Comparison Guide

Affinity vs Definitiv – outsourced & managed payroll compared

For: Payroll Managers, HR Leaders, Finance Directors|11 min read|Last updated: September 2026

This comparison is published by Affinity. Vendor information is based on publicly available sources. Confirm current capabilities directly with Definitiv.

The short version

Definitiv (The Access Group) delivers from Perth, Sydney, and Melbourne with a strong Australian focus, backed by global Access Group technical centres in Malaysia and the UK, and its standard model keeps your internal People & Culture team as the Tier-1 employee contact. Affinity is 100% onshore across AU and NZ with equal depth in both jurisdictions, and its local team owns employee support directly rather than routing queries back to your HR desk. The comparison mostly comes down to how much genuine NZ operation you run and who you want fielding payslip questions.

Delivery footprint

Outsourced payroll is a service, not just software – so where the people running your payroll actually sit matters.

Affinity
  • Proprietary multi-tenant cloud SaaS (Affinity Payroll Engine)
  • 100% onshore: Melbourne, Sydney, Auckland, Whangārei
  • Native AU & NZ processing on a unified database
Definitiv
  • Proprietary cloud-native micro-pay engine (Definitiv Cloud Engine, The Access Group)
  • Hybrid/onshore: Perth, Sydney, Melbourne, supported by global Access Group technical centres (Malaysia, UK)
  • Strong Australian focus; selective New Zealand deployment

Why this matters: Definitiv's client-facing delivery from Perth, Sydney, and Melbourne is genuinely onshore for Australian operations, but it draws on The Access Group's global technical centres in Malaysia and the UK for underlying platform support, and its New Zealand coverage is selective rather than a core focus. Affinity's footprint is 100% onshore across both AU and NZ, with no offshore technical centres and equal engineering investment in both jurisdictions.

Calculation depth

Definitiv's award engine is highly visual and rules-based, capable of interpreting complex multi-award conditions in real time – a strength built specifically for mid-market Australian businesses with variable-hour workforces. On the New Zealand side, Definitiv supports standard NZ leave rate calculations and statutory templates, consistent with its selective rather than core NZ deployment.

Affinity's award engine covers the same category of AU complexity – a rule builder for intricate shift penalties, multi-tier EBAs, and allowances – paired with a native NZ Holidays Act engine tracking continuous gross earnings, OWP, ADP, and leave liabilities as a first-class, not supplementary, capability. Both providers offer full STP Phase 2, SuperStream, and Payday Super preparation. For an organisation running genuine trans-Tasman operations rather than a predominantly Australian business, that NZ depth gap is the calculation-side distinction to weigh.

Audit, QA & who owns support

Definitiv runs pre-finalisation exception registers, automated rule breach alerts, and real-time gross-to-net variance checks – a solid automated QA layer ahead of payslip finalisation. Affinity pairs equivalent pre-payslip automated checking (Payroll IQ) with a dedicated local payroll manager performing variance audits, adding a named human review step.

On support ownership, Definitiv's standard model retains client HR: your internal People & Culture team responds to staff pay queries directly, while Definitiv – through The Access Group's client support desk and managed payroll technical specialists – manages Tier-2 back-office operations. Escalation runs through that Access Group support desk rather than a dedicated local Payroll Manager.

Affinity's local AU/NZ team owns Tier-1 employee queries directly, with a named local Payroll Manager as the primary operational escalation point. If your goal in outsourcing is to remove payslip-query handling from your internal People & Culture team rather than keep it in-house with better tooling, this is the deciding difference between the two.

Banking & who carries the liability

Definitiv generates direct banking distribution files or manages disbursals via Access clearing solutions, giving clients flexibility in how funds move. Affinity operates a provider-managed trust and disbursal model as standard, executing net pay, ATO, IRD, and super fund payments directly or via ABA files.

Regardless of which banking or disbursal model is in place, statutory payroll compliance liability under the Fair Work Act 2009 (Australia) and New Zealand employment law is non-delegable to a third party – the employer remains accountable for correct payment and reporting no matter who executes the transfer.

Retained resourcing & implementation

DimensionAffinityDefinitiv
Retained customer FTE0.15 – 0.3 FTE per 1,000 employees0.25 – 0.5 FTE per 1,000 employees
Implementation velocity8 to 16 weeks (full parallel run testing)8 to 16 weeks
Ideal profile100 to 10,000+ employees; complex Modern Awards, EBAs, and trans-Tasman workforces100 to 5,000+ employees; mid-market Australian businesses with variable-hour workforces

Both providers have similar 8–16 week implementation timelines. The larger differences here are retained FTE (0.25–0.5 for Definitiv vs 0.15–0.3 for Affinity, reflecting the Tier-1 support split) and headcount ceiling.

Where Definitiv excels

Definitiv is genuinely strong in areas outside Affinity's focus.

Visual, real-time award interpretation

A highly visual, rules-based engine that interprets complex multi-award conditions in real time – built specifically for variable-hour Australian workforces.

