ISO 27001 Certification Cost: The Smart, Essential UK SME Guide
The realistic ISO 27001 certification cost for a UK SME lands between roughly £6,000 and £48,000 in the first year, and almost none of that sits on a single invoice. This guide splits the number into certification body audit fees, external support, tooling and internal staff time, benchmarks each by headcount, explains how audit days are calculated, sets out a realistic six to twelve month timeline from gap analysis to certificate, and lists nine levers that genuinely reduce spend without putting the audit outcome at risk.
