What questions should I ask a SOC 2 auditor before hiring?
Ask whether it is a licensed CPA firm, when it last passed AICPA peer review, its experience with your stack, whether it integrates with your GRC platform, the fixed price and scope, the timeline, and re-test costs.
The full answer
Start with credentials and independence. Confirm the firm holds an active CPA license, since a SOC 2 report is an AICPA attestation under SSAE No. 18 that only a licensed CPA firm can issue. Ask when it last completed AICPA peer review, which attestation firms undergo roughly every three years, and whether it also sells remediation or penetration testing that could compromise its independence on your engagement.
Next, probe fit and process. Ask how many companies of your size, industry, and technology stack it has audited, who the engagement partner will be, and how responsive that team is during fieldwork. If you run a GRC platform such as Vanta, Drata, Secureframe, or Sprinto, ask whether the firm has a working integration so it can pull evidence directly instead of relying on manual screenshots.
Then pin down scope and money. Ask for a fixed quote that names the Trust Services Criteria in scope, the observation window, whether it is Type 1 or Type 2, and what a re-test or exception costs. For reference, a typical US SOC 2 audit runs $5,000 to $60,000 or more depending on scope, per Vanta, Drata, and Secureframe pricing guides.
Finally, ask about timeline and deliverables: when fieldwork starts, when the draft and final report arrive, and whether the firm helps with bridge letters or customer questions afterward. Audits booked through the AuditNex network start at $2,500 and average about $5,000, and you can compare vetted CPA firms on these answers before hiring.
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Related questions
Are cheap SOC 2 audits legit?
Sometimes. A low price is legitimate only if a licensed CPA firm issues the report under SSAE No. 18. Suspiciously cheap 'audits' that skip fieldwork, use non-CPA reviewers, or auto-generate reports are not real SOC 2 attestations.
Can my SOC 2 auditor also do my penetration test?
Usually no. Under AICPA independence rules, the CPA firm that audits your controls cannot design or operate them, and a penetration test it then relies on can compromise that independence. Use a separate provider for the pentest.
Can my SOC 2 auditor help me remediate issues they find?
Not directly. Under AICPA independence rules your attestation firm cannot design or operate the controls it audits, so it cannot fix your gaps. It can flag deficiencies, but remediation must come from you or a separate advisor.
Do I need a local SOC 2 auditor?
No. SOC 2 audits run remotely, so your auditor's location rarely matters. What matters is that a licensed CPA firm signs the report under SSAE No. 18. Time-zone overlap and industry experience help more than being in your city.
Does my SOC 2 auditor need to be a CPA firm?
Yes. A SOC 2 report is an AICPA attestation issued under SSAE No. 18, so it must be signed by a licensed CPA firm. Readiness prep can come from anyone, but only a CPA firm can issue the report.
Does the auditor's brand name matter to enterprise buyers?
Less than founders expect. Most enterprise buyers accept any SOC 2 report signed by a licensed CPA firm; they check the scope, opinion, and exceptions, not the auditor's logo. A recognizable name can smooth procurement but seldom decides it.
Sources: AICPA SSAE No. 18 attestation standards; AICPA peer review program; Vanta, Drata, and Secureframe SOC 2 pricing guides, 2024-2026; AuditNex network rate card, 2026. Answer written and maintained by the AuditNex research team; last reviewed July 26, 2026. AuditNex is a marketplace — accredited firms price and scope engagements independently.