How Ace Payroll and Definitiv differ
Ace Payroll is a New Zealand-only, locally-installed desktop payroll application, owned by MYOB since 2015 and originally built in 1990 for small NZ employers. It handles IRD Payday Filing, KiwiSaver and ACC levies natively, priced on a flat-fee rather than per-employee basis. MYOB has confirmed Ace Payroll will be decommissioned on 1 April 2027, with customers directed to MYOB Business Payroll.
Definitiv (marketed as Definitiv Evo) is a cloud-native AU/NZ/Singapore payroll and workforce-management platform originally built in Perth, acquired by The Access Group (a UK-headquartered global software group) in 2021. It offers a 100% configurable Award Engine, purpose-built rostering with live time-tracking, and Evo Copilot AI insights.
The core distinction for a buyer is what each platform was built to optimise for: Ace Payroll is a low-cost desktop payroll tool for small NZ businesses, now being decommissioned, while Definitiv is a cloud-native AU/NZ/Singapore payroll and workforce-management platform. AU/NZ payroll sits within each vendor's broader focus rather than as the sole product, which is where a specialist platform like Affinity differs from both.
One further point matters for this comparison: Ace Payroll is being retired by its owner (see the FAQ below), which means organisations still on it face a mandatory migration rather than a discretionary choice.