Payroll Parallel Testing Checklist

Payroll parallel testing provides assurance that your employees’ pay is being calculated correctly before you switch your payroll system. During parallel testing, the old payroll system (legacy payroll system) is run alongside your new payroll software. This identifies any issues or errors before your new software goes live.

The process of parallel testing involves reconciling the net pay of both your new and legacy payroll systems. If the net pay is the same in both systems, this ensures that all of the calculations in your new software are working correctly and it’s ready to go live. For some, this can be a lengthy and manual process. Yet here at Global HRIS, we have access to a number of tools to simplify and speed up the testing process.

Switching to a new payroll system needs to be a seamless transition. So we work with you to understand, plan and execute a testing solution that’s tailored to your businesses’ individual needs.

Contact us today to understand the payroll services we offer.

Payroll parallel testing is the most critical phase in any payroll transformation and can be a complex process. So here we share our top five dos and don’ts for parallel testing.


Plan ahead

It’s important to cover all bases when you change your payroll, so your go-live goes as smooth as possible. You should create a thorough plan before you test, detailing the time and activities required for the parallel runs.

At Global HRIS, our team of experts will create a detailed plan for your payroll transition and keep you updated throughout the testing period. Whether you’ve chosen a managed payroll service or a new in-house system, our dedicated consultants will simplify the process for you.


Cover all scenarios

Payroll is a crucial area of your business, so there’s no room for error. Parallel testing limits you to transactions that take place within a chosen pay cycle. To capture less frequent transactions, we recommend you run additional test scenarios. This avoids testing these for the first time on live payroll. We can build these into the parallel test phase or add these into a User Acceptance Testing Phase.

 We’re able to run different types of testing, so your payroll transition is simple, quick and efficient.


Choose the right pay cycle

It’s important to select an appropriate pay cycle when testing your payroll. Month-end or critical periods for your business are best-suited in payroll parallel testing.

With our support, you can be confident that the cycles chosen ensure your go-live goes as smooth as possible.


Categorise any discrepancies

Once the payroll calculation has been run for the new system, the results should be compared, line by line.

The results from the tests don’t need to be an exact match, as long as you address any differences. You should categorise, explain and correct any discrepancies found between the legacy system and your new payroll software.


Don’t test too soon

It’s important to include everything that you know will impact your business’s payroll during the testing period. Testing should confirm your payroll system is correct, rather than uncovering major issues. So it’s important to begin only when you’re confident that you’ve outlined exactly what you’re testing, along with your objectives.


We provide a number of testing-related services at Global HRIS. We are dedicated to simplifying your payroll move, whatever your business needs.

Find out more about how we can support your payroll transition.

Or, give us a call on 0161 900 8227 today.


Download a copy of our Payroll Parallel Testing Checklist

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