What Does ISO 27001 Actually Cost?
ISO 27001 certification costs depend on company size, scope, and approach. Here is a realistic breakdown for 2026:
| Approach | Estimated Cost | Timeline |
|---|---|---|
| Full DIY (internal team) | $20,000 – $60,000 | 8 – 18 months |
| Automation platform + certification body | $10,000 – $30,000 | 3 – 6 months |
| Consultant + certification body (traditional) | $40,000 – $100,000+ | 6 – 12 months |
The major cost drivers are the certification audit (based on auditor-days, which scale with company size), gap remediation labor, and risk assessment documentation.
Budget Tier Recommendations
Startup budget (under $20,000): Use an automation platform that includes ISO 27001 Annex A control mapping and a Statement of Applicability generator. Choose a smaller accredited certification body — prices vary significantly between bodies.
Mid-market ($20,000 – $50,000): Automation platform plus a Stage 1 readiness review from the certification body. Budget for a risk assessment workshop if your team has not done one before.
Enterprise ($50,000+): Multi-site certifications, integration with existing GRC processes, and a top-tier certification body.
Our Recommendation
For the cheapest path, we recommend LowerPlane — starting at $4,000/year, it automates evidence collection, generates your Statement of Applicability, and pre-maps controls to all 93 Annex A controls in the 2022 revision. Customers typically reduce certification body fees by up to 40% through organized, auditor-ready evidence packages.
Where to Cut Costs
- Limit your scope. Certify a single product or business unit first. Smaller scope means fewer auditor-days and lower fees.
- Use the platform's risk assessment module. Hiring a consultant for risk assessment alone can cost $5,000 – $15,000.
- Combine with SOC 2. Many controls overlap — if you need both, the incremental cost of adding ISO 27001 is much lower.
- Choose a less expensive certification body. Accredited bodies in different regions offer significantly different pricing. Get at least three quotes.
Where Not to Cut Costs
- The risk assessment. ISO 27001 is risk-based. A shallow risk assessment leads to findings during the Stage 2 audit.
- Internal audit. Required by Clause 9.2. Skipping it or doing it poorly means a nonconformity.
- Management review. Clause 9.3 requires documented management review. Make it real, not a checkbox.
Get Started
Try LowerPlane → and see how much you can save on ISO 27001 certification.