Economic and Fiscal Studies Open access Peer reviewed

Quantifying bracket creep in New Zealand’s personal income tax, 2011–2024

Norman Gemmell, Peer Ebbesen Skov

New Zealand Economic Papers | Oct 6, 2026

Abstract

Abstract

New Zealand’s main personal income tax thresholds were unchanged from October 2010 until July 2024, while consumer prices rose substantially. This note uses annual IRD taxable-income tabulations, calibrated to actual PIT collections, to estimate the revenue effect of this non-indexation. Relative to a CPI-indexed counterfactual, frozen thresholds generated an estimated nominal $5.8 billion in additional PIT revenue in FY2024 and an undiscounted nominal total of $23.5 billion over FY2011–FY2024. As a share of income, the burden peaks for middle earners and declines above the third indexed threshold.

Direct answer

What can I do from this paper page?

Use this page to scan "Quantifying bracket creep in New Zealand’s personal income tax, 2011–2024" quickly: start with the summary and abstract, then check the authors, source, topics, and related papers. From here, open Scollr to follow Economic and Fiscal Studies research, save the paper, or map adjacent work.

Authors

Researchers on this paper

Norman Gemmell

first | Victoria University of Wellington | ORCID 0000-0001-6419-4260

Peer Ebbesen Skov

last | Auckland University of Technology | ORCID 0000-0003-4713-4412

Research areas

Follow related topics

Citation

BibTeX

@article{Gemmell2026Quantifying,
  title = {Quantifying bracket creep in New Zealand’s personal income tax, 2011–2024},
  author = {Norman Gemmell and Peer Ebbesen Skov},
  journal = {New Zealand Economic Papers},
  year = {2026},
  doi = {10.1080/00779954.2026.2737626},
  url = {https://doi.org/10.1080/00779954.2026.2737626}
}

FAQ

Using this paper in a discovery workflow

How do I find related work for this paper?

Use the related papers and topic links on this page as starting points. In Scollr, you can also open the paper and build a literature map around its references, citing papers, and related work.

How can I keep up with new Economic and Fiscal Studies research papers?

Follow Economic and Fiscal Studies research in Scollr. New papers from the topic flow into a personalized feed, and you can save useful studies to revisit later.

Can I cite this paper from this page?

This page includes a static BibTeX block for Quantifying bracket creep in New Zealand’s personal income tax, 2011–2024. Always verify the DOI, source, and publication details against the publisher record before submitting a manuscript.

Follow this research in Scollr

Follow the topics and authors behind this paper, save useful studies, and build a literature map when you are ready to go deeper.

Get the app