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Installing your ROS digital certificate (agents)

PAYE Modernisation has introduced two new processes - the automated retrieval of Revenue Payroll Notifications for each of your employees from Revenue and the submission of your payroll data each payroll run to Revenue. For this two-way communication to take place between Thesaurus Payroll Manager and Revenue’s systems, your ROS digital certificate will be used. If you are a bureau user and hold an agent certificate, your agent certificate will need to be added to the software before you can commence processing payroll for any of your clients.

To add an Agent Certificate into the software: Open your Thesaurus Payroll software and press ‘Cancel’ on the ‘Open Company’ screen Next, go to ‘File > Add/Renew Digital Certificate’, followed by Agent Cert (default) ‘Click here to select the agent cert’ and browse to the location of where your agent digital certificate is stored. Please note: The file extension of your digital certificate will be either .p12 or .bac.

If you are unable to locate your digital certificate, a search can be performed on your machine by searching these terms in the search bar. After selecting your agent certificate, you will be prompted to enter your associated certificate password, also enter your Agent TAIN. Click ‘OK’ when complete.

The software will now confirm that your agent certificate has been successfully installed. You will now be able to retrieve RPNs and send payroll submissions for all employer files associated with that agent certificate. In the event you need to add an additional agent cert into the software, this can be done by going to ‘File > Add/Renew Digital Certificate’, followed by Additional Agent Certs. repeat the same process as if adding your first agent certificate.

By default, each employer file will use the default agent certificate you have added to the software for retrieving RPNs and sending payroll submissions to Revenue. Therefore link an employer file to an additional agent certificate you have added. open the employer file in question and go to 'File > Add/Renew Digital Certificate, followed by ‘link this employer with an additional agent cert’. Select the associated Agent T A I N from the drop-down menu and press ‘click to link’ If you have an employer file set up which is not linked to any agent certificate but for whom you have an employer certificate instead, this employer certificate can be installed and will be used by the software in preference to any agent certificate.

Open the employer file in question, go to ‘File > Add/Renew Digital Certificate’, followed by Employer Cert. Click ‘Yes’ to confirm you wish to install an employer certificate instead for this employer. Press, ‘Click here to select the digital cert for this employer’ and browse to the location of where your digital certificate is kept on your machine. After selecting your digital certificate, you will be prompted to enter the associated certificate password. Click ‘OK’ when complete. The software will now confirm that the employer's digital certificate has been successfully installed.

Video Tutorials

Order using your Bright ID

Creating a new Bright ID

Using an existing Bright ID

Getting Started


Importing from last year (existing users)

Installing your ROS digital certificate (agents)

Installing your ROS digital certificate (employers)

Setting up employees using an RPN (new users)

Your Pay Period Process

Step 1: Retrieving your employee RPNs

Step 2: Processing your payroll

Step 3: Finalising your pay period

Step 4: Submitting your pay data to Revenue

Step 5: Distributing your payslips and paying your employees

Step 6: Paying your Employees

Paying employees directly with Modulr

Additional Processes

Backing up your payroll data

Corporate gift card orders with Thesaurus

Processing a leaver

Processing a starter

Surf Accounts API Integration

Thesaurus Connect

How to invite employees to use self-service

How to Register


PAYE Modernisation in Thesaurus Payroll Manager

Employee Smartphone App Demo

Promotional Videos

Connect for Employers

Connect for Bureaus

Connect for Employees

Employee Smartphone App

Bright Contracts

PAYE Modernisation with Thesaurus


For more information visit

2022 training partnership webinar

PAYE Modernisation in BrightPay