Framework Comparison

SOC 2 vs ISO 27001: Which Do You Need?

SOC 2 is a US attestation report from a CPA firm — flexible, lower-cost, and the default ask from American enterprise buyers. ISO 27001 is an internationally recognized certification with a fixed audit and renewal cycle — pricier upfront but the global standard, especially in Europe. Pick based on where your customers are.

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SOC 2 vs ISO 27001 at a Glance

A side-by-side look at how the two frameworks differ on purpose, cost, process, and recognition.

	SOC 2	ISO 27001
Type	Attestation report (AICPA)	Certification (ISO/IEC)
Recognition	Strong in the US	Global, strong in EU/international
Typical cost	$5,000–$60,000 (from $2,500 on AuditNex)	$14,000–$50,000 (Stage 1+2)
Output	A report you share under NDA	A public certificate
Renewal	Annual report	3-yr cert + annual surveillance
Best for	US B2B SaaS selling to enterprises	Selling internationally / in Europe

Which Do You Need?

Choose SOC 2 if…

✓Your customers are mostly US enterprises
✓You want a faster, lower-cost first milestone
✓A buyer specifically asked for a SOC 2 report
✓You prefer a flexible, scope-it-yourself approach

Choose ISO 27001 if…

✓You sell internationally, especially in the EU
✓Buyers ask for a recognized certificate, not a report
✓You want a globally portable credential
✓You're building a formal, auditable ISMS

How Much They Overlap

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The two frameworks share most of their underlying security controls — access management, encryption, monitoring, vendor risk, and incident response all map closely. Companies that already hold one can usually achieve the other for substantially less than the first, since most evidence is reused. Many growing SaaS companies end up holding both: SOC 2 for US deals and ISO 27001 for international ones.

SOC 2 vs ISO 27001 FAQ

What is the difference between SOC 2 and ISO 27001?

SOC 2 is an attestation: a licensed CPA firm examines your controls and issues a report you share with customers under NDA. ISO 27001 is a certification: an accredited body audits your Information Security Management System (ISMS) and issues a public certificate. SOC 2 is US-centric and flexible; ISO 27001 is internationally recognized and follows a fixed three-year cycle.

Is SOC 2 or ISO 27001 cheaper?

SOC 2 usually has a lower entry point — audits commonly run $5,000–$60,000 and start at $2,500 on the AuditNex network, especially for a Type I report. ISO 27001's Stage 1 and Stage 2 audit runs about $14,000–$50,000 for SMBs, plus annual surveillance audits, so its total cost over three years is typically higher.

Can I get both SOC 2 and ISO 27001?

Yes, and many companies do. Because the underlying controls overlap heavily, achieving the second framework usually costs far less than the first — most of your evidence and controls carry over. SOC 2 covers US enterprise deals while ISO 27001 covers international and EU customers.

Which do enterprise customers prefer?

It depends on geography. US buyers most often ask for a SOC 2 Type II report. European and international buyers typically expect an ISO 27001 certificate. If you sell in both markets, you'll likely need both over time.

Not Sure Which One You Need?

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