Terry Baucher details how the previous National-led government appears to have successfully raised at least $1 billion of extra revenue annually with little or no fanfare

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By Terry Baucher*

Louis XIV’s finance minister, Jean-Baptiste Colbert, famously declared that “the art of taxation consists in so plucking the goose as to obtain the largest possible amount of feathers with the smallest possible amount of hissing.” 

What was true in the seventeenth century remains true today. And although Colbert might not recognise much of the modern economy and tax system, he would probably still appreciate some of the sleight of hand used by New Zealand finance ministers to raise funds without too much hissing. At a rough guess the last National government seems to have successfully plucked at least $1 billion of extra revenue annually with little or no fanfare. How?

We’re not talking about specific tax related measures often of a quite technical nature. These are a staple of every government’s budget. 

A long-standing option used by governments of both hues is inflation, and in particular ‘fiscal drag’. This is when income tax rate thresholds are not inflation adjusted so wage growth lifts more earners on to higher marginal tax rates.  

Income tax rates and thresholds were last adjusted in October 2010. At that time someone on the average wage had a marginal tax rate of 17.5%. According to the labour market statistics for the September 2018 quarter, average weekly earnings are $1,212.82 or $63,067 annually, well above the $48,000 threshold at which the 30% tax rate applies. Even median weekly earnings at $997 are also well above the $48,000 threshold. 

So how much revenue does fiscal drag raise annually? The short answer would be “Heaps.” The Budget Economic and Fiscal Update released in May’s Budget estimated the effect of fiscal drag as $1.6 billion over the five years to 30 June 2022.   

A more detailed analysis of the issue was prepared for then Finance Minister Bill English in November 2016. 

The aide-memoire noted that adjusting for inflation since October 2010, effective 1 April 2017, would cost $1 billion in the first year. Clearly, baulking at this “large cost,” the paper instead modelled adjustments to thresholds based on price inflation over a single year, from June 2017 to June 2018, and applying that inflation factor to current thresholds beginning 1 April 2017. This produced a cost of $220 million for the 2017-18 year rising to $720 million by 2019-20. 

The paper concluded by noting “a downside to not annually indexing is that there is less transparency for taxpayers.” This is something that politicians of both hues will rather conveniently rely on when trumpeting “tax cuts.”  

Although fiscal drag is a well known tactic, Bill English also employed variations of it elsewhere to raise revenue. In the 2011 Budget inflation adjustments to the student loan repayment threshold of $19,084 were frozen until 1 April 2015. This and other changes to the student loan scheme added up to $447 million in “savings” over five years. The freeze on the student loan threshold was later extended until 1 April 2017.

The 2012 Budget froze the parental income threshold for student allowances until 31 March 2016, a measure worth $12.7 million over four years. More controversially, the same Budget increased the repayment rate applying to income above the student loan repayment threshold from 10% to 12% – a defacto tax increase. This increase raised (sorry “saved”) $184.2 million in operating costs over four years. 

The 2011 Budget saw changes which also stopped inflation adjustments of the threshold at which abatement of working for families tax credits applied. Instead, measures reducing the threshold over a four year period from $36,827 to $35,000 were introduced. A “slightly higher” abatement rate of 25 cents in the dollar instead of 20 cents in the dollar was also phased in over the same period. These measures were intended to realise savings of $448 million over four years. (The current government’s Families Package partly reversed these changes by raising the abatement threshold to $42,000 whilst lifting the abatement rate to 25 cents in the dollar from 1 July 2018).

The 2011 Budget also removed the exemption from employer superannuation contribution tax (ESCT) on employer contributions to KiwiSaver funds. This is probably the biggest single measure that increased the tax take outside of the rise in the rate of GST to 15% in October 2010.  

The exemption was removed with effect from 1 April 2012 and the compulsory employer contribution was also increased from two to three percent from 1 April 2013.  These changes saw the annual ESCT collected rise by almost $400 million from $681 million in the June 2011 year (the last full year before the changes) to $1,078 million in the June 2014 year (the first full year of the changes). 

Finally, there is the opportunity to increase various duties such as those on alcohol, petroleum and tobacco. For example, tobacco excise duty has been increased every year since January 2009 as part of the country’s Smokefree policy. As a result, the excise duty per cigarette has gone from 30.955 cents per cigarette in 2009 to 82.658 cents per cigarette as of 1 January 2018. During the year to June 2018 the government collected over $1.8 billion in tobacco excise duty. 

All told, the combination of fiscal drag, ESCT increases and changes to student loans and working for families cumulatively represent at least $1 billion of additional revenue collected annually. Throw in the various excise duty increases, specific “base protection” tax measures such as changes to the thin capitalisation rules for foreign-owned banks or the the “Bright-line test” introduced in 2015, and the increased annual “tax” take is close to $1.5 billion.   

These under the counter tax increases have happened with little fanfare under the guise of “savings”, or “better targeting of government programmes” (how the Budget 2011 changes were described). Colbert would no doubt approve of this efficient plucking of the goose with very little hissing.


*Terry Baucher is a tax consultant and director of Baucher Consulting Limited a specialist tax consultancy. He is the co-author with Deborah Russell MP of Tax and Fairness published in 2017 by Bridget Williams Books.

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