Two facts frame every auditor decision. First, a SOC 2 report is an attestation under the AICPA's standards (SSAE 18 / AT-C 205), so only a licensed CPA firm can issue one — no exceptions, whatever a consultancy's website implies. Second, within that licensed pool the market is wildly unstandardized: the same Security-scope Type II for the same startup might be quoted at $14,000 by a tech-enabled boutique and $70,000 by a Big 4 practice. The report both firms issue carries the same AICPA standing.
That makes auditor selection one of the few places in a compliance budget where an afternoon of diligence reliably saves five figures. It's also where programs quietly go wrong: a firm that doesn't know SaaS environments turns fieldwork into weeks of explaining what an IaC pipeline is, and a firm with no capacity sits on your evidence for a quarter while your timeline slips past the renewal date you promised a customer.
What SOC 2 auditors charge in 2026, by firm tier
Realistic US ranges for a single-entity SaaS company on a Security-scope audit. Adding Trust Services Criteria, locations or in-scope products pushes any tier up; the line items behind these figures are in the full SOC 2 cost breakdown.
| Firm tier | Type I fee | Type II fee | Scheduling lead | Best fit |
|---|---|---|---|---|
| Tech-enabled / audit-only boutique | $5,000–$12,000 | $12,000–$30,000 | 2–6 weeks | Startups and mid-market SaaS on Vanta/Drata-style platforms |
| Regional CPA firm | $8,000–$18,000 | $15,000–$35,000 | 4–8 weeks | Companies wanting a local, relationship-driven engagement |
| National firm (BDO, RSM, etc.) | $15,000–$30,000 | $25,000–$60,000 | 2–4 months | Multi-entity scope, several frameworks, brand-sensitive buyers |
| Big 4 (Deloitte, EY, KPMG, PwC) | $25,000–$50,000+ | $40,000–$100,000+ | 3–6 months | Late-stage/public companies; buyers who require a marquee name |
| Most first-time SaaS audits land at | Boutique or regional tier — $12,000–$30,000 for the first Type II | Same report standing, fraction of the fee | ||
The pattern to internalize: price buys process and brand, not a "better" SOC 2. Every tier issues the same attestation. Pay up only when your buyers, scope or internal complexity genuinely demand it.
Seven factors that actually predict a good engagement
1. CPA licensure and AICPA peer review — the non-negotiables
Confirm the firm is a licensed CPA firm and enrolled in the AICPA peer review program, where another CPA firm periodically inspects its attestation work. Both are table stakes; a firm that hedges on either can't issue a valid report. Verify before you discuss anything else — it takes five minutes and disqualifies the worst offenders immediately.
2. SaaS and cloud-native experience
An auditor who lives in AWS/GCP environments, understands IaC, SSO and CI/CD, and has audited companies your size will sample the right evidence the first time. One that mostly audits banks will ask for artifacts that don't exist in your stack and burn your engineers' hours explaining why. Ask how many cloud-native SaaS audits the specific team — not the firm — completed in the last year.
3. Platform fluency
If you run Vanta, Drata or Secureframe, a firm from that platform's auditor network reviews evidence directly in the dashboard instead of over email threads and spreadsheets. That alone routinely shaves weeks off fieldwork and is a major reason boutique fees are lower — less manual evidence wrangling for them means a smaller bill for you.
4. What the fee actually includes
Quotes are not comparable until you normalize them. Ask each firm whether the price covers a readiness or gap review, how exceptions are handled before they become report findings, whether bridge letters for buyers are included, what re-issuance costs, and what triggers out-of-scope billing. A $16,000 all-inclusive quote regularly beats a $12,000 quote with $6,000 of add-ons hiding in the engagement letter.
5. Capacity and turnaround
Get committed dates in writing: when fieldwork starts, how long it runs and when the draft report lands after your observation window closes. Good boutiques deliver a draft 3–5 weeks after fieldwork; overloaded firms quietly take a quarter. If a firm can't commit to dates on the sales call, it won't hit them after you've signed.
6. Report quality and buyer recognition
Ask for a redacted sample report. A strong report describes your system meaningfully, maps controls cleanly to criteria and handles exceptions with clear management responses — that's what your customers' security teams actually read. Name recognition matters less than founders fear, with one caveat: if your pipeline includes major banks or government-adjacent buyers, ask those buyers whether the firm's name matters before optimizing on price.
7. Multi-year continuity
SOC 2 renews annually, so you're choosing a multi-year relationship. Firms discount meaningfully for a committed Type I → Type II bundle or a multi-year Type II schedule, and if ISO 27001 is on your roadmap, a firm that can leverage the 60–80% control overlap across both saves a second discovery process entirely.
Which auditor tier fits your company?
Answer three questions for a starting point. Educational tool — validate against your buyers' actual requirements. Runs entirely in your browser; nothing is stored or sent.
