Accountant Termination Letter in 2026: Template and Steps

Updated 12 May 2026. Changing your accountant is neither a hostile act nor a mere administrative formality. It is the termination of a service contract framed by the letter of mission, the French Order of Chartered Accountants founding ordinance no. 45-2138 of 19 September 1945, and the chartered accountants' code of ethics (Decree no. 2012-432 of 30 March 2012). For a director in Paris, a successful transition rests on six clear steps: selecting the new firm, sending a termination letter by registered mail with acknowledgement of receipt, settling the fees due, organising the file transfer (article 21 of the code of ethics), notifying the tax and social administrations, and stabilising the successor's first months of work. The aim is not to leave a colleague, but to safeguard your company's accounting, tax and payroll continuity.

Article 11 of the 1945 ordinance and the letter of mission#

In France, the relationship between a company and its chartered accountant must be formalised in a letter of mission. Article 11 of Ordinance no. 45-2138 of 19 September 1945, together with article 151 of the OEC code of ethics, imposes this written formalisation. The letter sets out the identity of the parties, the precise scope (bookkeeping, review, preparation of annual accounts, advisory, payroll, annual legal work), the fees, the billing arrangements, the responsibilities, and the termination conditions. Without a letter of mission, the chartered accountant is exposed to a disciplinary sanction from the Order, and the client loses visibility on their rights.

Typical duration and tacit renewal#

The letter of mission is generally entered into for one year, aligned with the financial year, with a tacit renewal clause. Some firms operate a three-year multi-year engagement, which is less common. A standard termination clause provides for a three- to six-month notice period, binding on both parties. A six-month notice before the financial year end is frequently required for review or audit engagements, to preserve the continuity of the closing process.

Fees and scope of the engagement#

The scope determines the invoice: a bookkeeping-only engagement (data entry, VAT returns) costs less than a comprehensive engagement covering annual review, balance sheets, the tax bundle (forms 2050 to 2059), the 2065 return, and advisory work. Before any termination, you need to know what your current engagement actually covers, and therefore what you will expect from your successor. This mapping prevents blind spots at the moment of transfer. You can extend this reading with our article on how to change accountant, which details the selection phase of the new firm.

Evolving needs and complexity#

A small business that crosses the €1M turnover mark, hires its first employees or prepares a fundraising round sees its needs evolve. Pure compliance is no longer enough: it needs a forecast, margin tracking, a dashboard, possibly an outsourced CFO. If the historic firm remains anchored to a bookkeeping engagement, the gap becomes structural. This is one of the most frequent reasons for change in the files we take over in Paris.

Lead times, proactivity, advisory work#

Annual accounts delivered four months after closing, VAT returns filed on the 19th instead of the 15th, no annual review meeting, no tax planning ever initiated: these signals are not a moral criticism of the colleague, but an operational observation. The director is entitled to a reading of the figures that is useful for action. When that reading is absent, the gap between needs and offering justifies a change.

Sector and technology specialisation#

Some sectors — construction with subcontracting and VAT self-billing, restaurants with certified cash registers, residential rental property (LMNP/LMP), multi-country e-commerce with OSS/IOSS, regulated professions with BNC accounts — call for a specialisation that not every firm offers. Moving to a modern tool such as Pennylane or Indy can also justify a change if the outgoing firm refuses to migrate. Internationalisation, a relocation to Paris from the provinces, the creation of a holding structure, or a sale being prepared are all legitimate triggers.

Due diligence by the new firm#

Before any termination letter, the successor must be identified, met and chosen. The new firm conducts a preliminary diligence: review of the last three balance sheets, quick reading of the tax bundle, identification of the accounting software used, mapping of specifics (subsidiaries, shareholder current accounts, complex debts, litigation). This diligence allows the successor to price the letter of mission accurately and to tell you what absolutely must be recovered from the outgoing firm. At Cabinet Hayot Expertise in Paris, this diagnostic phase is free and built into our Paris 8 accounting and audit services.

Historical takeover of 1 to 3 financial years#

Historical takeover means reloading the accounting entries of the last one to three financial years into the new tool, verifying opening balances, and reconciling with the accounts filed at the commercial court registry. It is a 5- to 20-hour task depending on volume. Without this takeover, the successor works blind. With it, they deliver a meaningful comparative reading from the first full financial year and may detect a tax error or a missed optimisation.

Priced and clear letter of mission#

The new letter of mission must be signed before sending the termination letter to the outgoing firm. This avoids any gap in professional cover. It specifies the scope, the transition calendar, year-1 fees (often slightly uplifted to absorb the historical takeover) and the meeting cadence (monthly, quarterly, annual review point). Under the code of ethics, the new firm then writes to the previous firm to notify it of the file takeover — this is the collegiality rule of article 21 of Decree no. 2012-432, which structures the entire ecosystem of the profession.

