> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://clipper.crisp.help/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Registering for CIS (Construction Industry Scheme)

Should you operate on a self-employed basis in the construction industry, you will likely need to register for the Construction Industry Scheme (CIS). Under this scheme, we will deduct 20% as a flat rate from your payments and pass this to HMRC. Should you fail to register, we may need to deduct this at a rate of 30%.

If you have not already done so, you will first need to register for self-assessment with HMRC and apply for a UTR number. Our [article](/en/article/applying-for-a-utr-number-for-self-assessment-1h7nra4/) explains how you can do this.

You can register for CIS on the [Government Gateway](https://www.access.service.gov.uk/login/signin/creds), using your Government Gateway ID and password that you used when you registered for self-assessment (or another government service).