Tax consolidation and LBO: conditions, benefits, Charasse rule

Quick answer. Tax consolidation (Tax Code art. 223 A) lets a parent company holding at least 95% of a subsidiary's capital and voting rights be the sole payer of corporate tax on a consolidated result. In an LBO, it is the mechanism that makes the interest on the holding's acquisition debt absorbed by the target's profit, as long as ownership stays above 95% and the financial years are aligned. The Charasse rule (art. 223 B) limits this benefit in a buy-from-yourself case.

The buyout of a company through debt, or LBO, does not rest only on financial leverage: it rests on a tax mechanism, tax consolidation. It is what lets the acquisition holding have the cost of its debt absorbed by the profits of the bought company. Three parameters drive how solid the structure is: the 95% holding threshold, the intragroup dividend regime, and the anti-abuse devices, foremost among them the Charasse rule. Understanding them before signing avoids discovering, two financial years later, that part of the leverage was neutralised.

Tax consolidation is a group regime that combines the tax results of several companies (Tax Code art. 223 A).

The parent company becomes the sole payer of corporate tax for the whole group. The results of the consolidated subsidiaries are added to form a consolidated result, on which corporate tax is assessed. The profits of some are offset by the losses of others: this is the central benefit of the regime, and it is exactly what an LBO seeks, since the holding is structurally loss-making at the start of the operation.

The scope is not free. All the group companies must be subject to corporate tax in France, close on the same date over twelve-month financial years, and the regime results from a formal election, renewable by tacit agreement over five-year periods. A target closing on 30 June while the holding closes on 31 December cannot be consolidated until the dates are aligned: a timing point we handle from the very framing of the operation.

Consolidation does not start on the day of the buyout: it takes effect at the opening of a financial year, on an election filed on time.

The parent company files the election with the tax office no later than the deadline for filing the tax return of the financial year preceding the one in which it wants to open the regime. In practice, to consolidate a target from the financial year opening on 1 January, the election must be made before the filing date of the return for the year closed the previous year, together with the list of consolidated subsidiaries and their agreement. An operation signed mid-year therefore does not open consolidation immediately: the first consolidated financial year is, in most cases, the first full year that follows the acquisition and the alignment of closing dates.

This lag has a cash impact that is often underestimated. Between signing the LBO and the first consolidated year, the interest on the acquisition debt borne by the holding is not offset against any profit: it builds up as a loss in a holding with no income, and the group pays corporate tax at the target level without reducing the charge. On a heavy acquisition debt, this transition year weighs directly on repayment capacity. Anticipating the effective date therefore means anticipating a cash need, not just a formality.

The election then renews tacitly over five-year periods, with no step required each year. The scope, however, is updated annually: each entry or exit of a subsidiary must be notified, and the agreement of each consolidated company renewed. A subsidiary acquired during the period only enters the group at the opening of the financial year following its acquisition at 95%, never mid-year. This is a rule we build into the timetable of any series of bolt-on acquisitions.

The holding threshold is the strictest entry condition of the regime, and the most misunderstood.

The parent company must hold, directly or indirectly, at least 95% of the capital and voting rights of each consolidated subsidiary. The threshold applies to both dimensions at once: a holding owning 96% of capital but only 90% of voting rights, because of preference shares or a shareholders' agreement, does not meet the condition. Conversely, some shares are neutralised in the calculation (treasury shares, shares awarded to employees within certain limits), which can cross a threshold thought to have been missed.

Indirect holding is calculated by multiplying the rates along the chain. A holding owning 95% of a company that itself owns 95% of a target indirectly owns only 90.25% of that target: the sub-subsidiary cannot then be consolidated. This mechanics shapes the whole LBO structure: to benefit from the leverage, the acquisition holding must secure at least 95% of the target, which often means buying out the minority holders or bringing them into the holding's capital rather than the target's. In multi-tier structures, each link must therefore be kept above 95% for the chain to stay consolidable all the way down.

Tax consolidation is the heart of an LBO's leverage, beyond financial leverage alone.

In an LBO, an acquisition holding borrows to acquire the target, then consolidates it for tax. The interest on the acquisition debt, borne by a holding with no income of its own, is then offset against the target's profit within the consolidated result. Outside consolidation, this interest would stay trapped in a loss-making holding, unable to reduce the group's tax. With consolidation, the debt is repaid with lightly taxed profits. This mechanism extends the logic of the acquisition holding, which we detail in our case study on the creation of a holding after a company buyout.

The dividends paid up from the target to the holding also benefit from the parent-subsidiary regime (Tax Code art. 145 and 216): only a 5% share of costs and charges remains taxable, reduced to 1% for distributions within a consolidated group. The group's residual profit is taxed at the reduced corporate tax rate of 15% up to 42,500 euros of profit, then at the standard rate of 25% (Tax Code art. 219). This double benefit, deductible debt and near-exempt dividends, explains why consolidation is rarely absent from a serious LBO. When a contribution of shares predates the operation, it frequently combines with a deferral on the contribution of shares that must be secured in parallel.

