Contact HMRC - GOV.UK
...Contact details, webchat and helplines for enquiries with HMRC on tax, Self Assessment, Child Benefit or tax credits (including Welsh language services)....
https://www.gov.uk/contact-hmrc
HMRC: Ask HMRC online - GOV.UK
...Digital (virtual) assistant chat (chatbot) and human HMRC adviser webchat....
https://www.gov.uk/algorithmic-transparency-records/hmrc-ask-hmrc-online
Income Tax: enquiries - GOV.UK
...Contact HMRC for help with questions about PAYE and Income Tax, including coding notices and Marriage Allowance and for advice on savings (including ISAs) and claiming tax back on interest....
https://www.gov.uk/find-hmrc-contacts/income-tax-enquiries
Self Assessment: general enquiries - GOV.UK
...Contact HMRC for advice on Self Assessment and to change your personal details. Find guidance on Self Assessment tax returns. The quickest way to get help is to chat with HMRC online. You can......
https://www.gov.uk/find-hmrc-contacts/self-assessment-general-enquiries
Agent Dedicated Line: Self Assessment or PAYE for individuals
...Call HMRC about Self Assessment or PAYE if you?re formally authorised to act as an agent or tax adviser for your client. Do not phone the helpline to: Telephone: 0300 200 3311. Opening times:......
https://www.gov.uk/find-hmrc-contacts/agent-dedicated-line-self-assessment-or-paye-for-individuals
VAT: general enquiries - GOV.UK
...Contact HMRC to report changes to your business or ask questions about VAT (including Making Tax Digital for VAT) and Fulfilment House Due Diligence Scheme (FHDDS). Ask HMRC?s digital assistant......
https://www.gov.uk/find-hmrc-contacts/vat-general-enquiries
Self Assessment: online technical support - GOV.UK
...Another way to find answers to your questions is to chat with HMRC online. Call HMRC to get support with: You can also call if you need extra support because your health condition, disability......
https://www.gov.uk/find-hmrc-contacts/self-assessment-online-technical-support
Extra Support Team - GOV.UK
...Ask HMRC for help if you need extra support because of your condition or circumstances, including if you have difficulty using the telephone or need information in another format. If you find it......
https://www.gov.uk/find-hmrc-contacts/extra-support-team
Online chat opening hours - Community Forum - GOV.UK
...Hello, I'm trying to speak to a human being about self-assessment through the HMRC chat tool (https://www.tax.service.gov.uk/ask-hmrc/chat/self-assessment). This morning......
https://community.hmrc.gov.uk/customerforums/sa/94f07b78-2840-ef11-a81d-002248c8eb60
HMRC Online Chat - Community Forum - GOV.UK
...To allow us to do this, contact us by webchat or phone via Self Assessment: general enquiries. Sorry?.. but 21 hours and my question isn?t even ?posted? yet? Hi, I am registered for self assessment......
https://community-origin.hmrc.gov.uk/customerforums/sa/e5a9407a-d823-ef11-a81c-002248c5d744