Purchase of a Company in Germany: Legal Process, Tax, and Financing

Asset Deal vs Share Deal — Core Comparison

An Unternehmenskauf (company acquisition) in Germany takes one of two fundamental legal forms: an asset deal (Erwerb einzelner Wirtschaftsgüter) or a share deal (Anteilserwerb). In an asset deal, the buyer acquires specified assets and liabilities — not the legal entity itself — meaning historic liabilities generally stay with the seller. In a share deal, the buyer acquires ownership of the company itself, inheriting all historic liabilities. The choice between structures has profound consequences for VAT, real estate transfer tax, tax step-up benefits, and liability allocation.

GmbH Share Transfer — Notarial Requirements

Shares in a GmbH (Gesellschaft mit beschränkter Haftung) can only be validly transferred by a notarially authenticated agreement under §15(3) GmbHG. A mere private written agreement between buyer and seller has no legal effect — the transfer is void until the notarial deed is executed. The notary records the transaction, amends the Gesellschafterliste (shareholder register), and files the updated list with the Handelsregister within three months under §40 GmbHG. Third parties dealing with a GmbH are entitled to rely on the published Gesellschafterliste as definitive evidence of share ownership.

• §15(3) GmbHG: GmbH share transfer requires notarially authenticated agreement — private contract is void
• Notary records transaction, issues updated Gesellschafterliste, and files with Handelsregister
• §40 GmbHG: updated Gesellschafterliste must be filed within 3 months of transfer
• Published list: third parties may rely on it as evidence of ownership (§16 GmbHG)
• AG shares: transfer via bank Depot — no notarisation required; registered shares require Aktienregister update

Due Diligence — Scope and Key Focus Areas

Due diligence in a German M&A transaction typically covers financial, legal, tax, HR, environmental, and commercial workstreams. Financial due diligence reviews three years of Jahresabschlüsse (annual financial statements under HGB) and monthly BWA (Betriebswirtschaftliche Auswertung — management accounts from DATEV). Legal due diligence examines the Gesellschaftsvertrag (§10 GmbHG articles), shareholder resolutions, key contracts, IP ownership, pending litigation, and environmental compliance. Employee due diligence reviews the list of all employees and their contracts — critical for §613a BGB transfer-of-undertaking exposure.

• Financial: 3 years HGB Jahresabschlüsse + monthly BWA; normalised EBITDA calculation; working capital
• Legal: §10 GmbHG Gesellschaftsvertrag, shareholder resolutions, key contracts, IP register, pending claims
• Tax: corporate tax assessments (Körperschaftsteuerbescheid), trade tax (Gewerbesteuer), VAT position, transfer pricing
• HR/Employment: employee list, employment contracts, works council agreements (Betriebsvereinbarungen), pension obligations
• Environmental: Bodenschutzgesetz compliance, contamination liability (Altlasten), waste permits (BImSchG)

Business Valuation Methods Used in Germany

German business valuations draw on four main methodologies. The IDW S1 Ertragswertverfahren (earnings value method) is the authoritative standard for German courts and expert opinions — it capitalises expected future earnings using a risk-adjusted discount rate. In practice, most SME transactions use an EBITDA multiple of 4–8x (lower for trade businesses, higher for SaaS or recurring-revenue models). The DCF (Discounted Cash Flow) method applies to larger or internationally benchmarked transactions. The Substanzwertverfahren (net asset value) is used as a floor value or for asset-heavy businesses.

• IDW S1 Ertragswertverfahren: authoritative German valuation standard — used in litigation, divorce proceedings, and inheritance disputes
• EBITDA multiple: 4–8x for SMEs; sector-dependent — software/SaaS trades higher; traditional trade lower
• DCF method: applied for larger transactions or international buyers; requires detailed 5-year financial model
• Substanzwertverfahren: net asset value — used as floor or for asset-heavy, capital-intensive businesses
• Working capital normalisation: critical adjustment in any deal — Locked-box or Completion Accounts mechanism

SPA Structure — Key Clauses in German M&A

The Share Purchase Agreement (SPA, Unternehmenskaufvertrag) governs the rights and obligations of buyer and seller. German SPAs typically use either a Locked-box mechanism (fixed price based on a historical balance sheet) or Completion Accounts (price adjusted based on actual balance sheet at closing). MAC (Material Adverse Change) clauses allow the buyer to withdraw if a major adverse event occurs between Signing and Closing. Representations and warranties (Zusicherungen und Gewährleistungen) cover accuracy of disclosed information; indemnities (Freistellungen) cover specific known risks. W&I insurance has become standard for transactions above €5 million.

