Financial Structuring: LBO, MBO, MBI, OBO and Acquisition Structures

LBO, MBO, MBI, BIMBO, OBO — discover the mechanics, advantages, limitations and a complete comparative overview of each financial structuring form for Franco-Swiss SMEs.

Introduction: Financial Structuring — The Architecture of Every Successful Transaction

Selling, transferring, acquiring or refinancing a business are decisions that involve years of work, a patrimony that is often highly concentrated, and human relationships built over time. They deserve a financial architecture commensurate with what is at stake. Financial structuring is precisely that architecture: a set of legal, tax and financial choices that conditions — far more than most people imagine — the success or failure of any acquisition or business transfer.

Financial structuring refers to all decisions relating to the composition of financing for an acquisition or sale: the choice between senior debt, mezzanine debt and equity, the legal form of the acquisition holding company, the design of the management package, tax optimisation, and the negotiation of banking covenants. Each component interacts with the others — a miscalibration of one can undermine the entire structure.

“A deal’s structure is like a building’s frame: invisible when everything is going well, but absolutely decisive the moment the wind picks up.”

This article addresses these questions in a logical sequence: after recalling the origins and fundamentals of financial structuring, we detail the available financing instruments and their repayment waterfall, before providing an in-depth analysis of the six main transaction structures — LBO, MBO, MBI, BIMBO, OBO, secondary LBO — examining for each its mechanics, advantages, limitations and concrete examples in the Franco-Swiss context. We conclude with current market conditions, the most common structuring mistakes and a practical FAQ for business owners and acquirers.

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Origins and Evolution of Financial Structuring

Financial structuring in acquisition transactions has its roots in the United States in the 1980s. In Europe, the practice developed during the 1990s and 2000s, driven by the rise of continental private equity. In Switzerland, the Code of Obligations framework and cantonal tax specificities gave rise to adapted structures — particularly the OBO, favoured by owner-managers seeking to partially monetise their wealth while retaining operational control.

The 2023 reform of the Swiss Code of Obligations and France’s loi Pacte modernised the applicable legal frameworks, enhancing the flexibility of acquisition structures and opening new possibilities in terms of share classes, conditional capital and simplified governance. Today, financial structuring has become a discipline in its own right, mobilising expertise in corporate law, taxation, business valuation, capital markets and governance. It directly conditions investor returns, tax burdens and the long-term resilience of acquired businesses.

Definition and Core Principles

Financial structuring rests on three fundamental, interdependent mechanisms.

The first is the acquisition holding company (NewCo) — a legal entity created specifically to carry the acquisition debt and hold the target’s shares. The NewCo borrows, acquires the target, and repays the debt using dividends upstreamed by the target: this is the foundational mechanism of any LBO.

The second is financial leverage. When the target’s economic return on assets (ROCE) exceeds the after-tax cost of debt, each additional franc of debt mechanically improves the return on invested equity. A ROCE of 12% financed 60% by debt at 4.5% generates an ROE of approximately 23% — nearly double the economic return.

The third is the financial waterfall. The target’s operating cash flows first service the senior debt, then the mezzanine debt, then the vendor loan, before remunerating shareholders. The DSCR (Debt Service Coverage Ratio = EBITDA / Annual debt service) is the central barometer of any LBO structure: lenders typically require a minimum DSCR of 1.20x to 1.30x over the repayment horizon.

Prior valuation of the target — using DCF and comparable multiples methodologies — is the inseparable starting point of any structuring exercise. Without a robust valuation, it is impossible to correctly calibrate leverage, the WACC and expected investor returns.

Franco-Swiss Application Context

In France, the tax consolidation regime (CGI art. 223 A) allows the acquiring holding company to deduct acquisition interest charges from the target’s operating profit, provided the holding owns more than 95% of the capital. The parent-subsidiary regime exempts 95% of dividends upstreamed by the operating subsidiary from corporate income tax. Added to these is the partial deductibility of net financial charges within 30% of fiscal EBITDA (interest limitation rule, CGI art. 212 bis).

