Professional CIS Return Services for UK Contractors & Subcontractors
Stay fully CIS compliant without the hassle. We manage CIS registration, subcontractor verification, monthly CIS returns, deduction statements, and HMRC compliance support — accurately, on time, and under one fixed fee.
Monthly returns, verification & deduction statements
- CIS registration and HMRC authorisation support
- Subcontractor verification before payment
- Monthly CIS returns prepared and submitted
- Deduction statements issued and records organised
Stay Fully CIS Compliant — Without the Hassle
Managing CIS can be challenging when you are dealing with subcontractor payments, monthly returns, deduction statements, and strict HMRC rules. Incorrect deductions or missed deadlines can lead to penalties, cash flow issues, and unnecessary stress.
At SRZ Accountancy, we provide fully managed CIS services for contractors and subcontractors across the UK. We take care of registrations, verifications, monthly returns, and deduction statements — helping you remain compliant, organised, and penalty-free throughout the year.
Book a Free CIS ConsultationWhat Is CIS and Who Needs to Register?
The Construction Industry Scheme, also known as CIS, is an HMRC system that regulates how contractors pay subcontractors for construction work. Contractors must deduct tax at source and submit monthly CIS returns, while subcontractors use these deductions to offset their tax bill or claim a refund.
CIS rules are strict, and compliance is essential. We help you meet all requirements accurately and on time.
A contractor paying subcontractors for construction work.
A subcontractor working for a contractor in the construction industry.
A business spending £3 million or more on construction within 12 months.
Why Contractors and Subcontractors Trust Us With CIS
Correct CIS Deductions
We verify subcontractors with HMRC and apply the correct deduction rate — 0%, 20%, or 30% — so your records stay accurate.
Monthly Returns Filed on Time
We prepare and submit your monthly CIS returns before the deadline, reducing the risk of HMRC penalties.
Clear Deduction Statements
We prepare monthly CIS deduction statements for subcontractors, ready to download, share, or keep for your records.
Support for Refund Claims
If you are a subcontractor and have overpaid tax through CIS deductions, we help you claim your refund correctly.
Contractor and Subcontractor Support
Whether you pay subcontractors or work as one, we tailor the service around your CIS responsibilities.
Less Admin, More Control
We keep your CIS records organised so you can focus on running projects, managing jobs, and getting paid.
CIS Support for Construction Businesses and Tradespeople
Whether you manage one subcontractor or several, we tailor our CIS service to your needs.
Complete CIS Management Under One Fixed Fee
We offer a complete range of CIS services to support both contractors and subcontractors.
CIS Penalties Can Build Up Quickly
Missing a monthly CIS return can result in penalties from HMRC. Even small delays can become expensive if returns are not brought up to date.
We monitor your CIS responsibilities and submit returns on time, helping you avoid unnecessary fines and stay fully compliant.
CIS Refunds for Subcontractors
If you are a subcontractor, you may be due a tax refund. CIS deductions can often result in overpaid tax, especially when allowable expenses are not fully claimed. We handle the claim through your Self Assessment tax return.
Check If You Are Due a CIS Refund- Claim your refund quickly
- Include all allowable expenses
- Prepare and submit the correct tax return
- Understand what refund you may be due
- Receive your rebate faster where possible
Your CIS Compliance Managed in Four Simple Steps
Free Consultation
Tell us whether you are a contractor, subcontractor, or both. We confirm your CIS responsibilities and what needs to be done.
HMRC Setup & Verification
We help with CIS registration, HMRC authorisation, and subcontractor verification where required.
Monthly CIS Management
We calculate deductions, prepare CIS statements, and submit monthly returns accurately and on time.
Ongoing Support
We keep your CIS records organised, deal with HMRC queries, and support refund claims or compliance issues when needed.
CIS Handled by Accountants Who Understand Construction Compliance
CIS can quickly become stressful if records are incomplete, deduction rates are wrong, or monthly returns are missed. At SRZ Accountancy, we make the process simple, structured, and fully compliant.
- Fixed, transparent pricing
- Dedicated accountant support
- Contractor and subcontractor expertise
- Monthly CIS returns handled for you
- CIS deduction statements prepared
- HMRC communication support
- Support with CIS refunds and Self Assessment
- Clear, plain-English guidance
Simplicity is at our core
We combine practical construction-sector compliance support with clear communication, organised digital records, and fixed-fee pricing.
CIS Returns. HMRC Compliance. Simple Fixed-Fee Support.
What Our Bookkeeping Clients Say
Genuine feedback from small business owners, freelancers, and contractors we support across the UK.
CIS Questions, Answered
CIS is a UK HMRC scheme that controls tax deductions in the construction industry for contractors and subcontractors.
Yes. We manage CIS registration, subcontractor verification, monthly returns, and deductions — helping you stay compliant and organised.
You may need to register if you are a contractor paying subcontractors for construction work, a subcontractor working for a contractor, or a business spending £3 million or more on construction within 12 months.
CIS deduction rates are usually 20% for registered subcontractors, 30% for unregistered subcontractors, and 0% where gross payment status applies. We verify subcontractors with HMRC and apply the correct rate.
CIS returns are usually submitted monthly. We help track the deadlines and submit your returns on time to reduce the risk of penalties.
Yes. Many subcontractors overpay tax through CIS deductions. We help review your income, expenses, and deductions, then prepare the correct claim or Self Assessment tax return.
Yes. If your construction business has both employees and subcontractors, we can manage payroll and CIS together for smoother compliance.
Our CIS service is offered on a fixed-fee basis depending on your needs, number of subcontractors, and level of support required. Book a free consultation and we will confirm the right option for you.
Need Help With CIS? Let SRZ Accountancy Handle It.
Whether you need CIS registration, monthly returns, subcontractor verification, deduction statements, or a CIS refund claim, we are here to help. Speak to SRZ Accountancy today and keep your construction compliance simple.
Free consultation · No obligation · Fixed fees · UK-based support