SOC 2 audits aren't optional if you're handling customer data or serving enterprise clients—they're often a hard requirement to stay in business. The cost and scope depend heavily on your organization size, current controls, and which trust service criteria you need to cover. Understanding what you're actually paying for helps you avoid sticker shock and pick the right auditor.
What SOC 2 Compliance Audits Actually Cost
Expect to spend $15,000 to $50,000+ for a full SOC 2 Type II audit, depending on your complexity. Type I audits (point-in-time) typically run $10,000–$25,000 and take 2–4 weeks. Type II audits, which examine controls over a 6–12 month period, are significantly more expensive because auditors need longer to gather evidence.
Small SaaS startups with minimal infrastructure might hit the lower end ($15,000–$25,000). Mid-market companies with multiple systems, distributed teams, or hybrid cloud setups typically pay $30,000–$50,000. Enterprises with complex global operations, regulated subsidiaries, or multiple data centers can exceed $75,000.
Geography and auditor choice matter too. Big Four accounting firms charge premium rates; smaller regional audit firms or specialized compliance consultancies often undercut them by 20–40% while delivering equally credible results.
What's Included in a Standard SOC 2 Audit
A typical SOC 2 engagement covers several defined phases:
- Planning & scoping – auditor interviews stakeholders, maps your systems, and defines which trust service criteria apply (Security, Availability, Processing Integrity, Confidentiality, Privacy)
- Control documentation – you submit policies, runbooks, org charts, and evidence (logs, screenshots, certifications) proving controls exist
- Testing phase – auditor samples transactions, reviews configurations, interviews staff, and verifies controls actually work
- Report generation – final SOC 2 report delivered, typically 40–100+ pages with detailed findings and any remediation items
- Remediation support – some auditors include limited post-audit advice; others charge separately
Most auditors do not include remediation work, infrastructure changes, or ongoing compliance monitoring in base pricing. If your controls fail testing, you'll need to fix them and retest—adding cost and timeline.
Hourly vs. Fixed-Fee Pricing Models
Fixed-fee audits ($20,000–$45,000) are common for smaller organizations. You know the total cost upfront, but scope must be clearly defined. Hidden complexity (undocumented systems, weak starting controls) can lead to scope creep and change orders.
Time-and-materials pricing ($150–$400/hour depending on auditor seniority and location) gives flexibility but introduces budget uncertainty. This model works if your organization is still defining what should be audited or if controls are immature.
Subscription or SaaS audit packages ($5,000–$15,000 annually) exist for very small companies or pre-audit readiness engagements, though these usually don't produce a final SOC 2 report—they're preparation tools.
Timeline Expectations and Hidden Costs
Plan 12–16 weeks for a full Type II audit from kickoff to final report. The bulk of that time is the observation period (you need 6+ months of control evidence). If your controls aren't documented, add 4–8 weeks for setup.
Budget separately for:
- Remediation work – if controls fail, you'll hire consultants or engineers to fix them ($5,000–$25,000 typical)
- Tool costs – access to logging/monitoring platforms, identity management systems, or vulnerability scanners that auditors require
- Internal labor – your team spends 100–200 hours gathering evidence, responding to auditor requests
- Re-audit or Type II transition – converting from Type I to Type II next year costs 20–30% less than the initial audit but still $8,000–$20,000
How to Compare Auditor Quotes
When you receive proposals, ensure each covers the same scope:
- Which trust service criteria are in scope?
- Is the observation period 6, 9, or 12 months?
- Does the fee include remediation calls, or only the audit itself?
- What happens if testing uncovers control gaps—is re-testing included?
- Is the final report suitable for your specific customer base (some enterprises demand Big Four names)?
Mercoly helps you compare and find trusted IT Compliance & Audit providers in one place, making it easier to vet multiple auditors and their specific offerings side by side.
Frequently Asked Questions
Q: Can I get a SOC 2 audit without hiring external auditors? No—SOC 2 reports must be issued by a third-party Certified Public Accountant (CPA) firm or qualified auditor. Internal self-assessment isn't recognized as a SOC 2 report, though it's a smart first step.
Q: How often do I need to repeat a SOC 2 audit? Type II reports are valid for one year, so annual audits are standard. Many companies run continuous or rolling audits to maintain continuous compliance.
Q: Will a SOC 2 audit catch all my security problems? SOC 2 audits assess controls against specific criteria but aren't penetration tests or full security audits. You may need separate vulnerability assessments or security reviews alongside SOC 2 to address technical risks.
Start gathering your system inventory and control documentation now—it's the fastest way to accelerate your audit timeline and reduce unexpected costs.