Construction
Accountants for Construction Companies UK
Accounting that understands CIS, reverse charge and site reality — so cashflow and compliance stay under control.
Fixed fee from £150/month · free first call
- CIS aware
- VAT reverse charge
- Payroll ready
- Fixed fees
CIS, VAT reverse charge and construction bookkeeping for UK contractors. Fixed-fee accounting from ProKeeper.
Sound familiar?
Construction-specific headaches
CIS deductions that never get reclaimed
Limited companies can offset CIS suffered against their own PAYE bill each month. Many wait for a year-end refund instead and starve their cash flow.
Reverse charge invoices done wrong
Since 1 March 2021, most construction services between VAT-registered CIS businesses use the domestic reverse charge. Charging VAT when you shouldn’t, or the reverse, creates errors on both sides.
Monthly CIS returns missed
Contractors must file a CIS return by the 19th of every month. Late returns start at £100 each and grow from there.
Included
How we support contractors
CIS returns and verification
Subcontractors verified with HMRC before first payment, monthly CIS300 returns filed by the 19th, statements issued.
CIS reclaim for subcontractors
Deductions suffered offset against PAYE through the EPS, or claimed on Self Assessment for sole traders.
VAT with domestic reverse charge
Correct invoice wording, end-user and intermediary checks, and returns that reconcile.
Project bookkeeping
Labour, materials, retentions and stage payments tracked by job.
Payroll for site staff
Employees and CIS labour kept separate and correctly taxed.
Year-end accounts and tax
Company accounts and CT600, or Self Assessment for sole-trader subcontractors.
Who it’s for
We help
- Main contractors paying subcontractors under CIS
- Subcontractor limited companies with CIS deductions to reclaim
- Sole-trader trades (electricians, plumbers, builders) filing Self Assessment
- VAT-registered firms dealing with the domestic reverse charge
Process
Engage us
- 1. Trade review CIS status, VAT, workforce model.
- 2. Fixed quote Package for your size and filings.
- 3. Cleanup if needed Stabilise records before the next deadline.
- 4. Monthly compliance CIS/VAT/payroll rhythm.
Pricing
Construction accounting pricing
Construction packages typically start from £150/month for bookkeeping foundations, with CIS and VAT scoped to your workforce model.
Example
Illustration, not a client file
A VAT-registered subcontractor company invoices a main contractor £10,000 for labour and £2,000 for materials. The contractor deducts CIS at 20% on the labour only (£2,000), not on the materials. Because the domestic reverse charge applies, the invoice shows no VAT and states that the customer accounts for it. The subcontractor receives £10,000 and offsets the £2,000 CIS deduction against its own PAYE bill that month, instead of waiting for a refund after the year end.
Build with books that won’t collapse
Book a free construction accounting call.
FAQ
Common questions
What are the CIS deduction rates?
20% for subcontractors registered with HMRC, 30% if they are not registered, and 0% for those with gross payment status. Deductions apply to labour, not to materials or VAT.
When is the CIS monthly return due?
By the 19th of each month, covering payments made in the tax month to the 5th. Late returns start at a £100 penalty.
How does a limited company get CIS deductions back?
By offsetting them against the PAYE and National Insurance it owes each month, reported on the Employer Payment Summary. Any excess can be reclaimed from HMRC.
Does the domestic reverse charge apply to me?
Usually, if you supply standard or reduced-rated construction services to another VAT-registered business that reports under CIS, unless the customer is the end user or an intermediary supplier.
How much does construction accounting cost?
Packages start from £150/month, depending on CIS, VAT and payroll. You get a fixed quote after a free call.
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