Share contribution to a holding company in France: tax deferral and structuring in 2026

Up to date as of 14 May 2026. A share contribution to a holding company is one of the most frequently encountered restructuring transactions in the files of SME founders and startup managers based in Paris. The principle is straightforward: an individual shareholder transfers ownership of shares in an operating company to a holding company, in exchange for newly issued shares of that holding. In practice, the transaction raises precise tax questions — automatic deferral, roll-over relief with commitment, valuation, parent-subsidiary regime, abuse of law — that Cabinet Hayot Expertise regularly addresses in Paris for group structuring, pre-sale preparation, and LBO transactions.

This article covers the general mechanism of a share contribution to a holding company. The roll-over relief regime specific to article 150-0 B ter (contribution-disposal with holding control) is analysed in detail in the dedicated article: CGI art. 150-0 B ter: roll-over relief mechanism and obligations.

A share contribution is a transaction by which a shareholder — individual or legal entity — transfers ownership of shares or partnership interests in a company to a holding company, which issues new shares in return. It is a pure share exchange: no cash is received by the contributing shareholder; instead, the shareholder acquires a stake in the holding company.

Under French civil law, the transaction is governed by the Code de commerce provisions applicable to contributions in kind. Under tax law, it constitutes in principle a taxable capital gains event (CGI art. 150-0 A), unless a neutralisation mechanism under CGI art. 150-0 B or 150-0 B ter applies.

Cash element (soulte): condition for deferral#

The share exchange may include a cash payment (soulte) paid by the holding to the contributor. For the tax deferral to apply, the soulte must not exceed 10 % of the nominal value of the shares received in exchange (CGI art. 150-0 B). If it does, the entire capital gain becomes taxable in the year of contribution. In practice, contributions with no soulte, or a nominal one, mechanically satisfy this condition.

Scope#

The tax deferral provided under CGI art. 150-0 B applies automatically — with no election or formal commitment required — when the shareholder contributes shares to a company subject to corporate income tax (IS), whether incorporated in France, in another EU member state, or in the European Economic Area (EEA) having concluded with France an administrative assistance convention and a tax recovery assistance clause.

The fundamental condition is that the contributing shareholder does not control the holding company after the transaction. As soon as the shareholder holds control as defined in CGI art. 150-0 B ter (majority of voting rights or dividend rights, alone or jointly), the roll-over relief regime — more restrictive — applies instead.

How the deferral works#

Under the deferral, the capital gain on contribution is calculated at the date of the exchange but its taxation is neutralised: it is neither currently taxable nor placed on a special return. The gain enters a de facto deferral, meaning the taxpayer retains the original acquisition cost of the contributed shares as the tax base for any future capital gain calculation upon disposal of the holding shares.

The deferral ends — and the capital gain becomes taxable — when the shares received in exchange are sold, redeemed, repaid, or cancelled.

Comparison: automatic deferral (150-0 B) vs roll-over relief (150-0 B ter)#

In the files handled by Cabinet Hayot Expertise in Paris, share contributions serve four types of objectives:

Group structuring before a fundraising round. A startup whose founders wish to raise venture capital may contribute shares in the operating company to a holding company to organise the group structure (animating holding, operating subsidiary) and prepare a funding round with investors entering at the operating level. The contribution fixes the market value of the shares at the transaction date.

LBO preparation and build-up strategy. In a leveraged buyout structure, a holding company borrows to acquire the target. If the seller-founder wishes to remain a co-investor through a personal holding company, contributing existing shares to that holding before the transaction organises the cash remittance (dividends, parent-subsidiary regime) from the acquired entity upward.

Family succession and OBO transactions. An Owner Buy-Out (OBO) is a transaction in which the founder sells a portion of shares to a holding company they create, to extract liquidity while retaining control. The remaining shares may be contributed under art. 150-0 B or art. 150-0 B ter depending on the level of control. The holding can then progressively transfer the economic interest to heirs — see the article on the animating holding company.

Cash pooling within a group. Once shares are contributed, the holding holds a stake in the subsidiary and can benefit from the parent-subsidiary regime on dividends paid upward. Under certain conditions, it may also consolidate group tax results through tax group integration.

