Buying a Professional Client Base (Patientèle): What It Really Means for Liberal Professions in France

In French professional practice, the word "patientèle" describes the client or patient base of a regulated liberal profession — a general practitioner, a physiotherapist, a lawyer, an architect, a notary, or any other practitioner operating under a professional order. When a practice changes hands, the transaction is commonly described as "buying a patientèle." The expression is practical but misleading: what is actually transferred is not a group of people, but a set of professional conditions that may — or may not — allow the buyer to maintain a viable economic activity.

This distinction matters enormously. In France, patients and clients of regulated liberal professions retain the absolute right to choose their own practitioner. A transfer of patientèle does not create any obligation of continuity on their part. What the buyer acquires is the structural and relational context that makes continuity possible: a location, a lease, equipment, files, a handover period, and sometimes a non-competition clause.

In short: buying a patientèle means acquiring favourable conditions for professional continuity — not a guaranteed revenue stream. The real value depends on the quality of the handover, the degree of client dependency on the outgoing practitioner, and the precision of the transfer agreement.

A patientèle transaction typically involves several distinct elements. Not all of them transfer automatically, and the list should be explicitly defined in the transfer agreement.

This is the most frequently underestimated point in patientèle acquisitions. French law and professional ethics guarantee the freedom of every patient or client to choose their own practitioner at any time. A sale of patientèle does not override this right.

In practice, the buyer does not acquire:

• a captive clientele bound to remain;
• automatic revenue without relational or commercial effort;
• a right to retain every ongoing file without individual consent;
• an exemption from the deontological obligations of the profession.

The ethical framework varies significantly by profession. The Conseil National des Barreaux (CNB) has issued specific guidance for lawyers. Medical practitioners are governed by the Code de déontologie médicale. Architects, accountants, and notaries each operate under their own professional order rules. Any transfer agreement must be drafted in light of the specific regulatory framework applicable to the profession concerned — which is why legal counsel from a specialist lawyer is necessary alongside the accountant's work.

Market participants often refer to revenue multiples as a starting point — typically between 0.5 and 1.5 times annual fees depending on the profession. But this figure is only a baseline. Meaningful valuation requires a qualitative and economic assessment of several factors simultaneously.

Our reading: in the practice transfer files we work on, dependency on the outgoing practitioner is consistently the most undervalued risk. A charismatic practitioner with a long-established personal following represents a genuine transfer risk. Clients or patients may follow the person, not the location. A properly structured handover period — with explicit modalities written into the agreement — is often the only mechanism available to mitigate this risk.

For the seller, the proceeds from a patientèle transfer fall under the professional capital gains regime for BNC (bénéfices non commerciaux) practitioners, as set out in BOFiP reference BOI-BNC-BASE-30-10.

Two tax rates apply depending on the holding period:

• Short-term capital gains (asset held less than two years): taxed as ordinary income under the progressive income tax scale, with social contributions.
• Long-term capital gains (asset held more than two years): taxed at a reduced flat rate (currently 12.8% excluding social levies — to be verified against the applicable rules at the time of the transaction).

Two significant relief provisions may apply, subject to strict conditions:

• Article 151 septies of the Code Général des Impôts (CGI): full or partial exemption based on average revenues over the two preceding tax years. Thresholds should be verified at the date of the transaction as they may be adjusted by the annual Finance Act.
• Article 238 quindecies CGI: relief available on transfers of a complete business branch valued below one million euros (net of tax) — conditions to be examined in detail for each case.

The underestimated risk: sellers frequently discover the tax implications of their transaction after fixing the price. The fiscal charge reduces net proceeds, and by then negotiation is closed. Tax planning should precede valuation discussions, not follow them.

For the acquirer, the sum paid for the patientèle is recorded as an intangible asset on the balance sheet. It cannot be deducted as an expense in the year of acquisition. Amortisation rules differ depending on the buyer's tax regime — BNC personal practice versus a société d'exercice libéral (SEL or SELARL). This point requires a specific analysis based on the chosen structure.

When premises are included in the transfer, the professional lease (bail professionnel) is a significant asset in its own right. It can generally be assigned alongside the patientèle, unless the contract contains a prohibition clause.

Two requirements apply in all cases:

1. The landlord must be formally notified of the transfer — see Service-Public reference F24299.
2. The lease must be reviewed in full before any valuation discussion: remaining term, rent level, revision clauses, permitted use, and any dilapidations obligations.

