New Zealand Treasury Executive and Leadership Team

October, 2026

Leadership Overview

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

Committed to enhancing national prosperity, New Zealand Treasury drives economic policy and fiscal accountability to improve living standards for all citizens through rigorous public sector guidance.

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 frameworks essential for national economic stability. Overseeing the allocation of public resources, the Chief Financial Officer ensures that government spending aligns with long-term prosperity goals. This leadership role involves managing complex investment portfolios and providing critical financial oversight to various government agencies. By implementing robust reporting standards, Glenn McStay maintains transparency and accountability across the public sector. The Chief Financial Officer also collaborates with policymakers to refine economic models, ensuring that fiscal policies remain responsive to shifting global market conditions. Through precise financial analysis and risk management, McStay secures the integrity of the national budget. This position demands constant vigilance over economic indicators, allowing the Treasury to provide accurate guidance to the government while fostering sustainable growth across the entire New Zealand economy.

    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, architects the shared service models that unify financial operations across multiple government entities. Overseeing the delivery of centralized accounting and reporting services, the Deputy Chief Financial Officer, Central Agencies Shared Services, The Treasury ensures that administrative burdens remain minimized for partner agencies. This leadership role involves standardizing financial processes to increase efficiency and reduce costs within the public sector. By leveraging shared infrastructure, John Toomath facilitates seamless collaboration between central agencies and the broader government framework. The Deputy Chief Financial Officer, Central Agencies Shared Services, The Treasury also manages the integration of digital financial tools, providing a scalable foundation for future fiscal management. Through consistent oversight of shared service performance, Toomath supports the government in achieving greater accountability. This position focuses on operational synergy, ensuring that financial resources remain effectively managed across the entire public sector landscape.

    Cath Atkins - Chief Operating Officer

    Cath Atkins, the Chief Operating Officer at New Zealand Treasury, manages the internal infrastructure and operational efficiency required to support high-level economic policy development. Overseeing the daily execution of administrative functions, the Chief Operating Officer optimizes workflows to ensure that government agencies receive timely and accurate data. This leadership role involves streamlining public sector performance guidance and coordinating cross-departmental initiatives to improve service delivery. By refining internal processes, Cath Atkins enhances the overall agility of the organization in responding to urgent fiscal demands. The Chief Operating Officer also monitors the implementation of operational policies, ensuring that all activities adhere to strict governance standards. Through the integration of advanced management systems, Atkins drives productivity across the agency. This position requires a focus on organizational excellence, enabling the Treasury to maintain its reputation as a reliable advisor to the government while managing complex operational challenges on a national scale.

    Fiona Foster - Chief People Officer

    Fiona Foster, the Chief People Officer at New Zealand Treasury, directs the human capital strategy and organizational culture initiatives necessary to attract and retain top-tier economic talent. Overseeing the development of professional training programs, the Chief People Officer ensures that the workforce possesses the expertise required to address complex fiscal challenges. This leadership role involves fostering an inclusive environment that promotes high performance and ethical standards across all departments. By implementing modern talent management practices, Fiona Foster aligns individual career growth with the broader mission of the Treasury. The Chief People Officer also manages workforce planning, ensuring that the agency maintains the capacity to support government policy development effectively. Through strategic recruitment and engagement efforts, Foster builds a resilient team capable of navigating the evolving economic landscape. This position requires a deep commitment to organizational health, enabling the Treasury to sustain its impact on national living standards through a highly skilled and motivated public sector workforce.

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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.