How France's 2026 Finance Act Will Change M&A, Lbos and Private‑equity Deals, Practical Steps for Buyers, Sellers and Sponsors

The Loi de finances pour 2026, published in the Journal Officiel in late December 2025, has introduced a set of fiscal measures that are already reshaping how mergers, acquisitions and leveraged buyouts are structured, priced and documented in France. For deal teams navigating the finance act France M&A landscape in 2026, the headline changes, a new patrimonial‑holding tax, tightened interest‑deduction ceilings, and transpositions of EU DAC9 and OECD Pillar Two reporting obligations, go well beyond routine fiscal housekeeping. Each measure directly affects deal economics, return modelling, SPA drafting and post‑closing compliance. This playbook translates those statutory changes into concrete steps that general counsel, CFOs, private‑equity sponsors and M&A advisers can action immediately.

Executive Summary: Immediate Actions for Buyers, Sellers and Sponsors

Before diving into each measure, deal teams should prioritise the following actions to avoid value leakage and compliance gaps under the finance act 2026 France provisions:

• Re‑run holding‑structure analysis. Determine whether any topco, midco or holding vehicle in the deal chain triggers the new patrimonial‑holding tax. If so, model the incremental cost and evaluate pre‑closing reorganisation options.
• Stress‑test LBO debt stacks. Apply the tightened interest‑deduction limits to every layer of acquisition financing, senior, mezzanine, vendor loans and management loans. Identify where deductions will be denied and quantify the impact on post‑tax cash flow and IRR.
• Update SPA tax representations and indemnities. Existing template language almost certainly omits carve‑outs for the patrimonial‑holding tax and the new reporting obligations. Add specific representations, extend survival periods, and recalibrate caps and escrow amounts.
• Request DAC9‑ready data from sellers early. Cross‑border transactions now carry additional disclosure triggers. Include DAC9 and Pillar Two data points in your due‑diligence request list from the letter‑of‑intent stage.
• Model Pillar Two top‑up tax exposure. Where the target group operates in low‑tax jurisdictions, the acquirer’s consolidated effective tax rate may change post‑closing. Run sensitivity analyses at the LOI stage, not completion.
• Reconsider deal timing. Certain measures apply to fiscal years opening on or after 1 January 2026. Closing a day earlier or later can shift the tax burden materially. Align completion dates with fiscal year‑end calendars.
• Brief lenders and co‑investors. Syndicated lenders, mezzanine providers and LP co‑investors all need to understand how the new rules change covenant headroom and cash‑sweep mechanics.
• Engage local counsel with transactional tax expertise. The interplay between the patrimonial‑holding tax, interest limitation rules and Pillar Two requires integrated advice, pure tax analysis is no longer sufficient.

Quick Summary of the Finance Act 2026 Measures That Affect M&A

The Loi de finances pour 2026, the statutory text governing France’s federal budget and fiscal framework, contains several provisions that directly alter the economics and compliance requirements of corporate transactions. Below is a statutory snapshot of the four clusters of measures most relevant to deal teams, as published in the official text available on Legifrance and interpreted by administrative guidance on impots.gouv.fr.

Patrimonial‑Holding Tax: Scope and Thresholds

The Finance Act introduces a dedicated levy targeting holding companies whose asset base is predominantly composed of real‑estate assets, financial investments, or passive income‑generating assets. Companies meeting the relevant asset‑composition threshold face an additional annual tax charge. The measure is designed to curtail the use of intermediate holding layers for tax‑optimisation purposes, and it applies to fiscal years opening on or after 1 January 2026.

Interest Deduction Tightening

France has progressively constrained the deductibility of interest expenses on related‑party and intra‑group debt since implementing the EU Anti‑Tax Avoidance Directive (ATAD). The 2026 Finance Act further narrows these limits by lowering the deductible proportion of net interest expenses relative to EBITDA and introducing additional restrictions on interest paid on minority shareholder loans and vendor financing. These rules apply to interest accrued in fiscal years beginning on or after 1 January 2026.

