SOC 1 vs SOC 2 vs SOC 3: which report do you actually need?
By Sam Rivera, Founder, SentinelPanda · May 25, 2026 · 3 min read · SOC 2
The "SOC" family is three reports with the same brand and three different purposes. Pick the wrong one and you spend a quarter producing assurance that no buyer asked for.
SOC 1 — financial-reporting controls for your customer's auditor
SOC 1 reports on controls at a service organisation that are relevant to user entities' internal control over financial reporting. The audience is your customer's financial auditor: when the customer relies on you to process or hold financially material data — a payroll processor, a payments platform, a billing system, a fund administrator — that auditor needs assurance that your controls would not let a misstatement through.
Two flavours: Type 1 (design at a point in time) and Type 2 (operating effectiveness over a period). Same Type 1 / Type 2 distinction as SOC 2; the word "Type" is identical because both reports come from the same AICPA framework family.
SOC 2 — security and operational controls for your customer's buyers and security teams
SOC 2 reports on controls relevant to the Trust Services Criteria — Security at minimum, plus the optional categories. The audience is your customer's procurement, security, and risk functions: they want assurance that the service organisation can be trusted with their data.
Most SaaS companies need a SOC 2. They very rarely need a SOC 1. The mistake is producing the wrong one because the buyer asked for "a SOC report" without specifying.
SOC 3 — the public summary
SOC 3 is a SOC 2 stripped of detail and freely distributable. It carries an opinion from your CPA firm but does not include the description of tests performed, the results of those tests, or the proprietary control language. You can publish it on your trust centre or include it in marketing material; SOC 2 itself is usually NDA-restricted.
It costs little additional auditor effort if you are already producing a SOC 2 — most firms will add SOC 3 for a modest uplift. Worth it if you want a public proof-of-existence document.
How to decide
- Customers ask for "a SOC report" without specifying → almost always SOC 2.
- Customers explicitly mention "ICFR", "financial controls", or their external financial auditor → SOC 1.
- You sell to both payments customers and security-conscious buyers → both SOC 1 and SOC 2 (separate engagements).
- You want a public marketing artifact alongside a private SOC 2 → add SOC 3.
- You are pre-revenue and a buyer pushed back on no SOC report → SOC 2 Type I as a starter (do not start with SOC 1 unless asked).
A frequent confusion
SOC 1 is sometimes assumed to be a "lighter SOC 2" because the number is smaller. It is not — it is an entirely different report covering a different set of controls for a different audience. A SOC 1 has nothing to say about whether your customer's data is safe; a SOC 2 has nothing to say about whether your billing calculation is correct. Pick the one that answers the question your customer is actually asking.