English-speaking French accountant for construction companies, artisans and contractors: job costing, reverse charge VAT, retention guarantees, payroll and short-term cash flow.
In 2026, the construction and civil engineering sector is undergoing intense transformation: energy transition (BBC renovation, environmental qualifications), site digitalization, material and skilled labor tensions, regulatory pressure (RE2025, environmental standards). Tradesmen, VSEs and SMEs in construction — masons, electricians, plumbers, carpenters, roofers, painters, general contractors — must juggle complex accounting, confusing multi-rate VAT, specific payroll (Building and Civil Works agreements), and structurally high working capital requirements (WCR).
Hayot Expertise is the specialized accounting firm for construction that supports your development from Paris throughout France. We master progress accounting by site, multi-rate construction VAT (20%, 10%, 5.5%, self-assessment), construction payroll (bad weather, travel allowances, paid leave fund), retention guarantees, subcontractor management (1975 law), and environmental qualifications. Whether you're a self-employed tradesman, a 10-employee masonry LLC, or a 50-employee electrical contracting corporation, our mission is to optimize your taxation, secure your cash flow, and save you time to focus on your sites.
Construction is a labor- and material-intensive sector with long production cycles (several months for major renovation or new construction). Progress accounting is mandatory for multi-year contracts and strongly recommended for sites over 3 months. Construction WCR is structurally heavy: you buy materials and pay salaries during the site, you invoice by monthly work situations, and you often collect with 45 to 60 days delay, or more for public contracts (60-90 days).
Progress accounting (accounting standard, article 380-1) requires recognizing revenue as work progresses, not at final delivery. This smooths results and better reflects the economic reality of a long site.
Progress method:
Our firm implements analytical accounting by site: tracking actual costs (materials, labor, subcontracting, equipment rental) and comparison with budget forecast. You know in real-time if a site is profitable or loss-making, and you can adjust future commercial proposals.
Construction VAT is one of the most complex in the tax code, with 4 applicable rates depending on work nature and building age.
⚠️ Warning: the 5.5% rate is only applicable if the company is environmentally qualified for the type of work concerned. Without environmental qualification, the 10% rate applies (or 20% if new building).
Since 2014, VAT is self-assessed by the client (general contractor or taxable project owner) when a construction subcontractor invoices work. The subcontractor invoices excluding VAT and mentions "VAT self-assessment by the client (art. 283, 2 nonies CGI)". The client collects and deducts VAT simultaneously (line 3B of CA3).
Advantages: simplification, VAT neutrality for the client, fight against carousel fraud.
Risk: qualification error (forgetting to mention self-assessment) = tax adjustment.
Our firm secures construction VAT management: verification of applicable rate per site, management of simplified and standard certificates, self-assessment processing in subcontracting, monthly or quarterly CA3 declarations.
The project owner can retain 5% of each work situation amount until work reception. This retention guarantee covers any defects or non-conformities. It is released progressively:
Alternative: replace retention guarantee with a bank guarantee (cost 1% to 2% of guaranteed amount), which avoids blocking your cash flow.
Our firm tracks retention guarantees (account 2768 Receivables related to retention guarantees) and manages release in coordination with project owners.
We implement rigorous analytical accounting:
Digital tools: integration with your business software (construction management tools) to automatically retrieve site costs.
Construction LLC managers are often majority managers (self-employed, pay high social charges ~45% of net profit). Optimization strategies:
Our firm models scenarios and optimizes your overall compensation (salary, dividends, profit-sharing, director retirement savings) to maximize your after-tax disposable income.
Construction applies two main collective agreements:
Construction employees are entitled to travel allowances (travel time between depot and site) and transport allowances (travel expenses). These allowances are exempt from social contributions within certain limits.
Examples:
Bad weather compensation: in case of site stoppage due to weather (frost, snow, torrential rain…), employees can receive unemployment-bad weather allowance funded by a specific fund. The employer must record bad weather provisions (prepaid expenses).
Paid leave fund: in construction, paid leave is managed by an external fund. The employer pays monthly contribution (~20% of payroll) to the fund, which directly compensates the employee during leave.
Our firm outsources your construction payroll: calculation of travel allowances, bad weather management, declarations to paid leave funds, pay slips compliant with Building or Civil Works agreements, automated social declarations.
Environmental qualification has become essential to access energy renovation markets (government energy grants, tax credits). It certifies your technical competence and qualifies for 5.5% VAT rate.
Environmental qualifications by field:
Accounting impact: training and certification expenses are deductible charges. Multi-year certifications can be capitalized and amortized over the period.
Our firm supports the environmental qualification process: tracking certification costs, tax optimization of training investments, management of 5.5% VAT certificates.
Construction certification certifies your technical skills, human resources and references. It is often required to respond to public contracts (municipalities, departments, social landlords).
Advantages:
Procedures: file constitution (balance sheet, site references, staff qualifications), audit visit, renewal every 4 years.
