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Fundamentals of Financial and Cost Accounting · Cost, Cost Centre, Cost Unit and Cost Drivers

Concept of Cost, Costing and Cost Accounting

Updated 10 October 2026 · Fact-checked

Cost is the amount of resources given up to get a product or service. Costing is the technique of finding that cost. Cost accounting records, classifies and analyses costs to find cost, control it and help decisions. Cost accountancy is the wider application of costing and cost accounting principles.

Understand Concept of Cost, Costing and Cost Accounting

Start with cost. Cost is the value of resources sacrificed to make a product or provide a service. If a baker in Pune spends ₹40 on flour, fuel and labour to make one loaf, the cost of that loaf is ₹40. Cost is not the same as price. Price is what the customer pays. Cost is what you spent.

Costing is the set of techniques and processes used to find out cost. It covers methods such as job costing and process costing, and techniques such as marginal costing and standard costing. Think of costing as the method of working out the cost figure.

Cost accounting is the process of recording, classifying, allocating and summarising costs, and then reporting them to management. Its purpose goes beyond finding cost. It also helps to control cost and to take decisions on pricing, make or buy, and similar choices.

Cost accountancy is the widest term. It covers cost accounting plus costing techniques, cost control, cost reduction, cost audit and the use of cost information in management. Remember the order from narrow to wide: cost, costing, cost accounting, cost accountancy.

Cost accounting differs from financial accounting. Financial accounting reports the overall profit and financial position of the whole business to outside users such as owners, lenders and tax authorities. Cost accounting works at the level of products, jobs, departments and processes, mainly for managers inside the business.

Key formulas to remember

Scope order of terms
Cost < Costing < Cost Accounting < Cost Accountancy
Each term is wider than the one before. Cost accountancy is the widest.
Main objectives of cost accounting
Ascertain cost + Control cost + Fix selling price + Help decision-making + Measure profitability
Also remember cost reporting to management and helping with budgets and cost reduction.
Cost accounting vs financial accounting: users
Cost accounting → internal management; Financial accounting → owners, lenders, tax authorities and other outsiders
Financial accounting is also governed by law and accounting standards. Cost accounting is mostly for internal use.
Cost accounting vs financial accounting: focus
Cost accounting → products, jobs, departments, processes; Financial accounting → whole business
Cost accounting looks at parts of the business. Financial accounting looks at the whole.

How to solve Concept of Cost, Costing and Cost Accounting questions

Questions on this topic test definitions and differences. Use this method to pick the right option quickly.

  1. 1Read the stem and find the keyword: cost, costing, cost accounting, cost accountancy, objective or difference.
  2. 2Decide the level of the term. A single sacrifice of resources is cost. A technique or method is costing. Recording and analysis is cost accounting. The widest application including audit and control is cost accountancy.
  3. 3If the question asks for an objective, check whether the option is about finding, controlling or using cost information. Options about only tax returns or only outside reporting are usually financial accounting.
  4. 4If the question asks for a difference, identify the dimension: users, purpose, level of detail, legal requirement or time period.
  5. 5Match the option to the correct side. Internal and part-wise points belong to cost accounting. External and whole-business points belong to financial accounting.
  6. 6Eliminate options that use absolute words like only or never, and options that swap the two systems.
  7. 7Pick the remaining option and move on.

Quickest way: Narrow-to-wide and inside-vs-outside check

When to use it: Use it for definition and difference MCQs when you have under a minute per question.

  1. For definitions, rank the terms from narrow to wide: cost, costing, cost accounting, cost accountancy.
  2. Look for clue words: sacrifice means cost, technique means costing, recording and analysis means cost accounting, audit and control together means cost accountancy.
  3. For differences, ask one question: who uses this, insiders or outsiders?
  4. Insiders and parts of the business point to cost accounting. Outsiders and the whole business point to financial accounting.
  5. Eliminate the options that fail this check and mark the answer.

Common mistakes in Concept of Cost, Costing and Cost Accounting

  • Treating cost and price as the same thing.

    In daily speech people say the cost of a phone when they mean the price they paid.

    Fix: In the exam, cost is the resources spent to make or provide something. Price is what the seller charges. The gap between them is profit or loss.

  • Using costing and cost accounting as exact synonyms.

    Both sound alike and textbooks often use them close together.

    Fix: Costing is the technique of finding cost. Cost accounting also includes recording, classifying, reporting and using the data for control and decisions.

  • Thinking cost accounting is only for factories.

    Most examples in textbooks come from manufacturing.

    Fix: Cost accounting also applies to services such as hospitals, transport and banks. Any activity with a cost can use it.

  • Saying financial accounting is meant for managers and cost accounting for outsiders.

    Students reverse the two under time pressure.

    Fix: Remember: cost accounting is for people inside, financial accounting is for people outside, such as owners, lenders and tax authorities.

  • Assuming cost accounting only records past costs.

    Students focus on the word accounting and think of past records only.

    Fix: Cost accounting also supports planning and control. Budgets, standards and estimates look at the future.

  • Choosing cost accounting as the widest term.

    It is the term used most often in the chapter.

    Fix: Cost accountancy is wider because it includes cost accounting, costing, cost control, cost reduction and cost audit.

Worked examples

Example 1

Which of the following is the widest term? (A) Cost (B) Costing (C) Cost accounting (D) Cost accountancy

Show the solution
  1. Cost is a single sacrifice of resources, the narrowest idea.
  2. Costing is the technique of finding cost, which is wider than cost itself.
  3. Cost accounting includes recording, classifying and reporting, so it is wider than costing.
  4. Cost accountancy includes cost accounting and also cost control, cost reduction and cost audit, so it is the widest.

Answer: (D) Cost accountancy

Example 2

Which of the following is a feature of cost accounting rather than financial accounting? (A) Prepared mainly for shareholders and lenders (B) Reports profit of the whole business (C) Analyses cost of each product or department for management (D) Follows a format required by law for annual reporting

Show the solution
  1. Options A, B and D describe financial accounting: outside users, whole business and legal format.
  2. Option C talks about each product or department, which is a part of the business.
  3. Product-wise and department-wise analysis for management is the focus of cost accounting.
  4. So only option C fits cost accounting.

Answer: (C) Analyses cost of each product or department for management

Exam tips

  • Learn the four terms as a ladder: cost, costing, cost accounting, cost accountancy. Many MCQs test the order of scope.
  • For differences, memorise users, purpose, level of detail and legal requirement. Most options come from these.
  • Watch for options that swap cost accounting and financial accounting. Check who the user is before you pick.
  • Do not spend more than a minute on these questions. They are quick marks. Save time for numerical questions.
  • There is no negative marking, so always attempt every question. Eliminate two options and guess if unsure.

Practice questions from Cost, Cost Centre, Cost Unit and Cost Drivers

Concept of Cost, Costing and Cost Accounting in other exams

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

Concept of Cost, Costing and Cost Accounting: frequently asked questions

What is the difference between costing and cost accounting?

Costing is the technique or method of finding cost. Cost accounting is wider. It records, classifies and analyses costs and reports them to management for control and decisions.

What are the main objectives of cost accounting?

The main objectives are to ascertain cost, control cost, help fix selling prices, support management decisions and measure profitability. It also helps with cost reports and budgets.

What is cost accountancy?

Cost accountancy is the widest term. It covers cost accounting, costing techniques, cost control, cost reduction and cost audit, and the use of cost information in management.

How is cost accounting different from financial accounting?

Cost accounting is mainly for internal management and works at the level of products, jobs and departments. Financial accounting reports the whole business to outside users and follows legal and standard requirements.