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CWF1

You fill in a CWF1 form to tell HMRC that you are self-employed and need to do a Self Assessment. You can use it both to register or to re-register as a sole trader.

After you’ve submitted your CWF1 form, you’ll be given a Unique Taxpayer Reference (UTR) number, which you use to pay your tax return.

What’s a CWF1 form?

You’ll have to fill in details about your:

  • Name
  • Address
  • Business address
  • National Insurance number
  • Business details

Click here to fill in your CWF1 form with HMRC.

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Let us sort your Self Assessment online. £119, all in.

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Answer a few simple questions

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Once you’ve signed off your return, your TaxScouts accountant will submit your return with HMRC for you.

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