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Written by Alan Parker, certified Lead Auditor

Published 14 March 2026 · Last reviewed 18 October 2026

ISO 27001 ISMS Complexity & Cost Calculator

Not sure how much, how long, or how complex your ISO 27001 implementation will be? Find out here with my rapid calculator tool.

The calculator gives you an estimate. For the real figures behind it, see my ISO 27001 certification cost guide, built from quotes issued to clients by UKAS and non-accredited bodies.