You started looking at ISO27001. Maybe a perspective asked. Maybe you are expanding into Europe. In any case, you want to know one thing before anything else: how much will this cost?
Every seller will tell you it depends.
This is what actually drives the number.
The two bills you will receive
ISO27001 certification has two distinct cost bouquets that most people confuse.
The audit fee is what you pay the certification body – the accredited company that will inspect your ISMS and stamp your certificate.
The readiness cost is all you do to prepare yourself before the auditor enters: implementing controls, writing policies, training staff, and creating tools.
Most of the "ISO27001 cost" content adds them together and gives you a number.
How much does the audit actually cost?
A Phase 1 and Phase 2 audit from an accredited certification body – Bureau Veritas, BSI, SGS, DNV – will usually be conducted between $8,000 and $20,000 Startup with 10-15 employees.
What does this number do:
- • Employee count. More people = more days of man to evaluate.
- • Site count. Completely remote companies often pay less.
- • Auditor brand. BSI charges a premium, and smaller regional bodies charge a lower fee for the same accreditation.
- • Surveillance audits. Your certificate lasts 3 years. Year 2 and Year 3 annual supervisory audits run $3,000–$6,000 each.
One thing that does not affect the price of the audit: how well prepared you are.
What readiness actually costs
This is the part that hits the budgets.
A consultant-led commitment - where an external firm runs your project ISO27001 from end to end - will cost $20,000 to $60,000. Enterprise-focused firms will quote $80,000+.
If you instead use a compliance platform (Vanta, Drata, platform), the cost of the tool is usually $6,000 to $15,000 per yearBut your team still has to do the real job.
If you do it mainly yourself with a lean platform and one day a week from your CTO: $8,000 to $20,000 total, including the audit.
Honest breakdown for a SaaS company of 20 people doing it right, without cutting the corners:
| Item | Estimated cost |
|---|---|
| Certification audit (Stage 1 + Stage 2) | $10,000–$15,000 |
| Compliance platform (annual) | $6,000–$10,000 |
| Internal time (CTO + team, ~60–80h) | Depends on the daily rate |
| Penetration test (usually required) | $3,000–$8,000 |
| Legal policy review (optional but smart) | $1,500–$3,000 |
| Total, first year | $20,000–$36,000 |
Consultant vs. platform: the real tradeoff
Consultants sell time. Platforms sell tooling.
If you don’t have internal compliance knowledge and don’t have time to build them up, a consultant will take you to the finish line faster.
If you have a technically qualified CTO who can own the project, a platform is almost always the best value. Platforms structure the work, track the evidence, generate the necessary documentation and reduce auditing to a relatively predictable exercise.
The trap: Assuming that paying a consultant means you don’t need a platform or vice versa.Some companies pay for both and end up with duplicate work and two different sets of documentation.
Does ISO 27001 cost more than SOC 2?
About the same, with one key difference:ISO27001 gives you an internationally recognised certificate that never expires until it is discertified, whileSOC2 gives you a point-to-point report valid for 12 months.
If your customers are mainly in Europe,ISO27001 is almost always the best investment.
If you’re not sure, the short version: ask the three potential people who have actually picked up what they want.
For SOC 2 numbers, see what SOC 2 costs.
A practical checklist before you start
Before you commit to a budget, answer the following:
- • Who actually asks for ISO27001?Perspectives called with real offers, or a vague "should we probably have it"?
- • Is a stage 1+2 audit sufficient or is supervisory audit also necessary?
- • Do you have an existing test? If not, add $5,000 to your budget immediately.
- • Will the CTO hold this or do you need a consultant?
- • Reducing the scope (e.g. excluding certain systems) reduces the audit fee.
Getting ISO 27001 certified is achievable in 3–6 months The cost is controllable if you enter with a clear scope and a realistic estimate of the internal time.
Prepare for the platform.
If you're going through ISO 27001, the platform Get your audit-ready team with less than 10 hours Over time, you automatically map the controls and track the evidence in one place.
See how Lucis got ISO 27001 certified with the platform, or talk to us In terms of scope and budget.
Get ISO27001 certification with the platform
Make an appointment to understand how close you are to compliance.
Talk to an expert in compliance with