SOC 2, ISO 27001, or HIPAA — Which Compliance Framework Should You Start With?
Published September 13, 2026 · 9 min read
You have a compliance deadline. Maybe a prospect sent a security questionnaire. Maybe your biggest customer's procurement team asked for a SOC 2 report. Maybe a healthcare system said “we need to see HIPAA documentation before this pilot moves forward.”
The question everyone asks at this point is: which framework should we do first?
The answer is not which framework is “best.” It is which framework matches the specific requirement sitting in front of you right now.
The Real Question Is Not “Which Framework” — It Is “Who Is Asking”
If you are starting from zero, the framework you pick should be driven by one thing: the external requirement that triggered this work. Here is how to map it.
SOC 2: A US Customer or Prospect Wants Proof of Security Controls
If an enterprise buyer, a procurement team, or a vendor risk questionnaire is asking for evidence of your security program, SOC 2 is the right answer for most US SaaS companies. It is an attestation — a CPA firm examines your controls and issues a report that your customers can review. SOC 2 is widely recognized, auditor-validated, and the scope is flexible: you define the systems and trust service criteria in scope, rather than adopting a fixed control set.
SOC 2 comes in two types:
- Type I evaluates the design of your controls at a single point in time. This is the fastest path to a credible compliance artifact from a standing start.
- Type II evaluates both design and operating effectiveness over an observation period, typically 3 to 12 months; three months is common for a first report. This is what most enterprise buyers ultimately want, but a Type I report gives you something real to hand over while your observation window runs.
If you are a seed-to-Series-B SaaS company with a US customer base, SOC 2 is almost certainly your first framework. It directly unblocks deals.
Related reading: What Is SOC 2 Compliance? A Startup Guide and Your First SOC 2 Audit — What to Do in the First 30 Days
ISO 27001: Enterprise or International Buyers Want a Globally Recognized Standard
If your buyers are in the EU, Asia-Pacific, or a global enterprise with an international supply chain, they are more likely to ask for ISO 27001 certification. ISO 27001 is the international standard for information security management systems (ISMS). Unlike SOC 2's attestation model, ISO 27001 produces a certificate issued by an accredited certification body — a yes/no credential that is easier for non-technical procurement teams to evaluate.
ISO 27001 is more prescriptive than SOC 2. You implement a complete ISMS, conduct a formal risk assessment, and apply controls from Annex A (93 controls in the 2022 revision). The certificate is valid for three years with annual surveillance audits.
Two things to know if you are weighing ISO 27001 against SOC 2:
- The control overlap is substantial — most of what you write for one framework serves the other, and the difference is which standard you cite in it. If you build your policies and controls framework-agnostically from the start, the second framework costs significantly less than the first. We wrote about this in SOC 2 vs ISO 27001: Same Policy, Different Citations.
- The 2022 revision is now the standard. The ISO 27001:2013 transition period ended 31 October 2025. New certifications use the 2022 standard, which reorganized Annex A into four themes (organizational, people, physical, technological) and added 11 new controls. See our ISO 27001 Annex A Controls Guide for the full breakdown.
HIPAA: You Handle Protected Health Information
HIPAA is not a framework you choose — it applies to you. If your software stores, processes, or transmits protected health information (PHI), HIPAA's Security Rule, Privacy Rule, and Breach Notification Rule apply whether you pursue formal compliance or not. There is no optional “HIPAA certification” issued by an external body; what healthcare organizations ask for is evidence that you comply: a risk assessment, documented policies, a Business Associate Agreement (BAA), and technical safeguards.
HIPAA applies if you are a covered entity (healthcare provider, health plan, healthcare clearinghouse) or a business associate — any company that handles PHI on behalf of a covered entity. If a hospital or health system is your customer, you are almost certainly a business associate.
HIPAA adds access controls and audit logging as required standards, plus encryption of PHI at rest and in transit and workforce training as addressable ones — meaning you implement them or document a defensible alternative. In practice, encrypt.
