How long does a federal audit lasts? It depends on the scope of work involved in the federal audit (also known as reviews or engagements). From our experience, the average federal audit lasts between three to nine months. For those working for one of many U.S. Inspector Generals, this time is needed to perform their reviews. Included in this review are the extensive review of documents and various interviews of relevant individuals. However, the length of the audits will also depend on how soon you can provide the federal audits requested documents and the availability of relevant personnel. Also, the complexity, diversion of resources, and priority to another review will determine the length federal auditors are looking at your organization.
The takeaway is that federal audits can last for months. However, the length and time spent by the federal auditors will depend on a variety of factors with the main ones being how soon you provide the requested individuals and documents. The faster they have access to information and individuals, the faster the audit will be completed.