CIS contractors and CIS sub-contractors
Contents |
[edit] Introduction
The Construction Industry Scheme (CIS) sets out a series of rules for how contractors should make payments to sub-contractors. The scheme was introduced to try and prevent the loss of revenue to the exchequer arising from payments between contractors not being properly accounted for for tax purposes
For the purposes of the CIS the terms contractors and sub-contractors have very specific meanings. These are terms that are widely used within the building industry but for the purposes of the CIS it is important that the specific meanings are clearly understood as they have direct relevance to the manner in which payments between parties may be made, and the associated tax treatment of those payments.
In this article they are referred to CIS contractors and CIS sub-contractors.
[edit] CIS contractors
Under the CIS there are two groups of contractors:
- Mainstream contractors
- Deemed contractors
[edit] Mainstream contractors
These include:
- Any businesses that undertake construction operations and pay others for work carried out.
- Any property developers or speculative builders erecting and altering buildings in order to make a profit.
- Gang-leaders organising construction labour (although gang-leaders may also be a CIS sub-ontractors)
- Foreign businesses carrying out construction work in the UK.
[edit] Deemed contractors
The CIS also identifies entities that are deemed to be contractors. These may be public bodies or other concerns who carry out or commission construction activities. Such entities are deemed to be contractors in the following circumstances:
- Their average annual expenditure on construction operations in the period of three years ending on the last accounting date exceeds £1 million.
- If they have not been trading for the whole of the last three years they will be deemed to be contractors if their total expenditure on construction activities for that part of the three year period during which they have traded exceeds £3 million.
Any concern that is deemed to be a contractor because one of the above conditions is met will continue to be treated as such until construction expenditure reduces to less than £1 million for three successive years.
[edit] CIS sub-contractors
This term describes a person or body that has agreed to carry out construction operations for a contractor. This may involve the CIS sub-ontractor:
- Carrying out the operations themselves, or;
- Having the work done by other CIS sub-contractors.
Such CIS sub-contractors may be companies, self-employed persons, public bodies, foreign businesses or gang-leaders. Persons may be employed by agencies to undertake construction work in which case the agency, howsoever constituted, shall be treated as a CIS sub-contractor.
NB: In June 2014, the government launched a consultation into ways to improve the CIS by reducing the administrative burden it imposes. Some people within the industry have called for the scheme to be scrapped. Ref. Construction Enquirer Calls grow to scrap CIS tax scheme 11 July 2014.
This page was created by:--Martinc 17:59, 19 June 2013 (BST)
[edit] Related articles on Designing Buildings Wiki:
- Construction Industry Scheme.
- Construction Industry Scheme or IR35?
- Contractor.
- Sole trader.
- Sub-contractor.
- Trade contractor.
- Types of contractor.
- Works contractor.
[edit] External references:
- HMRC: Construction Industry Scheme.
- Cantor Atkin: CIS Scheme assistance.
Featured articles and news
A now architectural practice looks back at its concept project for a sustainable oceanic settlement 25 years on.
Copyright and Artificial Intelligence
Government report and back track on copyright opt out for AI training but no clear preferred alternative as yet.
Embedding AI tools into architectural education
Beyond the render: LMU share how student led research is shaping the future of visualisation workflows.
Why document control still fails UK construction projects
A Chartered Quantity Surveyor explains what needs to change and how.
Inspiration for a new 2026 wave of Irish construction professionals.
New planning reforms and Warm Homes Bill
Take centre stage at UK Construction Week London.
A brief run down of changes intentions from April in an onwards.
Reslating an ancient water mill
A rare opportunity to record, study and repair early vernacular roofs.
CIOB Apprentice of the Year 2025/26
Construction apprentice from Lincoln Mia Owen wins this years title.
Insulation solutions with less waste for a circular economy
Rob Firman, Technical and Specification Manager, Polyfoam XPS explains.
Recycled waste plastic in construction
Hierarchy, prevention to disposal, plastic types and approaches.
UK Net Zero Carbon Buildings Standard V1 published
Free-to-access technical standard to enable robust proof of a decarbonising built environment.
Prostate Cancer Awareness Month
Why talking about prostate cancer matters in construction.
The Architectural Technology podcast: Where it's AT
Catch up for free, subscribe and share with your network.
The Association of Consultant Architects recap
A reintroduction and recap of ACA President; Patrick Inglis' Autumn update.
The Home Energy Model and its wrappers
From SAP to HEM, EPC for MEES and FHS assessment wrappers.
Future Homes Standard Essentials launched
Future Homes Hub launches new campaign to help sector prepare for the implementation of new building standards.
Building Safety recap February, 2026
Our regular run-down of key building safety related events of the month.























