ISA 540 (Revised) Implementation


The ISA 540 (Revised) Implementation Working Group is responsible for the implementation of ISA 540 (Revised), Auditing Accounting Estimates and Related Disclosures, with the objectives of:

  • Promoting awareness of the revised standard;
  • Informing and educating users;
  • Opening a dialogue to learn about the experiences of those responsible for adopting and implementing the standard; and
  • Preparing for post-implementation review efforts.
Project Stages



At its June 2018 meeting, the IAASB approved ISA 540 (Revised) and the conforming and consequential amendments to other International Standards. The standard was released in October 2018 and is effective for audits of financial statements for periods beginning on or after December 15, 2019. Early adoption of ISA 540 (Revised) is permitted and encouraged by the IAASB.

For a history of the development of ISA 540 (Revised), visit the ISA 540 (Revised) project history webpage.


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