Before you start a supplementary payroll run, it’s essential to ensure that all key tasks from the main payroll run are completed and that required submissions (RTI or PMOD) have been accepted. Failing to complete these steps may prevent you from processing a supplementary run, especially after the tax year end cleardown.
What you need to know
Supplementary payroll runs are only available within the latest closed period of the same tax year. This means you cannot run a supplementary payroll after the year-end cleardown (i.e December for Ireland and March for the UK) until the first payroll of the new tax year has been processed.
Additionally, separate RTI/PMOD submissions are required for each main and supplementary payroll run. Before processing any new main or supplementary payroll, you need to ensure that all FPS (Full Payment Submission) or PMOD submissions for the previous month's payrolls have been successfully accepted.
What you need to complete
Check the following tasks are completed for the main payroll before a supplementary run.
Print payslips
Bank file
Complete and submit RTI/PMOD.
Check that all RTI/PMOD files for the main run have been successfully submitted and accepted.
Enable pay group into supplementary payroll mode
After completing the main payroll run and all associated tasks, you can proceed to run the supplementary payroll. First, you’ll need to place the pay group into supplementary payroll mode by following the steps below in portal.
Click Settings then under Codes, click Pay Groups.
From the Pay Group Code drop-down menu, select the relevant pay code.
Enable the Supplementary Mode toggle.
A confirmation message appears, click Yes.
Click Save.
📌Note: The system returns the pay group to the previous payroll period and displays an orange Supplementary indicator in the Mode column on the Manage Payroll screen, indicating that the pay group is in Supplementary Mode.