Accountant for Builders, Trades & Construction
Companies999 provides specialist accountancy for the construction industry across the UK. Builders, electricians, plumbers, subcontractors, and construction companies — we understand CIS inside out, handle the VAT Domestic Reverse Charge, and ensure your accounts and tax returns are right every time.
What We Offer
Tailored services for you
CIS Compliance
Full management of the Construction Industry Scheme, including monthly CIS returns, subcontractor verification, and deduction statements.
VAT for Construction
Expert handling of the VAT Domestic Reverse Charge for construction, standard VAT returns, and advice on the flat rate scheme.
Self Assessment & Company Accounts
Whether you operate as a sole trader or limited company, we prepare your annual accounts and tax returns, ensuring all construction-related expenses are claimed.
Subcontractor Tax Returns
Self-assessment returns for subcontractors, ensuring CIS deductions are reclaimed and all legitimate expenses are claimed.
Payroll for Construction
Managed payroll for your employees and operatives, with full RTI compliance, holiday pay calculations, and pension auto-enrolment.
Business Growth Advice
Financial planning and management accounts to help your construction business plan for growth, manage cash flow, and win bigger contracts.
How the CIS Works
The CIS requires contractors to deduct tax from subcontractor payments: 20% for registered subcontractors, 30% for unregistered. Subcontractors with Gross Payment Status (GPS) receive payments without deductions. You must verify every subcontractor with HMRC, file monthly CIS returns by the 19th, and provide deduction statements. We manage the entire process.
VAT Domestic Reverse Charge for Construction
Since March 2021, the reverse charge applies to most construction services between VAT-registered businesses within CIS. The customer accounts for VAT instead of the supplier. We ensure your invoices, VAT returns, and software are correctly configured.
Gross Payment Status
GPS eliminates CIS deductions, significantly improving cash flow. Requirements: 12+ months in business, turnover above £30,000 (sole traders), all tax and NI paid on time, all returns filed on time. We help you apply and maintain GPS.
CIS Deduction Reclaims
Deductions suffered are credited against your tax liability. If they exceed your tax bill, you receive a refund. We ensure all deductions are properly reclaimed through your returns.
Why Choose Us
We know construction
The construction industry has its own set of rules that most accountants don't fully understand. CIS returns, reverse charge VAT, and subcontractor payments all require specialist knowledge. We work with tradespeople across the UK and know exactly how to keep you on the right side of HMRC.
Software We Work With
FAQs
Frequently Asked Questions
What is CIS and do I need to register?
The Construction Industry Scheme requires tax deductions on subcontractor payments. Register to be taxed at 20% instead of 30%. If you hire subcontractors, you must register as a contractor.
Can you help me get Gross Payment Status?
Yes. We assess eligibility, prepare the application, and ensure your compliance supports it.
How does the reverse charge work?
Subcontractors show VAT on invoices but do not collect it. The contractor accounts for it. We set up your systems correctly.
Can you reclaim my CIS deductions?
Yes. We ensure all deductions are reclaimed through your tax return or CT600.
What expenses can tradespeople claim?
Tools, vehicle costs, materials, workwear/PPE, phone, insurance, training, and subcontractor payments.
Do you handle monthly CIS returns?
Yes. Filing by deadline, subcontractor verification, and deduction statements.
What about MTD for self-employed tradespeople?
From April 2026, sole traders with gross income over £50,000 must use MTD. We set up software and handle quarterly submissions.
Related Services
Ready to get started?
Whether you're a one-man band or growing your team, we make accounting simple. Call us on 0121 638 0905 for a free discovery call.