Construction industry scheme
Stay CIS Compliant – Maximise Efficiency, Minimise Hassle. Expert guidance for contractors & subcontractors on CIS deductions, monthly returns, and HMRC compliance.
Self Assessment. Flat £125. No Surprises.
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What is CIS?
The Construction Industry Scheme (CIS) is a UK tax scheme operated by HMRC for the construction industry.
Under CIS, contractors deduct tax from payments to subcontractors and pay it directly to HMRC.
These deductions count as advance payments towards the subcontractor’s tax and National Insurance.
Who Needs to Report Under CIS?
Contractors
You are classed as a contractor if you:
- Pay subcontractors for construction work, or
- Spend £3 million or more on construction over any 12-month period (even if construction is not your main business)
Contractors must:
- Register for CIS with HMRC
- Verify subcontractors before paying them
- Deduct CIS tax at the correct rate
- Submit monthly CIS returns
- Pay CIS deductions to HMRC on time
Subcontractors
You are a subcontractor if you:
- Carry out construction work for a contractor
Subcontractors must:
- Register for CIS to reduce deductions
- Keep records of income and tax deducted
- Declare CIS income on:
- Self Assessment (sole traders & partnerships), or
- Corporation Tax return (limited companies)
What Work Is Covered by CIS?
CIS applies to most construction work, including:
- Building, repairs, and alterations
- Groundworks and foundations
- Electrical, plumbing, heating installations
- Decorating and finishing
Excluded services include:
- Architecture and surveying
- Equipment hire (without an operator)
- Manufacturing materials off-site
CIS Deadlines
- Monthly CIS return: by the 19th of each month
- Payment to HMRC: by the 22nd (if paid electronically)
How It Work
How We Handle Your Tax
From documents to submission — we make tax returns effortless and accurate.
Start with a Quick Online Assessment
Fill out a short, easy form to give us an overview of your income and tax situation, it only takes a few minutes.
Get Matched with a Tax Expert
We’ll assign a dedicated tax specialist who understands your situation and will prepare your return accurately.
Relax While We File for You
We’ll review everything with you, submit your return to HMRC, and ensure it’s done right and on time, no stress, no hassle.
What Our Clients Say
Hear how we’ve simplified tax and accounting for our clients
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HealthCare Solutions
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Tech Enterprises
Who We Assist
We assist anyone who needs to file a self-assessment tax return.
Choose a plan & get started
Starter
Essential – £115
✔ CIS registration guidance
✔ Register for UTR and CIS
✔ Preparation of CIS records for Self Assessment
✔ Calculation of deductions
✔ Help submit the return
✔ Provide a summary calculation
Business
Plus Support – £159
✔ CIS registration guidance
✔ Register for UTR and CIS
✔ Act as client’s HMRC agent
✔ Enhanced review of costs & reliefs to minimise tax
✔ Preparation of CIS records for Self Assessment
✔ Record keeping support
✔ Submit the return for client
✔ Help understanding & responding to HMRC queries or letters
✔ Clear calculation breakdown in plain English
✔ 15-minute review call with your accountant
✔ Limited post-submission support
Enterprise
Premium – £259
✔ CIS registration guidance
✔ Register for UTR and CIS
✔ Act as client’s HMRC agent
✔ Full review of costs & reliefs to minimise tax
✔ Preparation of CIS records for Self Assessment
✔ Submit the return for clients
✔ Record keeping support
✔ Ongoing representation in HMRC CIS enquiries or investigations
✔ Detailed CIS walkthrough with planning insights
✔ 30-minute review & strategy call with your accountant
✔ Year-round CIS support
✔ Up to 3 proactive CIS planning calls (e.g. pre-sale, post-sale, pre-deadline)
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Frequently asked questions
Have more questions? Don’t hesitate to reach.
Talk to our team directly for quick answers and guidance.
Who needs to file a Self Assessment tax return?
What documents do I need to get started?
Can you file my company tax return as well?
How long does it take to complete my tax return?
Do I get to speak to a real accountant?
Get a call back
Stress-Free Filing
Let us handle the paperwork so you don’t have to
Expert Support
Real accountants, ready to answer your questions.
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Always On Time
We’ll remind you and file before the HMRC deadline.
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