define, state features, list industries, distinguish, or discuss merits and limits.
2Start with a one-line definition: continuous production, similar units, series of processes, cost per process.
3List features as short numbered points, each with a few words of reason.
4For industries, name the product and the processes, such as chemicals, textiles, paper, sugar, cement.
5For a distinction, draw two columns on basis of nature of production, cost unit, cost collection, work in progress, and cost ascertainment.
6Add one example for each side.
7Close with a one-line conclusion if the question asks to discuss.

Quickest way: Three-test check for process costing

When to use it: Use it for MCQs that ask which method suits a given business.

Is production continuous and in standard units? If yes, think process costing.
Is there a series of stages, with each output feeding the next? If yes, process costing is confirmed.
Is work done to a customer's order, or in lots? If yes, it is job or batch costing instead.
Watch for words like 'normal loss', 'by-product' or 'equivalent units'. They are common in process costing and usually indicate it, but they are not exclusive to it. Normal loss also arises in batch and job costing, and by-products occur under other methods too, so confirm with the first two tests.

Common mistakes in Process Costing: Meaning, Features and Applicability

Treating process costing as a technique like marginal costing.
Both are in the list of costing 'types'.
Fix: Remember: job, batch, contract, process and operating costing are methods. Marginal and standard costing are techniques.
Saying each unit's cost is found exactly in process costing.
Students mix it with job costing.
Fix: Say the cost is an average per unit, found by dividing process cost by output.
Writing that there is no work in progress in process costing.
Students think continuous means nothing is left unfinished.
Fix: State that opening and closing work in progress is common and is handled using equivalent units.
Confusing batch costing with process costing because both make many similar units.
Both deal with many identical units.
Fix: A batch is a defined lot with a start and an end, and it has its own cost sheet. Process production is continuous and cost is collected by process and period.
Listing industries without naming the processes.
Students memorise only the industry names.
Fix: Add the stages, for example sugar: crushing, boiling, crystallising, packing.

Worked examples

Example 1

Distinguish between job costing and process costing on any four points.

Show the solution

Choose bases: nature of production, cost unit, cost collection and work in progress.
Write each side in a short phrase.
Add an example at the end.

Answer: Nature of production: job costing handles work done to a customer's order; process costing handles continuous production of like units. Cost unit: in job costing it is the job; in process costing it is a standard unit such as a tonne or litre. Cost collection: job costing uses a job cost sheet for each job; process costing uses a process account for each process and period. Work in progress: in job costing it is the incomplete jobs, valued at cost incurred so far; in process costing it is unfinished units valued through equivalent production. Example: furniture made to order is job costing; paper manufacture is process costing.

Example 2

Which of the following is most suitable for process costing? (A) A shipbuilder making one ship to a buyer's design (B) A chemical plant producing a standard fertiliser in continuous stages (C) A printer producing 500 wedding invitation cards for a customer (D) A builder constructing a bridge under a contract

Show the solution

Option A is made to one buyer's order, so it fits job or contract costing.
Option C is a specific customer order, so it is job costing.
Option D is a long-term contract, so it is contract costing.
Option B has continuous production, standard units and successive stages. This fits process costing.

Answer: Option B

Exam tips

Prepare a ready two-column table of job versus process costing. It is the most repeated question.
In MCQs, spot keywords: 'continuous', 'standard product', 'successive processes'.
Write at least four features and tie each to a one-line reason to earn full marks.
Name specific industries with their processes, not just the industry.
Do not spend long on this topic. Move on to normal loss and equivalent production, where numerical marks are.

Practice questions from Process Costing

Process Costing: Meaning, Features and Applicability in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Process Costing: Meaning, Features and Applicability: frequently asked questions

What is process costing in simple words?

It is a method of finding cost where products are made continuously through successive stages. You collect cost for each process and divide it by that process's output to get cost per unit.

Which industries use process costing?

Industries with continuous, standardised production use it, such as chemicals, textiles, paper, sugar, cement, oil refining and food processing. Each has clear stages through which the product flows.

How is process costing different from batch costing?

Batch costing handles a defined lot of similar items with its own cost sheet. Process costing handles continuous production and collects cost by process and time period.

What are the limitations of process costing?

Costs are averages, so they hide differences between units. Valuing work in progress needs estimates of completion. Costs are known only after the period ends, which limits control unless standards are also used.