In Switzerland, the thin capitalisation rules of the AFC cap the amount of deductible debt according to asset type — debt/asset ratio capped at 70% for equity investments, 85% for commercial real estate. The participation relief virtually exempts dividends received from subsidiaries held at over 10%. Capital contribution reserves (RAP) allow distributions free of the 35% withholding tax. A tax ruling is systematically sought before any complex transaction — it is obtained in 3 to 6 weeks from the competent cantonal tax authority and binds the administration for the entire duration of the transaction.

Structuring Methodology

Any financial structuring follows a rigorous analytical sequence of six steps: (1) Repayment capacity analysis — normalised EBITDA after financial due diligence adjustments; (2) Legal form selection — Swiss SA, French SAS or Sàrl; (3) Debt calibration — senior debt, mezzanine, vendor loan; (4) Management package structuring — sweet equity, ratchet, BSPCE; (5) Tax optimisation — tax consolidation in France, tax ruling in Switzerland; (6) Banking covenant negotiation — headroom of 20 to 30% relative to covenant thresholds.

Financing Instruments and the Waterfall

Senior debt (Term Loan A/B, revolving credit facility) represents 40 to 55% of the acquisition price. Term Loan A amortises quarterly over 5 to 6 years. Term Loan B repays in full at maturity (bullet) over 6 to 7 years. Its 2025 cost: SARON + 2.0–3.0% for Swiss transactions, Euribor + 2.5–3.5% for French transactions.

Mezzanine debt represents 10 to 20% of the price and sits between senior debt and equity in priority. It is remunerated at 8–12%, part of which may be capitalised as PIK (Payment in Kind). The unitranche — a hybrid instrument combining senior and mezzanine in a single tranche from a private debt fund — simplifies documentation and governance.

The vendor loan (seller credit, 0–15% of price) is granted directly by the seller to the acquirer. Its subordination to senior debt is formalised by a contractual subordination agreement. The vendor loan rate (typically 4–6%) must be a market rate to be tax-deductible.

Equity (25 to 40% of price) is contributed by the PE fund and co-invested by management. Its implicit cost is the investor’s target IRR — typically 20 to 25% over 4–7 years for a mid-market fund. The management package mechanism allows management to earn an economically disproportionate return if targets are exceeded.

The 6 Transaction Structures: Detailed Analysis

LBO — Leveraged Buy-Out

The LBO is the archetype of leveraged financial structuring. A private equity fund acquires a target company through a NewCo, combining equity (25–40% of price) and bank debt (60–75%). Value is created through three simultaneous levers: organic EBITDA growth, margin improvement, and progressive deleveraging. Example: Swiss industrial SME, CHF 20.0M EV (EBITDA CHF 3.0M). Structure: CHF 8.0M equity (40%) + CHF 10.0M senior debt (SARON + 2.5%) + CHF 2.0M mezzanine (9%). Annual debt service: CHF 2.40M. DSCR: 1.25x. Target IRR: 22% over 5 years.

MBO — Management Buy-Out

The MBO involves the incumbent management team acquiring the company in partnership with a PE fund. Management invests a significant portion of their personal savings in exchange for a management package comprising sweet equity and conditional ratchet mechanisms. Price negotiation justifies commissioning an independent financial due diligence on behalf of the co-investing fund. Example: Franco-Swiss services company, CHF 30.0M EV (EBITDA CHF 4.2M). Structure: CHF 12.0M equity + CHF 16.0M senior debt + CHF 2.0M vendor loan. DSCR: 1.24x. Ratchet triggered if PE fund IRR > 22%: management share increases from 12% to 18%.

MBI — Management Buy-In

The MBI involves an external manager acquiring control of the business. The defining risk factor is the incoming acquirer’s learning curve of 6 to 18 months. A contractual handover period with the seller is therefore a near-systematic condition of a successful MBI. Example: Swiss transport SME, CHF 12.0M EV (EBITDA CHF 2.0M). He invests CHF 800k personally for 20% of capital. Senior debt CHF 6.0M + vendor loan CHF 2.0M (5%). DSCR: 1.31x. Seller handover: 12 months contractualised in the SPA.

