Part-Time CFO & Interim Finance Management

CFO Service France: Fractional and Interim Senior Leadership

CFO service France is a structured service in which an experienced chief financial officer is engaged on a fractional, interim, virtual, or project basis to lead the company’s finance function — budgeting, forecasting, reporting, treasury, board interaction — without a permanent hire. The CFO service is calibrated to the company’s stage, sector, and the question being addressed, and is delivered inside the French regulatory framework (Code de commerce, PCG, DGFiP, URSSAF, CNCC). Interexco has helped founder-led businesses, scale-up organizations, and PE-backed groups navigating fundraising, acquisition, integration, and exit cycles for over 40 years.

Interexco is a French regulated chartered accountancy and audit firm — expert-comptable (OEC) and commissaire aux comptes (CNCC) — headquartered at 30 Boulevard Haussmann, Paris 9e, with offices in Lille, Milan, and Tunis. We work in English, French, Italian, Spanish, Russian,Arabic and act for clients from day one in their working language.

What Our CFO Service France Covers

The CFO service covers the full substance of the CFO position. The lead becomes the operational head and the wider Interexco team assists with workstreams as needed. Core CFO deliverables:

• Budgeting, forecasting, and planning — annual budget, rolling forecast, scenario planning, three-statement build, cash flow forecasting, 13-week liquidity outlook
• Monthly management reporting and KPI design — group-aligned pack, variance commentary, board materials, investor information
• Treasury and cash flow — banking relationships, cash visibility, working capital efficiency, covenant monitoring
• Financing strategy — debt, equity, mezzanine, asset-backed lines; lender and investor preparation, term sheet review
• Audit preparation — interface with the commissaire aux comptes, audit file structure, query handling, adjustment resolution
• Tax oversight — coordination with the expert-comptable and tax counsel on corporate income tax, VAT, transfer pricing, and group structure
• Internal control and risk — internal framework, approval matrices, segregation of duties; identify and mitigate financial risk
• Capital event support — fundraising, mergers and acquisition transaction work, refinancing, restructuring, exit preparation, valuation

Each mandate runs under an engagement letter defining scope, deliverables, calendar, and price — led from start to finish by a named senior.

When This Solution Is the Right Choice

Five recurring situations in which clients engage the CFO service — each with its own business challenges and solutions:

• Scale-up that has outgrown its accounting manager — the business needs senior leadership and strategic planning, but a full-time hire is not yet justified
• Founder-led company preparing a fundraising round — investor dialogue, data room, model build, and board materials require a leader the founders can rely on
• PE-backed portfolio company in the first 100 days post-LBO — sponsor reporting, controls, treasury, and KPI architecture must be rebuilt without delay
• International group with a small French subsidiary — the parent needs senior oversight of French operations without local executive headcount
• Crisis or transition — sudden departure of an in-place head, restructuring, or refinancing — where continuity is critical

In France vs. Internationally

A CFO service in France differs from a senior finance brief in the UK, US, or other jurisdictions in three structural ways:

• Regulatory environment — the French senior finance head operates inside the Code de commerce, the Code général des impôts, the Code du travail, the Plan Comptable Général, and — where the entity is audited — CNCC NEP standards. Statutory accounting follows PCG rather than IFRS for standalone SMEs, with IFRS layered on for consolidated groups. URSSAF, AGIRC-ARRCO, and the Greffe du Tribunal de Commerce impose filing and contribution calendars not present elsewhere.
• Social and labour challenges — French employment law, collective agreements, and social security contributions make the French position considerably heavier on the people side than in most Anglo-Saxon environments. The PASS ceiling (€47,100 in 2025) and multi-layer contribution tables require dedicated tools and controller-level support.
• Audit and statutory disclosure — appointment of a statutory auditor in France is triggered by thresholds (bilan ≥ 5 M€, CA HT ≥ 10 M€, 50 employees on two consecutive financial years, Décret n° 2024-152 du 28 février 2024 transposing EU Directive 2023/2775). Above those thresholds, the senior head manages contact with the commissaire aux comptes, the audit file, and the formal communications required.

The Interexco lead brings the operating depth expected by an international sponsor and the French regulatory depth expected by the commissaire aux comptes — a combination an in-house hire alone rarely delivers in this environment.

