Construction Acountants in London
Cash Flow, Profitability and Compliance Support For Local Contractor
London’s main contractors carry some of the largest project values in the UK, with the top 50 national contractors reporting annual revenues running into billions, yet 60 to 90 day payment terms, monthly CIS deadlines and thin margins all put pressure on the business at once. Our london based construction accountants build forecasting, retention tracking, management accounts, CIS compliance and payroll systems that protect cash and profit together.
£3.1m+
CIS Recovered
100 %
HMRC & MTD Ready
50+
Five-Star Reviews
Construction
Tax EXPERTS
Fixed Fee
No hidden charges
HMRC Compliance
Who We Are
London construction accountants who protect cash position, profit & compliance, not just your accounts
Most London main contractors discover a problem late, whether a cash shortfall once a supplier chases payment, a contract that turns out unprofitable, or a CIS error flagged by HMRC. We track incoming payments, retention releases, job profitability and CIS obligations together across every London contract, so issues are visible weeks before they happen.
Real time cash flow and job profitability tracking across active and upcoming London projects
Monthly management accounts built around actual site costs across your London portfolio and CIS verification.
Proactive Tax Planning
Plan the tax bill before it plans your cash flow for you
Construction businesses that leave tax planning until year end often find the liability lands at the worst point in their project cash cycle. Our construction accountants in London run structured tax planning reviews during the year, well ahead of your London business’s year end, to forecast Corporation Tax, identify capital allowances and flag reliefs before the window closes.
100%
CIS Compliance Rate
CIS Returns and Construction Payroll
CIS and payroll handled correctly across large London labour forces
Contractors must file a CIS return every tax month, including nil returns, by the 19th of the following month, and must correctly verify each subcontractor’s status, all while running payroll for often large, multi site direct labour forces. Getting this wrong on a large London scheme multiplies both penalty risk and cash flow disruption
Subcontractor verification, CIS deductions and monthly HMRC returns managed across large London labour forces
Construction payroll processed for direct employees alongside CIS, including deduction statements issued within 14 days
Common Pain Points
What Really Drains Profit and Cash On London Projects
Most problems on London sites trace back to a small set of recurring, fixable causes across cash, profit and compliance.
Extended Client Payment Terms
waiting 60 to 90 days for payment on major London developments while wages and materials are due immediately
Retention Money Tied Up For Months
withheld amounts released only at practical completion and after the defects period lock up working capital long after work finishes
Weak Management Accounts Visibility
without monthly job level reporting, a healthy looking bank balance can mask a loss making London contract
Underpricing Bids Against True Costs
tenders based on outdated London labour and material rates can turn a full order book into a loss making one
CIS Errors and Late Returns
incorrect verification, late monthly returns or missed deduction statements create HMRC penalties and cash flow damage
Subcontractor Payment Pressure
paying trades promptly while awaiting main contract payment squeezes cash from both directions at once
Construction Payroll Complexity
managing direct payroll alongside CIS deductions for large, multi site London labour forces
Free Consultation
Let’s talk about your construction accounting challenges
Book a 30-minute call with our specialist accountant for construction business. We’ll look at how your business is set up and flag quick wins you can act on straight away.
- CIS and VAT reverse charge handled correctly
- Deep expertise in contractor, subcontractor tax rules
- Forward-looking advice, not just year-end filing
- Transparent fixed fees, no surprises
Our Services
Complete Financial Management For London Contractors
From forecasting through to compliance, we manage the full financial picture for main contractors and subcontractors.
Rolling Cash Flow Forecasting
We project your cash position weeks and months ahead based on your actual project pipeline
Monthly Management Accounts
We provide job-level profitability analysis, margin tracking and cost-variance reporting, giving you a clear view beyond annual figures.
Proactive Tax Planning
We forecast your tax position mid-year and plan capital allowances and available reliefs around your financial year.
CIS Returns and Verification
We handle your monthly HMRC filings, subcontractor verification and deduction statements in full.
Construction Payroll
We process payroll for your direct employees alongside CIS deductions across every UK site.
Retention Tracking and Recovery
We monitor every retention balance and follow up on release dates, helping ensure money owed to you is not forgotten.
Payment Term Negotiation Support
We help structure client and subcontractor contracts with payment terms designed to protect your working capital.
Late Payment Chasing and Credit Control
We manage payment reminders and follow-ups on overdue invoices, so debt collection does not fall entirely on you.
Short-Term Finance Guidance
We advise you on invoice finance and overdraft facilities when a genuine short-term cash-flow gap needs bridging.
Client Stories
Real feedback from real construction businesses
Over 60 verified five-star reviews from subcontractors, contractors and developers across the UK.
★★★★★
“I’d been under-claiming CIS repayments for two years without realising it. They found and recovered £14,000 within weeks of taking us on. Nobody had ever explained the scheme to me this clearly before.”
★★★★★
“We had no real idea which contracts were making money until they built us a proper job-costing system. Now we price the next tender based on actual data, not guesswork.”
★★★★★
“Every site brings its own VAT and SDLT questions, and they have never once been slow to answer. Switching from our old firm was the easiest financial decision we have made in years.”
FAQS
Commonly Asked Questions About London Construction Accounting
Why do London contractors struggle with cash flow even when profitable on paper?
Profit on a project and cash in the bank are different things, since retention, slow payers and upfront costs mean money owed hasn’t actually arrived yet.
How much retention can I expect tied up across London contracts?
Typically 5% of contract value, split between practical completion and the end of the defects period, though this varies by contract terms.
How often should a London contractor review management accounts?
Monthly at minimum, and weekly on high value active contracts, so margin erosion is caught while it can still be corrected.
Do you help with proactive tax planning rather than just year end filing?
Yes, we run mid year tax reviews so Corporation Tax, capital allowances and reliefs are planned ahead of your Birmingham business’s year end rather than dealt with after the fact
How do you handle CIS and payroll for London contractors managing large labour forces?
We manage Construction Industry Scheme deductions and payroll across large, often multi site London labour forces, keeping HMRC filings accurate and on time, including the monthly return due by the 19th of each tax month.
Do you handle construction payroll alongside CIS?
Yes, we run payroll for direct employees and manage CIS deductions for subcontractors in parallel, so both are accurate and filed on time.
Can I do anything about clients who consistently pay late?
Yes, stronger payment terms, deposit requirements and active credit control can significantly reduce how long cash stays outstanding.
How far ahead should I be forecasting cash flow?
At minimum 13 weeks ahead, ideally tied to your actual project schedule so forecasts reflect real payment and cost timing rather than averages.
Still have questions?
Our construction accountants are ready to answer any questions about your specific tax situation with no obligation for an initial conversation.
- 121 262 1528
- Mon–Fri, 9am–5:30pm