Fee ranges behind the suggestion come from the 2026 tier table above.
Eight questions to ask on every shortlist call
Run the same script past 2–3 firms so the answers are comparable: (1) How many cloud-native SaaS Type II audits did the team assigned to us complete in the past 12 months? (2) Are you enrolled in AICPA peer review, and when was your last review? (3) Will you work natively in our compliance platform? (4) Exactly what does the fee include — gap review, bridge letters, re-issuance? (5) What are your committed fieldwork dates and draft-report turnaround? (6) Who specifically performs the fieldwork, and what's their experience level? (7) How do you handle exceptions discovered mid-audit before they become findings? (8) Can we see a redacted sample report? The spread in answers — especially to 4, 5 and 7 — usually makes the decision for you.
Red flags that should end the call
A guaranteed pass. An auditor selling a "guaranteed clean opinion" is selling a worthless report; attestation only has value because the opinion is independent. The same firm selling remediation consulting on your audit. Independence rules prohibit a firm from building the controls it then attests to — bundled "we'll fix it and certify it" offers are a structural conflict. No peer review enrollment, or evasiveness about licensure. A quote far below market — sub-$8,000 Type IIs exist, and they tend to come from checklist mills whose reports sophisticated buyers increasingly question. No sample report and no named fieldwork team. If you can't see the work product or meet the people doing the work, you're buying a logo, not an audit.
SOC 2 Audit Prep Kit for SaaS Founders
Every firm on your shortlist starts with the same ask: your policy set, control mapping and evidence trail. Auditors bill by the hour it takes to get those from you — organized companies pay less at every tier. The audit-prep kit is that organization, written to the standard auditors expect, so you skip the $10,000–$15,000 consultant gap assessment.
- 14 core security policy templates (the full set)
- Trust Services Criteria control mapping
- Evidence-collection checklist per control
- Access-review & vendor-tracking trackers
- Incident-response & change-management runbooks
- Auditor-question prep prompts — built for the shortlist calls above
SOC2Guide sells this digital product directly. It's a documentation accelerator, not legal or audit advice — your CPA firm issues the actual report. One-time purchase, instant download, free updates.
Shortcut: start from a platform's auditor network
The fastest way to build a credible shortlist is to pick your compliance platform first and shortlist from its vetted auditor network — every firm in it is platform-fluent by definition, which is the single biggest fieldwork accelerant. All three major platforms publish partner-auditor directories.
Each maintains a network of partner CPA firms that audit natively in the platform.
Some links on this page are affiliate or partner links and we may earn a commission if you sign up, at no extra cost to you. We only list tools we consider genuinely useful, and these links never change our pricing or recommendations.
Read the full Vanta vs Drata vs Secureframe comparison →
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SOC 2 readiness checklist
Get audit-ready before the first shortlist call — organized companies get smaller quotes.
Vanta vs Drata vs Secureframe
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Smaller quotes go to organized companies
Policies, control mapping, evidence trail — ready before the first auditor call. Skip the consultant line item.
Get the audit-prep kitFrequently asked questions
Does a SOC 2 auditor have to be a CPA firm?
Yes. SOC 2 is an attestation under the AICPA's standards (SSAE 18 / AT-C 205), and only a licensed CPA firm can issue the report. Consultancies and platforms can prepare you, but the report must be signed by a CPA firm — one enrolled in the AICPA peer review program. A provider that can't confirm both cannot issue a valid report.
How much does a SOC 2 auditor cost in 2026?
Boutique/tech-enabled firms: $5k–$12k Type I, $12k–$30k Type II. Regional firms: $8k–$18k / $15k–$35k. National firms: $25k–$60k Type II. Big 4: $40k–$100k+. Scope (extra criteria, locations, systems) drives the spread within each tier.
Can my compliance platform (Vanta, Drata) do the audit?
No — platforms collect evidence but aren't CPA firms, and independence rules bar one party from building and attesting to your program. Use their partner-auditor networks as a shortlist source instead: platform-fluent firms audit in the dashboard, which shortens fieldwork and lowers fees.
Does it matter if buyers haven't heard of my audit firm?
Usually not — security teams evaluate the report, not the letterhead, and non-Big-4 reports clear enterprise reviews routinely. Exception: large banks and government-adjacent buyers sometimes scrutinize unfamiliar firms, so ask your biggest prospects before optimizing purely on price.
Can I switch auditors between reports?
Yes, and companies do over fees or slow turnaround. Expect friction: a new firm re-maps your environment, adding hours to the next engagement. Teams doing a Type I → Type II usually keep one firm for both — continuity shortens fieldwork and earns bundled pricing.
How far in advance should you book?
2–3 months ahead for boutique/regional firms, 3–6 months for national/Big 4 — and calendars compress in Q4/Q1 renewal season. Sign the engagement letter while your observation window is still running so fieldwork starts the week it closes.