Asset and liability warranties in French M&A 2026: key clauses, scope, and security

An asset and liability warranty (garantie d'actif et de passif, GAP) is a contractual clause in a share sale under which the seller undertakes to compensate the buyer if a liability predating the sale comes to light or an asset proves overstated. It is not a statutory guarantee: its cap, threshold and duration are negotiated. Risks listed in the disclosure letter are excluded. The tax warranty should cover at least the standard three year tax reassessment period (article L169 of the French tax procedure code), and it is often secured by an escrow, a bank guarantee or W&I insurance.

Updated 25 May 2026. In a French share sale, the garantie d'actif et de passif (GAP) — the French equivalent of Warranties and Indemnities (W&I) — is the contractual clause that allocates between seller and buyer the economic risk of hidden liabilities and overstated assets. Due diligence maps the risks; the GAP transfers them contractually. For a selling director in Paris, the GAP drafting can reduce net proceeds far more significantly than the spread between two competing bids. For the buyer, a poorly drafted GAP leaves the door open to costly post-closing surprises. This article analyses the GAP in practical terms — definition, scope, critical clauses, statutory durations, financial security, and claim procedure — from both seller and buyer perspectives.

A sui generis contractual undertaking under French freedom of contract#

The GAP is not a statutory guarantee: it is a contract governed by Article 1102 of the French Civil Code, which enshrines freedom of contract. It draws on the Anglo-Saxon model of Representations and Warranties and supplements the statutory guarantees: warranty against eviction (Article 1626 of the Civil Code) and warranty against hidden defects (Article 1641). These statutory guarantees are judged insufficient in an M&A context because they cover the object of the sale (the shares themselves, not the target's patrimony) and do not allow the parties to modulate durations, caps, or exclusions according to specific risks.

The GAP also differs from fraud (dol) under Article 1137 of the Civil Code: intentional misrepresentation by the seller creates liability independently of the GAP and may found an action for annulment of the contract. The disclosure letter does not protect a seller who has deliberately concealed a material risk.

GAP vs due diligence: two complementary mechanisms#

Due diligence (DD) is a pre-closing audit exercise — accounting, tax, social, legal, IP, IT — that maps the target and reduces information asymmetry between seller and buyer. The GAP is a post-closing mechanism: it organises the buyer's indemnification if a latent liability not identified during DD materialises after closing. A GAP without prior DD is an empty shell: the buyer does not know what risks are actually covered. A DD without an exit GAP leaves the buyer alone facing residual liabilities.

In the share sale transactions Cabinet Hayot Expertise handles in Paris, one of the most costly mistakes is treating DD as a substitute for the GAP: on the contrary, the DD determines the substance of the GAP — what is known is excluded via the disclosure letter; what remains unknown is covered.

Asset warranty: existence, value, assignability#

The asset warranty covers the reality and value of items recorded on the reference balance sheet. It covers:

• Physical existence and recoverable value of inventory
• Reality and collectibility of trade receivables (a EUR 200K receivable declared good but in fact 80% provisionable triggers the warranty for EUR 160K)
• Net book value of tangible and intangible fixed assets
• Full ownership of trademarks, patents and software (absence of third-party rights, infringement, expired licences)
• Assignability of material commercial contracts (change of control clauses or consent requirements)

Liability warranty: completeness and compliance#

The liability warranty covers the completeness of disclosed liabilities. It targets items not recorded or under-recorded:

• Trade payables not yet booked at the reference balance sheet date
• Off-balance-sheet commitments: guarantees given, remaining lease commitments, finance lease obligations
• Latent social liabilities: unprovisioned end-of-career indemnities, pending labour-court claims
• Tax liabilities: corporate income tax, VAT, registration duties, improperly claimed tax credits
• Pending litigation insufficiently or entirely unprovisioned

Explicit exclusions and the disclosure letter#

The scope of the GAP is bounded by the disclosure letter, an annex to the SPA listing known risks. A risk explicitly disclosed is excluded from the GAP: the buyer was aware at signing and incorporated this risk into the purchase price. Disclosure discipline is the seller's primary tool: it is better to disclose a manageable risk and have it excluded than to remain silent and face a post-closing claim. The SPA also lists generic exclusions: losses from post-closing buyer decisions, legislative changes after signing, liabilities arising from the transaction itself.

The overall cap#

The cap is the maximum indemnification amount the seller may be required to pay, across all claims. Market practice in 2026 for Paris-based SMEs and mid-cap companies sets the general cap between 20% and 30% of the transfer price. For the specific tax and social warranty, a dedicated cap of 50% to 100% may be required by the buyer on sensitive transactions. On a EUR 5M deal, a 30% general cap represents a maximum seller liability of EUR 1,500,000.

The de minimis threshold and the basket (deductible or tipping bucket)#

Two filters prevent minor claims from saturating the post-closing relationship.