DAC9 Transposition and Pillar Two Implementation

France has transposed the EU’s Directive on Administrative Cooperation (DAC9), which aligns domestic reporting obligations with the OECD’s GloBE (Pillar Two) global minimum tax framework. Multinational enterprise groups with consolidated annual revenue exceeding the Pillar Two threshold (€750 million) must now prepare and file top‑up tax returns in France for qualifying French entities. Complementary DAC9 reporting obligations require the exchange of specified data with other EU member states.

Financial Transaction Tax and Acquisition Taxes

While the French Financial Transaction Tax (FTT) rate and scope remain largely stable, the Finance Act 2026 clarifies the application of registration duties and transfer taxes on share deals, particularly for transactions involving companies with significant French real‑estate holdings. Deal teams should verify current rates with impots.gouv.fr guidance to ensure purchase‑price models reflect the latest applicable levies.

How the Patrimonial‑Holding Tax Affects Holding Companies and LBO Pyramids

The patrimonial‑holding tax in France represents the single biggest structural risk factor for LBO and private‑equity transactions closed in 2026. Industry observers expect this measure to accelerate the trend toward flatter acquisition structures and to force sponsors to rethink the economics of layered holding chains.

Scope and Thresholds

The tax applies to French‑resident companies (SA, SAS, SARL and certain SCIs) whose gross assets exceed a prescribed threshold and where a specified percentage of those assets comprise qualifying passive holdings, including real estate held for investment, portfolio financial instruments, and intercompany receivables that are not directly linked to active trading operations. The asset‑composition test is applied at the entity level, meaning each vehicle in an LBO pyramid must be assessed independently.

Single Holding vs Multi‑Layer Holdings: Worked Examples

Consider a standard LBO structure with a topco (acquisition vehicle), a midco (intermediate financing layer) and an opco (operating company). If the topco’s only material asset is its shares in the midco, and the midco’s only asset is its shares in the opco, both topco and midco risk meeting the passive‑asset threshold. The patrimonial‑holding tax could therefore be levied twice, compounding the fiscal drag on equity returns. By contrast, a single‑holding structure where one acquisition vehicle directly acquires the opco faces only a single potential exposure.

Practical Workarounds: Timing, Ownership Tests and Tax Elections

Deal teams can mitigate patrimonial‑holding tax exposure through several structuring techniques:

• Collapse intermediate layers. Where a midco serves no genuine commercial or regulatory function, merging it into topco or opco before closing eliminates one point of exposure.
• Recharacterise intercompany receivables. Converting passive intercompany loans into equity contributions or profit‑participating instruments may remove receivables from the passive‑asset calculation.
• Timing the reorganisation. Ensure any restructuring is effective before the opening of the first fiscal year subject to the new rules. Backdating or retroactive elections are unlikely to be accepted.
• Active‑management carve‑outs. If the holding company can demonstrate that it provides genuine strategic, management or administrative services to subsidiaries, it may argue that its assets are active rather than passive. This requires robust documentation, service agreements, staff allocation records and management‑fee invoices.

Interest Limitation and Tightened Deduction Rules: Financing Consequences and Lender/Sponsor Workarounds

The tightened interest deduction rules under the finance act France M&A regime directly affect the cost of leveraged acquisitions. For sponsors accustomed to maximising debt in LBO structures, the 2026 changes represent a meaningful shift in term sheet economics and covenant design.

