CIS Registration
Contractor and subcontractor registration with HMRC, including gross payment status applications where eligible.
CIS isn't just another tax — it's a parallel regime with its own rules, returns and penalties, and HMRC actively police it. Whether you're a sole-trader subbie reclaiming £6,000 of overpaid tax or a main contractor running a verified supply chain, we live and breathe CIS.
Everything you need from your cis provider — under one roof, on one fixed fee.
Contractor and subcontractor registration with HMRC, including gross payment status applications where eligible.
Real-time CIS verification of every subcontractor before payment, with proper records kept for HMRC inspection.
Monthly CIS300 returns filed by the 19th of each month, including nil returns and online deduction statements to subcontractors.
Self-assessment returns for subcontractors with full reconciliation of CIS deductions — rebate refunds typically £4k–£8k per year.
VAT DRC compliance — invoicing, accounting and VAT return treatment for construction services.
Applications and ongoing maintenance of GPS, including the rolling compliance test reviews.
Simple, transparent and built around your timeline — not ours.
Set you up correctly with HMRC as a contractor, subcontractor or both — usually within 10 working days.
All subcontractors verified before first payment to determine the correct deduction rate (0%, 20% or 30%).
Each month we calculate deductions, file the CIS300 and issue PDS statements to subcontractors.
For subcontractors, we file the SA return and chase HMRC for the rebate — usually paid within 6–8 weeks.
Our cisservice is purpose-built for the situations below. If your circumstances aren't listed, get in touch — we've almost certainly seen it before.
No commitment, no hard sell — just clear advice from a qualified UK accountant.
You can be both. A contractor pays subcontractors for construction work; a subcontractor receives those payments. Many businesses are both: e.g. a builder who hires labour-only subbies but is also paid by a main contractor on a different site.
Most CIS subbies overpay tax during the year because the 20% deduction is taken from gross payments, before expenses like fuel, tools, mileage and insurance. Average rebates we secure are £4,500–£7,500. We've recovered as much as £15,000 for individual clients in a single year.
HMRC charges automatic penalties: £100 immediately, £200 after 2 months, then up to £3,000 or 100% of the tax for serious delays. We file all client CIS returns by the 15th of each month to leave a 4-day buffer.
Personal and corporate tax planning, self-assessment returns, capital gains, R&D credits and HMRC enquiry support — all year round, not just in January.
Statutory year-end accounts prepared in line with FRS 102/105 and filed with Companies House and HMRC — accurate, on time, every time.
Cloud bookkeeping with Xero, QuickBooks or FreeAgent. Real-time visibility, bank-feed reconciliations and monthly management reports.
Weekly, fortnightly or monthly RTI payroll. Pension auto-enrolment, P60s, P11Ds, CIS deductions and full HMRC liaison.
Book a free 30-minute consultation. We'll review your situation, flag any quick wins and quote a fixed monthly fee.