SOC 2 documentation provides a structured record of an organization's controls, processes, and responsibilities. The evidence associated with those controls helps an auditor determine whether the stated practices were implemented and, for a Type 2 examination, whether they operated over the specified period. Documentation requirements can therefore vary according to the organization's services, systems, risks, and examination scope.
SOC 2 documentation describes how an organization manages relevant risks and operates its internal controls. Policies establish high level expectations, while procedures explain how employees or systems carry out particular activities. Control descriptions connect these practices with specific risks and objectives.
Common documentation may include:
Documentation should reflect actual business practices. If a written procedure differs significantly from how a process operates, the difference may create questions during an examination.
Evidence is the information used to demonstrate that a control was performed or that a documented process operated as intended. Evidence can be generated through automated systems, business applications, management activities, or formal reviews.
Examples of evidence can include:
The relevance of evidence depends on the specific control. For example, a control requiring periodic access reviews may require records showing who performed the review, when it occurred, what was reviewed, and how identified issues were addressed.
Organizations generally benefit from maintaining evidence in a consistent and organized manner throughout the examination period. Evidence collected only shortly before an audit may not demonstrate how a control operated over time, particularly when the examination evaluates operating effectiveness.
Good documentation practices include:
Documentation should also correspond with the organization's actual systems and responsibilities. Changes to applications, infrastructure, personnel, vendors, or business processes may require related policies and control descriptions to be updated.
There is no single evidence checklist that applies identically to every SOC 2 examination. Requirements can differ based on the trust services criteria included in the examination and the nature of the organization's services and technology environment.
Important factors include:
For a SOC 2 Type 1 examination, the focus is generally on whether controls are suitably designed and implemented at a specified point in time. A Type 2 examination additionally considers whether relevant controls operated effectively over a period of time.
SOC 2 documentation and evidence requirements provide the foundation for evaluating an organization's control environment. Policies, procedures, control descriptions, system information, and risk documentation explain how controls are intended to operate, while records such as access reviews, logs, approvals, incident reports, and monitoring results provide evidence of their operation. The exact documentation and evidence required depends on the examination scope, applicable trust services criteria, organizational processes, and technology environment. Maintaining accurate, current, and organized records can make the examination process more structured and provide a clearer representation of how controls operate in practice.