How to implement a new HR system

As your organisation evolves and technology advances, your HR software needs to keep pace. A system that once worked well may no longer support your needs now or in the near future. 

Common signs that it might be time to upgrade or replace your HR system include:

• Too many manual processes: Your HR team relies heavily on spreadsheets, duplicate data entry or time-consuming tasks that could be automated.
• Disconnected systems: Your HR, payroll and workforce management systems are siloed, creating more work and increasing the risk of errors.
• Limited reporting capabilities: It's difficult to access accurate, up-to-date workforce data or generate the insights needed to make informed decisions.
• Poor user experience: Employees and managers struggle to navigate the system or complete everyday tasks, leading to frustration and low adoption.
• Security or compliance concerns: Your existing system lacks essential security features, receives limited supplier support or makes it difficult to meet changing regulatory requirements.
• Limited scalability: Your software struggles to accommodate organisational growth, new locations or increasingly complex workforce requirements.
• Outdated technology: Your system lacks the automation, integration or AI-powered capabilities that could help your HR team work more efficiently.

Recognising these challenges doesn't always mean you need to replace your entire system. In some cases, upgrading your existing platform or introducing additional functionality may be enough. The key is to understand where your current software falls short and whether it can support your organisation's future needs. 

Our approach to implementation is built around five clear phases, designed to simplify the process and provide a structured, collaborative journey from initial planning through to go-live and beyond.

Each phase helps ensure your new system is aligned with your organisation's needs and delivers lasting value.

For iTrent and People First customers, our team provides guidance and support throughout each phase. However, these steps can also serve as a practical framework for any organisation planning a new HR system implementation, to ensure no important tasks are overlooked.

1. Discovery: Define your goals and requirements

A successful implementation starts with understanding what you want to achieve. Identify the challenges with your current system, involve key stakeholders and establish clear objectives, whether that means automating more HR tasks, improving data accuracy or increasing employee self-service adoption.

Use these findings to build a business case outlining the expected benefits, costs and potential return on investment (ROI).

Our discovery phase starts before the contract is signed. Through in-depth workshops, we explore your organisation's needs, strategic priorities and success measures to ensure the proposed solution is the right fit.

2. Project Readiness: Create your implementation plan

Research by Capterra proves that early planning makes a real difference when it comes to implementing new software successfully. They found that more than half of successful UK software adopters formally planned their implementation during the buying process, compared with just 18% of disappointed buyers.

As early as you can, create a clear implementation plan covering the project scope, budget, responsibilities, key milestones and potential risks. Set a realistic go-live date, allowing sufficient time for data migration, testing and training.

During this phase we can work with your project team to establish clear responsibilities, agree how the project will be managed and prepare your organisation for the changes ahead.

3. Define & prepare: Prepare your data and configure the system

This phase focuses on preparing your data and setting up the new system around your organisation's requirements.

Review existing HR and payroll records to identify inaccuracies, duplicates and information that no longer needs to be migrated. It's also an opportunity to review current workflows and identify processes that could be simplified or improved.

Rather than leaving you to manage the technical work alone, our implementation specialists handle data migration and system configuration, including agreed workflows and integrations. Your team can focus on validating the results and ensuring everything meets your requirements.

4. Manage & Deliver: Test the system and prepare for launch

Thorough testing helps ensure your new HR system works as expected before it goes live. This includes checking data accuracy, workflows, integrations and access permissions, alongside User Acceptance Testing (UAT) using real-world scenarios.  

We'll guide your team through testing and help resolve any issues identified before launch. Knowledge transfer and training are also important parts of this phase, giving HR teams, managers and employees the confidence to use the new system effectively.

By the end of this stage, your team should be confident that the system meets your requirements and is ready for rollout.

5. Adopt & Reinforce: Go live and drive long-term adoption

Implementation doesn't end when your new HR system goes live. Ongoing support, employee feedback and regular performance reviews are essential to ensuring the system delivers lasting value.

Our support continues well beyond launch, with extended assistance and regular adoption reviews to help your teams get the most from their new system. We'll work with you to identify any challenges, support employee adoption and find opportunities for further improvement.