Overview of the New Rules: Thin Capitalisation and Minority Loan Restrictions

France’s existing interest‑limitation framework, built on the ATAD transposition, already caps net interest deductions at 30% of tax EBITDA (with a de minimis safe harbour of €3 million). The Finance Act 2026 adjusts this framework in two critical ways for LBO and M&A financing:

• Lower effective ceiling. For companies whose debt‑to‑equity ratio exceeds the thin‑capitalisation threshold, the deductible amount is further reduced by a supplementary haircut applied to the ATAD‑calculated ceiling. The practical effect is to deny deductions on a larger portion of interest expense than under the prior regime.
• Interest deduction rules on minority loans. Interest paid on loans from minority shareholders (including management co‑investors and vendor loan‑back arrangements) is now subject to a specific cap linked to a reference rate set annually by administrative instruction. Interest in excess of this reference rate is non‑deductible. This targets the common practice of pricing vendor and management loans above market to extract additional tax‑efficient returns.

Vendor Loans, Management Loans and Mezzanine: Renegotiation Strategies

These LBO tax rules in France require deal teams to reassess the entire financing stack:

• Vendor loans. Sellers providing vendor financing should expect buyers to push for lower coupon rates to ensure full deductibility. Sellers may resist by seeking equity sweeteners, warrants, ratchets or preferred‑return instruments, to compensate for the reduced interest yield.
• Management loans. Management packages that include loan‑backs at above‑market interest rates will need restructuring. Alternatives include higher equity participation, PIK (payment‑in‑kind) instruments with careful documentation to avoid recharacterisation, or bonus arrangements linked to exit proceeds.
• Mezzanine debt. Third‑party mezzanine providers may need to accept tighter pricing or convert a portion of the coupon into equity‑linked returns (warrants attached to mezzanine tranches). The negotiation dynamic shifts: lenders who previously relied on high cash coupons may need to accept more equity upside in exchange for lower headline interest.

Model Worked Example: EBITDA/Net Interest Expense Re‑Pricing

The following simplified model illustrates how the tightened rules change the after‑tax financing cost of a €200 million LBO:

Early indications suggest that sponsors are already adjusting bid pricing to reflect these LBO working capital mechanics in France, either by lowering enterprise‑value multiples or by restructuring the debt mix to include more equity and less high‑coupon subordinated debt.

DAC9 and Pillar Two: Disclosure, Reporting and Buyer/Seller Obligations in Cross‑Border Deals

Cross‑border transactions with French targets now carry an additional compliance layer that is fundamentally different from traditional French M&A tax considerations. The combined effect of DAC9 M&A disclosure requirements and Pillar Two’s global minimum tax creates new obligations for both buyers and sellers.

DAC9 Disclosures at Signing and Closing

France’s transposition of DAC9 requires qualifying entities to file standardised reports that facilitate the automatic exchange of tax information among EU member states. For M&A transactions, the practical effect is twofold:

• Seller obligation. Sellers must ensure that the target group’s DAC9 reporting is current and complete before closing. Any outstanding filings or data gaps constitute a compliance risk that buyers should flag in due diligence.
• Buyer obligation. Post‑closing, the buyer inherits responsibility for ongoing DAC9 compliance. This includes the obligation to file top‑up tax information returns for the target’s French entities within the prescribed deadlines.

Pillar Two Effective Tax Rate Implications for Consolidated Targets and Topco

The pillar two impact on private equity is significant for groups whose consolidated revenue exceeds the €750 million threshold established under the OECD’s GloBE rules. Key implications include:

• Top‑up tax exposure. If any entity in the target group is subject to an effective tax rate below the 15% global minimum in a given jurisdiction, a top‑up tax may be owed in France (or the parent jurisdiction). Buyers must model this exposure at the LOI stage.
• Impact on exit valuations. Future buyers will apply the same Pillar Two analysis, potentially compressing exit multiples for groups with low‑tax subsidiaries.
• Transitional safe harbours. The OECD has provided transitional safe‑harbour rules that may reduce the reporting burden during the initial implementation period. Deal teams should verify whether the target qualifies for any safe harbours, as this affects both compliance cost and substantive tax exposure.

