Locate your nearest Inland Revenue office. Access the HM Revenue & Customs website and click on the "Contact US" link. Click the "Find A Tax Office" tab, then the "Tax Offices for the Self-Employed Inquiries" link. Enter your town, postcode or three-digit office code to detect your local Revenue office.
Go into your local Inland Revenue office. Ask the representative for a CWF1 form, then fill out the form by answering questions pertaining to your self-employment.
Give the application back to the representative at the Inland Revenue office, and they will send you an application to get your CIS card.
Fill out the CIS application, then send it back to your local Inland Revenue office. The office will send you a card once they have verified your self-employment. This can take up to one to three months.