The de minimis is a per-claim floor: below this amount (typically EUR 20,000 to EUR 50,000 depending on deal size), an individual loss cannot be notified. The basket is a cumulative threshold: the GAP is triggered only once the total of eligible notified claims exceeds an aggregate amount (example: EUR 75,000).

The basket can be a deductible: the threshold is borne by the buyer, who is only indemnified above it. Or a tipping bucket: once the threshold is reached, the seller indemnifies from the first euro of all eligible claims. The tipping bucket mechanism is substantially more favourable to the buyer; the deductible is more favourable to the seller.

Practical trade-off. A sophisticated seller may accept a tipping bucket provided the basket is set above 1% of the transfer price. A buyer must ensure the de minimis does not allow a cumulation of individually small but collectively significant risks to go unnoticed.

Duration: calibration against statutory limitation periods#

The duration of the GAP must be analysed by risk category, not globally.

Specific tax warranty (GFS). Article L169 of the French Tax Procedures Code sets the tax authority's reassessment limitation period. For corporate income tax and VAT, the limitation runs until 31 December of the third year following the relevant tax year. In cases of fraudulent conduct, this period is extended to six years. For concealed activity, it rises to ten years. A GFS of 24 months is systematically insufficient when the standard tax limitation period runs for three years. The minimum reasonable duration is three years plus one year of buffer, i.e. four effective years.

Specific social warranty (GSS). Article L244-3 of the French Social Security Code provides that the right to collect contributions is time-barred after three years, extended to five years where remuneration has not been declared. The GSS should run a minimum of three years, and preferably five years on risk files.

General cover. Twenty-four months is the market standard for operational risks that are neither tax nor social: commercial contracts, structural defects, customer disputes.

The claim procedure: formalism that conditions the right to indemnification#

The SPA precisely sets out the claim procedure: form (registered letter with acknowledgement of receipt at the seller's address in the SPA), notification deadline from discovery of the loss (typically 15 to 30 days, sometimes five to ten days for tax losses where the target must respond to the authority within a constrained deadline), mandatory content (description of the triggering event, initial quantified estimate, supporting documents). Failure to comply may result in permanent forfeiture of the indemnification right. Drafting this clause requires an experienced M&A lawyer.

Escrow#

The most commonly used mechanism: a fraction of the transfer price (10% to 20%) is blocked with a third-party escrow agent for the main warranty duration, typically 18 to 24 months. At maturity, absent any notified claim, the balance is released to the seller. On a EUR 5M deal, a 10% escrow immobilises EUR 500,000 — a significant opportunity cost for the seller.

First-demand bank guarantee#

An alternative to escrow: the seller delivers a first-demand bank guarantee issued by a top-tier bank. The buyer can draw on the guarantee without contradictory proceedings upon a recognised loss. Cost for the seller: annual bank commission of 0.5% to 1.5% of the guaranteed amount. The bank guarantee frees the seller's cash but carries a recurring cost.

W&I insurance (Warranty & Indemnity)#

W&I insurance, most often subscribed by the buyer (buyer-side policy), covers losses arising from claims under the GAP. The insurer steps into the seller's shoes for indemnification and handles the claim file. On the Paris mid-cap market in 2026, W&I premiums fall indicatively between 1% and 2% of insured capital (to be confirmed at time of transaction). For a EUR 1,500,000 cap, the premium is indicatively between EUR 75,000 and EUR 150,000. W&I offers three major advantages: it frees the escrow at closing, it allows coverage to extend beyond civil-law prescription (up to seven years for tax with some underwriters), and it eliminates direct seller-buyer litigation in the event of a claim.

Escrow vs W&I trade-off. Below EUR 2M between parties of mutual trust: escrow is sufficient. Between EUR 2M and EUR 5M: trade-off depends on the target's tax risk profile. Above EUR 5M: W&I is recommended and is becoming the standard on the Paris mid-cap.

GFS: articulation with the LPF limitation periods#

The GFS is the most frequently triggered sub-warranty in share sale transactions that Cabinet Hayot Expertise handles in Paris. The most common tax risks in a sold SME: corporate income tax on non-yet-prescribed financial years (disputed loss carry-forward, research tax credit at risk of reclassification, non-deductible charge missed during DD), VAT (improper deduction, margin VAT, intra-Community issues), CVAE or CFE (erroneous declared base).

The tax limitation under Article L169 LPF distinguishes: standard (three years from 31 December of the relevant tax year), fraudulent conduct (six years), concealed activity (ten years). A GFS should cover at minimum the three pre-closing financial years not yet prescribed, resulting in an effective duration of three to four years combined with the signing-to-closing timeline.

The seller's interest is to have the accounting firm audit tax returns before the buyer's DD, to identify and regularise anomalies in advance and populate the disclosure letter precisely.

