Single Audit Practice Aids 

    Published July 23, 2013

    The AICPA’s Governmental Audit Quality Center (GAQC) developed a number of practice aids to assist auditors in performing engagements under Office of Management and Budget (OMB) Circular A-133, Audits of States, Local Governments, and Non-Profit Organizations (Circular A-133)—also referred to as single audits. Practice Aids developed by the task forces are described below. These Practice Aids are nonauthoritative and their use is not required. However, they may help you understand and apply certain auditing standards. The GAQC believes that audit quality will be further enhanced by their use. Auditors that already have their own internal guidance in these areas and do not wish to use the GAQC Practice Aids are encouraged to compare them to such internal guidance to ensure that there are not any areas that are lacking or need to be enhanced.


    Schedule of Expenditures of Federal Awards (SEFA) Practice Aids

    The GAQC developed three Practice Aids to assist auditors in determining whether the SEFA includes all required elements, is accurate and complete, and that the auditor’s procedures relating to the SEFA are appropriately documented. The Practice Aids have been updated and expanded to reflect the issuance of the Clarity Standards, including AU-C section 725, Supplementary Information in Relation to the Financial Statements as a Whole. 

    Further, because preparation of the SEFA is an auditee responsibility, the GAQC also developed two Practice Aids intended to assist auditees in their important role of ensuring that the SEFA includes all required elements and is prepared accurately and completely. Note that auditors should refer to Chapter 7, Schedule of Expenditures of Federal Awards, of the AICPA Audit Guide, Government Auditing Standards and Circular A-133 Audits, for a description of the various requirements relating to the SEFA for both the auditor and the auditee, as well as for additional guidance. 

    The three Practice Aids developed as auditor tools by the GAQC are available in PDF (available to the public) or Word (available to GAQC members only).  The Auditor Practice aids are as follows:

    • Audit Plan Supplement for the SEFA in Accordance with OMB Circular A-133: This Practice Aid provides the auditor with an illustrative audit plan as a tool to document the procedures performed for purposes of providing the in relation to opinion on the SEFA, as well as the additional procedures to determine the accuracy and completeness of the information included in the SEFA. 
    • Disclosure Checklist: SEFA in accordance with OMB Circular A-133: This Practice Aid is intended to assist the auditor in determining whether the auditee’s SEFA includes all of the elements required by Circular A-133.
    • Auditor's Report Checklist of the In Relation To Opinion on the SEFA: This Practice Aid is intended to assist the auditor in determining whether all the required report elements, as provided in AU-C section 725, are included in the in relation to opinion on the SEFA.

    The two Practice Aids developed as auditee tools by the GAQC are available in PDF or Word (both versions available to the public. The Auditee Practice Aids are as follows:  

    • Worksheet for Identifying Federal Program Information: This Practice Aid is intended to assist the auditee in accumulating and documenting important information for each of its federal awards. This information could be provided to the auditor at the beginning of the single audit. 
    • Auditee Disclosure Checklist for the SEFA: This Practice Aid is intended to assist auditees with preparing a SEFA that includes all of the elements required by Circular A-133.  

    Please also note that the GAQC has posted report illustrations, which provide examples for auditor reporting under Circular A-133. The illustrations include revisions to the schedule of expenditures of federal awards reporting in order to comply with AU-C section 725. The report illustrations are available to the public.

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    Internal Controls and Compliance Practice Aids

    The GAQC Internal Control and Compliance Practice Aids are temporarily unavailable.  They were originally developed based on Part 6 of the Office of Management and Budget (OMB) Compliance Supplement which was removed by OMB from the 2015 Supplement as it needed revisions for updated internal control guidance, as well as for the OMB's Uniform Administrative Requirements, Cost Principles, and Audit Requirements for Federal Awards at 2 CFR 200.   The three Practice Aids (1) Major Program Risk Matrix; (2) Controls Overview Documents (Narrative and Checklist): and (3) Dual Purpose Testwork, will be available on this page after an update to Part 6 is available and the GAQC team can make the related updates to the GAQC Practice Aids.  The GAQC will send a GAQC Alert to members once the Practice Aids are re-posted.  If you need access to the old Practice Aids based on OMB Circular A-133, please send a request to the GAQC at gaqc@aicpa.org.

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    Sampling in a Single Audit Environment

    Chapter 11, "Audit Sampling Considerations" of the the AICPA Audit Guide, Government Auditing Standards and Circular A-133 Audits (GAS A-133 Guide) addresses sampling in a single audit environment.   This Chapter does not set new requirements but rather provides recommendations on the application of the existing auditing standards, including AU-C section 530, Audit Sampling, to this topic area. Before its issuance, the Chapter was cleared by the AICPA Auditing Standards Board and federal agency representatives. Tools for the auditor related to sampling in a single audit include:

    • GAS A-133 Guide. The Chapter is available to subscribers to the AICPA online publication, AICPA RESOURCE–ONLINE, and other similar subscription services and in the print editions (since 2009) of the GAS A-133 Guide.  You may obtain the Guide through the AICPA store. More information on subscriptions to AICPA RESOURCE–ONLINE can be obtained through the AICPA store
    • Executive Summary of the GAS A-133 Guide Sampling Chapter. The GAQC has also prepared an executive summary of the Chapter to help practitioners better understand what the Chapter encompasses. This summary should not be used as a substitute for the Chapter. The Chapter provides much more context and detail for sampling considerations. Therefore, practitioners are highly encouraged to obtain the GAS A-133 Guide to ensure an appropriate understanding of the requirements and guidance for sampling in a single audit environment.   
    • AU-C section 530.  Auditors performing sampling in a single audit environment should also refer to the underlying auditing standard on sampling, AU-C section 530.
    • Sampling Guide.  In addition to the Chapter, auditors may also want to refer to the AICPA Audit Guide Audit Sampling (Sampling Guide), which serves as the foundation for much of the guidance in the new GAS A-133 Guide Chapter.  The Sampling Guide is also an interpretive publication and assists practitioners in the application of AU-C section 530. The Sampling Guide can be ordered through the AICPA store. 

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