Auditing in specialised industries

This article provides some insight into the matters that need to be considered by auditors when engaged to provide the external audit service to a client operating in a specialised industry. In the Advanced Audit and Assurance exam, question scenarios may be based on audit clients operating in a specialised industry, so candidates need to be aware of the matters which auditors need to consider, especially when planning the audit.

What is a specialised industry?

Perhaps it is easiest to start by explaining that a specialised industry is not necessarily rare or even unusual. Examples of specialised industries include:

  • airline
  • banking and insurance
  • agriculture, and
  • oil extraction.

What makes these industries specialised is that they are likely either to have specific financial reporting standards applicable to them, or to have distinct accounting policies which have been developed to account for specialised transactions and balances which are based on the normally-applied financial reporting standards. For instance, IAS® 41, Agriculture is clearly relevant specifically to the agriculture sector and IFRS®, 7 Financial Instruments: Disclosure will need specific application by companies operating in the banking sector.

Audit considerations


When accepting an audit engagement involving a specialist industry, the audit firm needs to pay close attention to the competence of the audit firm to provide the service. ISQC 1, Quality Control for Firms That Perform Audits and Reviews of Financial Statements, and Other Assurance and Related Services Engagements requires the audit firm to consider whether the firm is competent to perform the engagement and has the capabilities, including time and resources, to do so. This should include consideration of whether the audit firm personnel has knowledge of relevant industries and has experience with relevant regulatory or reporting requirements, or the ability to gain the necessary skills and knowledge effectively.

Larger audit firms are likely to meet the competence requirement for almost any type of industry – they will either already possess necessary skill and competence through having existing clients in the particular industry, or have the resource available to bring in experts and/or provide any necessary staff training. Smaller firms may have to carefully consider their competence to take on an audit client in a specialised industry if they have not previously worked with an audit client in the same industry. However, regardless of size, audit firms may choose to specialise themselves in the audit of clients in a particular market or sector, for example a smaller firm may specialise in the audit of clients in the farming sector, or in not-for-profit organisations, so it should not be assumed that just because an audit firm is small, it would not meet the competence requirement.

The audit firm should also ensure that there is adequate documentation to demonstrate that competence has been considered, and the steps that have been taken to improve competence where necessary, for example through appropriate staff training.

Audit planning

Identification of the risk of material misstatement in a specialised industry should be approached in the same was as in any other audit – by obtaining appropriate understanding of the business and its environment. Assuming that staff have the necessary competence, as discussed above, this should not be problematical.

To assist audit team members assigned to a specialised industry client, the audit firm is likely to have additional resources available. There may be briefing notes or internal technical guidance on how financial reporting standards should be applied within the sector. For example, in the audit of banking sector clients, an audit firm may produce guidance on the specific application of IFRS® Standards relating to the range of financial instruments typically held by banks. Audit staff can then refer to this guidance when performing the audit, particularly when identifying risks of material misstatement.

It is also important to remember that while there may be specific risks of material misstatement relating to the industry-specific balances and transactions, there must also be appropriate consideration of the “normal” balances and transactions. For instance, in the audit of a bank, there will be plenty of risks to consider other than those relating to bank-specific transactions and balances, for example the depreciation of properties, recognition of provisions and impairment of goodwill would all still be relevant. These 'normal' types of risk must not be forgotten, just because the client operates in a specialised industry.

Reliance on experts

Linked to the previous matters, competence, audit planning and the specialised nature of some transactions and balances, the auditor may plan to use an auditor’s expert to obtain audit evidence. This is quite likely in a specialised industry as despite being competent to perform the engagement, the audit firm may not have the necessary specific expertise in some areas. For instance in the audit of a bank, specialists may be brought in to value complex financial instruments.

In this situation, the audit firm must adhere to the requirements and principles of ISA 620, Using the Work of an Auditor’s Expert which deals with matters including the evaluation of the objectivity, competence and capabilities of the auditor’s expert, determining and communicating the scope and objectives of their work, and assessing their findings. It is particularly important that the auditor evaluates the relevance and adequacy of the expert’s findings or conclusions. There is a danger of over-reliance on the expert’s work; the fact that the audit is of a specialised nature does not mean that the auditor can pass all responsibility over to an expert. For instance, the auditor must consider whether the expert’s findings are consistent with the auditor’s understanding of the client and with the conclusions of other audit procedures. Any inconsistencies must be investigated.


The audit of a client in a specialised industry can pose some challenges to the audit firm. However, with proper consideration of competence, and by providing staff with additional support and guidance, these audits should not necessarily be more complex or challenging to plan and perform. Using experts can provide high quality audit evidence in specialist situations, but the auditor must be careful to fully evaluate the findings of the auditor’s expert and not to over-rely on their work. For audit staff, working on this type of engagement can be very rewarding, providing exposure to sometimes unusual businesses. 

Written by a member of the Advanced Audit and Assurance examining team