Our reading. A share contribution to a holding company is relevant when the shareholder has a genuine economic reinvestment project: a new acquisition, sectoral diversification, long-term wealth structuring. A contribution whose sole purpose is to defer tax without any reinvestment project has long been exposed to an abuse-of-law challenge — and is under greater scrutiny given the reinforced control environment for holding structure transactions. Cabinet Hayot Expertise systematically audits the economic rationale before any restructuring.

Contribution value and tax cost basis#

The holding records the received shares at their contribution value, as stated in the contribution agreement and validated if applicable by a contribution auditor (commissaire aux apports). This value constitutes both:

• the accounting cost of the shares on the holding's balance sheet (financial fixed assets);
• the tax cost basis used to compute the capital gain when the holding subsequently disposes of the shares.

If the holding later sells the shares at a price above the contribution value, a corporate income tax gain arises in the holding's accounts, taxed at the standard IS rate applicable at that time (15% or 25% depending on company size — 2025 rates, to be confirmed for 2026).

Contribution auditor: when is one required?#

A contribution in kind to a SAS or SARL requires in principle the appointment of a commissaire aux apports (Code de commerce art. L227-1 and L223-9). A waiver is possible — unanimous shareholder consent, individual contribution value under €30,000, total under half of share capital — but this waiver is rarely available in a share contribution transaction of material value. An unjustifiably low or inflated contribution value exposes the transaction to abuse-of-law risk or legal challenge.

Parent-subsidiary regime (CGI art. 145 and 216)#

When the holding owns at least 5 % of the capital of the subsidiary and has held the shares for at least two years, dividends received benefit from the parent-subsidiary regime: 95% exemption from corporate income tax, with only a 5% expenses add-back remaining taxable. This regime makes upward cash remittance highly efficient after a share contribution.

Tax group integration (CGI art. 223 A)#

If the holding owns at least 95 % of the capital of the subsidiary, the group may elect for tax group integration. The holding becomes the head company and can offset the profits of one subsidiary against the losses of another. A share contribution that brings the ownership above the 95% threshold may therefore open the option for tax group integration — a decision to anticipate before the end of the financial year concerned.

Under the automatic deferral (CGI art. 150-0 B), taxation is triggered by the disposal of the shares received in exchange (holding shares). There is no formal commitment to make, but vigilance is required on several points:

• Disposal of holding shares by the contributor: ends the deferral on the corresponding gain.
• Dissolution of the holding company: a triggering event if it results in asset distribution.
• Merger, demerger, or partial business transfer involving the holding: verify whether deferral continuity can be maintained.

For the roll-over relief under CGI art. 150-0 B ter (holding control), the triggering events are broader and include disposal of the contributed shares by the holding, unless a qualifying reinvestment is made within the applicable timeframe. This regime is analysed separately in the article CGI art. 150-0 B ter roll-over relief.

Calculating the contribution capital gain#

The gross capital gain on contribution equals the difference between the contribution value of the shares (market value at the date of exchange) and their tax cost basis (acquisition price or initial entry value). For shares acquired before 2018, length-of-ownership allowances (standard or enhanced for founders selling their SME) may apply — their availability under the applicable transitional regime must be checked against the legal text in force at the transaction date.

Latent gains held in the holding#

After the contribution, if the operating subsidiary has accumulated undistributed profits or if its value has increased, a latent capital gain builds in the holding on the shares it holds. This latent gain will be taxable under IS when the holding disposes of the shares (at the standard IS rate, unless the long-term participation disposal regime under CGI art. 219-I-a quinquies applies, providing a 0% effective rate net with a 12% add-back — check the holding period conditions carefully).

CGI art. L64 LPF allows the tax authority to disregard the effects of transactions that are fictitious or whose sole purpose is tax avoidance, by looking through to the economic substance of the operation.

The under-estimated risk. In the files encountered, abuse-of-law risk is under-estimated when:

• the contribution is followed by a rapid disposal of the contributed shares by the holding, without documented reinvestment;
• the holding has no real substance (no real head office, no staff, no management activity);
• the contribution value is manifestly inconsistent with market value, with no commissaire aux apports report.

2026 watch points. The French tax authority has intensified scrutiny of contribution-disposal transactions as part of its action plan against abusive holding structure schemes. Traceability of the economic rationale, valuation documentation, and coherence of the post-contribution project are the three security axes that Cabinet Hayot Expertise puts in place as a matter of course.

