Payroll System Customisation Services

Already have a payroll system? pHRism tailors and extends it
beyond standard configuration, whether we implemented it or not, as pay structures and your business change.

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500+ Deployments
50+ Customers
24 Countries
15 Vendors

Unveiling Deeper Payroll System Customisation Across the UK

pHRism has customised and extended payroll systems for UK businesses for over 10 years, from our headquarters in London and our office in Camberley.

HR and payroll systems consultants at work

Tailoring A Payroll System You Already Have

This is not an implementation project. If your payroll system is already live, whether pHRism set it up or another provider did, pHRism tailors pay rules, reports and approval chains beyond what was configured at launch, so the system keeps pace with how your business actually pays people today.

Use Cases

  • Deeper pay rule and calculation customisation beyond initial configuration
  • Custom payslip formats and statutory reports added as needs evolve
  • Works with systems pHRism implemented or systems already in place from another provider
Discuss Customising Your Payroll System

30-minute call | No obligation | Clear next steps

Customising Where The Platform Allows It, Building Around It Where It Does Not

Not every payroll platform lets you configure what you actually need, particularly for complex pay structures like commission, shift differentials or regional pay variations. Where a system supports it, pHRism customises pay rules and reports directly. Where a platform's customisation options fall short, we build middleware alongside it to deliver the same outcome without waiting for the vendor to add the feature.

Use Cases

  • Native customisation applied wherever the platform supports it
  • Custom middleware built to extend platforms with limited customisation options
  • Complex pay structures handled correctly, regardless of the platform's native limits
Ask About Extending Your Payroll Platform

30-minute call | No obligation | Clear next steps

HR and payroll systems consultants at work

Building Custom Pay Rules For How Your Business Actually Pays People

Commission structures, shift differentials and union-agreed pay scales rarely fit a standard payroll template. pHRism builds the specific pay calculations your business needs, so pay is accurate without your payroll team working around the system's limits every cycle.

Use Cases

  • Complex pay calculations built for commission, bonuses and shift differentials
  • Regional or union-agreed pay variations configured correctly
  • Custom approval chains for non-standard pay adjustments
Discuss Your Pay Rule Requirements

30-minute call | No obligation | Clear next steps

Adapting Your Payroll System As Your Organisation Changes

Configuration that fit your business last year may not fit it today. pHRism updates pay structures, approval chains and reporting as you restructure, merge, or add new entities, so the system keeps reflecting how the business actually runs.

Use Cases

  • Configuration updated for restructures, mergers or new entities
  • Pay structures adjusted as new business units or countries are added
  • Regular reviews to keep configuration matched to how the business runs
Keep Your Payroll System Aligned To Your Business

30-minute call | No obligation | Clear next steps

Our Case Studies

With deep expertise in HR, payroll and workforce technology, pHRism helps organisations optimise, integrate and improve their HR platforms.

HR team reviewing system improvements for SD Worx
SD Worx logo

Unlock the Full Potential of Your Current HR Solutions

Learn how our strategic partnership empowered SD Worx to unlock greater value from their existing HR systems by enhancing efficiency, reducing costs, and overcoming key challenges.

View Case Study
FE fundinfo team working on automated user onboarding
FE fundinfo logo

Achieve Efficiency with Automated Multi-System User Management for New Joiners

Find out how we streamlined onboarding by automating user creation and role-based permissions across Active Directory and enterprise systems.

View Case Study
CVC team reviewing salary management dashboards
CVC logo

Boosting Efficiency and Transparency with a Custom Salary Management Solution

Find out how we transformed our client's salary change management process through the development of a customised solution that enabled seamless integration.

View Case Study
Cardano HR and payroll integration project
Cardano logo

Fully Integrated HR-Payroll Workflow that Exceeded Business KPIs

Learn how our custom Salesforce to Nmbrs payroll integration increased the HR and payroll team's efficiency by 45% and eliminated manual errors.

View Case Study
National Gas ADP GlobalView payroll project
National Gas logo

On-Time ADP GlobalView Payroll Go-Live for National Gas

See how we helped National Gas go live on ADP GlobalView on schedule with 100% payroll accuracy after its separation from National Grid.

View Case Study

Our Process

A focused customisation process that takes your existing payroll system from current state to properly tailored, without a full implementation project.

Client Reviews & Testimonials

We have worked with 200+ clients in the past 10+ years of our existence. You can have a look at some of our client reviews

pHRism have supported us for over 10 years and always provided an exceptional service. Muneer & team are incredibly hard working, highly skilled and knowledgeable. Can't recommend them highly enough.

Matthew Green

Head of IT, CVC

Lead the project through each of the various deployment stages with clarity, collaboration and great pace.

Louise Moore

Head Of Technology & Operations

Phenomenal customer service! Bespoke reporting requests were always very well-done.

Jonathan Hubble

Head of Human Resources, CVC

pHRism have always delivered with a high level of professionalism coupled with outstanding technical ability.

Gavin Thomas

IT Manager, Apax Partners

pHRism have supported us for over 10 years and always provided an exceptional service. Muneer & team are incredibly hard working, highly skilled and knowledgeable. Can't recommend them highly enough.

Matthew Green

Head of IT, CVC

Lead the project through each of the various deployment stages with clarity, collaboration and great pace.

Louise Moore

Head Of Technology & Operations

Phenomenal customer service! Bespoke reporting requests were always very well-done.

Jonathan Hubble

Head of Human Resources, CVC

PHRism have always delivered with a high level of professionalism coupled with outstanding technical ability.

Gavin Thomas

IT Manager, Apax Partners

Frequently Asked Questions

About payroll system customisation with pHRism

Payroll System Implementation is the one-time project of getting a new payroll system live, including initial configuration. Payroll System Customisation is for systems already in place, whether implemented by pHRism or another provider, and covers deeper tailoring, bespoke development and ongoing adjustments as pay structures and your business change.

Yes. Customisation work is not limited to systems pHRism implemented. We regularly customise existing payroll systems configured by other providers or set up in-house.

Complex pay calculations for commission, shift differentials, regional or union-agreed pay variations, and custom payslip formats or statutory reports that fall outside standard vendor configuration.

Some platforms have limited native customisation options. Where that is the case, pHRism builds middleware alongside the platform to deliver the same functionality, rather than treating the platform’s limits as a hard stop.

Most customisation projects run 2-6 weeks depending on scope, though ongoing refinement can continue as an open engagement as your business and pay structures change.

We design customisations to minimise conflict with vendor updates wherever possible, and flag any customisation that could affect upgrade compatibility before building it.

Outgrown your payroll system's standard configuration?

Get a free consultation with pHRism's payroll customisation specialists. We will help you get clarity on scope, cost and next steps.

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  • Submit a comprehensive project proposal with estimates, timelines, team composition, etc
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