CIS Tax Support for Subcontractors
Subcontractors often pay tax upfront through the Construction Industry Scheme (CIS), and in many cases this means they have paid more than they owe. Catanda helps subcontractors claim back overpaid tax, maximise allowable expenses and ensure every return is submitted correctly and quickly.
Why Subcontractors Commonly Overpay Tax
Under CIS rules, contractors deduct tax — usually 20% — before paying subcontractors.
For most subcontractors, this deduction:
• Is higher than their actual tax liability
• Doesn’t account for allowable expenses
• Can create large overpayments across the year
We ensure subcontractors reclaim every penny they are owed.
Claiming Back Overpaid CIS Tax
Most subcontractors qualify for a tax refund due to:
• Work-related expenses
• Tools and equipment costs
• Travel and mileage
• Protective clothing
• Professional fees
• Use of home expenses
Catanda handles the entire refund process, ensuring your claim is accurate, compliant and processed as quickly as possible.
Ensuring CIS and HMRC Compliance
Incorrect figures or missing records can delay refunds or trigger HMRC enquiries.
We help subcontractors with:
• Correct CIS deductions
• Accurate income reporting
• Compliance with HMRC requirements
• Proper documentation and record-keeping
• Avoiding penalties and over/under-reporting
Our goal is to make sure everything is done right the first time.
Get Your CIS Tax Refund Started Today
If you think you’ve paid too much tax — or simply want to be sure — we can help.
Our specialists will assess your position and start your refund process right away.
How Catanda Supports Subcontractors
When you work with Catanda, you get:
• Full review of CIS deductions
• Identification of allowable expenses
• Fast, accurate tax return submission
• Support with HMRC queries
• Clear explanations without jargon
• Fixed-fee pricing with unlimited support
We make the refund process simple, stress-free and fast.
Our Valued Clients
Subcontractor Tax FAQs
Below are the top questions subcontractors ask about CIS tax and refunds.
Most subcontractors have 20% deducted at source, which often exceeds their actual tax liability. Once allowable expenses are included, the majority of subcontractors are owed a refund. We calculate this accurately and submit the claim on your behalf.
Common claimable expenses include tools, equipment, travel costs, mileage, protective clothing, professional fees and some home-working costs. We help identify all allowable expenses so nothing is missed.
HMRC typically processes CIS refunds within a few weeks, depending on the time of year. We ensure your return is accurate and complete to avoid delays or further questions from HMRC.
Incorrect CIS deductions can affect your refund or raise HMRC concerns. We review all deduction statements, correct errors and ensure your return reflects the amounts that should have been deducted.
Ready to Claim Your CIS Refund?
We help subcontractors recover overpaid tax quickly and correctly. Get expert support today and maximise your refund with confidence.