Due Diligence Checklist: Red Flags for Buyers

During vendor due diligence in France in 2026, buyers should specifically request:

• Copies of all DAC9 filings made by the target group in the past two fiscal years.
• A jurisdiction‑by‑jurisdiction effective‑tax‑rate analysis for Pillar Two purposes.
• Confirmation of whether the target group qualifies for any Pillar Two transitional safe harbours.
• Details of any intercompany arrangements that could trigger top‑up tax liabilities post‑acquisition.
• Disclosure of any pending tax authority enquiries related to DAC reporting or information exchange.

Deal Mechanics: Purchase Price, Indemnities, Tax Reps and Price Adjustments Under the 2026 Regime

The France M&A tax changes introduced by the Finance Act 2026 require fundamental updates to SPA architecture. Deal lawyers who rely on pre‑2026 template language expose their clients to unhedged risks.

Reworking Reps, Warranties, Caps, Escrows and Holdbacks

• Tax representations. Add specific representations confirming that (a) the target group has no exposure to the patrimonial‑holding tax, or (b) if exposure exists, the quantum has been disclosed and priced into the transaction. Include a separate representation covering DAC9 filing compliance.
• Indemnity caps. Consider increasing the tax indemnity cap to reflect the potential magnitude of patrimonial‑holding tax liabilities, which could compound across multiple entities in a holding chain.
• Escrow/holdback. Where the seller cannot provide clean representations, negotiate an escrow amount calibrated to a worst‑case patrimonial‑holding tax assessment for the first two fiscal years post‑closing, plus a Pillar Two top‑up tax reserve.
• Survival periods. Extend the survival period for tax indemnities to cover at least the statute of limitations applicable to the new tax charges. Standard 18‑month windows may be insufficient.

SPA Clause Drafting Snippets

The following sample language illustrates the type of clauses deal teams should incorporate. These are illustrative and must be adapted to each transaction:

Tax Gross‑Up Clause: “If any payment made by the Target Group to the Buyer or any member of the Buyer Group is subject to the patrimonial‑holding tax or any successor levy not in force as at the date of this Agreement, the Seller shall pay to the Buyer an additional amount such that, after deduction or withholding of such tax, the net amount received by the Buyer equals the amount that would have been received had no such deduction or withholding been required.”

Specific Indemnity Carve‑Out: “The limitations on the Seller’s liability set out in Clause [X] shall not apply to any Claim arising from or in connection with (a) any liability of any Target Group Company under the patrimonial‑holding tax provisions of the Loi de finances pour 2026, or (b) any penalty, interest or surcharge arising from non‑compliance with DAC9 reporting obligations attributable to pre‑Closing periods.”

For additional guidance on structuring SPA provisions, see our guide on deadlock provisions in shareholders’ agreements and minority shareholders protection.

Negotiation Playbook for Sponsors and Sellers: Term Sheet Redlines and Priorities

The negotiation dynamic between sponsors and sellers has shifted under the Finance Act 2026. Below is a practical playbook organised by party.

Sponsor Priority Redlines

• Financing mix. Push for a higher equity component and lower high‑coupon subordinated debt. Model the post‑tax cost of each tranche under the new interest‑limitation rules before finalising the financing structure.
• Tax gross‑up trigger. Insist on a comprehensive tax gross‑up that covers the patrimonial‑holding tax, Pillar Two top‑ups and any DAC9 penalties attributable to pre‑closing periods.
• Price adjustment mechanisms. Include a specific price‑adjustment clause tied to final determination of the target’s patrimonial‑holding tax status. If an assessment is received post‑closing, the purchase price adjusts downward by the discounted present value of the liability.
• Covenant flexibility. Negotiate LBO covenants (debt‑service coverage, leverage ratios) that account for the reduced deductibility of interest, otherwise, the target may technically breach covenants despite stable operating performance.
• Return re‑modelling rights. Reserve the right to walk away or re‑price if, between signing and closing, administrative guidance materially worsens the scope of any 2026 measure.

