New and updated rulings on reassessments

The Commissioner has issued the following 4 public rulings, effective 1 December 2025.

Public Ruling TAA017.1.1 Reassessments decreasing liability for tax

This new ruling sets out the Commissioner’s practice regarding reassessments that decrease a liability for tax under section 17 of the Taxation Administration Act 2001. The ruling sets out the mandatory requirements for the discretion to be exercised and the discretionary factors that may be considered.

Public Ruling DA085.1.13 Concession for homes and first homes—occupancy requirements

Paragraphs 26 and 27 of this ruling have been amended to clarify that, for concession claims subsequent to an assessment, the reassessment follows from the Commissioner allowing a concession claim.

Public Ruling PTA026.2 Employment agency contracts—declaration by exempt clients

Paragraph 16 of this ruling has been amended to insert a footnote that clarifies that the basis of any reassessment decreasing liability for primary tax under s.17(1) of the Taxation Administration Act is set out in Public Ruling TAA017.1.

Public Ruling TAA149C.4.2 Registration of community housing providers as charitable institutions—administrative arrangement

Paragraph 19 of this ruling has been amended to insert a footnote that clarifies that the basis of any reassessment decreasing liability for primary tax under s.17(1) of the Taxation Administration Act is set out in Public Ruling TAA017.1.