How To Register for Self Assessment with HMRC?

Self Assessment is a way through which you declare the income and gain for the tax year and pay your tax. If you are doing self assessment for the first time or haven’t filed for last year. Then you will need to register for Self Assessment with HMRC.

How to Register for Self Assessment with HMRC if you are self employed?

In case you have to send a tax return and have not sent one last year then you will have to register for both Self Assessment and Class 2 National Insurance.

Registering depends on whether you have sent a tax return earlier.

If you are Filing Taxes for the first time

  • Using your business tax account, sign up for Self Assessment and Class 2 National Insurance. To sign in, you’ll need a Government Gateway user ID and password. If you do not already have a user ID for a company tax account, you can create one.
  • Within 10 days (21 if you are overseas), you will get a letter containing your Unique Taxpayer Reference (UTR) number. To file a return, you’ll need your UTR.
  • You’ll get a letter or an email reminding you to file your Self Assessment tax return before the deadline.

If you have filed tax previously

You have previously submitted a return but did not file one last year, you must re-register online (form CWF1) for Self Assessment and Class 2 National Insurance.

You’ll need your 10-digit Unique Taxpayer Reference (UTR) from your previous registration. If you don’t know what your UTR is, you can look it up.

You’ll get a letter or an email reminding you to file your Self Assessment tax return before the deadline.

You can use the above steps if you have not used the online services. If you do not have a business tax account, you can set it up using the HMRC’s site as an organisation.

Register for Self Assessment with HMRC by Post

Fill out a form on-screen, print it, and mail it to HMRC to register for Self Assessment and Class 2 National Insurance. You must have all of your information ready since you cannot save a partially filled form.

Following your registration, you will get a letter with your Unique Taxpayer Reference (UTR) number within 10 working days (21 if you are overseas).

You’ll get a letter reminding you to file your Self Assessment tax return before the deadline.

Register for Self Assessment with HMRC if you’re not self employed

If you haven’t send a tax return in the previous year. You will have to register for Slef Assessment.

Whereas if you have filed before you can sign in to your existing account.

If you haven’t filed online before

Fill out form SA1 to register for Self Assessment. You have two options:

  • Register online
  • Or you can fill in, print it out and post the form

Following registration, you will get your Unique Taxpayer Reference (UTR) number in the mail within 10 working days (21 if you are overseas).

If you have registered online sign in to your personal tax account to activate your Self Assessment.

If you have registered using the paper form. You will have to set up your personal tax account and sign up for Self Assessment. You will require your UTR number to do this.

Within 7 working days (21 if you live overseas), you will get an activation code for your new account. Sign in after receiving the code to activate your Self Assessment.

Once your account has been activated, you can file your tax return at any time before the deadline.

Why am I getting error when I register for Self Assessment?

Inquire with HMRC’s digital assistant regarding Self Assessment.

If the digital assistant is unable to assist you, you may request to talk with an HMRC consultant if one is available.

While calling HMRC, you need to be aware to use short phrases. Since this hotline employs speech recognition technologies, you will be asked why you have called HMRC. Try to respond with brief sentences and words, such as:

  • ‘change my address’
  • ‘question about penalty’
  • ‘late tax return’

You can reach out to HMRC by:

Telephone:
0300 200 3310

Textphone:
0300 200 3319

Outside UK:
+44 161 931 9070

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