BIMBO — Buy-In Management Buy-Out

The BIMBO combines the strengths of an MBO and an MBI by associating part of the incumbent management with an incoming external acquirer. Negotiating the allocation of sweet equity between internal and external management is the critical point. Example: Franco-Swiss engineering consultancy, CHF 18.0M EV (EBITDA CHF 3.1M). Each manager invests CHF 500k for 5% of capital. Senior debt CHF 10.0M + seller vendor loan CHF 2.0M. DSCR: 1.45x. Leverage: 3.9x EBITDA. Locked-box pricing. 18-month seller handover.

OBO — Owner Buy-Out

The OBO allows the owner-manager to sell part of their capital to a holding company they themselves control. They thereby immediately monetise part of their wealth while retaining operational control. The tax complexity of the OBO is significant. In France, the tax administration may invoke abuse of law (CGI art. L64). In Switzerland, the AFC’s thin capitalisation rules impose a strict leverage cap. In both cases, a prior tax ruling is indispensable. Example: Zurich-based owner-manager aged 55, services company CHF 25.0M (EBITDA CHF 3.5M). Swiss holding acquires 60% for CHF 15.0M: CHF 9.0M senior debt + CHF 6.0M family office. AFC ruling obtained: capital gain of CHF 13.5M exempt. DSCR: 1.13x. Exit envisaged in 5–7 years.

Secondary LBO

A secondary LBO (SBO) occurs when a private equity fund sells its stake in a portfolio company to another PE fund. It accounts for 40 to 50% of European PE exits today. A secondary LBO presents a different value creation dynamic: the acquiring fund must identify a specific value thesis — external growth via add-on acquisitions (build-up), internationalisation, digitalisation — that justifies applying new leverage to an already optimised business.

Market Conditions 2025–2026

The LBO financing environment has undergone significant transformation since 2022. The rise in policy rates increased the cost of debt and mechanically compressed the entry multiples sustainable at an unchanged target IRR. In practice, acquisition multiples have retreated from 7.5–9x EBITDA in 2021 to 6.5–8x EBITDA in 2024 in the Franco-Swiss mid-market segment. Banks simultaneously tightened leverage conditions (caps reduced from 5x to 4–4.5x EBITDA). Two lasting structural trends have emerged: the growing prominence of the vendor loan and the rise of private debt and unitranche.

Advantages and Limitations of Financial Structuring

Key advantages: equity return optimisation via leverage, tax efficiency through interest deductibility and tax consolidation, management-investor interest alignment, operational discipline imposed by debt service, accelerated governance professionalisation.

Limitations and risks: structural fragility in the event of an operational or market shock, significant legal and tax complexity generating substantial structuring costs (4–7% of enterprise value), risk of shareholder-lender conflicts, concentration of personal wealth risk for co-investing management.

Common Structuring Mistakes

Hectelion’s experience in Franco-Swiss financial structuring advisory reveals five recurring mistakes:

1. Overestimating repayment capacity. A DSCR calculated on an overly optimistic normalised EBITDA — without a -10% or -20% stress test — exposes the structure to a covenant breach from the very first year of underperformance.

2. Neglecting the tax treatment of the management package. In France, recharacterisation of a management package gain as salary can generate an additional tax and social charge of 30 to 50% on the realised gain.

3. Ignoring covenants until the first breach. Financial covenants are negotiable at signing — they are no longer negotiable after a breach.

4. Under-capitalising the NewCo in Switzerland. AFC thin capitalisation rules impose strict debt/asset ratios based on asset type — 70% for equity investments, 85% for real estate.

5. Omitting the tax ruling before an OBO. An OBO executed without a prior tax ruling exposes the owner-manager to a subsequent tax reassessment on the entire gain.

Case Studies

Case 1 — MBO of a Swiss industrial SME

Precision components manufacturer, Canton of Vaud, CHF 18.0M turnover, CHF 2.8M normalised EBITDA after financial due diligence. Agreed valuation: CHF 12.0M (4.3x EBITDA). Financing structure: CHF 4.8M equity + CHF 6.0M senior debt (SARON + 2.5%, amortising over 5 years) + CHF 1.2M vendor loan (5% interest, 4 years). Annual debt service: 1.491M. DSCR: 1.88x. Leverage: 2.6x EBITDA. Cantonal tax ruling obtained in 3 weeks. Management package: sweet equity 15%, ratchet to 20% if fund IRR > 25%.