Access Group backing

Support from The Access Group's global technical centres in Malaysia and the UK gives Definitiv broader platform engineering resources than a standalone local provider.

Strong Australian mid-market fit

A 100 to 5,000+ employee ideal profile matches mid-market Australian businesses with variable-hour workforces particularly well.

Matching implementation timeline

An 8–16 week implementation puts Definitiv on par with Affinity for time-to-live, without a materially longer rollout.

Where Affinity excels

Affinity's advantages are specific to trans-Tasman depth and direct employee support.

Equal depth across AU and NZ

A native NZ Holidays Act engine with the same investment as the AU award engine, rather than selective NZ deployment with standard templates.

Direct Tier-1 employee support

Affinity's local team owns employee payroll queries directly, backed by a named local Payroll Manager – your People & Culture team isn't the default Tier-1 contact the way it is under Definitiv's standard model.

100% onshore with no offshore technical centres

Every stage of processing runs from Melbourne, Sydney, Auckland, or Whangārei – no reliance on global technical centres in Malaysia or the UK.

Lower retained FTE burden

A 0.15–0.3 FTE per 1,000 employees range, lower than Definitiv's 0.25–0.5, reflecting work absorbed by Affinity's direct support model.

Higher headcount ceiling

Affinity's ideal profile scales to 100–10,000+ employees, beyond Definitiv's 100–5,000+ range, for growing organisations.

Who's each provider best for?

Choose Affinity if you:
  • Run genuine trans-Tasman operations needing equal AU and NZ depth
  • Want your HR/People & Culture team out of the Tier-1 payslip-query loop entirely
  • Require 100% onshore processing with no offshore technical centres
  • Are scaling past 5,000 employees
Choose Definitiv if you:
  • Are a predominantly Australian mid-market business with a variable-hour workforce
  • Want your People & Culture team to remain the Tier-1 contact for staff
  • Value a highly visual, real-time award interpretation interface
  • Have little or no New Zealand operation to support
Consider both if you:
  • Are mostly Australian today but expect to expand into New Zealand
  • Are weighing whether to keep People & Culture as Tier-1 or hand employee support to the provider
  • Want to benchmark both providers' mid-market award interpretation tooling directly against your award set

Frequently asked questions

Does Definitiv handle employee payroll queries directly, or does my HR team have to manage them?

Definitiv's managed model retains client HR as the Tier-1 contact: your internal People & Culture team responds to staff pay queries directly, while Definitiv (via The Access Group's client support desk and managed payroll technical specialists) manages Tier-2 back-office operations. If reducing internal HR workload for payslip queries is a core reason you're outsourcing, that responsibility split stays with your team under Definitiv's standard model. Affinity's local AU/NZ team owns Tier-1 employee queries directly, with a named local Payroll Manager as the escalation point.

Where is Definitiv payroll actually delivered from?

Definitiv runs a hybrid/onshore model based in Perth, Sydney, and Melbourne, supported by The Access Group's global technical centres in Malaysia and the UK. That means client-facing delivery is Australian, while some technical/back-office support draws on Access Group's international footprint. Affinity's delivery is 100% onshore across Melbourne, Sydney, Auckland, and Whangārei with no offshore technical centres in the chain.

Does Definitiv handle New Zealand payroll as deeply as Australia?

Definitiv has a strong Australian focus with selective New Zealand deployment, and NZ support through standard NZ leave rate calculations and statutory templates rather than a dedicated continuous-calculation Holidays Act engine. Affinity runs a native NZ engine tracking continuous gross earnings, OWP, ADP, and leave liabilities as a first-class capability alongside its Australian engine, built for organisations that genuinely operate across both markets.

How does banking and disbursal liability work with Definitiv vs Affinity?

Definitiv generates direct banking distribution files or manages disbursals via Access Group clearing solutions. Affinity operates a provider-managed trust and disbursal model, executing net pay, ATO, IRD, and super fund payments directly or via ABA files. Regardless of which disbursal model is used, statutory payroll compliance liability under the Fair Work Act 2009 (AU) and NZ employment law is non-delegable to a third party – the employer remains accountable either way.

Who keeps Definitiv's award rules current under a managed payroll arrangement?

Definitiv's standard model keeps rule ownership and employee query handling with your internal People & Culture team, with Definitiv's Access Group support desk and payroll technical specialists managing Tier-2 back-office operations behind the scenes. Affinity's local payroll manager owns award rule configuration and maintenance directly as standard, and is also the direct point of contact for employee payslip queries.

Is Definitiv a good fit for a mid-market AU/NZ business?

Definitiv's ideal profile is 100 to 5,000+ employees – mid-market Australian businesses with variable-hour workforces – with an 8–16 week implementation, matching Affinity's own timeline. Affinity's ideal profile extends slightly further to 100 to 10,000+ employees with complex Modern Awards, EBAs, and trans-Tasman workforces. For a purely Australian mid-market business, both are realistic options; the deciding factors are usually Tier-1 support ownership and how much NZ operation you actually run.