Inland Revenue Self-Assessment Helpline
The Self Assessment Helpline is a national telephone service providing help, advice and information on a wide range of Self Assessment enquiries, to taxpayers, agents and employers.
Address:
Self Assessment, PO Box 4000, Cardiff, CF14 8HR
Telephone number:
03002003310
Calls received by the Helpline are routed to the first available member of staff. They are totally committed to providing a consistently high level of service via a customer focused approach which provides clear, understandable and accurate assistance to all callers, from one point of contact.
The staff answering calls require a wide range of knowledge, not only about Self Assessment but taxation generally. Therefore they are trained to a very high standard to enable them to answer enquiries.
Additional Contact Information
03002003319
Last modified on 30 October 2025