Seller Priority Redlines

• Cap on new‑law indemnities. Resist open‑ended indemnification for a tax that did not exist at the time commercial terms were agreed. Propose a fixed‑sum holdback released on an agreed schedule.
• Knowledge qualifier. Insist that tax representations are qualified by “to the Seller’s knowledge, having made reasonable enquiry”, particularly for DAC9 compliance, where full visibility may be limited.
• Vendor loan pricing. If forced to accept a lower coupon due to interest deduction rules on minority loans, negotiate equity kickers, convertible instruments, or earn‑out components to preserve overall deal value.
• Clean‑exit timeline. Push for shorter escrow release periods and clearly defined claims procedures to avoid indefinite capital lock‑up.

Practical Checklist and Timeline for Deal Teams

The following checklist, organised by deal phase, synthesises the key actions arising from the finance act France M&A changes:

Pre‑LOI Phase

1. Run a preliminary patrimonial‑holding tax exposure scan on the target’s holding structure.
2. Request a jurisdiction‑by‑jurisdiction effective‑tax‑rate breakdown for Pillar Two modelling.
3. Confirm whether the target has filed all required DAC9 reports.
4. Model LBO returns under both pre‑ and post‑2026 interest‑deduction rules.

Signing Phase

5. Finalise SPA tax representations, indemnities and escrow provisions using 2026‑specific language.
6. Agree on interest‑rate benchmarks for vendor/management loans (reference rate per administrative instruction).
7. Include a specific condition precedent for completion of any pre‑closing holding‑structure reorganisation.
8. Set the closing date to align with fiscal year‑end to minimise transitional exposure.

Closing Phase

9. Verify that all pre‑closing reorganisations (layer collapses, intercompany loan conversions) are legally effective.
10. Confirm that the escrow account is funded in accordance with the agreed patrimonial‑holding tax and Pillar Two reserves.
11. Ensure that DAC9 filings for the pre‑closing period have been submitted by the seller.

Post‑Closing Phase

12. File post‑acquisition DAC9 and Pillar Two returns within the prescribed deadlines.
13. Monitor administrative guidance from impots.gouv.fr for clarifications affecting the target’s tax position.
14. Track escrow release milestones and manage claims procedures.
15. Update LP reporting and fund models to reflect actual (not estimated) tax outcomes for the first fiscal year under the 2026 rules.

For broader guidance on structuring investment fund vehicles and deal economics, consult our dedicated resources.

Conclusion: Navigating the Finance Act France M&A Landscape in 2026

The Loi de finances pour 2026 represents the most significant set of fiscal changes to affect French M&A, LBOs and private‑equity transactions in several years. The patrimonial‑holding tax, interest‑deduction tightening and DAC9/Pillar Two reporting obligations are not abstract policy shifts, they are already changing how deals are priced, structured and documented. Buyers, sellers and sponsors who fail to integrate these changes into their deal processes risk material value leakage, compliance exposure and protracted post‑closing disputes.

The practical steps outlined in this playbook, from holding‑structure reorganisation and LBO re‑modelling to SPA redrafting and DAC9 due‑diligence protocols, provide a framework for immediate action. However, the interplay between these measures is complex and highly fact‑specific. Professional advice from experienced French corporate and M&A counsel is essential to ensure that each transaction is optimally structured under the new regime.

Last reviewed: 15 May 2026. This article will be updated if further administrative guidance or ministerial instructions are published that materially affect the provisions discussed.

Sources

1. Legifrance, Loi de finances pour 2026 (official text)
2. Impots.gouv.fr, Official tax guidance on corporate tax provisions and FTT
3. OECD, Pillar Two / GloBE Rules (official guidance)
4. European Commission, DAC9 legislative texts and guidance
5. KPMG, Tax measures in Finance Act 2026 adopted in France
6. PwC Tax Summaries, France
7. Baker McKenzie, Global Private M&A Guide (France)
8. Valoris Avocats, Tax aspects of M&A in France
9. International Bar Association, France adapts its merger tax regime