Form — registered mail, effective date, notice#

The termination letter must be sent by registered mail with acknowledgement of receipt (in France, lettre recommandée avec accusé de réception, or RAR). This method gives a certain date to the notification, which secures the notice calculation. The intended effective date must respect the contractual notice — typically three to six months. Bearing the financial year end in mind is essential: sending the letter two months before closing places both the outgoing and incoming firms in a difficult position for the continuity of the closing process.

Essential mentions to include#

The letter restates the identity of the company (corporate name, SIREN number, address), refers to the letter of mission (signature date, subject), records the decision to end the engagement, the intended effective date, the request to transmit the file to the new firm (identity and address of the successor), and the commitment to settle fees due for completed work. The tone remains professional and neutral. No criticism of the outgoing colleague is useful, and article 21 of the code of ethics imposes collegiality between chartered accountants — a rule that also protects the client by limiting friction at the time of transfer.

Template letter to adapt#

[Corporate name of the company]
[Full address, SIREN]
[Date]

[Name and address of the outgoing firm]
For the attention of Mr/Ms [Name]
Chartered accountant (expert-comptable diplômé)

Subject: Termination of the letter of mission dated [date] — registered mail

Dear Sir or Madam,

Pursuant to the terms of the letter of mission signed on [date], we hereby
notify you of our decision to end your engagement of [bookkeeping / review /
preparation of annual accounts / advisory] for [Company name], with an
effective date of [date], respecting the contractual notice period of
[X months].

We further request, in accordance with article 21 of the chartered
accountants' code of ethics (Decree no. 2012-432 of 30 March 2012), that
all of our accounting, tax and payroll documents be made available, and
that these items be transmitted to [Name of new firm], located at [full
address], which will take over your engagement from [effective date].

As regards fees due for work completed up to the effective date, we
remain available to settle them prior to the final transmission of the
file.

We would be grateful if you would acknowledge receipt of this letter,
and we remain at your disposal for any information useful to the smooth
organisation of the transition.

Yours faithfully,

[Director's signature]
[Company stamp]

Pro rata up to the effective date#

Fees are due for the work completed up to the effective date of the termination. If a monthly bookkeeping engagement was performed for ten months out of twelve, ten twelfths of the annual fees are due, plus any one-off work billed at time spent. For an unclosed financial year, an interim balance sheet cannot be invoiced as long as it has not been produced, save for a specific contractual clause.

No exit penalty as a general rule#

French law does not generally accept an exit penalty on a chartered accounting engagement. A contractual clause providing for a lump-sum rupture indemnity is rare and is frequently reclassified by the courts. If such a clause appears in your letter of mission, it should be read carefully and, if necessary, its validity discussed. The code of ethics also prohibits any aggressive commercial practice or abusive loyalty penalty.

Settlement and transfer conditions#

As a general rule, the outgoing firm has no right to retain the client's documents over a fee dispute — abusive retention is sanctioned through disciplinary proceedings. In practice, a clean settlement and a swift payment facilitate cooperation on the transfer. A dispute over the exact amount of fees should not block the release of the documents: it is handled separately, through mediation before the regional council of the Order (CROEC).

Accounting and tax records to recover#

Article 21 of the OEC code of ethics states: "When the chartered accountant is divested of a file, they shall without delay deliver to the successor or to the client all documents necessary for the continuation of the work." Items to recover include client and supplier invoices for the past five years, bank statements, expense claims, up-to-date bylaws, the Kbis extract, minutes of shareholders' meetings, group insurance and health agreements, and employment contracts. Originals belonging to the client must be returned as of right; documents constituting the firm's own working papers fall under the duty of professional disclosure framed by ethics.

FEC file, balance sheets, tax bundles, payroll filings#

Recovery should include the FEC file (Fichier des Écritures Comptables) in its regulatory format — its retention is mandatory for ten years under article L102 B of the French Tax Procedure Code (LPF) — together with the balance sheets, income statements and notes of the past five financial years, tax bundle forms 2050 to 2059, the 2065 corporate income tax return, amortisation schedules, the general ledger, the trial balance, the journal, monthly DSN payroll filings, CA3 VAT returns, and structural supplier contracts. For an overall understanding of the annual cycle being transferred, you can go further with our article on chartered accountant engagements.

Legal timeframe and prohibition of abusive retention#

The code of ethics requires the documents to be released "without delay." In practice, a fifteen- to thirty-day window is accepted to properly prepare the transfer. Beyond this, the client may refer the matter to the CROEC for abusive retention. Such a referral triggers a mediation procedure which, in the vast majority of cases, results in the transmission of the documents without recourse to the courts. Extended retention exposes the outgoing firm to sanctions ranging from a warning to temporary exclusion, which makes this practice extremely rare in the Paris market.

Tax mandate (DGFiP) and payroll declarant (URSSAF)#

The chartered accountant acts as tax mandatary for electronic filings with the French tax authority (VAT, corporate income tax, CVAE) and as third-party social declarant for the DSN with URSSAF. A change of firm therefore requires updating these mandates. In concrete terms, the new firm retrieves the EDI codes and the digital certificates needed for electronic transmissions, and registers the change of mandatary on the impots.gouv.fr and net-entreprises.fr portals. This technical switch ideally takes place within fifteen days following the effective date.

Continuity of DSN, VAT and corporate income tax filings#

Monthly DSN payroll filings are the most sensitive: a missed DSN triggers URSSAF penalties (article R243-13 of the Social Security Code) and weakens employees' social rights. VAT returns are equally critical, on the monthly or quarterly cadence applicable to the company. Corporate income tax follows the closing calendar. The switch calendar must therefore be negotiated between the two firms, and the successor's letter of mission must specify who produces what for the transition month.

Bank and other mandataries#

Some companies grant their accountant a limited power of attorney on their bank account (payment of social contributions, VAT transfers). This mandate must be revoked and either reassigned to the new firm or taken back in hand by the director. No specific notification is owed to the commercial court registry — the chartered accountant does not appear on the Kbis. On the other hand, if you also change banking partner or payroll provider at the same time, the timeline must be sequenced to avoid overlaps.

Verifying document completeness#

On receipt of the documents, the new firm verifies completeness: presence of the FEC file over the past five years, opening balance for the latest financial year, tax and social filings on record, supporting documents for significant client and supplier balances. A written checklist, signed by both parties, is the recommended practice. Any missing item should be the subject of a written additional request, citing article 21 of the code of ethics.

Reconciliation against existing accounts#

The successor reconciles opening balances with the annual accounts filed at the commercial court registry. Any divergence — equity, shareholder current accounts, trade payables, fixed assets — is recorded in writing. This reconciliation is an act of professional prudence: it protects the client in the event of a later tax audit, and it protects the new firm against liability claims for errors predating its appointment.

First full review meeting with the new firm#

Within thirty to sixty days following the switch, a first full review meeting brings together the director and the successor. The agenda: shared reading of the last balance sheet and tax bundle, identification of historic tax and social choices, validation of internal operating rules (monthly transmission of documents, meeting cadence, sharing tools), construction of the annual calendar. The value added by the successor over the next twelve months is set during this meeting.

Mediation through the CROEC#

The Regional Council of the Order of Chartered Accountants (CROEC) offers a mediation service open to both clients and professionals. In the event of a dispute over fees, retention of documents or quality of the work performed, a referral to the CROEC triggers an amicable mediation. It is fast (a few weeks) and free. It succeeds in a majority of cases, while preserving the possibility of bringing court proceedings if the mediation fails.

Civil liability action (five-year prescription)#

If an error by the outgoing chartered accountant has caused harm (tax surcharge, social adjustment, loss of an advantage), the client may bring a professional civil liability action. The prescription is five years from knowledge of the damage (article 2224 of the Civil Code). The chartered accountant's mandatory professional indemnity insurance (article 17 of the 1945 ordinance) covers compensation, which makes such actions practicable without risk of an insolvent counterparty.

Disciplinary sanctions for abusive retention#

Abusive retention of documents (refusal to release despite reminders and a regularised balance) is sanctioned through disciplinary proceedings before the regional disciplinary chamber of the Order. The sanction scale runs from a warning to temporary suspension, and even disbarment in the most serious cases. In Paris practice, these situations remain rare: the vast majority of colleagues respect article 21, and transitions are organised in a spirit of cooperation.

During a tax or social audit#

An ongoing tax audit (on-site accounting verification, remote accounting examination) or an URSSAF audit should be taken through to completion with the historic firm, which knows the file. Changing during an audit weakens the defence: the new firm lacks context, and the outgoing firm no longer holds the mandate. It is preferable to wait for the audit closing notification, or even the response to a possible proposed rectification, before triggering the transition.

During a sale or fundraising#

A business sale or fundraising round rests on a diligence process (data room, buyer audit, investor audit). Buyers and investors generally require continuity of the accounting provider until closing. Changing in the middle of a transaction disorganises the production of financial data and signals fragility. The simple rule: do not change during the six to nine months of a capital transaction.

Too close to financial year end#

Changing two months before financial year end is technically possible but costly. The successor must absorb a history without having structured their organisation, and the outgoing firm must produce a last closing it will not follow up. Ideally, the switch takes place three to six months after closing, that is, at the start of the next financial year. This window leaves time to consolidate the historical takeover before the next closing. To understand the annual closing mechanics and place them in this calendar, you may consult our accounting and audit blog library.

The trade-off — change or improve the relationship#

Before changing, ask yourself whether a candid reframing of the letter of mission would not suffice. In around 60 to 70% of the files we diagnose, the real issue is not the outgoing firm's incompetence, but an initial scoping defect: blurred perimeter, undefined deliverables, meeting cadence too spaced, contact too junior for the file's complexity. Asking for a revised letter of mission, with dated deliverables and response SLA, may be enough. If, after three to six months of explicit reframing, quality does not improve, then changing firm — or stepping up to an outsourced CFO service for startups and SMEs in Paris — becomes the right decision.

The underestimated risk — incomplete transfer and accounting discontinuity#