TAIN Number
Your TAIN number is comprised of 5 digits with a letter at the end.
For example, 12345A
TAIN for agent is Tax Agent Identification Number
TAIN for Solicitor is Transaction Advisory Identification Number
Registration Number
Your Income Tax, Corporation Tax and Employer Tax registration number has 7 digits with one or two letters at the end. For example either 1234567A or 1234567FA. The tax registration number for individuals is usually the same as their PPS Number.
Your VAT number may have 7 digits with one or two letters at the end. For example either 1234567A or 1234567FA. Alternatively, it may have 1 digit followed by 1 letter with 5 more digits and a further letter at the end. For example 2A12345A.
VAT OSS registration numbers are in the format EU123456789 or IM1234567890.
Receiver No. (only for LPT receivers)
This entry is required to be completed by LPT Receivers only.
Your Receiver Number is comprised of 5 digits with a letter at the end.
For example, 12345A.
Tax Type
Select a tax type that you have been registered for recently or in the past.
ROS services are available for Self Assessed taxes (Income Tax and Capital Acquisitions Tax) and business taxes (e.g. VAT) or reporting obligations (e.g. DAC-2) only.
Why are security questions required?
Revenue is including security questions as a means of authenticating ROS users, which is in line with current standard security practice. This will streamline and simplify the ROS login process for customers who cannot access ROS due to lost or expired ROS certificates, or a forgotten password.
Your answers to the security questions you select are recorded on the PROFILE tab on ROS. You are required to select 5 questions from a list of 10 questions.
If, for example, you forget your password and are unable to access ROS, you will be asked to answer 2 randomly selected questions from the 5 chosen questions. The information you provide will be used to confirm your identity and for no other purpose.
ROS users will have 2 attempts to answer the security questions. It is important to remember the answers you select. If you provide incorrect answers we will be unable to authenticate your identity and you will have to either re-register for ROS or contact the ROS Technical Helpdesk.