Personal tax – form

Self Assessment and National Insurance contributions: register if you're a self-employed sole trader (CWF1)

Use form CWF1 to register as a self-employed sole trader.



Only use these forms if you can’t use the online services.

Before you start

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You’ll need to fill in the form fully before you can print it. You can’t save a partly completed form so we suggest you gather all your information together before you begin to fill it in.

Tax agents and advisers: authorising your agent (64-8)
Use form 64-8 to authorise HM Revenue and Customs to communicate with an accountant, tax agent or adviser acting on your behalf.