Why This Matters: French Regulatory Landscape

The French regulatory framework imposes obligations the senior head must meet, not merely understand. Named entities the lead interacts with, directly or through advisers:

• OEC (Ordre des Experts-Comptables) — regulator of the chartered accountancy profession and of the expert-comptable signing the annual accounts
• CNCC (Compagnie Nationale des Commissaires aux Comptes) — regulator of statutory auditors; NEP rules govern the audit interaction
• DGFiP (Direction Générale des Finances Publiques) — French tax administration. The standard corporate income tax rate is 25% (DGFiP, 2025), with a reduced 15% rate on the first €42,500 of profit for qualifying SMEs
• URSSAF — collection of social security contributions
• AGIRC-ARRCO — supplementary pension contributions for private-sector employees
• Greffe du Tribunal de Commerce — filing of annual accounts and of changes to the registered company file
• ANC (Autorité des Normes Comptables) — French accounting standard-setter; issues the Plan Comptable Général
• AMF (Autorité des Marchés Financiers) — supervision of listed companies and certain regulated finance activities
• CNIL and the Loi Informatique et Libertés — data protection obligations on financial and HR information

A further calendar item: mandatory e-invoicing rolls out in September 2026 for large enterprises and September 2027 for all SMEs (Loi de finances 2024). In-scope businesses must choose a plateforme de dématérialisation partenaire and re-architect accounts receivable and payable processes. CSRD sustainability disclosure was transposed by Ordonnance n° 2023-1142 du 6 décembre 2023; in-scope companies must align accounting and sustainability information architecture.

Our Methodology

A typical mandate runs in three phases:

1. Diagnostic — a scoped window agreed at engagement to understand the current state, map the team, identify gaps in the chart of accounts, controls, and treasury, and define quick wins
2. Build and stabilise — the lead takes day-to-day responsibility for the function, designs the target operating framework, recruits or restructures the in-house team, helps the organization grow, and implements tools, control documents, and a calendar that aligns the accounts with the rest of the organization
3. Steady state and growth — monthly close, board pack, forecast refresh, treasury monitoring, audit interface, capital event support — with the same lead remaining the dedicated point of contact through the company’s growth phase

Fees are scoped per mandate: a fixed monthly retainer tied to defined deliverables; ad hoc projects (transaction support, fundraising, system migration) scoped separately. The arrangement is quoted on a fixed-fee basis after initial scoping.

Industries Served

Our team has dedicated experience across these industry verticals — each with its own operating model, KPIs, and regulatory specifics. Our approach adapts to each sector:

• Software and SaaS — ARR and bookings reporting, deferred revenue, cohort and unit economics, R&D tax credit (CIR)
• Consumer and retail — inventory and margin analysis, multi-channel reporting, working capital optimisation
• Industrial and manufacturing — cost accounting, product profitability, capex planning, lender covenant tracking
• Professional services and consulting — utilisation, revenue recognition, compensation models, partner billing
• Real estate and asset-light operators — SPV structures, IFRS 16 lease accounting, financing structure
• Healthcare and biotech — grant and funding accounting, milestone-based revenue, investor reporting to lenders and equity holders

The lead aligns the reporting framework, the team composition, and the technology stack with the industry’s requirements. We provide both the strategic direction and the hands-on controller support to scale operations efficiently and develop the function in step with the business.

Benefits of Engaging Interexco

Engaging a CFO service rather than hiring a permanent executive delivers measurable benefits across several dimensions:

• Cost — access to senior expertise on an engagement basis, with no severance exposure
• Expertise on day one — the lead arrives experienced, with a portfolio of comparable mandates, ready to handle the company’s challenges
• Operational impact — the senior head will improve cash flow visibility, internal documents, and decision-making on a timeline agreed at engagement, helping the team gain confidence in the numbers
• Scaling support — the mandate scales with the business; companies in a growth phase often benefit from increased time during a fundraising or acquisition, then return to a steady-state arrangement tailored to scope
• Audit and compliance — qualified to interface with the commissaire aux comptes, ensuring compliance with CNCC NEP standards, French tax regulations, and reporting requirements
• Strategic and regulatory dual benefit — operating experience combined with French chartered accountant depth — a difference rarely matched by hiring an executive in isolation

For founder-led businesses, the lead is also a sparring contact on strategy, board composition, and the long-term direction of the organization.

How to Choose the Right Provider in France

Choosing the right firm is a critical decision. Five practical tests:

• Regulated status — is the provider a member of the OEC and CNCC? An unregulated consultant cannot sign accounts, cannot formally interact with the commissaire aux comptes on regulated matters, and cannot ensure compliance the same way
• Senior-led delivery — confirm in writing that the named lead is the operational point of contact, not a sales contact who hands off to junior staff after signature
• Operating background — the lead must have run a function comparable to the client’s. Ask for the recent profile
• Industry knowledge and key skills — the senior should already understand the industry’s KPIs, business model, and key challenges, not learn them on the client’s time
• Language and culture fit — for international groups and foreign founders, the senior officer must work in English (or other working language) from day one and bring cross-border experience helping management develop the right approach

These criteria are simply the basis of choosing a competent provider. We offer a free consultation to confirm fit before a formal mandate begins.

