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22 Austl. Tax F. 59 (2007)
Complexity of New Zealand's Tax Laws: An Empirical Study

handle is hein.journals/austraxrum22 and id is 57 raw text is: Complexity of New Zealand's
tax laws: An empirical study
Caroline Pau, Adrian Sawyer and Andrew Maples*
Abstract
New Zealand's (NZ's) income tax legislation has been identified as unnecessarily
complex and detailed. In response to this concern, the income tax legislation was
reorganised and is undergoing a complete rewrite.The recent enactment of the
Income Tax Act 2004 (ITA 2004), which includes the rewritten Parts C to E,
completes phase three of the rewrite process. Consistent with previous studies, this
analysis uses four readability measures - Flesch Reading Ease Score, Flesch-Kincoid
Grade Level (F-KGL) Index, average sentence length, and percentage of passive
sentences - to examine the readability of New Zealand's ITA 2004 and other tax
related materials, such as Tax Information Bulletins (TIBs) and binding rulings.
Although the rewrite process is not fully complete, the results from this study show
that the readability of the ITA 2004 has improved significantly as indicated by the
Flesch Reading Ease Score and average sentence length.
*   Caroline Pau is a B Corn (Hons) graduate, Adrian Sawvyer an Associate Professor of
Taxation and Andrew Maples a Senior Lecturer in Taxation, all froin the Department of
Accountancy, Finance & Information Systems, Universitv of Canterbury, Christchurch
NZ. The corresponding author is Adrian Sawyer (adrian.sawyeracanterbury.ac.nz).
This is based on an earlier version of a project completed by Ms Pau as part of her B
Con (Hons) program. We wish to thank the anonymous reviewer for their valuable
conrnients on an earlier version of this article.
This article was accepted for publication 2 March 2007.

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