First published in 1976, the Red Book Global Standards are updated regularly to reflect market changes and developments. It is recognised globally as one of the most rigorous sets of standards for valuation and, as such, serves as a key reference for global users and stakeholders. 

We have updated the Red Book Global Standards as part of our commitment to support high standards in valuation delivery worldwide and future-proof practices in the public interest, with the direction of updates informed by extensive feedback from stakeholders.

The changes reflect:

  • Alignment with developments in other relevant global standards and regulations such as the new International Valuation Standards (IVS), published 31 January 2024 and effective 31 January 2025
  • The addition of new content relating to modelling and methods
  • Adaptation to practice and process changes from evolving areas such as technology and Environmental Social and Governance (ESG).

 

A guide to key changes

The accompanying Red Book Global Standards - Basis for conclusions explains the rationale behind updates in the latest version and highlights significant changes to ensure you can quickly identify what you must do differently to remain compliant.

It addresses the main refinements made following the responses received through the public consultation. It has been produced purely to assist the reader and does not form part of the standards.

Also provided is a document comparing the 2022 edition and 2025 edition. This marked-up/red-line version of the Red Book indicates changes to the previous version and is for illustrative purposes only. It should not be used as a substitute for the 2025 edition. Please use the 2025 edition for the most up-to-date information.

Frequently Asked Questions