Case 2 — OBO of a Franco-Swiss owner-manager

Geneva-based owner-manager, aged 57, services company CHF 25.0M (EBITDA CHF 3.5M). Swiss holding created, acquires 60% for CHF 15.0M: CHF 9.0M senior debt (debt/participation ratio = 36% — within AFC thin capitalisation cap of 70%) + CHF 6.0M family office investor (25% of total capital). AFC ruling obtained: capital gain of CHF 13.5M exempt from income tax. DSCR: 1.13x. Owner retains 40% direct operational stake + holding control (75% of total capital). Exit envisaged in 5–7 years.

Case 3 — BIMBO in the business services sector

Franco-Swiss engineering consultancy, CHF 18.0M EV (EBITDA CHF 3.1M). The incumbent technical director and an experienced external CEO partner in a BIMBO. Structure: CHF 6.0M equity + CHF 10.0M senior debt (SARON + 2.2%) + CHF 2.0M seller vendor loan. Annual service: 2.137M. DSCR: 1.45x. Leverage: 3.9x EBITDA. Total management sweet equity 10%, ratchet to 15% if IRR > 20%. Locked-box pricing. 18-month seller handover.

FAQ — Frequently Asked Questions on Financial Structuring

What is the difference between an LBO and an MBO?
In a LBO, the initiative and the majority of equity come from an external PE fund. In an MBO, the incumbent management initiates the transaction and co-invests significantly (2–5% of the price).

What leverage level is acceptable for a Swiss SME?
Swiss lenders generally accept 3.5 to 4.5x normalised EBITDA in total debt, subject to a minimum DSCR of 1.25x in the base case and 1.10x in the stress scenario. AFC thin capitalisation rules impose an additional cap of 70% debt/assets for holding NewCos holding equity investments.

Is a tax ruling required before structuring an OBO in Switzerland?
Yes, without exception. The cantonal tax ruling confirms that the sale to the personal holding constitutes an exempt capital gain and not taxable professional income. The ruling is obtained in 3 to 6 weeks and binds the AFC for the entire duration of the transaction.

What is the total structuring cost of a Franco-Swiss LBO of CHF 15–30 million?
Structuring costs include: legal fees CHF 80,000–200,000, financial advisory 1–2.5% of transaction price, financial due diligence CHF 50,000–150,000, bank fees 1–2% of debt raised. Total: 4 to 7% of enterprise value.

Is the vendor loan tax-deductible for the acquirer?
Yes, subject to two conditions: the interest rate must be an arm’s length market rate and the total debt must comply with thin capitalisation rules. The vendor loan documentation — formal contract with market rate, subordination agreement — is essential.

A Word from the Managing Partner

Financial structuring is often perceived, wrongly, as a technical matter — a modelling exercise reserved for debt and corporate law specialists. In reality, it is first and foremost a human matter. Every transaction we advise on is unique. Behind every LBO, there is an entrepreneur who has spent twenty years of their life building a business and who wonders what this transaction will mean for their teams, their clients, and for themselves. Our role at Hectelion is not to impose a standard template on a complex reality. It is to listen, to understand the real objectives — wealth, operational, human — before opening a financial model.

— Aristide Ruot, Ph.D, Founder of Hectelion

Conclusion: Financial Structuring, the Strategic Lever of Every Business Transfer

LBO, MBO, MBI, BIMBO, OBO — each transaction form responds to a specific context, a particular acquirer profile and distinct wealth objectives. For Franco-Swiss executives contemplating a transfer, an acquisition or a partial liquidity event, specialist advisory in financial structuring is decisive. Rigorous upfront analysis, including target valuation using recognised methodologies and calculation of the WACC, is the foundation of any structure defensible before banks, tax authorities and co-investors. Hectelion advises executives, investors and acquirers in the design, structuring and execution of their acquisition and transfer transactions in France and Switzerland. Discover our financial structuring service.