Continue measuring success against your original objectives, whether that's employee adoption, time saved, data accuracy or improvements to everyday HR processes. 

While some challenges are inevitable, minimising disruption during implementation is key to successful software adoption. Capterra found a strong link between implementation issues and buyer regret, with 92% of UK software buyers who regretted their purchase also experiencing disruption during implementation.

Understanding the most common pitfalls can help you avoid unnecessary setbacks and get the most from your investment. These include:

Unclear ownership or insufficient resources

Without clearly defined responsibilities and sufficient resources, decisions can be delayed and important tasks overlooked.  

Establish clear accountability and ensure your team has enough time to support the implementation alongside their day-to-day responsibilities.

Migrating poor-quality data

Inaccurate, outdated or duplicate records can create problems in your new system. Cleanse and validate your data before migration to avoid carrying existing issues across.

Recreating inefficient legacy processes

Replicating outdated workflows can limit the benefits of your new software. Use implementation as an opportunity to simplify processes, eliminate unnecessary manual tasks and improve how your HR team works.

Insufficient testing or a rushed go-live

Rushing through testing can lead to errors and disruption after launch. Allow enough time to test real-world scenarios, resolve issues and confirm the system is ready before going live.

Treating training and adoption as one-off activities

Employee adoption takes time, and initial training may not be enough. Provide ongoing support, gather feedback and monitor how employees use the system to identify where additional guidance is needed. 

Implementing a new HR system doesn't have to mean managing every technical detail yourself. With over 40 years of experience in HR and payroll, MHR combines specialist expertise with a collaborative approach to implementation.

Whether you're implementing People First or iTrent, our team will work closely with yours to manage data migration and system configuration, provide practical guidance and support your people through the change.

Our customer stories demonstrate the value of this approach:

Shoezone: Delivering under pressure

Facing a tight four-month implementation deadline, Shoezone worked with MHR to complete the project on time, ensuring employees were paid as planned.

"The HR and payroll consultants were brilliant at working with us in the short timeframe that we had in order to deliver our payroll system. Working with the blueprints from MHR were absolutely fantastic, really easy to use and really helped us through this process."

—Eleanor Mcgeever, HR Manager, Shoezone

Read the full case study here.

British Gymnastics: Putting people at the heart of the process

Prioritising employee experience, British Gymnastics benefited from close collaboration with MHR throughout its People First implementation, including structured sessions before launch and continued consultancy afterwards.

"The support from MHR with the implementation of People First has been really strong. We wanted a new system with the user experience and employee journey in mind. We chose People First."

—Sarah Ashley-Ruff, Head of People and Shared Service, British Gymnastics

Read the full case study here.

Ready to make the switch? Book a demo to get a closer look at our platform and ask our team about how we can support your HR system implementation. 

How long does it take to implement a new HR system?

A standard implementation will typically take a few months, although larger and more complex projects can take longer. It depends on factors like what system you are migrating to/from, how big your organisation is, as well as any integrations involved.  

As we highlighted above, MHR were able to get Shoezone up and running on their new HR and payroll system in just four months.  

Working with your software provider to establish a realistic timeline and clear milestones can help keep the project on track.

Is it easy to implement a new HR system?

Again, it depends on how large and complex your organisation is, as well as which system you are moving to/from. Larger HCM platforms with lots of integrations may require dedicated internal specialists or third-party consultants to manage the configuration, data migration and ongoing administration.

With People First, MHR's implementation specialists guide you through the process, managing technical activities and providing the support needed for a smooth transition.

Who should be involved in implementing a new HR system?

When it comes to finding and implementing a new HR system, include representatives from HR, payroll, IT and finance, alongside senior leaders who can provide direction and resources.

It can also be valuable to get insights from employees and managers who will use the system day to day. Their feedback will help to identify potential challenges with your current set up, and ensure the new system meets their needs.

How can you measure the success of a new HR system?

Success should be measured against the objectives established at the beginning of the project. Key indicators include employee adoption rates, data and payroll accuracy, time saved on administrative tasks and employee feedback.  

Regularly reviewing these measures after go-live helps identify areas for improvement and ensure your new HR system continues to deliver value.