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Type I Report

Definition

An attestation report that provides an auditor's opinion on whether controls are suitably designed to meet the stated control objectives, assessed at a single point in time. It does not assess whether those controls actually operated effectively.

Framework
SOC attestation reporting
Scope
Design suitability only
Timeframe assessed
A single point in time
Does not cover
Operating effectiveness of controls

Common questions

Why is a Type I report weaker evidence than a Type II report for a forensic accounting or data-custody review?+

A Type I opinion only confirms that controls were designed appropriately as of one date; it says nothing about whether staff actually followed those controls over time, so it cannot support a claim that a system was reliably secure or compliant during an incident window.

When would an organisation rely on a Type I report instead of commissioning a Type II?+

A newly implemented control environment may not yet have enough operating history to support a Type II opinion, so a Type I report is used as an interim attestation until sufficient time has passed to test operating effectiveness.

Related terms

Complementary User Entity Controls (CUECs)
Controls that the service organisation's system design assumes the user entity will implement. Listed in the SOC 2 report. If the user...
SOC 1 (SSAE 18)
A report on controls at a service organisation that are relevant to user entities' financial statements. Governed by Statement on Standards for...
SOC 2
A report on controls relevant to the AICPA's Trust Service Criteria. Produced under the AT-C 205 attestation standard. Covers Security (mandatory) plus...
Trust Service Criteria (TSC)
The five criteria used to evaluate controls in a SOC 2 engagement: Security, Availability, Processing Integrity, Confidentiality, and Privacy. The criteria are...
Type II Report
An attestation report that provides an auditor's opinion on both the suitability of design and the operating effectiveness of controls over a...

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