In the UK, small builders operating in the construction industry are mandated to follow the Construction Industry Scheme (CIS). This scheme sets out the rules for how subcontractors are paid for their work. As a small builder, understanding and maintaining CIS compliance is crucial to avoid penalties and ensure a smooth business operation.
What is CIS Compliance?
The CIS regulates payments from contractors to subcontractors involved in construction work. It requires that contractors deduct money from a subcontractor’s payments and pass it to HM Revenue and Customs (HMRC). These deductions count as advance payments towards the subcontractor’s tax and National Insurance.
Who Needs to Register for CIS?
Both contractors and subcontractors need to register for CIS. For contractors, this includes all businesses that spend a certain amount on construction operations in a tax year. For subcontractors, it includes those who do construction work for a contractor.
Complying with CIS: Key Tips
Contractors need to verify subcontractors with HMRC, keep records of payments and deductions, and file monthly returns. For subcontractors, the crucial aspects are registering for the scheme, keeping track of deductions, and considering these in their Self-Assessment tax return. Here are some tips for maintaining CIS compliance:
- Verification Process: Contractors must verify their subcontractors with HMRC before they can start their work. This process involves confirming the subcontractor’s registration for CIS and establishing the deduction rate.
- Record Keeping: Both contractors and subcontractors should keep detailed records of their transactions. This includes contracts, invoices, payment and deduction statements.
- Filing Returns: Contractors must submit a monthly return to HMRC, declaring the payments made to subcontractors and deductions taken.
Failure to comply with CIS can lead to penalties, from fines for late filing of monthly returns to more severe penalties for non-compliance.
How AXT Accountants Can Help
At AXT Accountants, we specialise in helping small builders navigate the complexities of CIS compliance. Our team of construction accounting experts can guide you through the registration process, assist with the verification of subcontractors, and provide support in maintaining accurate records. We can also help you understand your tax liabilities and ensure you’re not paying more than you need to.
Whether you’re a contractor or a subcontractor, don’t let the intricacies of CIS compliance slow down your construction business. With our expertise in construction accounting, AXT Accountants can help you stay on the right side of HMRC, so you can focus on building your business.
Get in touch with us today for a free consultation and let us help you with all your CIS compliance needs.


