Third-Party Topical Requirement enters the 2026 audit calendar | AuditSystem

The IIA lists the Third-Party Topical Requirement as effective from 15 September 2026 and mandatory when applicable for assurance engagements.

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  • Upcoming
  • The Institute of Internal Auditors
  • Third-Party Topical Requirement

Public knowledge 01

Operating impact

  1. 01

    Identify engagements involving vendors, service providers, outsourcing, alliances, or other third parties.

  2. 02

    Connect third-party inventories and due-diligence records to the audit universe and risk assessment.

  3. 03

    Prepare reusable procedure, evidence, and finding structures before the effective date.

  4. 04

    Schedule methodology approval and practitioner communication as controlled readiness work.

Public knowledge 02

Review questions

  1. 01

    How is third-party risk represented in the audit universe today?

  2. 02

    Which engagements beginning after 15 September 2026 may need the requirement?

  3. 03

    Who owns methodology interpretation, training, and quality review?

  4. 04

    Which third-party data is complete enough to support risk-based planning?

Public knowledge 03

Intelligence to workflow

  1. 01

    Suggested stage: Scope

  2. 02

    Open a readiness assessment across the audit universe, affected engagements, and methodology owners.

  3. 03

    Retained record: Engagement perimeter, applicability rationale, data gaps, readiness owner, and approval history.

  4. 04

    Guided route: https://www.auditsystem.app/product-tour?stage=scope&briefing=third-party-topical-requirement-readiness

Public knowledge 04

Source freshness record

  1. 01

    Editorial state: Current snapshot

  2. 02

    Last checked: 2026-08-20

  3. 03

    Next review: 2026-08-27

  4. 04

    Editorial owner: Audit methodology editor

  5. 05

    Supersession: No supersession recorded

Public knowledge 05

Source record

  1. 01

    Primary source: The IIA Topical Requirements overview.

  2. 02

    The overview identifies Third-Party as an issued requirement.

  3. 03

    Effective date shown by The IIA: 15 September 2026.

  4. 04

    This briefing organizes readiness questions; it does not determine applicability.

  5. 05

    Primary source: https://www.theiia.org/en/standards/2024-standards/topical-requirements/third-party/

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