A quality lease — long remaining term, market-rate rent, no restrictive use clause — can support the overall valuation. A lease close to expiry or with restrictive conditions represents a risk that the buyer should quantify and factor into the offer price.

It is common for the seller to commit not to practice in a competing capacity within a defined geographic area and for a defined period, and/or to formally introduce the buyer to existing clients or patients. These clauses are legitimate but must be carefully drafted.

They must:

• be proportionate in duration and geographic scope;
• respect the patient or client's freedom of choice;
• comply with the deontological rules of the profession concerned.

An overly broad non-competition clause may be voided by a court. An introduction clause that is poorly aligned with professional ethics may create liability. Drafting these provisions is the work of a specialist lawyer, not the accountant.

A general practitioner operating in sector 1 (Assurance Maladie conventional fees), practising for fifteen years in a semi-urban location, transfers their practice to a colleague. Average annual fees over the last three years: €180,000. Estimated patient retention after handover: 75%. Dependency on the outgoing practitioner: approximately 40% (a meaningful proportion of patients are personally attached to the practitioner, but a solid base is linked to the location and practice structure).

Indicative valuation:

• Base multiple applied to average fees: 0.8 × €180,000 = €144,000
• Dependency adjustment (−10%): −€14,400
• Location and lease quality premium (+5%): +€7,200
• Negotiated price: approximately €136,800

Seller tax position: asset held more than two years — long-term capital gains regime. Average revenues exceed the full exemption threshold under article 151 septies CGI — partial or no exemption. Reduced rate applies to the net gain (to be confirmed with the seller's tax adviser based on the rules in force at the date of transfer).

What this illustrates: the stated price is not the seller's net gain, nor the buyer's actual cost. Between the seller's tax charge, the buyer's financing costs, the cost of a structured handover, and any fit-out requirements, the gap between the headline price and the economic reality can be substantial for both parties.

1. Confirm what is legally transferable under the deontological rules of the specific profession.
2. Review at least three full years of financial records — revenue, nature of income streams, client concentration.
3. Assess the degree of practitioner dependency and agree on a handover period with explicit terms.
4. Review the professional lease in full before any valuation discussion.
5. List every element included and excluded from the transfer in the draft agreement.
6. Assess the tax implications for both seller and buyer before fixing the price.
7. Review non-competition and introduction clauses against applicable professional ethics rules.
8. Plan client or patient communication in compliance with GDPR and professional ethics.
9. Have the transfer agreement drafted by a specialist lawyer — this is not within the accountant's scope alone.
10. Confirm the operating structure for the buyer (personal BNC, SEL, SELARL) before completion.

The boundaries of professional scope matter in a patientèle transaction. The accountant's contribution covers four areas:

• Economic due diligence: reviewing three or more years of financial statements, identifying revenue trends, assessing client or patient concentration, and evaluating the practice's recurring income base.
• Tax modelling: calculating the expected capital gains charge for the seller, identifying applicable relief provisions (articles 151 septies and 238 quindecies CGI), and structuring the buyer's acquisition to minimise ongoing tax friction.
• Structure advice: helping the buyer choose the right operating vehicle — personal BNC practice, a société d'exercice libéral (SEL), or a SELARL — before the transaction completes, not after.
• Financing support: preparing financial projections, bank dossiers, and helping the buyer assess debt serviceability relative to expected practice revenues.

What falls outside the accountant's scope: drafting the transfer agreement, structuring the warranty and indemnity provisions, advising on profession-specific deontological compliance, and negotiating lease assignment terms. These require a specialist lawyer in regulated professions law. The two professionals work in parallel — each adds value the other cannot replicate.

Several factors make 2026 a particularly active period for liberal practice transfers:

• Wave of retirements: a large cohort of practitioners who established their practices in the late 1990s and early 2000s are now approaching or past retirement age. Supply of practices for sale is high in many regions and specialities.
• Finance Act thresholds: the exemption thresholds under article 151 septies CGI may be adjusted in the annual Finance Act. Verify the applicable figures at the date of your transaction rather than relying on prior-year values.
• GDPR compliance: regulators have increased scrutiny of data transfers in professional practice sales, particularly in healthcare. The process for notifying and obtaining consent from patients before transferring their records should be formalised in the transfer agreement.
• SEL reform implications: practitioners considering a structural change alongside the transfer — for example, moving from personal BNC practice to a SELARL — should review the tax implications of the 2024-2025 SEL reform before proceeding. See our analysis on the SELARL BNC reform and transitioning from BNC to SELARL as a doctor.

