With your help, we'll make sure people who are not registered for tax have nowhere to hide.
Use this website to notify HM Revenue & Customs and we'll do something about it. You won't need to submit your name and address.
Contact us
Tel: 0800 788 887 (opening hours Monday to Friday 8am to 8pm, Saturday and Sunday 8am to 4pm)
Freepost address:
HMRC Intelligence,
Centre for Research and Intelligence,
Freepost,
NAT 22785,
Cardiff,
CF14 5GX
Textphone: 0845 915 3296 (for people with a hearing or speech impairment)
If you are a Welsh speaker then please call 0845 302 1489 (opening hours 8:30am - 5pm)
Fax number - 0800 7830879
