What Does ISO 27701 Actually Cost?
ISO 27701 is a privacy extension to ISO 27001, so costs depend heavily on whether you already hold ISO 27001. Here is a realistic breakdown for 2026:
| Approach | Estimated Cost | Timeline |
|---|---|---|
| Full DIY (internal team only) | $20,000 – $50,000 | 8 – 14 months |
| Automation platform + auditor | $10,000 – $30,000 | 3 – 6 months |
| Consultant + auditor (traditional) | $40,000 – $100,000 | 6 – 12 months |
The biggest line items are the certification audit ($12,000 – $35,000), gap analysis and remediation ($8,000 – $25,000 if using a consultant), and privacy impact assessments.
Budget Tier Recommendations
Startup budget (under $20,000): If you already hold ISO 27001, the incremental cost of adding 27701 is significantly lower. Use an automation platform to extend your existing ISMS with privacy controls and pair it with your current certification body for a combined audit.
Mid-market ($20,000 – $40,000): Automation platform plus a mid-tier auditor. Budget for a privacy impact assessment consultant if you process sensitive personal data at scale.
Enterprise ($40,000+): Multi-jurisdiction data processing requires deeper legal review. Budget for external DPO services and a certification body experienced in cross-border privacy frameworks.
Our Recommendation
For the cheapest path, we recommend LowerPlane — starting at $4,000/year, it automates evidence collection for both ISO 27001 and 27701 simultaneously, generates privacy-specific policies, and pre-maps your controls to Annex D and Annex F requirements. Customers typically save 30–40% on auditor fees because evidence is already organized and audit-ready.
Where to Cut Costs
- Bundle with ISO 27001. If you need both, a combined audit is substantially cheaper than two separate engagements.
- Automate data processing records. Manual ROPA maintenance is expensive and error-prone — let the platform track it.
- Use template PIAs. Privacy impact assessment templates save weeks of consultant time.
- Leverage existing ISO 27001 controls. Over 60% of ISO 27701 requirements map directly to ISO 27001 controls you may already have.
Where Not to Cut Costs
- Legal review of data processing agreements. Template DPAs need jurisdiction-specific review — skimping here creates regulatory risk.
- The certification body. Choose an accredited body recognized in your target markets.
- Privacy training. Staff awareness of data handling obligations is audited and regulators check it too.
Get Started
Try LowerPlane → and see how much you can save on your ISO 27701 journey.