GSS: articulation with the social limitation period#

Article L244-3 of the French Social Security Code sets a three-year limitation period for contribution collection, extended to five years where remuneration has not been declared. The most common risks: misclassified employees, benefits in kind not subjected to contributions, under-reported contribution bases, unjustified expense claims reclassifiable as taxable remuneration. The GSS should run a minimum of three years, with an extension clause to five years on risk files.

The GAP and the earn-out coexist in the same SPA. The earn-out conditions part of the price on future performance; the GAP covers pre-closing liabilities. A significant GAP loss can affect the target's results used as the earn-out base: the SPA must specify whether GAP payments are neutralised in the earn-out calculation. For a detailed analysis of earn-out structuring, see our article on earn-out in company disposals: structure and pitfalls.

When the seller stays alongside the buyer during the earn-out period, the quality of the transition matters as much as the clauses: a dedicated article covers preparing the human side of the handover between seller and buyer.

When the buyer structures the acquisition through a holding company, the GAP beneficiary must be unambiguously identified in the SPA. This question is frequently poorly drafted in small deals. Our article on share contribution to a holding company: tax regime and conditions details holding structuring mechanisms and the tax consequences of interposing a holding in an acquisition.

A Paris-based IT services SAS is sold for EUR 5M. The due diligence conducted by Cabinet Hayot Expertise identifies three main risks: a pending unfair dismissal claim of EUR 45,000 unprovisioned, a EUR 120,000 research tax credit at risk of reclassification, and EUR 30,000 per year in poorly documented management expense claims potentially reclassifiable as benefits in kind. The negotiated GAP:

• General cap: EUR 1,500,000 (30% of price)
• GFS (dedicated cap): EUR 2,500,000 (50%), duration 4 years aligned with LPF art. L169
• GSS (dedicated cap): EUR 1,000,000 (20%), duration 3 years aligned with CSS art. L244-3, extended to 5 years in the event of a URSSAF audit on expense claims
• De minimis: EUR 25,000 per individual claim
• Basket: EUR 75,000 as tipping bucket
• General duration: 24 months
• Security: EUR 500,000 escrow (10% of price) released 50% at 18 months and 50% at 24 months absent any pending claim
• Disclosure letter: unfair dismissal claim disclosed and excluded from the GAP; research tax credit listed as an identified known risk with partial coverage in the GFS depending on drafting precision

Key lesson: the seller who had conducted a pre-sale audit obtained more favourable drafting — excluding the known unfair dismissal claim via the disclosure letter — than a seller discovering these risks under the pressure of the buyer's DD process.

The GAP is the most technical clause of the SPA and the most directly linked to the net proceeds the seller will actually receive. In the transactions Cabinet Hayot Expertise handles in Paris, three recurring patterns stand out.

First pattern: the seller who negotiates the price then concedes on the GAP. A 50% cap, a EUR 50,000 tipping bucket and a 24-month GFS on a EUR 5M deal expose the seller to EUR 2.5M of potential claims. The GAP is an integral component of the price, not a secondary formality.

Second pattern: the GFS under-calibrated at 24 months. A GAP with a 24-month tax duration on a target whose N-1 and N-2 financial years are not yet prescribed at closing leaves the buyer without cover over the remaining LPF art. L169 limitation window. We systematically recommend a GFS of four years.

Third pattern: absence of W&I on mid-range transactions. On a deal between EUR 3M and EUR 10M, the W&I premium of 1% to 2% is often perceived as unnecessary. Yet a EUR 500,000 escrow held for 24 months also carries a real opportunity cost, without offering the tax coverage duration or the relational neutrality of W&I.

For support on pre-sale audit, GAP structuring on the seller side, or due diligence on the buyer side, Cabinet Hayot Expertise intervenes in Paris alongside the client's M&A lawyer. Our engagements fall under our strategic advisory offering, our Paris tax advisory practice, and our Paris statutory audit service.

For the seller before signing:

• Conduct a pre-sale accounting, tax and social audit to populate the disclosure letter
• Identify financial years not yet prescribed under LPF art. L169 and CSS art. L244-3
• Negotiate a general cap at or below 30% of price with a high-threshold deductible basket
• Require an information access right to prepare a defence if a claim arises
• Verify the disclosure letter is sufficiently precise to exclude known identified risks

For the buyer before signing:

• Require a GFS duration aligned with the LPF limitation period (minimum 3 years, ideally 4 years)
• Require a GSS duration aligned with the social limitation period (minimum 3 years, ideally 5 years on risk files)
• Assess seller solvency and select appropriate security: escrow, first-demand bank guarantee, or W&I
• Verify the GAP beneficiary is unambiguously identified (acquisition holding or target company)
• Include an automatic extension clause when a tax or social audit opens before the GAP expires

Sources: Légifrance — Civil Code art. 1102, 1137, 1626, 1641; LPF art. L169; CSS art. L244-3; BOFiP BOI-BIC-PDSTK-10-20-70.