← Back to Blog Audit Management

IAF MD5 Explained: A Practical Guide to Audit Manday Calculation for Certification Bodies

ISO Application Editorial · March 2026 · 12 min read

IAF MD5:2019 is the document that governs how certification bodies calculate the time required for an audit. This comprehensive guide breaks down every element — from FTE employee bands to multi-site sampling — and explains how to apply them correctly.

Manage ISO certifications the right way

ISO Application gives your CB the platform it needs — built for ISO 17021-1 compliance from day one.

Start Free Trial → Request Demo
More articles: ISO 42001:2024 →Why ISO Certification Bodies Are the Last Industry to Digitise →