The internal auditor and the auditee should agree on the terms of the engagement before commencement. The agreed terms would need to be recorded in an engagement letter.
You need a form of engagement document, but you don't necessarily need customised letters. An engagement brochure meets the requirements of APES 220 Taxation Services and APES 305 Terms of Engagement. You should make sure the client acknowledges receipt.
Audit team reports frequently adhere to the rule of the “Five C's” of data sharing and communication, and a thorough summary in a report will include each of these elements. The “Five C's” are criteria, condition, cause, consequence, and corrective action.
An audit engagement letter is one of the most crucial initial items in the entire audit process reflecting the general terms, responsibilities and the scope of the audit service by the auditor and his or her client. Learn about official guidelines, standards and key elements.
Your designated audit firm will prepare the specific terms of engagement using the appropriate AICPA-issued engagement letter template. It should be noted that there are many terms for audit engagements that are deemed required by the AICPA and therefore unable to be negotiated.