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CIS

Specialist accounting for construction contractors and subcontractors.

Service Overview

Construction Industry Scheme (CIS)

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.

Construction Industry Scheme (CIS)
Specialism
CIS
What's Included

A complete, joined-up service

Everything you need from your cis provider — under one roof, on one fixed fee.

01

CIS Registration

Contractor and subcontractor registration with HMRC, including gross payment status applications where eligible.

02

Subcontractor Verification

Real-time CIS verification of every subcontractor before payment, with proper records kept for HMRC inspection.

03

Monthly CIS Returns

Monthly CIS300 returns filed by the 19th of each month, including nil returns and online deduction statements to subcontractors.

04

CIS Tax Rebates

Self-assessment returns for subcontractors with full reconciliation of CIS deductions — rebate refunds typically £4k–£8k per year.

05

Domestic Reverse Charge

VAT DRC compliance — invoicing, accounting and VAT return treatment for construction services.

06

Gross Payment Status

Applications and ongoing maintenance of GPS, including the rolling compliance test reviews.

How It Works

Our four-step process

Simple, transparent and built around your timeline — not ours.

01

Register

Set you up correctly with HMRC as a contractor, subcontractor or both — usually within 10 working days.

02

Verify

All subcontractors verified before first payment to determine the correct deduction rate (0%, 20% or 30%).

03

Run Monthly

Each month we calculate deductions, file the CIS300 and issue PDS statements to subcontractors.

04

Reclaim Annually

For subcontractors, we file the SA return and chase HMRC for the rebate — usually paid within 6–8 weeks.

Who It's For

Is this right for you?

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.

  • Main contractors
  • Subcontractors (sole trader or Ltd)
  • Labour-only contractors
  • Plant hire businesses
  • Property developers
  • Civil engineering firms
Speak to a Specialist

Get a fixed-fee quote for your cis requirements.

No commitment, no hard sell — just clear advice from a qualified UK accountant.

Common Questions

CIS FAQs

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.

Get Started Today

Ready to sort your cis?

Book a free 30-minute consultation. We'll review your situation, flag any quick wins and quote a fixed monthly fee.