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ZellisONE Pay

Enterprise Payroll Software reinvented

ZellisONE Pay integrates payroll, absence processing, financial wellbeing and compensation on structured, AI-ready data, for the UK and Ireland’s most complex organisations.

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Reinvent payroll experiences at speed

Pay is the moment your employees judge you most.

ZellisONE Pay turns payroll from a monthly black box into something people understand, trust and can act on.

Routine work runs itself. Decisions happen in the flow of work. Answers arrive the moment they’re needed not after the next cycle closes. And every payroll run lands right first time.

Unlimit payroll performance that delivers

ZellisONE Pay flattens the peaks in the payroll cycle. Exceptions get resolved as they arise. And payroll and reward leaders gain the insight to shape decisions, not just report on them.

More capacity

Experience fewer queries, lower pay-cycle peaks, and less rework with in-flow automation and AI support for administrators.

Higher accuracy

Get payroll right first time, with thousands of embedded validations including automatic National Minimum Wage checks.

Sharper insight

See where payroll pressure is building across the workforce. Then act on it.

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Get to value quickly, with confidence

Move beyond payroll efficiency and create measurable business value from day one. ZellisONE Pay reduces operating costs, improves payroll accuracy, and gives teams the visibility to make faster, better-informed decisions.

Lower the cost of payroll operations

  • Continuous processing and automation
  • Fewer employee queries
  • Real-time insight into performance and risk

Increase the impact of your payroll team

  • Less manual administration and exception handling
  • Specialists freed for compliance and workforce planning
  • More time for strategic reward initiatives

Applied AI built into payroll

Discover structured, AI-ready data and intelligent workflows that automates routine tasks and improves decisions in the flow of work.

Zellis Intelligent Assistant isn't a chatbot bolted onto a payslip, it's AI applied where pay is actually made, checked and approved.

Built on AI-ready data

Achieve perfect payroll with clear, consistent, accurate data. Pay, absence, time and reward data is modelled consistently, while AI works from clean, connected records not inference.

Embedded in daily workflows

Handle exceptions through the cycle not at the cliff edge. Anomalies, variances, starters and leavers, zero or negative pay and unusual movements surface as work happens.

Governed and explainable

Make decisions with confidence so payroll is correct not a suggestion. Variances are translated into plain English for faster root-cause analysis, and every change traceable in a full audit trail.

Real-time payroll, always on

ZellisONE Pay runs payroll as a continuous operation not a monthly event.

  • Real-time dashboard – Find status, progress and risk in headline metrics and visual alerts.
  • Built-in compliance checks – Experience fewer surprises with UK & Ireland governance.
  • AI-powered anomaly detection – Identify unusual or high-risk results early.
  • Automated checklist – Guide your teams through every stage, from statutory reporting to backpay and Alabaster ruling.
  • Executive dashboards – Discover labour cost movement, compliance trends and operational readiness with ease.

Experience real-time payroll

Payroll software built for complexity, proven at scale

Zellis is the trusted payroll provider for some of the UK and Ireland’s most complex brands across private and public sectors.

Multi-contract employees. Unionised rules. Pensions. Benefits in kind. Salary sacrifice. And industry-specific pay cycles.

ZellisONE Pay adapts without breaking structure to deliver:

  • High-volume, high-precision pay runs
  • Continuous recalculation of pensions, salary sacrifice and benefits in kind
  • Legislative compliance across the UK & Ireland
Find out more about pensions

Payroll that improves financial wellbeing

Financial wellbeing is a core part of employee wellness, and it sits inside ZellisONE Pay, not alongside it.

  • Earned Wage Access – Reduce financial stress with early access to earned wages.
  • Education & Guidance – Build confidence with personalised support.
  • Money Management Tools – Easy-to-use tools for budgeting, saving, and planning.
  • Workforce Analytics – Insight to support financial health at scale.
  • Boost Your Pay – Exchange earned pay for discounted digital gift cards.
Find out more about financial wellbeing

Payroll software that's secure, resilient, and enterprise-ready

Adopt intelligence in payroll without widening your risk.

ZellisONE Pay is built on Microsoft Azure for performance, security and continuity, with real-time failover and immutable backups.

Zellis Intelligent Assistant runs on Zellis’ HCM-specific security model: audit-ready, with built-in controls and deterministic outcomes.

Find out more about Zellis Intelligence Platform

Don’t just take our word for it

"We know with Zellis, that the technology is underpinned by a market-leading provider. It’s amazing to see that partnership of tech and strategy delivered to our employees."
Katie Duxbury
Head of Pay & Reward Services
BUPA
“Supported by Zellis, we see our role as treating the employee as a customer and want to give them an exceptional customer experience from end-to-end.”
Ian Hodson
Director of People & Culture
Housing 21
"We could not imagine working without Zellis: using their payroll functions, HR functions, and employee self-service systems. They’ve been by our side for so long now."
Omar Parvez
Senior HR Systems Manager
HomeServe Membership Limited

Ready to unlimit what's next?

Experience first-hand how ZellisONE Pay reinvents the way payroll runs, at speed, within a flat budget, and on an engine you can trust.

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4.6 million
employees paid monthly
£17bn
paid through Managed Services annually
20%
of top UK retailers work with us
1 in 7
employees are paid or rewarded by Zellis Group

What’s next is scalable, configurable and future-proof

Intelligent workflows, Pay automation and personalised people experiences. These are just some of the features you can expect from our AI-enabled platform. Supporting the full employee lifecycle, we also tailor our solutions to your organisation’s unique needs.
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Benefits

Design and deliver benefits that are personal, valued, and perform for your organisation. With built-in comms, targeting, and automation, employee engagement is covered.

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HR

Provide clarity, control, and adaptability in your organisation with one connected system. ZellisONE HR brings insights to the surface so you can prevent issues from becoming problems.

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WFM

Adapt, predict, and optimise your workforce coverage. Increase service performance with smarter scheduling and reduce cost-to-serve with precision.

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Pay

Discover real-time precision with proven flexibility. Built for compliance and confidence across UK and Ireland, ZellisONE Pay is trusted in the most complex payroll environments.

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Talent

Attract and retain talent with one intelligent flow. Support your managers and employees with AI-enabled onboarding and offboarding, and personalised learning and development.

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