Situation. Marc holds 80% of a SAS IT services company valued at €2.4 million (original acquisition cost: €15,000). He wishes to contribute his shares to a holding company before opening the capital to an investment fund.

Structure chosen. Marc contributes his 80% stake (80% × €2.4M = €1.92M) to a newly created SAS holding of which he is the sole shareholder. No soulte is provided. The holding records the shares at contribution value €1.92M and issues equivalent shares to Marc.

Tax analysis. Marc controls the beneficiary holding (100% of voting rights). The applicable regime is therefore the roll-over relief under CGI art. 150-0 B ter, not the automatic deferral. The gross capital gain on contribution is €1,905,000 (€1.92M − €15,000). The theoretical tax at PFU 30% — approximately €571,500 — is placed in roll-over. Provided the holding does not dispose of the contributed shares within three years following the contribution, no triggering event arises.

After the funding round. The fund enters the capital of the operating SAS directly, without touching the holding. Marc's holding retains its participation, benefits from the parent-subsidiary regime on dividends received, and remains outside the fund's control perimeter.

What Cabinet Hayot Expertise monitors in this file. The €2.4M valuation must be supported by a recognised methodology (DCF, sector multiples). A commissaire aux apports must be appointed to validate the contribution value in the SAS holding. The post-contribution special return required under CGI art. 150-0 B ter must be filed within the applicable deadline. The planned fundraising constitutes the economic rationale documenting the substance of the transaction.

Situation. Sophie holds stakes in three operating companies acquired at different dates and prices. She wishes to consolidate them into a single holding company.

Watch points. Each contribution is an independent transaction: the capital gain is calculated separately, the conditions for deferral or roll-over are verified share class by share class, and the valuation is specific to each company. If Sophie controls the beneficiary holding after all contributions, CGI art. 150-0 B ter applies to each contribution, and roll-over obligations accumulate. An error in the special return for one contribution can trigger recovery of that contribution's gain without affecting the others.

Parent-subsidiary regime interaction. Once all three stakes are held by the holding, the 5% minimum ownership condition is checked on a stake-by-stake basis. If one of the subsidiaries is a SCI (property company) or a company carrying out a civil law activity, the parent-subsidiary regime does not apply automatically — verification is required.

Two trade-offs structure the advisory work on a share contribution at Cabinet Hayot Expertise in Paris:

Trade-off 1: automatic deferral or roll-over relief. The question is not one of "choosing" but of diagnosing the control situation before the transaction. If the contributor controls the holding, roll-over applies mechanically with its constraints. If the structuring can be organised so that the contributor does not control the holding at the time of the contribution — for example by bringing in a co-investor or adjusting the shareholders' agreement — automatic deferral applies, with no reinvestment obligation. This question must be settled before the articles of association are drafted.

Trade-off 2: contribution valuation. An undervalued contribution benefits the contributor (lower gain if taxed) but weakens the defence against abuse-of-law challenge and may prejudice other shareholders if the holding has multiple shareholders. A valuation consistent with market methods, documented and validated by a commissaire aux apports, is the most defensible position.

The under-estimated risk. Share contribution transactions are regulated but not free from challenge. The absence of a precise contribution agreement, failure to file the post-contribution special return, or misunderstanding of the applicable regime are the three most frequent sources of tax exposure in group structuring files for Parisian SMEs.

• Diagnose the control situation (automatic deferral art. 150-0 B or roll-over art. 150-0 B ter)
• Calculate the gross capital gain on contribution and the corresponding deferred tax amount
• Verify the soulte ≤ 10% condition if applicable
• Value the contributed shares using a recognised methodology (DCF, sector multiples)
• Appoint a commissaire aux apports if required by the applicable corporate law form
• Draft the contribution agreement with the partner lawyer
• Verify conditions for the parent-subsidiary regime post-contribution
• Verify whether the 95% threshold for tax group integration is reached
• File post-contribution special returns within the applicable deadlines
• Document the economic rationale of the transaction (abuse-of-law protection)

Sources: Légifrance — CGI art. 150-0 A, 150-0 B, 150-0 B ter, 145, 216, 223 A; LPF art. L64; BOFiP BOI-RPPM-PVBMI-30.