Deals with the auditor’s responsibilities relating to related party relationships and transactions in an audit of financial statements.


Applicable for audits of financial statements for periods as indicated. Also applies to subsequent annual reporting periods until that standard is superseded by a new/amended/revised standard. Versions prior to the Previous version below will have been archived.

  • ISA (NZ) 550 – Periods beginning on or after 15 Dec 2023

    Date of issue: Jul 2011

    Date compiled: Jun 2023

New version not yet mandatory

  • ISA (NZ) 550 – Periods beginning on or after
    15 Dec 2026

    Date of issue: Feb 2026


    Additional material: ISA (NZ) 550 (2026) marked up version
  • Explanation for decision made Reissued ISAs (NZ)

    Date of issue: Feb 2026

Previous version

  • ISA (NZ) 550 – Periods beginning on or after 15 Dec 2021 (early adoption permitted)

    Date of issue: Jul 2011

    Date compiled: Jun 2021