Revenue Online Service (ROS)


Signing with a Revenue Online Service (ROS) Digital Signing Cert is a convenient way of signing CRO submissions because many people have a Digital Signing Cert from interactions with Revenue. It saves the need for you to download our signature page, sign it and then scan it back onto your computer for upload to your submission.

The most recent error messages customers receive when using ROS are detailed below with the solution to fix the issue. Further information on ROS is also detailed here.

Signing Problem Detected

ROS has returned an invalid status for this certificate

Browser not supported

No certificates were found in your local browser

Certificate used is invalid


Signing Problem Detected

The most important thing is that the name on the (ROS) Digital Signing Cert must match the name that the CRO has on file for you. If you are using a sub cert, the name of the company must match the name of the company that the CRO has on the register. If it differs, you will get this error:

Signing Problem Detected.

The following message was returned:

There was a problem matching the name on the cert. with the signer for the submission draft:- 106864.

If you receive this error, ensure the name on the cert is correct, and it is loaded onto your browser.  


ROS has returned an invalid status for this certificate

The tax registration number being used with the ROS certificate does not match.


Browser Not Supported

Supported browsers for the ROS Digital Signing Cert are Chrome, IE 11+, Edge and Firefox.

This error message seems to be related to cookies being blocked on the browser.

In Browser, ensure All Cookies are allowed:

For Chrome:

Settings -> Privacy and Security -> Cookies and other site data -> Allow All Cookies

Reattempt the signing and the issue should be resolved.


No certificates were found in your local browser

Please follow the step by step guide to load your ROS digital certificate:   


Load your digital certificate Windows (


Load your digital certificate MAC (

Certificate used is invalid

When the ROS certificate is downloaded or renewed it is issued with a date and time. This error occurs, if either the date, time or both are different on your computer.

Ensure that the date and time displayed on your computer are correct.

This can also occur if you are in a different time zone:

  • you should wait until the time difference has elapsed
  • temporarily update the date, time or both on your computer to enable login to ROS.

General Information on ROS

Here is some information from Revenue on signing with ROS:

This link provides instructions on how to register with ROS:

Instructions from the Revenue Site on how to create a sub user ROS Cert can be found at:

You must save your ROS cert to your computer. Here are some instructions on how to do that:

You will need to load your Digital Signing Cert into your browser. Here are some instructions on how to do that:

Please ensure you use the same browser to login to CORE as you do for Revenue/ROS.

If you have issues with ROS, please follow this link:

ROS Help Centre: