Hudson CIS Guide Hero

Hudson Guides

Read our CIS Guide for construction companies

Your CIS questions answered

If you can’t find an answer to your question please speak to us. We’re here to provide the answers you need.

Do you have to register, and what will you have to do?

The Construction Industry Scheme (CIS) is a construction specific tax regime that allows HMRC to trace transactions and collect tax. Contractors are required to report who they pay each month and to deduct CIS tax from subcontractor payments. HMRC determine the tax deduction rate, usually 0% for large subcontract firms, 20% for self-employed individuals and small firms, and 30% for individuals and firms not properly registered.

Who does it apply to?

CIS applies to all contractors and subcontractors, individuals and firms, who carry out construction work in the UK.

Are you a contractor or a subcontractor?

If you do work for the ultimate end user you are a contractor, if you do work under a subcontract for a larger contractor you are a subcontractor. Most Hudson clients are both because they carry out specialist subcontract work for a main contractor, but they also pay subcontract firms and self-employed subcontractors.

What work is covered under CIS?

Basically all construction work that includes an on-site labour element is covered by CIS. Things like manufacturing only, delivery only, none operated plant are not covered whereas manufacture and installation would be, the cost of delivery in with that would be, and operated plant would be.

What do you need to do?

Contractors and subcontractors are required to register with HMRC’s Construction Industry Scheme.

Registered contractors must then report transactions to HMRC monthly, check on subcontractor deduction rates (known as verification) and pass any money deducted over to HMRC.

All deductions must be passed on to HMRC.

What happens if you fail to pay?

As the contractor, it’s your responsibility to deduct the right amount of tax from your subcontractors and to pay it over in the correct timescale. If you fail to administer CIS correctly, you may be faced with a fine of up to £3,000 plus any tax loss, and as a business the loss of gross payment status.

I am still not sure, where do I get help?

You are in the right place reading this website. Contact us and we would be happy to advise, carry out a free health check and supply chain due diligence. Our aim is to leave you with a fully compliant system so there are no nasty surprises should you be inspected by HMRC.

Part of what we do will mean that the verifying and reporting of lots of individual subcontractors becomes our responsibility, you just verify and report on Hudson.

Latest Construction News

News

Go-live date revealed for Right-to-Work checks

Right-to-Work checks for the self-employed are to become a legal requirement from October 1, the government has all but confirmed. 

13th May 2026

News

Making Tax Digital hits self-employed

Making Tax Digital for Income Tax is now live. Self-employed tradespeople earning over £50,000 must file quarterly reports by August 2026. Hudson explains what to do.

13th May 2026

News

Referrals to Hudson generate £33,000 in rewards

Hudson Contract paid out over £33,000 in referral rewards last year, including a £6,000 single payment. Earn £50 per subcontractor when you refer a CIS construction business to us.

13th May 2026

News

New super-quango gets £60m to enforce Labour’s ‘Plan to Make Work Pay’

The new Fair Work Agency has been handed a £60m budget, 26% more than its predecessors, to police employers on minimum wage, labour abuse and union access rights. 

13th May 2026

Contact person

To speak to one of our team, call us on 01262 401040

Our experts are on hand to answer your questions and help get you the best solution.
Or request a callback and one of our team will be in touch at a time that suits you.

Request a callback

Please select your role and fill in your details and we'll get you the right person to call you: