New Zealand Treasury Executive and Leadership Team

August, 2026

Leadership Overview

New Zealand Treasury has 4 executives leading key functions including financial management, operational strategy, central agency services, and human capital development.

Focused on enhancing national economic prosperity, New Zealand Treasury delivers rigorous fiscal oversight and policy guidance to improve living standards for all citizens through transparent governance and sustainable public sector performance.

Leadership Roles at New Zealand Treasury

  • Chief Financial Officer - Glenn McStay
  • Deputy Chief Financial Officer, Central Agencies Shared Services, The Treasury - John Toomath
  • Chief Operating Officer - Cath Atkins
  • Chief People Officer - Fiona Foster
  • Glenn McStay - Chief Financial Officer

    Glenn McStay, the Chief Financial Officer at New Zealand Treasury, directs the comprehensive fiscal strategy and budget forecasting processes essential for national economic stability. Overseeing the allocation of public funds, the Chief Financial Officer ensures rigorous adherence to financial management standards across all government departments. This leadership role involves constant collaboration with policymakers to refine economic models and optimize investment management outcomes. By maintaining strict fiscal discipline, Glenn McStay directly impacts the long-term sustainability of the national budget. The Chief Financial Officer also manages complex reporting requirements to ensure transparency for the public and government stakeholders. Through the implementation of advanced financial oversight mechanisms, McStay secures the integrity of the national balance sheet. This position requires constant vigilance regarding macroeconomic shifts, ensuring that the financial framework remains resilient against global market volatility while supporting the core mission of lifting living standards for all citizens.

    John Toomath - Deputy Chief Financial Officer, Central Agencies Shared Services, The Treasury

    John Toomath, the Deputy Chief Financial Officer, Central Agencies Shared Services, The Treasury at New Zealand Treasury, manages the delivery of shared financial services across critical government entities. Coordinating the complex infrastructure of central agency support, the Deputy Chief Financial Officer, Central Agencies Shared Services, The Treasury ensures that shared service models provide cost-effective and reliable financial processing. This leadership role involves harmonizing financial reporting standards to maintain consistency and accountability across the public sector. By overseeing these shared service initiatives, John Toomath directly contributes to the efficiency of government operations and the reduction of administrative overhead. The Deputy Chief Financial Officer, Central Agencies Shared Services, The Treasury also facilitates communication between agencies to resolve financial discrepancies and improve service delivery. Through the strategic management of these shared resources, Toomath strengthens the overall financial health of the public sector, ensuring that essential services remain supported by robust and scalable financial systems.

    Cath Atkins - Chief Operating Officer

    Cath Atkins, the Chief Operating Officer at New Zealand Treasury, architects the internal operational frameworks that enable efficient delivery of economic policy and public sector guidance. Managing the day-to-day administrative functions, the Chief Operating Officer ensures that all internal processes align with the broader goals of government accountability and effective service provision. This leadership role involves streamlining workflows across various departments to enhance productivity and cross-functional collaboration. By optimizing organizational infrastructure, Cath Atkins directly supports the ability of the agency to respond to urgent economic challenges. The Chief Operating Officer also oversees the integration of digital tools to improve data accessibility for policymakers and the general public. Through meticulous management of operational resources, Atkins drives the continuous improvement of internal systems. This position requires a focus on operational excellence, ensuring that the agency maintains the capacity to deliver high-quality financial advice and public sector performance guidance consistently.

    Fiona Foster - Chief People Officer

    Fiona Foster, the Chief People Officer at New Zealand Treasury, directs the human capital strategy required to attract and retain top-tier talent for complex economic policy work. Overseeing the development of organizational culture, the Chief People Officer ensures that the workforce remains aligned with the mission of improving national living standards. This leadership role involves designing comprehensive training programs and performance management systems that foster professional growth and accountability. By cultivating a high-performance environment, Fiona Foster directly impacts the quality of economic advice provided to the government. The Chief People Officer also manages diversity and inclusion initiatives to ensure that the agency reflects the diverse needs of the population. Through the strategic alignment of talent with organizational objectives, Foster drives the long-term capability of the agency. This position requires a focus on employee engagement and leadership development, ensuring that the staff possesses the expertise necessary to navigate the evolving economic landscape.

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    Frequently Asked Questions Regarding New Zealand Treasury Top Executives and Leadership Team

    Who leads New Zealand Treasury?
    New Zealand Treasury is led by Glenn McStay (Chief Financial Officer), along with executives such as John Toomath (Deputy Chief Financial Officer, Central Agencies Shared Services, The Treasury) and Cath Atkins (Chief Operating Officer).
    Who is part of New Zealand Treasury’s executive team?
    The executive team of New Zealand Treasury includes leaders such as Glenn McStay (Chief Financial Officer), John Toomath (Deputy Chief Financial Officer, Central Agencies Shared Services, The Treasury), Cath Atkins (Chief Operating Officer) and other senior executives.
    How many executives does New Zealand Treasury have?
    New Zealand Treasury has 4 executives leading key business areas.
    What roles are included in New Zealand Treasury’s leadership team?
    The leadership team of New Zealand Treasury includes roles such as Chief Financial Officer, Deputy Chief Financial Officer, Central Agencies Shared Services, The Treasury, Chief Operating Officer, Chief People Officer.