ATO to Improve IBM Mainframe with $104.8 Million Enhancement
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Brief Overview
- The ATO is investing $104.8 million to upgrade to the IBM z17 mainframe.
- The modernization initiative extends through mid-2031, improving processing and AI functionalities.
- A portion of the funding is allocated for the implementation of the Payday Super policy.
- This upgrade increases memory capacity and energy efficiency for better service provision.
ATO Expands IBM Mainframe Upgrade

The Australian Taxation Office (ATO) plans to upgrade its technological infrastructure with a substantial investment of $104.8 million in IBM’s z17 mainframe. This initiative is part of a broader modernization program that began in 2023.
Extension of Mainframe Modernisation
The ATO previously upgraded from an aging z14 mainframe to the more sophisticated z16. This recent extension, signed discreetly just prior to Christmas and effective from January 1, escalates the project’s worth from $87.7 million to $192.5 million and prolongs the initiative by three years, pushing it to mid-2031.
Enhanced Features of the z17 Mainframe
The IBM z17 mainframe is celebrated for its exceptional processing capability, increased memory capacity, and improved energy efficiency. It is built to handle artificial intelligence (AI) workloads effectively, positioning it as an ideal solution for the ATO’s modernization efforts.
Support for Payday Super Policy
A portion of the $104.8 million funding will support the rollout of the Payday Super policy. This policy requires employers to synchronize superannuation contributions with payroll schedules, set to commence in July. The ATO has identified essential system modifications to facilitate this policy change, ensuring compliance and efficiency in processes.
Strategic Implications and Future Outlook
The ATO’s decision to upgrade its mainframe infrastructure highlights a strategic commitment to improved efficiency and capability. This investment not only safeguards the future operations of the ATO but also ensures it stays ahead in digital innovation, aligning with the broader governmental vision for improved services and innovation.
Conclusion
The Australian Taxation Office is making a significant advancement in its technology capabilities through a $104.8 million upgrade to IBM’s z17 mainframe. This development is anticipated to enhance processing power, back new policies like the Payday Super, and extend the modernization program into 2031, aligning with the long-term strategic objectives of the ATO.
