Cost and Management Audit · Cost Audit Documentation, Audit Process and Execution

Form, Content and Extent of Cost Audit Documentation

Updated 11 October 2026 · Fact-checked

Cost audit documentation is the record of the work a cost auditor does: working papers and evidence, on paper or in electronic form. SCA 102 para 6.3 says its content and form depend on size, computerisation, assessed risk, methodology and the nature of the procedure. To answer, name these factors and apply them to the case.

Understand Form, Content and Extent of Cost Audit Documentation

Cost audit documentation is the written trail of your audit. It shows what you did, what evidence you got and what you concluded. Without it, nobody can check that you followed the Cost Auditing Standards.

SCA 102 defines audit documentation as the records, in physical or electronic form, including working papers prepared by and for, or obtained and retained by, the cost auditor in connection with the audit. Audit working papers are the documents which record all audit evidence obtained during the audit. They support the audit work done, to provide assurance that the audit was performed in line with the relevant Cost Auditing Standards.

There is no fixed template. Para 6.3 of the Application Guidance says the content and form depend on factors such as: (a) the size and complexity of the auditee's operations, (b) the extent of computerisation of cost records, (c) the assessed risks of material misstatement of cost, (d) the cost audit methodology and tools used, for example whether automated queries were used to get evidence from cost records, and (e) the nature of the audit procedure to be performed.

So a large multi-product plant with a high-risk area needs fuller files than a small single-product unit. The extent follows the risk and the work done, not a set page count.

Form matters too. Documentation may be on paper or in electronic form. Para 6.2 adds that for electronic files, special care may be needed to protect against accidental deletion or tampering.

The content must show who did the work. Para 5.5 requires you to record the characteristics of the specific items or matters tested, the persons who performed and reviewed the procedures, with relevant dates and the extent of review. Para 6.13 says the names of team members who prepared documents and details of the auditor's review are a necessary part of the documentation.

Key rules to remember

Factors affecting content and form (SCA 102, para 6.3): Size and complexity | Computerisation of cost records | Assessed risks of material misstatement of cost | Methodology and tools used | Nature of audit procedure; Five factors, labelled (a) to (e). The text says 'such as', so the list is illustrative, not closed.
What to record for procedures (para 5.5): Items or matters tested + who performed + who reviewed + dates + extent of review; Applies when documenting the nature, timing and extent of procedures.
Timing and assembly (paras 6.14, 6.16): Prepare on time; assemble as the audit goes on; complete the final file within a reasonable time; no deletion before the retention period ends; Documentation prepared after the work is likely to be less accurate than that prepared during execution.
Alternative procedures (para 6.11): Document how the alternative procedure achieves the aim of the requirement + the reasons for the departure; Applies only in exceptional circumstances.

How to solve Form, Content and Extent of Cost Audit Documentation questions

Use this method for any question on form, content or extent of documentation. It keeps your answer tied to the standard and to the case facts.

1Read the question and mark the facts given: size, computerisation, risk areas, tools used, procedures done.
2State the definition briefly: audit documentation, and working papers as records of audit evidence.
3List the para 6.3 factors, (a) to (e), as the basis for form and content.
4Link each fact in the case to a factor, and say whether it increases or reduces the detail needed.
5State what the file must show: items tested, who performed and reviewed, dates, extent of review (paras 5.5, 6.13).
6Add the form points: paper or electronic, and safeguards against deletion or tampering (para 6.2).
7Add timing and retention points if relevant: prepare on time, assemble the file, do not discard documents (paras 6.14, 6.16).
8Close with a one-line conclusion on the extent of documentation for this engagement.

Quickest way: Five-factor recall with case mapping

When to use it: For short 5-7 mark answers or when an MCQ asks which factor affects documentation.

Write the five factors in order: size, computerisation, risk, methodology and tools, nature of procedure.
Match each case fact to one factor in one line.
Add one line on who did and reviewed the work, with dates.
Stop. Add retention only if the question mentions assembly or the file.

