Assurance Engagement
1. Engagement in which a practitioner expresses a conclusion or opinion about the
outcome of the evaluation or measurement of a subject matter against criteria.
2. Enhance the degree of confidence of the intended users other than the responsible
party.
3. The outcome of the evaluation or measurement of a subject matter is the
information result from applying the criteria.
Example:
Outcome: Recognition, measurement, disclosure, presentation
Subject Matter: Financial position, financial performance, cash flow
Criteria: HKFRS, IFRS, Hong Kong Company Ordinance
4. Express opinion in the form of written report.
Purpose
1. Express a conclusion that provides an intended user with a level of assurance about
the subject matter.
2. Enhance credibility of information about a subject matter by evaluating whether the
subject matter conforms in all material aspects with suitable criteria.
3. Improve likelihood that information will meet the needs of an intended user.
4. Assists decision makers to make more informed, and presumably better, decisions.
5. Reduce information risks.
5 elements of assurance engagement
1. A three party relationship involving practitioner (auditor), a responsible part
(client) and intended users (users of financial statements)
2. Appropriate subject matter (Financial statement); against which assurance is
required by the intended users
3. Suitable criteria; which will be used by the practitioner to assess the subject
matter, include HKFRS, IFRS, Companies Ordinance, Accounting Concept and
Principles such as Relevance, Reliability, understandability, Neutrality,
Completeness etc.
4. Sufficient (Quantity) and appropriate (Relevant) evidence; based on which
practitioner will express his opinion regarding subject matter
5. Expression of an opinion; which will be done by the practitioner through written
report
APPENDIX 1
Example of an audit engagement letter
This form of letter has been drafted to apply to limited company clients which are incorporated in
Hong Kong under the Companies Ordinance. It is not necessarily comprehensive or appropriate to be
used in relation to every entity, and it must be tailored to specific circumstances - for example to the
special reporting requirement of regulated entities.
To the directors of _______________________________:
The purpose of this letter is to set out the basis on which we (are to)* act as auditors of the company
(and its subsidiaries)* and the respective areas of responsibility of the directors and of ourselves.
Responsibilities of directors and auditors
1.1 As directors of the above company, you are responsible for ensuring that the company maintains
proper books of account and for preparing financial statements which give a true and fair view
(reasonable assurance) and have been prepared in accordance with the Companies Ordinance.
You are also responsible for making available to us, as and when required, all the company's books
of account and all other relevant records and related information, including minutes of all
management and shareholders' meetings.
1.2 We have a statutory responsibility (reasonable assurance: statutory audit) to report to the
members whether in our opinion the financial statements give a true and fair view and whether
they have been properly prepared in accordance with the Companies Ordinance. In arriving at our
opinion, we are required to consider the following matters, and to report on any in respect of which
we are not satisfied:
a.
whether proper books of account have been kept by the company and proper returns adequate for
our audit have been received from branches not visited by us;
b.
whether the company's balance sheet and profit and loss account are in agreement with the books
of account and returns; and
c.
whether we have obtained all the information and explanations which we consider necessary
(reasonable assurance) for the purposes of our audit.
In addition, there are certain other matters which, according to the circumstances, may need to be
dealt with in our report. For example, where the financial statements do not give details of
directors' remuneration or of loans to officers, the Companies Ordinance requires us to disclose
such matters in our report.
1.3 We have a professional responsibility to report if the financial statements do not comply in any
material respect (reasonable assurance: conform in all material respects) with applicable
accounting standards, unless in our opinion the non-compliance is justified in the circumstances. In
determining whether or not the departure is justified, we consider:
a.
whether the departure is required in order for the financial statements to give a true and fair view;
and
b.
whether adequate disclosure has been made concerning the departure.
Scope of audit
2.1 Our audit will be conducted in accordance with Statements of Auditing Standards issued by the
Hong Kong Institute of Certified Public Accountants, and will include such tests of transactions and
of the existence, ownership and valuation of assets and liabilities as we consider necessary. We
shall obtain an understanding of the accounting and internal control systems in order to assess their
adequacy as a basis for the preparation of the financial statements and to establish whether proper
books of account have been maintained by the company. We shall expect to obtain such appropriate
evidence as we consider sufficient to enable us to draw reasonable conclusions therefrom.
2.2 The nature and extent of our procedures will vary according to our assessment of the company's
accounting system and, where we wish to place reliance on it, the internal control system
(reasonable assurance: audit evidence), and may cover any aspect of the business's operations
that we consider appropriate. Our audit is not designed to identify all significant weaknesses in the
company's systems but, if such weaknesses come to our notice during the course of our audit which
we think should be brought to your attention, we shall report them to you. Any such report may not
be provided to third parties without our prior written consent. Such consent will be granted only on
the basis that such reports are not prepared with the interests of anyone other than the company in
mind and that we accept no duty or responsibility to any other party as concerns the reports.
2.3 As part of our normal audit procedures, we may request you to provide written confirmation of
certain oral representations which we have received from you during the course of the audit on
matters having a material effect on the financial statements. In connection with representations and
the supply of information to us generally, we draw your attention to section 134 of the Companies
Ordinance under which it is an offence for an officer of the company to mislead the auditors.
2.4 In order to assist us with the examination of your financial statements, we shall request sight of all
documents or statements, including the chairman's statement, operating and financial review and
the directors' report, which are due to be issued with the financial statements. We are also entitled
to attend all general meetings of the company and to receive notice of all such meetings.
2.5 The responsibility for safeguarding the assets of the company and for the prevention and detection
of fraud, error and non-compliance with law or regulations rests with yourselves. However, we
shall endeavour to plan our audit so that we have a reasonable expectation of detecting material
misstatements in the financial statements or books of account (including those resulting from fraud,
error or non-compliance with law or regulations), but our examination should not be relied upon to
disclose all such material misstatements or frauds, errors or instances of non-compliance as may
exist.
2.6 (Where appropriate - Note) We shall not be treated as having notice, for the purposes of our audit
responsibilities, of information provided to members of our firm other than those engaged on the
audit (for example information provided in connection with accounting, taxation and other
services).
2.7 Once we have issued our report we have no further direct responsibility in relation to the financial
statements for that period. However, we expect that you will inform us of any material event
occurring between the date of our report and that of the Annual General Meeting which may affect
the financial statements.
(Group accounts
3. As auditors of the holding company we are required to report, in similar terms to those outlined in
paragraph 1.2 above, on the group accounts, which comprise the financial statements of the holding
company and its subsidiaries. In order to express an opinion on group accounts which include the
financial information of subsidiaries, joint ventures or associated companies of which we are not the
auditors, it will be necessary for us to communicate directly with the other auditors concerned to
satisfy ourselves that:
a.
so far as is practicable, there is uniformity within the group in the application of accounting
policies;
b.
the group accounts give the information required by the Companies Ordinance, applicable
accounting standards and any other legislation or non-statutory requirements affecting the
presentation of financial statements; and
c.
all material aspects of the group accounts have been subjected to an audit examination, the nature
and extent of which is adequate and reasonable, in our view, for the purpose of forming an
opinion on the group accounts.)*
(Other services
4. You have requested that we provide other services in respect of ...... The terms under which we
provide these other services are dealt with in a separate letter.)*
Fees
5. Our fees are computed on the basis of the time spent on your affairs by the partners and our staff and
on the levels of skill and responsibility involved plus out-of-pocket expenses. Unless otherwise agreed,
our fees will be billed at appropriate intervals during the course of the audit and will be due on
presentation.
Agreement of terms
6.1 Once it has been agreed, this letter will remain effective, from one audit appointment to another,
until it is replaced. We shall be grateful if you could confirm in writing your agreement to these
terms by signing and returning the enclosed copy of this letter, or let us know if they are not in
accordance with your understanding of our terms of engagement.
(6.2 Since the terms of our engagement as auditors of the subsidiaries listed in the attached appendix
are the same, we will not send separate letters to the board of directors of each subsidiary. We
would therefore be grateful if you would forward copies of this letter to the boards of directors of
each such subsidiary and confirm that these boards have also agreed and confirmed their
acceptance of this letter.)*
Yours faithfully,
ABC & Co.
Certified Public Accountants (Practising) [or Certified Public Accountants]
Date
We agree to the terms of this letter.
(Signed)
.................................
Director, for and on behalf of the board of _____________________________
Date
* Delete
where not applicable.
Note
When accounting, taxation or other services are undertaken on behalf of an audit client, information
may be provided to members of the audit firm other than those engaged on the audit. In such cases, it
may be appropriate for the audit engagement letter to include this or a similar paragraph to indicate that
the auditors are not to be treated as having notice, for the purposes of their audit responsibilities, of
such information, to make it clear that a company would not be absolved from informing the auditors
directly of a material matter.
Reasonable assurance
Definition:

The practitioner gathers sufficient appropriate evidence to reduce the audit risk

‘Sufficient’ refers to the quantity of audit evidence (for transaction or accounts
balance, internal control, financial statement) collected would not be too
limited because the financial statements do in fact comply with the suitable
criteria in all material respects.

‘Appropriate’ refers to the quality of evidence.

A report in positive word. (Financial statement to give a true and fair view)

The risk of expression inappropriate conclusion reduce to acceptable low level.

According to the paragraph 17 of PCAOB Auditing Standard No.2,
Management’s assessment of the effectiveness of internal control over financial
reporting is expressed at the level of reasonable assurance.

A high level of assurance, but not absolute assurance.

An audit done in accordance with auditing standards may fail to detect a material
misstatement in a client’s financial statements.

Example: An statutory audit
Limited level assurance engagement
1. Moderate level of assurance
2. Negative assurance (free of material misstatement)
3. The plausible subject matter
4. Negative word (opinion, Nothing has to come his attention)
5. Moderate level
6. Limited level
7. Nothing has to come his attention
8. The risk of expression inappropriate to conclusion reduce to acceptable low level
No level of assurance
1. The lack of precision often associated with the subject matter (A small and
undetected misstatement can still make the financial statement true and fair.)
2. The nature, timing and extent of audit procedures (It may produce different results
to a particular setting.)
3. The fact that evidence is usually persuasive rather than conclusive ( from the point
of view to auditor)
4. The fact that evidence is gathered on a test basis ( only test some samples of the
population)
5. The completeness problem (the risk that items omitted from the population in the
first place.
Here, the professional accountant is giving no assurance at all for the engagement.
1. Agreed-upon procedures(HKSRS 4400) –determine procedures and provide a
report of factual findings
2. Compilation (Revised) - collected, classified and summarized the financial or
other information by the accountant with professional competence and due care.
3. Preparation of tax returns
4. Management consulting and advisory services