The key SEC principle related to establishing the scope of controls for testing may be stated as follows: "Focus on controls that adequately address the risk of material misstatement." This involves the following steps:
Determine significance and misstatement risk for financial reporting elements (accounts and disclosures) Under the PCAOB AS 5 guidance, the auditor is required to determine whether an account is "significant" or not (i.e., yes or no), based on a series of risk factors related to the likelihood of financial statement error and magnitude (dollar value) of the account. Significant accounts and disclosures are in-scope for assessment, so management typically includes this information in its documentation and generally performs this analysis for review by the auditor. This documentation may be referred to in practice as the "significant account analysis." Accounts with large balances are generally presumed to be significant (i.e., in-scope) and require some type of testing. New under the SEC guidance is the concept of also rating each significant account for "misstatement risk" (low, medium, or high), based on similar factors used to determine significance. The misstatement risk ranking is a key factor used to determine the nature, timing, and extent of evidence to be obtained. As risk increases, the expected sufficiency of testing evidence accumulated for controls related to significant accounts increases (see section below regarding testing & evidence decisions). Both significance and misstatement risk are inherent risk concepts, meaning that conclusions regarding which accounts are in-scope are determined before considering the effectiveness of controls.
Identify financial reporting objectives Objectives help set the context and boundaries in which risk assessment occurs. The
COSO Internal Control-Integrated Framework, a standard of
internal control widely used for SOX compliance, states: "A precondition to risk assessment is the establishment of objectives..." and "Risk assessment is the identification and analysis of relevant risks to achievement of the objectives." The SOX guidance states several hierarchical levels at which risk assessment may occur, such as entity, account, assertion, process, and transaction class. Objectives, risks, and controls may be analyzed at each of these levels. The concept of a top-down risk assessment means considering the higher-levels of the framework first, to filter from consideration as much of the lower-level assessment activity as possible. There are many approaches to top-down risk assessment. Management may explicitly document control objectives, or use texts and other references to ensure their risk statement and control statement documentation is complete. There are two primary levels at which objectives (and also controls) are defined:
entity-level and
assertion level. An example of an
entity-level control objective is: "Employees are aware of the Company's Code of Conduct." The COSO 1992–1994 Framework defines each of the five components of internal control (i.e., Control Environment, Risk Assessment, Information & Communication, Monitoring, and Control Activities). Evaluation suggestions are included at the end of key COSO chapters and in the "Evaluation Tools" volume; these can be modified into objective statements. An example of an
assertion-level control objective is "Revenue is recognized only upon the satisfaction of a performance obligation." Lists of assertion-level control objectives are available in most financial auditing textbooks. Excellent examples are also available in AICPA Statement on Auditing Standards No. 110 (SAS 110) for the inventory process. SAS 106 includes the latest guidance on financial statement assertions. Control objectives may be organized within processes, to help organize the documentation, ownership and TDRA approach. Typical financial processes include expense & accounts payable (purchase to payment), payroll, revenue and accounts receivable (order to cash collection), capital assets, etc. This is how most auditing textbooks organize control objectives. Processes can also be risk-ranked. COSO issued revised guidance in 2013 effective for companies with year-end dates after December 15, 2014. This essentially requires control statements to be referenced to 17 "principles" beneath the five COSO "components." There are approximately 80 "points of focus" that can be evaluated specifically against the controls of the company, to form a conclusion about the 17 principles (i.e., each principle has several relevant points of focus). Most of the principles and points of focus relate to entity-level controls. As of June 2013 the approaches used in practice were in the early stages of development. One approach would be to add the principles and points of focus as criteria within a database and reference each to the relevant controls that address them.
