The Construction Industry Scheme catches out contractors and subcontractors alike — monthly returns, subcontractor verification, deduction statements and reclaiming the tax you've had withheld. We run the whole thing, so you stay compliant with HMRC and get back every pound you're owed.
Prefer to talk? Call 01962 435112
Monthly contractor returns filed with HMRC
Deductions verified and applied at the right rate
Subcontractors checked with HMRC before you pay
Over-deducted tax reclaimed for subcontractors
Whether you pay subcontractors, work as one, or both, we keep you compliant and make sure deductions land in the right place.
If you pay subcontractors you must file a CIS return every month. We prepare and submit it on time, every time, avoiding the automatic £100+ late penalties.
MonthlyBefore you pay a new subcontractor, HMRC must be checked to confirm their deduction rate. We verify every subcontractor so you deduct correctly.
ComplianceWe produce the monthly payment and deduction statements you're legally required to give each subcontractor — clear, compliant and on time.
StatementsContractors deduct tax before paying subcontractors, which often means you've overpaid. We reclaim CIS suffered through your return, frequently producing a healthy refund.
RefundsWe help eligible subcontractors apply for and keep gross payment status, so you're paid in full and settle tax through your normal return — a big cash-flow win.
Cash FlowCIS and the VAT domestic reverse charge interact in ways that trip a lot of firms up. We make sure both are handled together, correctly.
VATCIS returns are included as standard in our Construction sector package. On any other package, CIS is available as a straightforward monthly add-on — whether you're a contractor filing returns or a subcontractor reclaiming deductions.
All packages include a Xero subscription (our recommended software). View full package details →
Every construction client gets Xero set up to separate labour, materials and subcontractor costs — so CIS deductions are tracked correctly all year, not reconstructed at the deadline.
You deal directly with a qualified ICAEW Chartered Accountant — not a call centre or a different junior every year.
Your accounts are prepared and reviewed by a Chartered Accountant — the gold standard for technical accuracy and trust.
We explain what your numbers mean and what to do about them — no jargon, no acronym-soup, no pretending it's more complicated than it is.
We work to your dates well in advance and chase what we need from you, so late-filing penalties simply don't happen.
Your accounts and tax are part of one transparent monthly fee — no hourly billing, no year-end invoice shock.
"Chris was brilliant. He helped me fix some messy VAT issues right at the start and has been incredibly responsive ever since. I really appreciated the useful advice on the next steps for my business. Proactive, professional, and highly recommended!"
"Lumi were the only accountancy that consistently provided me with timely responses to enquiries and questions enabling me to make effective business decisions quickly. They make completing accounts simple from an owner's perspective who needs to focus on running and growing the business."
Book a free 30-minute call. Contractor returns or subcontractor rebates — we'll take the Construction Industry Scheme off your hands.
Plain-English reads for construction businesses.
Figures, thresholds and deadlines on this page reflect UK rules current at the time of writing and are general information, not advice for your specific circumstances. Please get in touch before acting.