Presentation on theme: "13 - 1 Chapter 13 Overall Audit Plan and Audit Program."— Presentation transcript:
Chapter 13 Overall Audit Plan and Audit Program
Presentation Outline I.Application of Audit Testing II.Selecting Tests to Perform III.Design of the Audit Program IV.A Summary of the Audit Process
I. Application of Audit Testing A.Tests of Controls B.Testing for Monetary Misstatement C. Reduction of Risk D.Audit Assurance at Different Levels of Internal Control Effectiveness E.Simultaneous Testing of Controls and Substantive Testing of Transactions F.Timing of Audit Testing
A. Tests of Controls Audit procedures to test the operating effectiveness of control policies and procedures in support of a reduced assessed control risk. Some examples include: Matching of vendor invoices against a purchase order and receiving report before approving invoice for payment. Examination of employee time cards for approval of overtime.
B. Testing for Monetary Misstatement Substantive Tests of Transactions Testing for monetary misstatements to determine if the following 6 transaction- related audit objectives have been met: Existence Completeness Accuracy Classification Timing Posting and Summarization Tests of Details of Balances Testing for monetary misstatements to determine if the following 9 balance-related audit objectives have been met: Existence Completeness Accuracy Classification Cutoff Detail tie-in Realizable value Rights and obligations Presentation and disclosure
C. Reduction of Risk Control Risk Procedures to gain an understanding of internal control Tests of controls Once the auditor obtains an initial understanding of controls, tests of controls must be performed to obtain evidence regarding the effectiveness of controls. Stronger controls will allow the auditor to assess control risk below the maximum. Detection Risk Substantive tests of transactions Analytical procedures Tests of details of balances The more evidence an auditor collects from the above procedures, the lower the detection risk. Detection risk must be lower when control risk is higher.
D. Audit Assurance at Different Levels of Internal Control Effectiveness Acceptable assurance No assurance INTERNAL CONTROL EFFECTIVENESS Weak controlStrong control Reliance on controls: C 3 – None, C 2 – Some, C 1 – Maximum Audit assurance from control risk assessment and tests of control Audit assurance from substantive tests ACB C3C3 C2C2 C1C1 AUDIT ASSURANCE
E. Simultaneous Testing of Controls and Substantive Testing of Transactions The determination of control risk affects the type of procedures and sample size for the substantive testing of transactions. For purposes of convenience, the testing of controls and substantive testing of transactions will often occur simultaneously. In such situations the auditor will make an assumption about the results of tests of controls. If the testing of controls indicates that internal control is worst than expected, substantive testing of transactions will have to be modified accordingly.
F. Timing of Audit Testing Auditors frequently consider it desirable to perform audit tests prior to year end. Certain procedures may be performed at an interim time (prior to clients year end) : Update depreciation schedules Examine new loan agreements Vouch transactions Analyze changes in clients accounting system Review board of director minutes If strong internal controls exist the auditor may also: Observe physical inventories Confirm account balances
II. Selecting Tests to Perform A.The Cost of Testing B.Appropriate Evidence for Audit Testing C.Risk and Testing in the Audit Process
A. The Cost of Testing Going from the most to least costly, the types of tests are: Tests of details of balances Substantive tests of transactions Tests of controls Procedures to obtain an understanding of internal controls Analytical procedures
B. Appropriate Evidence for Audit Testing Type of Test Procedures for internal control Tests of controls Substantive tests of transactions Analytical procedures Tests of details of balances Physical Examination Confirmation Documentation Observation Type of Evidence Inquiries of the client Reperformance Analytic performance
C. Risk and Testing in the Audit Process Substantive Testing of Transactions In some situations it may be more efficient to assess control risk at a higher level and reduce or eliminate tests of controls. This depends on cost of testing controls versus the additional substantive testing that would result from a higher control risk. Tests of Details of Balances If tolerable misstatement is low, and inherent risk and control risk are high, planned tests of details of balances must be high.
III. Design of the Audit Program A.Tests of Controls and Substantive Tests of Transactions B.Analytical Procedures C.Tests of Details of Balances Most audits design an audit program in the following three parts:
A. Tests of Controls and Substantive Tests of Transactions A four-step approach when the auditor plans to reduce assessed control risk below the maximum: Transaction related audit objectives are applied to the class of transactions being tested, such as sales. Key controls that should reduce control risk for each transaction-related audit objective are identified. For all internal controls used to reduce the initial assessment of control risk below the maximum (key controls), appropriate tests of controls are developed. Design appropriate substantive tests of transactions, considering weaknesses in internal control and expected results of tests of controls (allows for simultaneous tests of controls and substantive testing). Note: If control risk is assessed at 1.0, only substantive tests of transactions will be used in this part of the audit program.
B. Analytical Procedures Analytical procedures may be performed during 3 different stages of the audit: In the planning stage to help the auditor understand the clients business and determine other evidence needed to satisfy acceptable audit risk. During the audit, especially during substantive testing. Near the end of the audit as a final test of reasonableness.
C. Tests of Details of Balances If the results of tests of controls, substantive tests of transactions, and analytical procedures are not consistent with the predictions, tests of details of balances will need to be changed as the audit progresses. Figure 13-6 on page 388 illustrates the testing methodology using Accounts Receivable
Summary of the Audit Process - Phase I (Planning) Accept client and perform initial planning. Understand the clients business and industry. Assess clients business risk. Perform preliminary analytical procedures. Set materiality and assess acceptable audit risk and inherent risk. Understand internal control and assess control risk. Develop overall audit plan and audit program.
Summary of the Audit Process - Phase II (Begin Field Work) Perform tests of controls. Perform substantive tests of transactions. Assess likelihood of misstatements in financial statements. Plan to reduce assessed level of control risk? Yes No From Phase I
Summary of the Audit Process Phase III (End of Fieldwork) Perform analytical procedures. Perform tests of key items. Perform additional tests of details of balances. Likelihood of Misstatement in Financial Statements LowMediumHigh or unknown From Phase II
Summary of the Audit Process Phase IV (Wrap-Up) Review for contingent liabilities. Review for subsequent events. Accumulate final evidence. Evaluate results. Issue audit report. Communicate with audit committee and management. From Phase III