Updating PRSI weeks on ROS (Revenue Online Service) involves modifying the Pay Related Social Insurance (PRSI) contribution weeks recorded with the Irish Revenue Commissioners.
You need to make these updates to correct discrepancies between your payroll records and Revenue's records. This ensures that your social insurance contributions are accurate and that you remain compliant with Irish tax and social welfare regulations.
To do this, complete post payroll corrections by canceling the incorrect payments and issuing a new manual payment with the correct data.