This English section is written for international readers who need to apply the French guidance to a real management decision. The key point for buying a French liberal-profession patient or client base (patientèle) is not to memorise every technical rule, but to connect the rule to documents, deadlines, cash impact and governance. For doctors, dentists and other liberal professionals considering the purchase of an existing practice, the right approach is to identify the decision to be made, collect reliable evidence, and only then choose the accounting, tax, payroll or legal treatment.

The practical decision is which valuation method, financing structure and continuity clauses must be documented before signing. That decision should be documented before the year-end close, financing discussion, payroll run, transaction signing or tax filing concerned by the topic. When the matter is material, the file should include who decided, which assumptions were used, and which professional advice was obtained.

Evidence to keep#

• patient turnover statistics;
• retention clause draft;
• transition plan;
• financing offer;
• tax-deduction memo;

A patientèle purchase without a retention clause, transition plan and conflict-of-interest review rarely delivers the expected revenue. A clean file also helps the company answer questions from banks, investors, auditors, tax authorities, employees or buyers. It is usually cheaper to prepare that evidence during the process than to reconstruct it after a dispute, audit or urgent financing request.

Management checklist#

Before acting, management should run a short checklist. First, confirm that the entity, period and perimeter are correct. Second, compare the accounting treatment with the tax, payroll or legal consequence. Third, quantify the cash effect, because a technically valid option may still be unsuitable if it creates a short-term liquidity issue. Fourth, make sure the decision can be explained in plain English to a shareholder, lender, employee or buyer who is not familiar with French terminology.

For French subsidiaries of foreign groups, translation is also a control topic. A term that sounds familiar in English may not have the same legal meaning in France. The safer method is to keep the French source wording in the working file, then add a short English management note explaining the decision, the financial effect and the residual risk.

How Hayot Expertise would frame the work#

In a professional review, the starting point is the business objective. Is the company trying to reduce risk, close the accounts, prepare a filing, obtain financing, retain employees, sell a business or improve reporting? Once the objective is clear, the technical analysis becomes more useful because it is attached to a concrete decision. Hayot Expertise would generally separate the work into three layers: compliance, numbers and management judgement.

The compliance layer answers whether a rule applies and which documents are required. The numbers layer measures the effect on profit, tax, payroll, cash, equity, valuation or working capital. The management layer decides whether the option is consistent with the company's strategy and risk appetite. This separation avoids a common mistake: treating a French technical rule as if it were only an administrative formality.

A fuller decision framework#

For a director who does not work daily with French accounting and tax rules, the safest framework is sequential. Start with the legal form and tax regime of the business. Then identify the income stream, expense, asset, employee benefit, transaction or reporting obligation concerned. Then test the accounting treatment, the tax treatment and the cash effect separately. Only after those three views are consistent should the company automate the process in accounting software or payroll.

This matters because French compliance is document-heavy. A bank feed, invoice, contract, payroll notice or tax form may each be correct on its own, while the overall file remains inconsistent. For example, the accounting entry may not match the tax return, the VAT position may not match the invoice wording, or the management report may not match the board minutes. English-speaking directors should therefore ask for a short reconciliation note whenever the amount is significant.

Questions to ask before closing the file#

• What is the exact French rule or accounting principle being applied?
• Which document proves the amount, date, counterparty and business purpose?
• Does the treatment affect VAT, corporate tax, income tax, payroll or social contributions?
• Is the cash impact immediate, deferred or only visible at sale, audit or financing?
• Who inside the company owns the update next year?

Why this improves SEO and real usefulness#

For an English reader, the value of this article is not a literal translation of the French version. It is the bridge between French terminology and management action. The content should help the reader understand what to verify, what to ask the accountant, and where the risk may sit in the financial statements or cash forecast. That is also the reason the English version keeps the French concepts visible while explaining them in operational language.

When to ask for help#

Professional input is useful when the topic changes the tax result, payroll cost, legal position, financing capacity, valuation or shareholder relationship. It is also useful when the company is growing quickly and the same decision will repeat every month. A small error in a one-off file is inconvenient; the same error embedded in a recurring workflow becomes expensive.