If an enterprise prospect's security team emailed you asking for "a SOC report" and didn't specify which one, the answer for almost every SaaS company is SOC 2. SOC 1 and SOC 2 sound like two versions of the same thing because they share a name and a format — both are reports issued by a CPA firm — but they examine completely different things. SOC 1 looks at controls over financial reporting. SOC 2 looks at controls over security. Confusing the two, or building the wrong one because a procurement email was vague, is a slower and more expensive mistake than it sounds like.
SOC 1 vs SOC 2: the actual difference
SOC 1 exists to answer one question: if your company's software or service affects a customer's financial statements, can that customer's auditor trust the numbers that come out of it? It's formally about Internal Controls over Financial Reporting (ICFR). A SOC 1 report examines things like whether your system calculates transactions correctly, whether changes to financial logic are reviewed and approved, and whether access to the systems that produce financial data is appropriately restricted. It exists because your customer's own financial auditor needs assurance over any system outside their walls that touches their books.
SOC 2 exists to answer a different question: does your company have adequate controls to protect the security, availability, and confidentiality of the data in your system? It's built around the AICPA's Trust Services Criteria, and for nearly every SaaS company, the relevant criteria are Security and sometimes Availability. SOC 2 is what procurement and security teams mean when they ask "do you have a SOC report" — it has become the default language for "prove you take security seriously" in B2B software sales, independent of whether financial data is involved at all. If you want the fuller breakdown of what each SOC report type covers, including SOC 3, see What Is a SOC Report? SOC 1, SOC 2, and SOC 3 Explained Simply.
The practical shorthand: SOC 1 is for auditors. SOC 2 is for security teams. If the person asking you for a report works in procurement, IT security, or a vendor risk team, they almost certainly want SOC 2.
Why almost no SaaS company needs SOC 1
SOC 1 only matters if your product is part of how a customer produces their own financial statements. That's a narrow category. A project management tool, a marketing analytics platform, a customer support product, an internal communications app — none of these touch a customer's financial reporting, no matter how sensitive the data inside them is. A security breach at a company like that is a real problem, but it isn't a financial reporting problem for their customers, which is the only thing SOC 1 is built to address.
This is why SOC 1 requests are rare for typical SaaS companies and SOC 2 requests are common. Enterprise buyers care about whether your product is secure, whether you'll keep their data confidential, and whether your systems stay available — all SOC 2 territory. They generally do not care whether your billing engine would pass a financial controls audit, because your billing engine isn't part of their financial statements. The SOC 2 report has effectively become the baseline credential enterprise SaaS buyers expect before they'll sign, which is covered in more depth in Why Do Enterprise Clients Request a SOC 2 Report?
The one case where a SaaS company does need SOC 1
There is a specific, identifiable category of SaaS company where SOC 1 is the right answer: if your product directly processes transactions, calculations, or data that flow into a customer's financial statements. Payroll platforms, billing and invoicing systems, expense management tools, payment processing products, and accounting or reconciliation software are the common examples. If a customer's finance team relies on your system's output to post journal entries, calculate payroll, or determine revenue recognition, their external auditor will likely require assurance over your controls — and that assurance comes in the form of a SOC 1 report, not a SOC 2.
Some companies in this position end up needing both: a SOC 1 because they process financial data, and a SOC 2 because enterprise security teams still want evidence of security controls separately from the financial controls question. If that's your situation, the right move is to scope each report deliberately rather than assuming one covers the other — they genuinely don't overlap in what they test, even though a well-run security program feeds evidence into both.
How to tell which one your prospect is actually asking for
The request itself is often ambiguous. "Can you send us your SOC report?" doesn't tell you which one, and the person who sent that email may not know there's a difference — they're often working from a vendor security checklist that just says "SOC report" as a line item. Rather than guess, there are a few fast ways to find out:
- Ask who's asking. If the request comes from a security, IT, or vendor risk team, it's SOC 2. If it comes from the prospect's external auditor or their accounting/finance team, it's SOC 1.
- Ask why they need it. "We need to show our auditor our vendors are controlled" points to SOC 1. "We need to confirm your security posture before procurement sign-off" points to SOC 2.
- Check if your product touches their financial statements. If your system doesn't calculate, process, or report anything that lands in their books, SOC 1 almost never applies to you regardless of what they typed in the email — it's worth saying so and asking them to confirm.
- Look at what else is in their security questionnaire. If the same email includes questions about encryption, access control, incident response, and uptime, that's a SOC 2 conversation. If it's bundled with questions about financial controls testing or audit trail integrity for transaction processing, that's SOC 1.
When in doubt, it costs nothing to ask the prospect directly: "Just to confirm scope — are you looking for a SOC 1 report on financial controls, or a SOC 2 report on security controls?" Most buyers will answer immediately, and the two-line email saves you from committing months to the wrong engagement.
What happens if you deliver the wrong report
Getting this wrong isn't a paperwork problem — it's a timeline problem. Both report types take months to produce, involve a CPA firm, and require you to build out a control environment before an auditor will even begin fieldwork. If you spend that time building SOC 1 controls around financial reporting when the prospect actually wanted evidence of security practices, you'll have a report that doesn't answer their question at all. Their security team will read it, not find what they're looking for, and ask you to start over — on their timeline, not yours, usually with the deal paused in the meantime.
The reverse mistake is just as costly. If you deliver a SOC 2 report to a customer whose external auditor specifically needs ICFR assurance because your product processes their financial transactions, the auditor will tell them it doesn't satisfy their requirement, and you're back to square one with a frustrated finance team and a now-skeptical security team wondering why you didn't catch this earlier.
Either way, the cost isn't just the wasted engagement — it's the calendar time. SOC 2 Type 1 typically takes several months from kickoff to report, and Type 2 requires an observation period on top of that, so finding out six months in that you built the wrong report can push a stalled deal out by another half-year. It's worth noting that SOC 1 and SOC 2 also split further internally the same way: both come in Type 1 (point-in-time) and Type 2 (operating effectiveness over a period) versions, and most enterprise buyers on either side eventually want the Type 2. If you're already past the "which report" question and into "which type," that's covered in detail in SOC 2 Cost in 2026: What It Actually Costs by Company Stage, which also breaks down budget by company stage.
For the overwhelming majority of SaaS companies — anyone not directly processing a customer's financial transactions — the safe default is SOC 2. It's what enterprise security teams mean by default when they say "SOC report," and it's the credential that unblocks deals gated on security review rather than financial audit. Confirm the ask, confirm who's asking, and you'll know within a day which direction to point your compliance effort — rather than finding out five months in that it was the wrong one.