Identify material risks to the achievement of the objectives One definition of risk is anything that can interfere with the achievement of an objective. A risk statement is an expression of "what can go wrong." Under the 2007 guidance (i.e., SEC interpretive guidance and PCAOB AS5), those risks that inherently have a "reasonably possible" likelihood of causing a material error in the account balance or disclosure are the material misstatement risks ("MMR"). Note that this is a slight amendment to the "more than remote" likelihood language of PCAOB AS2, intended to limit the scope to fewer, more critical material risks and related controls. An example of a risk statement corresponding to the above assertion level control objective might be: "The risk that revenue is recognized
before the delivery of products and services." Note that this reads very similarly to the control objective, only stated in the negative. Management develops a listing of MMR, linked to the specific accounts and/or control objectives developed above. MMR may be identified by asking the question: "What can go wrong related to the account, assertion or objective?" MMR may arise within the accounting function (e.g., regarding estimates, judgments, and policy decisions) or the internal and external environment (e.g., corporate departments that feed the accounting department information, economic and stock market variables, etc.) Communication interfaces, changes (people, process or systems), fraud vulnerability, management override of controls, incentive structure, complex transactions, and degree of judgment or human intervention involved in processing are other high-risk topics. In general, management considers questions such as: What is really difficult to get right? What accounting problems have we had in the past? What has changed? Who might be capable or motivated to commit fraud or fraudulent financial reporting? As a high percentage of financial frauds historically have involved the overstatement of revenue, such accounts typically merit additional attention. AICPA Statement on Auditing Standards No. 109 (SAS 109) also provides helpful guidance regarding
financial risk assessment. Under the 2007 guidance, companies are required to perform a fraud risk assessment and assess related controls. This typically involves identifying scenarios in which theft or loss could occur and determining if existing control procedures effectively manage the risk to an acceptable level. The risk that senior management might override important financial controls to manipulate financial reporting is also a key area of focus in the fraud risk assessment. In practice, many companies combine the objective and risk statements when describing MMR. These MMR statements serve as a target, focusing efforts to identify
mitigating controls.
Identify controls that address the material misstatement risks (MMR) For each MMR, management determines which control (or controls) address the risk "sufficiently" and "precisely" (PCAOB AS#5) or "effectively" (SEC Guidance) enough to mitigate it. The word "mitigate" in this context means the control (or controls) reduces the likelihood of material error presented by the MMR to a "remote" probability. This level of assurance is required because a material weakness must be disclosed if there is a "reasonably possible" or "probable" possibility of a material misstatement of a significant account. Even though multiple controls may bear on the risk, only those that address it as defined above are included in the assessment. In practice, these are called the "in-scope" or "key" controls that require testing. The SEC Guidance defines the probability terms as follows, per FAS5
Accounting for Contingent Liabilities: • "Probable: The future event or events are likely to occur." • "Reasonably possible: The chance of the future event or events occurring is more than remote but less than likely." • "Remote: The chance of the future event or events occurring is slight." Judgment is typically the best guide for selecting the most important controls relative to a particular risk for testing. PCAOB AS5 introduces a three-level framework describing entity-level controls at varying levels of precision (direct, monitoring, and indirect.) As a practical matter, control precision by type of control, in order of most precise to least, may be interpreted as: • Transaction-specific (transaction-level) – Authorization or review (or preventive system controls) related to specific, individual transactions; • Transaction summary (transaction-level) – Review of reports listing individual transactions; • Period-end reporting (account-level) – Journal entry review, account reconciliations or detailed account analysis (e.g., utility spending per store); • Management review controls (direct entity level) – Fluctuation analyses of income statement accounts at varying levels of aggregation or monthly reporting package containing summarized financial and operational information; • Monitoring controls (monitoring entity level) - Self-assessment and internal audit reviews to verify controls are designed and implemented effectively; and • Indirect (indirect entity level) - Controls that are not linked to specific transactions, such as the control environment (e.g., tone set by management and hiring practices). It is increasingly difficult to argue that reliance upon controls is reasonable in achieving assertion-level objectives as one travels along this continuum from most precise to least, and as risk increases. A combination of type 3-6 controls above may help reduce the number of type 1 & 2 controls (transaction-level) that require assessment for particular risks, especially in lower-risk, transaction-intensive processes. Under the 2007 guidance, it appears acceptable to place significantly more reliance on the period-end controls (i.e., review of journal entries and account reconciliations) and management review controls than in the past, effectively addressing many of the material misstatement risks and enabling either: a) the elimination of a significant number of transactional controls from the prior-year's scope of testing; or b) reducing related evidence obtained. The number of transaction-level controls may be reduced significantly, particularly for lower-risk accounts. ==Considerations in testing and evidence decisions==