Skip to main content

    April 2026: New National Minimum Wage rates now in effect. Check your pay →

    SiteKiln — Your rights on site. In plain English.
    SiteKiln

    Is the right amount being taken off your CIS invoices?

    For subbies and small firms invoicing main contractors. Check you're on the correct CIS deduction rate for your status and verification.

    Sound familiar?

    • “The main contractor is taking 30% off my invoices. I've got no idea if that's right.”
    • “I registered for CIS months ago and I still don't know if I'm on standard or gross.”
    • “My UTR's on the invoice but they're saying I'm not verified.”
    • “I've been on 20% for years. Can I get to gross status?”

    What this tool does

    Tells you the CIS deduction rate that should apply to your invoice based on your registration status and whether the main contractor has verified you. It explains why, and what changes the rate.

    Question 1 of 3

    Are you registered for CIS with HMRC?

    What the law actually says

    • Construction Industry Scheme deductions come in three rates: 20% (registered and verified), 30% (not verified or not registered), and 0% (gross payment status).
    • The main contractor must verify your status with HMRC before your first invoice. If they don't, they must deduct at 30%.
    • To move to gross status, you have to pass HMRC's business, turnover and compliance tests. We've got a guide on how to apply.

    What to do next

    Get monthly SiteKiln updates?

    One email a month. Rate changes, new tools, guide updates relevant to you. No spam, unsubscribe any time.

    Important disclaimer

    SiteKiln provides general guidance only. Nothing on this site — including our guides, tools, templates and document hub — is legal, tax, financial or professional advice.

    Every situation is different. Laws, regulations and industry standards change. You should always check with a qualified professional before making decisions based on what you read here.

    We do our best to keep information accurate and up to date, but we cannot guarantee it is complete, correct or current. SiteKiln accepts no liability for actions taken based on the content of this site.