• Locked-box: purchase price fixed at Signing based on agreed historical balance sheet — no post-closing adjustment
• Completion Accounts: price adjusted at Closing based on actual balance sheet — more flexible but slower
• MAC clause: buyer withdrawal right if material adverse change in target between Signing and Closing
• Reps & warranties: seller confirms accuracy of disclosed financial, legal, and operational information
• W&I insurance: warranties and indemnities insurance standard for transactions above €5M — bridges seller-buyer gap

Real Estate Transfer Tax — §1(2a)/(2b) GrEStG Anti-Avoidance

Germany's Grunderwerbsteuer (RETT) applies to real property transfers at rates of 3.5%–6.5% depending on the Bundesland (e.g. Bavaria 3.5%, Schleswig-Holstein 6.5%). In a share deal involving a company with real property, RETT anti-avoidance rules under §1(2a) and §1(2b) GrEStG apply. If a buyer acquires 90% or more of the shares in a company owning German real property within a 10-year observation period, RETT is triggered as if the property were directly transferred. Careful structuring of minority interests and staggered acquisitions can sometimes mitigate exposure but requires expert tax advice.

• GrEStG RETT rates: 3.5% (Bavaria, Saxony) to 6.5% (Schleswig-Holstein, Thuringia, NRW)
• §1(2a) GrEStG: partnership share deal — 90% acquisition within 10 years triggers RETT on real property
• §1(2b) GrEStG: corporation share deal — same 90% / 10-year rule applicable since July 2021 reform
• RETT base: Grundbesitzwert (property tax value) — typically 70%–90% of market value
• Structuring option: retaining ≥10% with pre-existing minority shareholder may defer RETT — requires expert advice

§613a BGB — Mandatory Employee Transfer by Operation of Law

§613a BGB provides that in any Betriebsübergang (transfer of undertaking), all employment contracts transfer automatically by operation of German law to the buyer. This applies to both asset deals and certain share restructurings that amount to a change of employer. The seller and buyer are jointly and severally liable for obligations arising before the transfer date for one year. Employees must be individually notified in writing before the transfer; they have a right to object (Widerspruchsrecht) within one month — objecting employees remain with the seller. Collective agreements (Betriebsvereinbarungen and Tarifverträge) also transfer and cannot be unilaterally changed for one year.

• §613a(1) BGB: all employment contracts transfer automatically — buyer cannot cherry-pick employees
• Joint and several liability: seller and buyer jointly liable for pre-transfer obligations for 12 months
• Written notification: employees must receive individual written Unterrichtung before the transfer (§613a(5) BGB)
• Widerspruchsrecht: employees may object within 1 month of notification — objecting employees stay with seller
• Collective agreements: Betriebsvereinbarungen and Tarifverträge transfer and are binding for 1 year

Acquisition Financing — KfW, Mezzanine, and Earn-outs

Acquisition financing for SME transactions in Germany commonly combines senior bank debt, KfW subsidised lending, and equity or mezzanine instruments. The KfW ERP-Kapital programme offers subordinated loans up to €500,000 for business acquisitions by new owner-operators; the KfW-Unternehmerkredit extends to €25 million for larger transactions. Mezzanine finance (subordinated debt with equity-linked returns) bridges the gap between senior debt and equity, typically at 10%–15% returns. Earn-out clauses link a portion of the purchase price to post-acquisition performance — useful when buyer and seller disagree on future earnings projections.

• KfW ERP-Kapital: subordinated loans up to €500,000 for new owner-operators — applied via house bank
• KfW-Unternehmerkredit: senior loans up to €25M for established businesses — bank-on-lent programme
• Mezzanine: subordinated debt with equity-like returns (10%–15%); counts as equity in bank debt calculations
• Earn-out: deferred price element contingent on post-closing financial performance — typically 2–3 years
• Leverage ratio: senior debt typically limited to 3–4x EBITDA in SME acquisition finance

Signing vs Closing — The German M&A Timeline

German M&A transactions distinguish between Signing (execution of the SPA) and Closing (legal transfer of shares or assets and payment of the purchase price). The gap between Signing and Closing is typically 4–12 weeks and is used to satisfy Closing conditions (Vollzugsbedingungen) — such as regulatory approvals, merger control clearance (GWB §35 — mandatory if combined German turnover exceeds €500M and each party has >€25M German turnover), works council consultation, or financing commitment. At Closing, the notary issues a Vollzugsprotokoll confirming all conditions are met, and the wire transfer of the purchase price occurs simultaneously.

• Signing: SPA executed — legally binding but shares/assets not yet transferred; purchase price not paid
• Closing conditions: regulatory approvals, merger control (GWB §35), works council hearing, financing
• GWB §35 merger control: mandatory Bundeskartellamt notification if combined German turnover >€500M + each party >€25M
• Closing: notary issues Vollzugsprotokoll; Gesellschafterliste updated; purchase price wired simultaneously
• Post-closing: §40 GmbHG Gesellschafterliste filed with Handelsregister within 3 months of transfer