The LBO benefit has a major anti-abuse limit: the Charasse rule (Tax Code art. 223 B).

The device provides that, when a company is bought from persons who control the acquiring group, a share of the group's financial charges is reintegrated into the consolidated result. It targets the buy-from-yourself: it prevents an owner from selling their company to their own holding, financing the purchase with a loan, and deducting that loan's interest from the profit of the company they still control. For acquisitions made from 2007 onwards, the reintegration applies for the year of the buyout and the eight following financial years, which weighs on the whole life of the LBO.

The trigger is control, not the family link as such: it is the fact that the seller (or their group) controls the acquiring holding after the operation that activates the mechanism. A purchase from a genuinely independent third party is not concerned. Family transfers or management buy-outs where the owner stays in charge are, by contrast, on the front line, and must be costed by factoring in this charge from the forecast stage.

To this is added the general cap on the deduction of net financial charges, limited to 30% of tax EBITDA above a threshold of three million euros (regime from the ATAD directive). On significant LBOs, this cap, and not the Charasse rule, is often the first constraint that limits interest deductibility. The two devices stack: they are not alternatives. In practice, the calculation runs in successive layers on the same year: the 30% ATAD cap is applied first to all net financial charges, then the Charasse reintegration is applied to the share targeted by the buy-from-yourself, without one layer cancelling the other.

Our view: a structure secured at the outset, not after the fact#

Tax consolidation is the backbone of the LBO, but it is anything but automatic. In the files we support, lost leverage almost never comes from the principle, it comes from execution: a 95% threshold met on capital but not on voting rights, misaligned closing dates that push consolidation back a year, or a Charasse rule discovered after signing in a poorly qualified family buyout.

Our approach is to handle these points before the deed, not in the first year's tax return. In concrete terms: check eligibility and the indirect-holding calculation, align the financial years, qualify the seller against control to anticipate Charasse, and test interest deductibility against the 30% cap. This work is part of a holding taxation engagement that covers both the framing and the annual monitoring of the consolidated result. Well built, the LBO with consolidation remains one of the most powerful tools of a company buyout. Poorly framed, it saddles the buyer with a debt whose cost the State no longer shares.

An executive wanted to buy out the industrial SME that employed him, valued at around 2 million euros, contributing 500,000 euros of equity and financing the balance with a loan housed in an acquisition holding. The target generated a steady operating profit and had no bank debt.

The analysis confirmed that by acquiring 100% of the target, the holding could consolidate it from the first common financial year and offset the debt interest against the target's profits, which appreciably sped up repayment. The seller being a third-party founder who fully withdrew, the Charasse rule did not apply. Two adjustments remained: align the target's closing date with the holding's to open consolidation without a lag, and check that the annual interest stayed under the 30% tax-EBITDA cap, which it did given the size of the operation. The structure held on the tax side, where an improvised scheme could have lost a year of leverage, or even reclassified part of the interest as non-deductible charges.

In practice: securing an LBO's leverage#

• Map the target's ownership before signing: 95% of capital and voting rights, including indirect holding calculated by multiplying the rates.
• Align the closing dates of the holding and the target: without matching twelve-month financial years, no consolidation in the first year.
• Anticipate the effective date of the election and the transition year: until consolidation is open, the debt interest is offset against no profit and weighs on cash.
• Qualify the seller against post-deal control to know whether the Charasse rule applies, and cost the reintegration over the buyout year and the eight following financial years if it does.
• Test annual interest against the cap of 30% of tax EBITDA above 3 million euros before locking in the debt level.
• File the consolidation election on time and document the consolidated-result calculation from the first year.
• Connect the operation to upstream sale choices, since the seller's exit route often drives the buyer's tax position: see our article on choosing the right transfer route.

• 95% threshold on both dimensions: capital and voting rights. Preference shares and agreements can split the two and defeat consolidation.
• Indirect holding: calculated by multiplying the rates along the chain. Two links at 95% give 90.25%, below the threshold.
• Closing dates and effective date: twelve-month financial years closing on the same date, and an election filed on time. A mismatch pushes consolidation, and therefore the leverage, back a whole year.
• Charasse rule: triggered by the seller's control over the holding after the operation, not just by a family link. A wrong qualification triggers reintegration for the buyout year and the eight following financial years.
• 30% cap: it stacks with Charasse and primarily concerns large LBOs. Excess debt can make part of the interest non-deductible.
• Leaving the regime: losing the 95% threshold along the way (an investor entering, share awards, a partial sale) can take the subsidiary out of the group and trigger tax consequences to anticipate before the event, not after.