Tax

Understanding CIS: A Simple Guide for Subcontractors

TradePages Team05 June 2026

Understanding CIS

The Construction Industry Scheme (CIS) is a tax deduction scheme that covers most construction work in the UK.

Who Does It Apply To?

Contractors and subcontractors working in the construction industry.

What Are the Deduction Rates?

  • 20% for registered subcontractors
  • 30% for unregistered subcontractors
  • 0% for subcontractors with gross payment status

How to Register

You can register for CIS through HMRC online.

Key Things to Remember

  • Always verify your subcontractors
  • Submit monthly returns on time
  • Keep accurate records
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