Address to report income tax fraud

I'm sure someone started a similar thread a couple of years back? Do a search for it and it might have some answers

Why the need for a physical address if you have access to the internet, you can include attachments

https://www.ros.ie/online-enquiry-web/goodCitizen?execution=e3s1

You can post something but the address is based on the PPS number or Tax Reference Number if a business and no guarantee it will end up where it should. Can search your own number for an address and use that if they are in the same location

https://www.revenue.ie/en/contact-us/customer-service-contact/paye-jobs-and-pensions-helpline.aspx

Alternatively if Dublin based the general address below

Office of the Revenue Commissioners
9/15 Upper O'Connell Street
Dublin 1
D01 F9C1.

Send it to any address you have. Revenue see we'll used to redirecting mail to the right place.