PCI DSS vs SOC 2
By Sam Rivera, Founder, SentinelPanda · August 5, 2026 · 3 min read · PCI DSS
One you must do because a contract says so. The other you do because your buyers ask. Fintechs typically discover they need both, in that order.
Obligation versus expectation
PCI DSS applies by virtue of what data you touch. Store, process, or transmit cardholder data and the card brand rules bind you through your acquirer contract — there is no market judgement involved, and non-compliance carries real financial consequences flowing through your acquirer.
SOC 2 has no such trigger. No law or card brand requires it. It exists because North American B2B buyers made it the default security question in procurement, and answering it well shortens sales cycles. That difference in origin explains almost everything else about the two.
What the deliverable actually is
PCI DSS produces an Attestation of Compliance — a compact document asserting you meet the standard, backed either by a self-assessment questionnaire or, at Level 1, a QSA-led Report on Compliance. It is fundamentally binary: compliant or not.
SOC 2 produces a report written by a licensed CPA firm expressing an opinion against the Trust Services Criteria. It is long, narrative, usually shared under NDA — and it can contain exceptions while still being useful. A SOC 2 with a handful of noted exceptions and management responses is a normal, sellable artefact. There is no PCI equivalent to "compliant, with exceptions".
Scope: narrow and defined versus broad and chosen
- PCI DSS scope is dictated by data flow — the cardholder data environment, plus connected-to and security-impacting systems. You can shrink it (tokenisation, segmentation, outsourcing) but you cannot simply declare it.
- SOC 2 scope is your system description: you define the boundary and the service being described. Security (the Common Criteria) is mandatory; Availability, Processing Integrity, Confidentiality, and Privacy are opt-in.
- This means PCI scope reduction is a genuine engineering exercise with cost savings attached, while SOC 2 scoping is more a matter of honest description.
Effort and overlap
The overlap sits in the operational fundamentals both demand: access control and reviews, change management, logging and monitoring, vulnerability management, incident response, vendor management. If PCI came first, most of your SOC 2 Common Criteria evidence already exists in some form.
What does not transfer: PCI's card-specific mechanics (PAN masking, SAD retention prohibitions, ASV scanning, segmentation testing cadence) have no SOC 2 counterpart, and SOC 2's emphasis on control environment, governance, and the system description has no PCI equivalent. Budget for the delta rather than assuming one covers the other.
Which first
If you handle card data, the sequencing is decided for you — PCI is contractual and dated. Do it on the acquirer's clock, then treat SOC 2 as the commercial follow-on when enterprise deals start stalling on security review.
If you do not handle card data at all, PCI DSS is simply irrelevant to you and SOC 2 is the conversation. Plenty of teams waste a quarter investigating PCI because a customer mentioned it, when tokenising through a payment provider had already taken them out of scope. Confirm your actual scope before you plan either program.