ISO 9001:2026 transition deadline calculator
Two dates matter in any transition: the day your old certificate stops being valid, and the last day you can realistically get an audit booked before it. Most organisations only plan for the first one. Answer two questions below and you will have both.
It is printed on the certificate, usually three years from the last recertification audit.
Your transition deadline
30 September 2029
ISO 9001:2015 certificates lose validity on this date.
Book your transition audit by
30 March 2029
Certification bodies fill their diaries in the final year of every transition. Aiming at the deadline itself is how organisations lose certification on a scheduling problem rather than a quality one.
Provisional. ISO 9001:2026 is expected to publish in September 2026, and certification bodies anticipate a three-year transition — but the binding transition rules are issued by the IAF when the standard publishes, not before. This calculator uses the anticipated dates and will be updated the week the real ones are confirmed.
What actually changes in 2026
Eight clauses change in substance — climate change in context, quality culture and ethics under leadership, a reworked risk and opportunity clause, a new 6.3 on planning of changes, awareness, terms and definitions, and a new informative Annex A. Everything else carries over.
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Qlause provides interpretive guidance only and is not a substitute for the standard or for advice from your certification body.