How to do an ISO 27001 Gap Analysis

How to do ISO 27001 Gap Analysis

ISO 27001 Gap Analysis

An ISO 27001 Gap Analysis assesses your compliance to ISO 27001, the international standard for information security.

To know where you are going it makes sense to know where you are. A gap analysis is a review of how close you are to meeting the standard, the gaps and what you must do to close those gaps.

FREE Training Video

An ISO 27001 Gap Analysis is just an ISO 27001 Internal Audit.

The requirement of the standard and how to do it is covered in ISO 27001 Clause 9.2 Internal Audit Explained.

In this video I show you how to do it.

ISO 27001 Gap Analysis Toolkit

The ISO 27001 Gap Analysis Toolkit is designed by an ISO 27001 Lead Auditor. This approach is auditor verified and certification body approved and gives you:

  • Easy to follow step by step guide – How to Conduct an Internal Audit
  • Management Audit Report
  • Audit Meeting Template
  • Audit 12 Month Planner
  • The ISO27001:2022 ISMS – audit work sheet
  • The ISO27001:2013 ISMS – audit work sheet
  • The ISO27002:2022 Annex A Controls – audit work sheet
  • The ISO27002:2013 Annex A Controls – audit work sheet
ISO 27001 Gap Analysis and Audit Toolkit
ISO 27001 Gap Analysis and Audit Toolkit

How to do an ISO 27001 Gap Analysis

For each of the ISO 27001 Clauses and ISO 27001 controls, read the requirements and analyse if that requirements is already implemented in your organisation.

The implementation will be on a sliding scale from does not exist, to fully implemented.

You can either do it yourself with an ISO 27001 Gap Analysis template or tool, or you can get specialist consulting help.

For a detailed guide on how to do it read: How to do ISO 27001 Internal Audit [+ Templates]

Time needed: 1 day

How to perform an ISO 27001 Gap Analysis

  1. Get a copy of the ISO 27001 standard

    Purchase a copy of the ISO 27001 standard from a reputable source

  2. Download a copy of the ISO 27001 gap analysis tool

    Download a copy of the ISO 27001 gap analysis tool.

  3. Asses your business against the controls

    For each control assess if, and to what extent, your business has implemented the controls

  4. Draw up a plan to close the gaps

    Where your business has not implemented, or only partially implemented, the required controls you should draw up an implementation plan to close the gaps.

  5. Consider specialist help

    Getting a specialist to help you perform the gap analysis brings experience and guidance on what to do next. Consider getting consulting help: Book a Call

ISO 27001 Gap Analysis FAQ

How long does an ISO 27001 gap analysis take?

On average an ISO 27001 gap analysis with a consulting firm will take 5 to 10 days. It actually only takes 2 days for someone that knows what they are doing and how to do it. If you are doing it yourself it can take up to a month.

How much does an ISO 27001 gap analysis cost?

On average an ISO 27001 gap analysis with a consulting firm will cost around £8,000. With High Table it costs £2,500.

Where can I download an ISO 27001 gap analysis template?

You can download an ISO 27001 gap analysis template.

What is an ISO 27001 Gap Analysis Checklist?

It is a list of the required controls that you complete to assess how and if you have implemented the required controls. It includes what you need to do to close the gaps.

What are the benefits of an ISO 27001 Gap Analysis?

The benefits of an ISO 27001 Gap Analysis are that it allows you to see how close you are currently to meeting the standard and how much work you must do to close any gaps. It will then allow you to plan the controls implementation and plan and schedule your certification audit. There is no point in booking the ISO 27001 certification audit if you have not implemented the required controls to the required level.

Does an IS27001 Gap Analysis cover GDPR?

No, not directly. It does cover principle 6 maintain adequate security but GDPR and Data Protection are much wider than information security.

ISO 27001 Templates

Get everything you need to ISO 27001, including the gap analysis toolkit, templates and tutorials in the ISO 27001 Toolkit.

ISO 27001 Gap Analysis Templates - ISO 27001 Toolkit- How to do ISO 27001 Gap Analysis
ISO 27001 Toolkit- Business Edition

About the author

Stuart Barker
🎓 MSc Security 🛡️ Lead Auditor 30+ Years Exp 🏢 Ex-GE Leader

Stuart Barker

ISO 27001 Ninja

Stuart Barker is a veteran practitioner with over 30 years of experience in systems security and risk management. Holding an MSc in Software and Systems Security, he combines academic rigor with extensive operational experience, including a decade leading Data Governance for General Electric (GE).

As a qualified ISO 27001 Lead Auditor, Stuart possesses distinct insight into the specific evidence standards required by certification bodies. His toolkits represent an auditor-verified methodology designed to minimise operational friction while guaranteeing compliance.

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