Verify cis (UK)
The process of confirming a subcontractor's status under the Construction Industry Scheme (CIS) to determine if deductions should be made from their payments for tax purposes.
Tax obligation explained
The CIS Deductions Check is a verification step required under UK tax law for contractors paying subcontractors in the construction industry. It ensures compliance with HMRC regulations by confirming whether a subcontractor is registered for gross payment (no deductions) or net payment (deductions at source). This check applies to payments for construction work or related services, including labour, materials, and overheads. Contractors must verify subcontractors before making payments to avoid penalties.
Key legal requirements
- Confirm subcontractor’s CIS registration status via HMRC’s online service or software
- Check if the subcontractor is registered for gross or net payment
- Retain verification records for at least 3 years
- Apply correct deduction rates (20% for registered net payers, 30% for unregistered)
- Report payments and deductions to HMRC monthly
Why this matters
Failing to verify a subcontractor’s CIS status can result in incorrect tax deductions, potential penalties from HMRC, or disputes over payment compliance. Contractors may face fines for non-compliance, while subcontractors could experience cash flow issues due to excessive deductions. Accurate verification ensures legal compliance and smooth financial transactions within the construction industry.
Next step with VetroCheck
Use the CIS Deductions agent if you want a structured review of the relevant documents and supporting record.
Related reading
Compliance note
This glossary content is provided for informational and educational purposes only. It does not constitute formal legal advice, does not create a solicitor-client relationship, and should be checked against current legislation, official guidance, and the facts of the specific case.
At a glance
- Definition
- The process of confirming a subcontractor's status under the Construction Industry Scheme (CIS) to determine if deductions should be made from their payments for tax purposes.
- Term
- Verify cis (UK)
- Category
- Tax
- Published
- Keywords
- UK, Tax, tax