Construction Industry Scheme (CIS)


The Construction Sector System (CIS) is carried out by HM Earnings & Customs (HMRC). It regulates settlements from specialists to subcontractors in the building market.

How CIS works

All structure professionals and also subcontractors need to register with the scheme.

Who is a CIS contractor?– Any individual who makes use of subcontractors for construction job needs to register as a CIS specialist with HMRC.

Who is a CIS subcontractor?– You’re a CIS subcontractor if you’re independent or a business and agree to do building work for a contractor. You should sign up with CIS.

If you’re a contractor and subcontractor, you have to sign up as both.

Work covered by CIS

As a basic guideline, the Building and construction Market System (CIS) consists of almost any work that is done:.

to a permanent building.

to a momentary structure (eg scaffolding).

in civil engineering (eg bridges).

A few of the kinds of work covered by the plan consist of work like:.

site preparation.

general construction – bricklaying, roofing, plastering and so on.

alterations and extensions.

repairs and refurbishment.


dismantling work.


Contractor regular monthly returns as well as document keeping under CIS.

As a professional under CIS you will certainly require to make regular monthly returns every month. Doing this online is quick and also simple. If you make any errors HMRC can help you arrange them out.

Verifying subcontractors

Before you validate a subcontractor it is important to see to it that the contract is not one of employment. If the contract’s a ‘ agreement of employment’ then they’re an worker as well as in PAYE not CIS.

When paying a subcontractor you will require to ‘ validate’ them with HMRC to inspect that they are signed up under cis rebate and also what their payment condition is. Subcontractors can be validated using HMRC’s CIS online solutions or calling HMRC’s CIS Helpline.

You will require the following info about the subcontractor:.

Name, or the name of their organization or company.


Business enrollment number or National Insurance coverage number if independent.

HMRC will certainly check to verify whether the subcontractor’s registered, inform you exactly how to pay them and offer you a verification referral number. You’ll obtain a somewhat different sort of referral number if HMRC can’t confirm the subcontractor’s registered with them. It is very important you keep a note of it.

When HMRC verify a subcontractor, they’ll inform you exactly how to pay them. This could be:.

Gross– suggesting you do not make any type of deductions.

Standard price– making deductions at 20%.

Greater price– making reductions at 30%, because the subcontractor isn’t registered or couldn’t be confirmed for some other factor.

If you do not require to confirm a subcontractor if you’ve included them on a previous CIS return. HMRC will certainly allow you understand if they change a subcontractor’s repayment status.