HMRC may require you to complete a self assessment tax return for various reasons, from being self employed to having job expenses when you are employed under PAYE.
On this page you will find information about:
Self Assessment Payment Helpline Phone Numbers
The Self Assessment payment helpline is specifically for people who cannot pay their tax bill on time.
Self Assessment Payment Helpline:
0845 366 1204
Office opening times are:
Monday to Friday, 8.00 am to 8.00 pm
Saturday, 8.00 am to 4.00 pm
Closed Christmas Day, Boxing Day and New Year’s Day and Bank Holidays.
The HMRC Self Assessment main postal address is:
HM Revenue & Customs
PO Box 4000
For further Tax Contacts, please follow the links below:
Self Employed includes:
Recently become Self Employed HMRC Helplines
Construction Industry Scheme (CIS) Helpline
Capital Gains Tax Helpline for Self Employed
National Insurance Self-Employed Helpline
National Insurance includes:
Deficiency, Registrations & Classifications Helplines
Pension Schemes includes:
Contracted Out Pension Schemes
Online Services Helplines
More Tax Phone Numbers includes:
HMRC Capital Gains Tax
HMRC Employers Helplines
New Employers Helplines
Excise & Customs Helplines
Corporation Tax Helplines
ISA & Savings Helplines
If you are new to self assessment and need to register for online services or have completed a tax return for many years and have a query, you can find the phone numbers you need to contact HMRC here.