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Submitting a P45 Part 3 to ROS

This utility facilitates the submission of new employees online through ROS. The new employee must be entered in the Add/Amend employees section before proceeding. For assistance with this click here


Important Note


All P45 Part 3 submissions must include a valid employee PPS number. Revenue and ROS will not accept these submissions without a PPSN.



Submitting a P45 Part 3 to ROS


On commencement of employment, an employee who was previously employed during the year, will give the new employer Part 3 of the P45 issued to them by the previous employer.  This P45 Part 3 should be submitted to Revenue via ROS to notify Revenue of the employee's commencement of employment with the new employer. This will result in Revenue issuing a Tax Credit Certificate instruction (P2C via ROS) to the new employer.

The P45 Part 3 details can be entered in Thesaurus Payroll Manager which will then facilitate the preparation of an electronic P45P3 for submission to Revenue via ROS. 

To access this utility, go to ROS > P46 and P45 (Part 3) > P45 (Part 3) 

  • Select the Employee

  • Enter the Registered Number of previous employer

  • Enter Date of leaving and any LPT deducted

  • Click Prepare File

  • Click Save

  • The P45 file will save as the employee's PPS number - this can be renamed if you wish

  • The P45 Part 3 file is now ready to be uploaded to ROS

Uploading the P45 Part 3 to ROS

To upload the P45 Part 3, go to > Login to ROS
  • Under My Services - Select Upload Form(s) Completed Off-line section

  • Select New Employee

  • Click Upload Return


  • Browse to your saved P45 Part 3 file

  • Click Add File(s)


  • Enter your Password

  • Click Upload File(s)
Once successfully submitted, confirmation will display on screen accompanied by a confirmation number for the submission.

Need help? Support is available at 01 8352074 or

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