Here’s everything you need to know about registering for Self Assessment Tax

Let’s face it - nobody starts a business because they want to learn how to complete a tax return.

BUT if you’re in Business it’s something you need to be aware of - even if you use an Accountant to help

Here’s some FAQs on Self Assessment Registration:

Do I need to register for Self Assessment?

You might need to register if you’re self-employed, earned untaxed income (like rental income or foreign income) received certain benefits exceeding specific thresholds, or if HMRC requests it.


When do I need to register?

Register by October 5th if you need to file a return for the first time.


What do I need to register?

You’ll need your National Insurance number and contact details.


How do I register?

You can register online through the Government Gateway: gov.uk/register-for-self-assessment.


What happens after I register?

You’ll receive a Unique Taxpayer Reference (UTR) usually within 10 days.


I filed a Self Assessment return last year, do I need to register again?

No, you don’t need to register again. You can simply reactivate your existing account to file again.


I’m waiting for my UTR, what do I do?

You can check the estimated arrival date on the HMRC website: gov.uk/register-for-self-assessment.


I can’t register online, what should I do?

Contact HMRC through their online services helpdesk: gov.uk/government/organisations/hm-revenue-customs/contact/online-services-helpdesk.

You can also call them on 0300 200 3300.


I need help completing the registration process, what are my options?

HMRC offers help and guidance on their website: gov.uk/register-for-self-assessment.

You can also contact their Self Assessment helpline: 0300 200 3300.


Where can I find more information about Self Assessment?

HMRC’s Self Assessment website: gov.uk/self-assessment-tax-returns.


Remember: This FAQ is for informational purposes only and does not constitute professional advice. Please consult with a tax advisor or accountant for specific guidance.


Everything you need to know about Self Assessment Tax Return registration