Risk Oversight and Control

A core part of the brief is risk: we identify and mitigate the most common financial and operational risk areas to protect the company’s potential and assist the leadership team:

• Liquidity risk — 13-week cash forecast, covenant monitoring, lender dialogue
• Tax and compliance risk — coordination with the expert-comptable and tax counsel; alignment with DGFiP guidance and CGI provisions (e.g., VAT 20%, CGI art. 278) — focus on measure and method
• Reporting and disclosure risk — sign-off matrices, audit-ready files
• Fraud and segregation risk — approval workflows, segregation of duties, periodic review
• Strategic risk — scenario planning, sensitivity analysis, stress tests

The lead provides accurate, informed analysis and assists the leadership team and board with the confidence and insights needed to make decisions in a timely manner, providing real visibility on performance and helping the company prepare for the future.

Bottom Line: When CFO Service France Is the Right Choice

A CFO service in France is the right choice when a business needs senior expertise — strategy, planning, control, reporting, treasury — without the cost, recruitment delay, and exit risk of a permanent hire. It is particularly relevant for scale-up businesses navigating growth challenges and solutions, PE-backed companies in transition, and international groups operating a French subsidiary. The CFO service adapts to the company’s size and sector complexity, brings access to a senior team of professionals, and meets the regulatory and governance requirements of the French environment.

The practical conclusion: a fractional or interim CFO is essential where senior leadership is required but a full-time hire is not yet warranted or affordable. The right firm brings the strategic vision and the discipline to enhance financial health, identify opportunities, implement controls, develop the team, manage execution, prepare for capital events, integrate acquired entities, optimize performance, align the function with the company’s long-term goals and growth strategies, and measure success against board-approved targets. That combination of regulated status and operating expertise — with experience across industries — delivers a level of benefit and impact that an isolated executive hire rarely matches.

Frequently Asked Questions

What is a CFO service in France? It is the engagement of an experienced senior head on a part-time, interim, virtual, or project basis to lead the company’s finance function — budgeting, forecasting, reporting, treasury, and board interaction — without a permanent hire. The mandate is structured around defined deliverables and a clear scope, calibrated to the company’s stage and the question being addressed.

How much does this cost in France? Fees are scoped per mandate, depending on company size, sector complexity, and the agreed scope. A part-time mandate is typically a fixed monthly retainer tied to deliverables. Ad hoc projects (transaction support, system migration) are scoped separately. We provide a fixed-fee quote after a brief diagnostic.

How does this differ from outsourced accounting in France? Outsourced accounting operates the ledger — bookkeeping, payroll, statutory accounts, tax filings — under the Plan Comptable Général. The CFO function runs the financial decision-making — strategy, planning, reporting, treasury, board interaction. The two are complementary and frequently combined: the outsourced accounting team produces the data, the senior head uses and presents it.

What is the difference between a fractional, interim, and virtual mandate? A fractional CFO is retained part-time on an ongoing basis. An interim mandate covers a defined period — typically during a transition or while a permanent senior is being recruited. A virtual mandate delivers most of the work remotely. The substance of the job — leadership, reporting, planning, treasury, controls — is the same; the format depends on specific requirements.

Is a CFO service appropriate for a PE-backed French company? Yes — especially in the first 100 days post-LBO and during certain value-creation phases. An experienced senior head with operating background and French regulatory depth can deliver the reporting, controls, and treasury rebuild required by the sponsor, while management focuses on operating priorities. The CFO service is calibrated to the size of the business and the sponsor’s reporting expectations.

Can the senior head interface with the commissaire aux comptes? Yes. The lead is, in practice, the company’s interface with the commissaire aux comptes during the audit cycle — preparing the audit file, handling queries, and resolving adjustments. Where Interexco is also the statutory auditor of the entity, the mandate is delivered by a different team to maintain auditor independence.

Does the lead help with fundraising and investor preparation? Yes. Preparing a fundraising round — equity, debt, mezzanine — is one of the most common reasons our clients engage a CFO service. The lead builds the model, prepares the data room, supports lender and investor dialogue, reviews term sheets, and represents the business in board meetings throughout the process. Identifying funding and investment opportunities is a core part of the job.

Is the CFO service led by a senior at Interexco? Yes. Our CFO mandates are senior-led and delivered by the same senior end-to-end. The lead assigned is the operational point of contact and remains so for the duration. Workstreams that require specialist input (tax, audit, social, IT) are drawn from the wider Interexco team under the lead’s direction. The relationship with the client is the responsibility of one named individual.

How quickly can a mandate start? Mandate start timelines are agreed at engagement scope, including diagnostic. In crisis or transition scenarios — sudden senior departure, urgent refinancing — accelerated start can be discussed, with a dedicated lead ready to take operational control of the function.

Speak With Our Team

If you are considering a part-time or interim CFO, preparing for a fundraising round or an exit, or rebuilding the function post-acquisition, speak with one of our senior team about your scope, calendar, and governance expectations. Our team is based at 30 Boulevard Haussmann, Paris 9e, with further offices in Lille, Milan, and Tunis. Interexco is a member of the OEC and CNCC and works in English, French, Italian, Spanish, Russian and Arabic.