UK CIS Deduction Calculator
Calculate CIS deductions on payments to construction subcontractors. Registered subcontractors have 20% deducted, unregistered 30%. Materials costs up to 50% of the gross payment can be excluded from the deduction.
UK CIS Calculator — Construction Industry Scheme Deductions
Free UK Construction Industry Scheme (CIS) calculator. Estimate 20% or 30% CIS deductions on contractor payments with materials exemption.
The Construction Industry Scheme (CIS) requires contractors to deduct 20% (for registered subcontractors) or 30% (for unregistered subcontractors) from payments for construction work. Materials costs up to 50% of the gross payment can be exempted from the deduction. The deducted amounts are paid to HMRC and count as advance payments towards the subcontractor's tax and NIC. Contractors must file monthly CIS returns and provide annual statements to subcontractors.