International Auditing and Assurance Standards Board

The International Auditing and Assurance Standards Board (IAASB) sets high-quality international standards for auditing, assurance, and quality management that strengthen public confidence in the global audit and assurance profession.

New! 2025 Edition of the IAASB Handbook Now Available
Layered image of a skyline, laptop and globe outline
ISA 240 (Revised) & ISA 570 (Revised 2024): Fraud and Going Concern Standards
Learn More
Green leaf on a green background with sunlight
International Standard on Sustainability Assurance 5000
Explore Resources
Graphic of light blue lines on darker blue background
Technology Position
Learn more
Abstract circles and lines
The ISA for LCE
Access the Resources
Latest On Our Projects: Read brief project updates following our quarterly meetings
News
MEETINGS
QUICK LINKS
IAASB 2025 handbook covers

2025 Handbook

CURRENT EDITION

For the first time, the 2025 Handbook comprises five volumes to improve the user experience and accommodate new as well as revised standards.