Sign in to the Construction Industry Scheme (CIS) online service

CIS contractors can use this service to:

  • file monthly returns
  • verify a subcontractor

Online services may be slow during busy times. Check if there are any problems with this service.

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Before you start

To sign in and use this service, you’ll need:

  • the Government Gateway user ID and password for your business tax account
  • to have added CIS to your business tax account

If you have not added CIS to your account, sign in on the HM Revenue and Customs (HMRC) services page before doing this. You’ll be able to create sign in details if you do not have a user ID for a business tax account.

If you have problems signing in

You can contact HMRC online services technical support.