The impact of value-added tax was highlighted by business and tax leaders at the Global Forum on VAT hosted by the OECD early this year. The Platform for Collaboration on Tax also observed that VAT has considerable further revenue potential globally, while many countries have been reviewing ways to address the VAT gap.
In this context, New Zealand’s experience with a goods and services tax is regarded as an exemplary consumption tax model. Its administrative simplicity dramatically reduces compliance burdens. There are fewer boundary interpretation issues, less tax avoidance, fewer disputes, and less need for elaborate guidance. This purity is cited internationally as a benchmark for VAT design, with New Zealand’s GST coming closest to an ideal VAT.
New Zealand’s GST is an efficient tax to collect, applying to virtually all consumption—unlike many countries where VAT systems are riddled with often complex exemptions. This ensures that it is a significant and reliable part of the country’s tax mix. Statistics show that GST consistently represents a substantial share of total revenue, sitting just below individual taxes.
In absolute terms, total tax revenue in New Zealand reached NZ$115.4 billion ($66.8 billion) in 2024, with GST forming NZ$29.2 billion. Although percentages fluctuate, GST typically contributes around a quarter of total tax revenue—a higher share compared with many other countries.
Optimal Design
The efficient GST design relies on several crucial elements for its success.
A comprehensive base. GST applies to virtually all supplies, with minimal exemptions (such as financial services and residential letting) making it one of the broadest GST/VAT bases globally—only Brazil has a broader base, as financial services are taxed.
This ensures that consumption is taxed consistently, avoiding distortions, and allows the government to raise substantial revenue without an excessively high standard rate. In general, a broad VAT base allows policymakers to consider a lower standard rate.
A single rate. GST is applied at a single rate (currently 15%), unlike many VAT systems that use multiple rates. The only exception is a lower rate for independent living with compulsory care services. Multiple rates—common in Europe—create complexity, more compliance costs, classification disputes, and lobbying pressure. The single rate avoids these issues while reducing compliance costs.
High neutrality and efficiency. Because GST taxes consumption broadly and evenly, it has minimal impact on economic decisions. Consumers are less likely to alter behavior purely for tax reasons, and businesses face fewer distortions in production decisions.
Invoice-credit. GST uses a credit-invoice system, where businesses pay tax only on the “value added” (output tax minus input tax). This ensures that GST is collected throughout the production chain and avoids cascading taxes.
Stability. The fundamental structure of GST has remained stable, with two rate increases and targeted refinements concerning GST apportionment, grouping, zero-rating, fundraising and cryptocurrency raising, and the digital economy.
Policy innovations that contribute to its success include:
Financial services. Financial services are typically exempt in GST/VAT systems, creating distortions and complexity as well as greater cost due to unrecoverable input tax. New Zealand addresses this by uniquely zero-rating business-to-business financial services transactions, thereby reducing inefficiencies and improving GST recovery.
Crypto assets. To avoid potential double taxation, market distortions and complexity, the law was amended to disregard cryptocurrency for GST purposes. Further, options and brokerage services concerning cryptocurrency are GST-exempt. By removing many crypto transactions from the scope of GST—other than non-fungible tokens (treated as taxable)—the system enhances certainty and avoids different treatment compared with money or financial instruments.
Future Trends
Given its stability and efficiency, GST is expected to remain a central pillar of New Zealand’s tax system, while continuing to adapt to e-invoicing, digital reporting and artificial intelligence in tax compliance. With its comprehensiveness and high efficiency, it embodies many features of a “best in class” consumption tax.
Maintaining the broadest base. Political pressure to exempt essential goods such as food occurs periodically. International evidence suggests that introducing exemptions would erode the system’s efficiency and simplicity.
Global digital economy. New Zealand will continue to align with international best practices, particularly in relation to the digital economy. GST collection on remote services and low value imported goods has been very successful in New Zealand, generating the highest tax revenue as a percentage of GDP globally.
Fairness considerations. GST is often criticized as being regressive. Future policy debates should focus on addressing distributional concerns through targeted transfers or income tax adjustments rather than altering GST itself—preserving its design integrity.
Such a well-designed tax is a powerful instrument capable of application in different fiscal and economic circumstances, and ideally suited to digitalization of tax processes, the taxation of the digital economy, and addressing GST/VAT policy gaps.
This article does not necessarily reflect the opinion of Bloomberg Industry Group, Inc., the publisher of Bloomberg Law, Bloomberg Tax, and Bloomberg Government, or its owners.
Author Information
Eugen Trombitas is a global indirect tax expert and has spent a major part of his career working with New Zealand’s GST.
Write for Us: Author Guidelines
To contact the editors responsible for this story:
Learn more about Bloomberg Tax or Log In to keep reading:
See Breaking News in Context
From research to software to news, find what you need to stay ahead.
Already a subscriber?
Log in to keep reading or access research tools and resources.