What If the Answer Is “More Than One”?
Sometimes it is. A US SaaS company selling to both healthcare and enterprise customers might need SOC 2 and HIPAA. A company expanding into European markets might need SOC 2 now and ISO 27001 within a year.
This is common, and it is not as painful as it sounds if you plan for it. The key is to build your security program once and map it to multiple frameworks, rather than building separate programs for each.
Decision Guide: Which Framework Comes First?
| Your situation | Start with | Why |
|---|---|---|
| US SaaS, enterprise buyers asking for a security report | SOC 2 Type I | Fastest path to a credible artifact; unblocks deals directly |
| Selling to EU or global enterprise procurement | ISO 27001 | The internationally recognized credential; procurement teams check for the certificate |
| Handling protected health information (PHI) | HIPAA | Not optional — you are already subject to it |
| US SaaS + healthcare customers | HIPAA first, then SOC 2 | HIPAA is a legal obligation; SOC 2 unblocks the non-healthcare pipeline |
| Planning for multiple frameworks long-term | SOC 2 Type I, built framework-agnostically | Fastest initial artifact with the highest control reuse |
If no external requirement is forcing your hand, SOC 2 Type I is the default starting point for a US SaaS startup. It is the fastest to complete, the most commonly requested by buyers, and the control work transfers to ISO 27001 when you need it.
The Universal First Step: Your Gap Analysis
Regardless of which framework you pick, the work starts in the same place. Before you touch a policy template or talk to an auditor, answer three questions:
- What data do you handle? Customer data, employee data, financial records, PHI — list everything. If you manage vendors who also access that data, that is part of the picture too. See Vendor Risk Assessments for Startups for how to tier and evaluate that exposure.
- Where does it live? Cloud provider, database, SaaS tools, local machines, backups. Map the actual data flow, not the intended one.
- Who has access? Every person, service account, and third-party integration that can reach sensitive data. Start with admin access and work outward.
That inventory is your gap analysis. It is the foundation every framework builds on — SOC 2 calls it scoping, ISO 27001 calls it the Statement of Applicability, and HIPAA calls it a risk assessment. The exercise is fundamentally the same: understand what you have, identify what is missing, and close the gaps with documented controls and evidence.
From there, the path is policy documentation and evidence collection. Write down what you do (policies), prove you do it (evidence), and have someone qualified confirm it (auditor or certification body).
What a Good First 90 Days Looks Like
For most startups picking up their first framework, here is a realistic timeline:
Weeks 1–2: Complete the data inventory and gap analysis above. Identify your biggest gaps — usually access management, logging, and incident response.
Weeks 3–6: Write your core policies. For SOC 2, focus on the trust service categories you have scoped (Security is required; Availability, Processing Integrity, Confidentiality, and Privacy are optional). For ISO 27001, start with the ISMS scope, risk assessment methodology, and Statement of Applicability. For HIPAA, start with your risk assessment and BAA template.
Weeks 7–12: Implement the controls that close your gaps and start collecting evidence. If you are going for SOC 2 Type I, this is also when you engage your auditor — they evaluate your controls at a point in time, so you want them ready before the audit date.
Beyond week 12: For SOC 2 Type II, your observation period begins. For ISO 27001, you conduct your internal audit and management review before the Stage 2 certification audit. For HIPAA, compliance is ongoing — there is no “done” state, only continuous risk management.
If you want the detailed playbook for the SOC 2 path specifically, Your First SOC 2 Audit — What to Do in the First 30 Days breaks down the first month step by step.
The Framework Is the Easy Part
Picking the right framework is a 15-minute decision once you know who is asking and what data you handle. The hard part is everything after: documenting your controls, collecting evidence, keeping it current, and proving it all to an auditor.
The good news is that the work compounds. If you build your security program with framework-agnostic policies and reusable evidence, adding a second or third framework is incremental — not a restart.
If you are staring at an audit deadline and want to close the gap between “we need compliance” and “we have documentation,” start here.