The system will not be able to do the past month's CPF submission to the CPF Board; therefore, any short contributions will need to be submitted to the CPF Board manually. Please contact the CPF Board for details.
To deduct the short payment CPF from the employee, please create a pay element to deduct in the following month as follows:
Go to the Payroll module and click Pay Element Setup.
Click New and enter Pay Element ID as CPF short payment or CPF Recovery.
Select Deductions and click Next.
Select None of the Above and click Next.
Select Standard Deduction and click Next.
Select the Free method and click Finish.
In the property screen, arrow to the left Subject to Ordinary and Subject to SDF.
In the left panel, arrow over Non-Taxable Code to the right and click Save.
This pay element should only have a Non-Taxable Code property assigned.
Use this pay element and deduct the CPF short contribution from the employee in the following month.
As for the past month's CPF rectification, you can either go to the past period, unlock the record and Reprocess the affected employee (but this will not be tallied with your audit reports). Or you can leave it as it is, wait for IR8A processing during year-end, and rectify the CPF in the IR8A form.