Common mistakes in Form, Content and Extent of Cost Audit Documentation

Giving a fixed list of documents every audit must have.
Students memorise checklists from practice.
Fix: State that content and form depend on the para 6.3 factors. Give examples of working papers only as illustrations.
Treating the para 6.3 factors as a closed list.
Lists in books look exhaustive.
Fix: The paragraph says 'such as'. Say the factors include these five and mention others only if the case supports them.
Leaving out who prepared and who reviewed the work.
Students focus on the evidence, not the people.
Fix: Always add the preparer, reviewer, dates and extent of review (paras 5.5, 6.13).
Assuming documentation can be written up at the end of the audit.
Time pressure during fieldwork.
Fix: Quote para 6.14: late documentation is likely to be less accurate. The file is assembled as the audit goes on.
Ignoring electronic records.
Students think of files as paper.
Fix: Mention para 6.2 on electronic form, and para 6.3(b) and (d) on computerisation and automated queries.
Saying the auditor may discard working papers once the report is signed.
Confusing signing the report with the end of retention.
Fix: After the final file is assembled, no documentation of any nature is deleted or discarded before the end of its retention period (para 6.16).

Worked examples

Example 1

Sunrise Auto Components Ltd, Pune, has a large multi-plant operation, keeps cost records in an ERP and has a high-risk area in overhead allocation. The cost auditor used automated queries to extract data from cost records. Explain the factors that will shape the form and content of the cost audit documentation.

Show the solution

Identify the rule: SCA 102, para 6.3 lists factors that determine content and form.
Size and complexity: multi-plant operations mean more areas to cover, so fuller files.
Computerisation: records are in an ERP, so evidence is partly electronic and needs safeguards against deletion or tampering (para 6.2).
Assessed risk: overhead allocation is high-risk, so more detailed working papers are needed for it.
Methodology and tools: automated queries were used, so the documentation should record the queries and the data obtained from the cost records.
Nature of procedure: each procedure, such as inspection or recomputation, needs its own record of items tested.
Add the people and dates: record who prepared and reviewed each paper, with dates and extent of review.

Answer: The form and content follow the para 6.3 factors: large and complex operations, ERP-based records, high-risk overhead allocation, automated queries as a tool, and the nature of each procedure. Overall the file will be detailed, partly electronic and protected from tampering, with preparers, reviewers and dates recorded.

Example 2

During a cost audit of Kaveri Pumps Ltd, the cost auditor could not perform a procedure required by a Cost Auditing Standard and performed an alternative procedure. Another team member wrote up his working papers only after the fieldwork ended. Comment on the documentation requirements.

Show the solution

Alternative procedure: para 6.11 applies only in exceptional circumstances.
The auditor must document how the alternative procedure achieves the aim of the requirement.
The auditor must also document the reasons for the departure.
Late writing: para 6.14 says documentation prepared after the work is likely to be less accurate than documentation prepared during execution.
Para 6.16 says documentation must be assembled as the audit goes on, and the final file assembled within a reasonable time after the audit.
Para 5.5 and 6.13: the working papers must still name who prepared and reviewed them, with dates.

Answer: The auditor must record how the alternative procedure meets the aim of the requirement and why it was used. The late write-up weakens quality and goes against the requirement to assemble documentation as the audit proceeds. Papers should be prepared on time, with preparer, reviewer and dates recorded.

Exam tips

Write the para 6.3 factors as a numbered list. Examiners look for all five.
In case questions, tie each fact in the scenario to one factor. Do not just list.
Mention preparer, reviewer and dates. This is an easy mark many students miss.
For MCQs, watch for options that claim a fixed format or fixed size for documentation. Those are wrong.
Keep retention points short: no deletion of documentation before the end of its retention period once the final file is assembled.

Practice questions from Cost Audit Documentation, Audit Process and Execution

Form, Content and Extent of Cost Audit Documentation in other exams

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

ACCA Applied SkillsAudit Documentation

Form, Content and Extent of Cost Audit Documentation: frequently asked questions

What does SCA 102 say decides the form and content of cost audit documentation?

Para 6.3 of the Application Guidance says it depends on factors such as the size and complexity of operations, computerisation of cost records, assessed risks of material misstatement of cost, the methodology and tools used, and the nature of the procedure. These are illustrative factors.

What are audit working papers?

Under SCA 102 definitions, they are the documents which record all audit evidence obtained during the audit. They support the work done and show that the audit followed the relevant Cost Auditing Standards.

Can cost audit documentation be kept in electronic form?

Yes. Para 6.2 says it may be in paper or electronic form. For electronic files, special care may be needed to protect against accidental deletion or tampering.

Can the auditor discard papers after the report is issued?

Not freely. Once the final audit file has been assembled, the auditor should not delete or discard documentation of any nature before the end of its retention period.