Our firm supports you in construction certification file constitution (accounting balance sheet, certificates, financial guarantees) and public tender response preparation.
Construction WCR is one of the heaviest of all sectors: 45 to 60 days of revenue on average, or even 90 days for public contracts. You finance materials and labor before collecting work situations.
Financing levers:
Our firm manages your WCR: 3-month cash flow forecasts, factoring negotiation with construction-specialized factors, customer account optimization (reminders, unpaid management).
Choosing the right structure is strategic for your taxation and asset protection.
⚠️ Limit: unlimited liability (personal assets engaged), difficulty recruiting, weak commercial credibility for large sites.
Construction holding: if you develop several activities (masonry + electrical, or competitor takeover), creating a holding corporation allows:
Our firm structures your legal and tax setup: LLC/corporation creation, sole proprietorship to company conversion, holding creation, shareholders' agreement.
| Indicator | Target benchmark | Comment |
|---|---|---|
| Gross margin per site | 30% - 45% | (Revenue - direct costs) / Revenue |
| Staff costs | 35% - 50% of revenue | Depends on subcontracting share |
| Material expenses | 20% - 35% of revenue | Variable by trade |
| WCR in days of revenue | 45 - 60 days | Finance by factoring if > 60d |
| Client payment terms | 45 days | Public contracts: 60-90 days |
| Retention guarantees | 5% of revenue | Release at reception |
| Stock turnover rate | 4 - 8 times/year | Minimal material stock |
Initial situation:
Our intervention:
Analytical accounting by site implementation: creation of site codes, cost allocation (materials, labor, subcontracting, equipment rental), actual gross margin calculation per site. Result: identification of 3 loss-making sites (negative margin) out of 15 sites in progress → adjustment of future commercial proposals.
Construction VAT optimization:
Results after 12 months:
✅ Construction sector expertise: Mastery of Building and Civil Works agreements, multi-rate VAT, self-assessment, retention guarantees, environmental qualifications.
✅ Analytical accounting by site: Tracking actual margins, identification of loss-making sites, profitability optimization.
✅ VAT optimization: Securing reduced rates (10%, 5.5%), simplified and standard certificates, self-assessment management.
✅ Outsourced construction payroll: Travel allowances, bad weather, paid leave fund, Building and Civil Works agreements, automated social declarations.
✅ WCR and cash management: Construction factoring, retention guarantees, cash forecasts, growth financing.
✅ Structuring advice: Sole proprietorship, LLC, corporation, holding, environmental qualification, public contracts.
Specialized accounting firm for construction & civil engineering in Paris
Our guides and articles for construction and civil engineering:
Contact us for a free BTP accounting review — English-language support for foreign contractors, subcontractors, and developers active in France. 58 rue de Monceau, 75008 Paris | Book an appointment For more, see our construction accountant guide for 2026 — VAT reverse charge, retention, progress billing and e-invoicing.
French construction businesses combine long project cycles, contract-by-contract margin, multiple VAT regimes, sector-specific payroll, and structurally heavy working capital needs. Good management depends on reading jobs, labour, subcontracting, and cash together.
Check the type of works, the age of the building, energy-renovation eligibility, and the subcontracting setup before issuing the invoice.
Combine materials, labour, subcontracting, and delays to understand which contracts are generating real value.
Follow progress billings, customer delays, retention guarantees, and financing pressure to avoid preventable cash stress.
Include allowances, overtime, sector contributions, and site labour costs in the reading of each project.
Wherever you are in France, we deploy a 100% digital interface to deliver fast, highly-structured accounting and financial steering.
Samuel Hayot is a French chartered accountant and statutory auditor registered with the Paris professional bodies.
The firm is based in Paris 8 and operates with a delivery model designed for businesses located across France.
Pennylane, Dext, Silae and an automation-first setup built for visibility and speed.
Visible phone number, simple contact path, fast engagement letter and tighter qualification of the mandate.
30 complimentary minutes with Samuel Hayot to challenge your reporting and surface your priority levers.
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Because construction is not managed like a standard service business. You need site-by-site profitability, the right VAT regime on each invoice, control of subcontracting, payroll rules specific to BTP, and close monitoring of cash tied up in progress billings and retention guarantees.
In many subcontracting situations, the subcontractor invoices without VAT and the customer self-assesses it on the French VAT return. If the invoice is issued incorrectly, both compliance and margin can be damaged.
Job costing should combine materials, labour hours, subcontracting, equipment rental, travel-related costs, and any delay or rework impact. Without that full view, quotations are often too optimistic.
A retention of 5% on progress invoices can lock cash for months. If it is not tracked carefully, a profitable contractor can still face cash tension because money remains blocked after the work has moved on.
Construction payroll often includes travel allowances, bad weather compensation, overtime, paid leave fund contributions, and collective-agreement rules that are different from standard SME payroll.
The most useful starting points are gross margin by job, invoicing progress, customer payment delays, VAT exposure, labour cost, subcontractor dependency, and the rolling cash position for the next few months.