Approximately 550 employees were part of the first live payroll as the Council replaced legacy systems and advanced its wider Our Council transformation programme.
— Atturra has announced the successful implementation and go-live of TechnologyOne Human Resources and Payroll at Invercargill City Council. The Council completed its first live payroll on the new cloud-based platform in early July 2026, marking a significant milestone in their broader Our Council transformation programme.
The first production payroll processed approximately 550 employees and marked the Council’s transition from ageing, separate payroll and human resources applications to an integrated enterprise platform. The implementation forms part of Invercargill City Council’s multi-year Our Council programme, established to modernise core business systems after an extended period of limited investment in enterprise technology.
The programme aims to strengthen organisational capability, reduce reliance on ageing systems and support modern digital services for staff and the community.
Payroll is one of the Council’s most operationally critical functions. Its workforce includes multiple employment arrangements and complex payroll rules, with the payroll platform also integrating with a range of other business systems. Moving this function required detailed design, configuration, data validation, testing, training and change preparation while maintaining normal payroll operations.
Atturra commenced project initiation in early 2024 followed by planning, design, configuration, testing, training and deployment. The phased approach included an earlier go-live for Invercargill Airport in February 2026, providing a smaller operating environment in which to validate the solution and inform the broader Council rollout.
During delivery, the Council and its implementation partner, Atturra addressed challenges involving scope, integrations and overall programme complexity through strengthened governance, additional testing and joint problem-solving. Payroll accuracy and business continuity remained the primary go-live criteria.
“Successfully implementing a new payroll platform is a significant technology milestone because every employee depends on it operating accurately and reliably, said, Michael Day, CEO Invercargill City Council. Completing our first live payroll reflects the commitment of our Payroll, People and Culture, Information Services and Project teams, together with the support of Atturra as our implementation partner.”
The go-live gives Invercargill City Council a modern, supported foundation for payroll and human resources while improving the connection between these functions. The immediate milestone is the accurate completion of the first live payroll, with benefits including improved reporting, more streamlined processes and stronger internal capability are expected to develop as the Council embeds the platform and continues optimisation work.
“This milestone shows what councils can achieve through strong governance, detailed testing and close collaboration when modernising critical business systems,” said John Mazenier, General Manager, within Atturra’s Business Applications team.
For other councils considering a similar transition, the project demonstrates the value of treating payroll modernisation as an operational change programme rather than a standalone software deployment. A phased rollout, clear governance, extensive testing and strong ownership from internal subject matter experts were key elements of the approach.
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