How do I register online for Self Assessment if I'm self-employed?

Watch this video for a step-by-step guide to registering online for Self Assessment if you're self-employed.
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Guidance on registering for Self Assessment for the self-employed:
https://www.gov.uk/register-for-self-...
Sign in or create an online Business Tax Account:
https://www.gov.uk/guidance/sign-in-t...
Guidance on Self Assessment:
https://www.gov.uk/self-assessment-ta...

HMRC is the UK’s tax, payments and customs authority. We collect the money that pays for the UK’s public services and help families and individuals with targeted financial support.

Visit Gov.uk to find out more:
https://www.gov.uk/hmrc

You can use social media for help with general queries relating to any of HMRC’s products and services:

Twitter:   / hmrccustomers  

Facebook:   / hmrc  
0:00 Introduction
0:17 Register for Self Assessment
0:30 What is Self-Employed?
1:15 Government Gateway account
1:46 Sign in using Business Tax Account to register
4:45 Unique Taxpayer Reference
5:12 Register by 5 October
5:25 Submit your tax return
5:35 Help and Support