Corporate Restructuring in Germany: Merger, Conversion & Spin-off

Four Types of Corporate Restructuring in Germany Under the UmwG

The Umwandlungsgesetz (UmwG) of 28 October 1994 is Germany's Corporate Transformation Act, providing the statutory framework for all corporate restructurings (UmwG §§1–325). Four mechanisms are available: Verschmelzung (merger, §§2–122 UmwG) — two entities merge into one by universal succession; Spaltung (demerger, §§123–173 UmwG) — one entity splits into two or more; Formwechsel (conversion, §§190–304 UmwG) — change of legal form without asset transfer; and Vermögensübertragung (asset transfer, §§174–189 UmwG) — rarely used commercially. All four mechanisms require notarial certification of the transformation resolution or agreement (§6 UmwG) and registration in the Handelsregister. A 75% shareholder majority is required for Verschmelzung and Formwechsel.

• Verschmelzung (§§2–122 UmwG): merger by absorption or new entity formation; transferring entity ceases to exist
• Spaltung (§§123–173 UmwG): Aufspaltung (full split), Abspaltung (partial spin-off), Ausgliederung (hive-out)
• Formwechsel (§§190–304 UmwG): change of legal form; legal continuity; no asset transfer
• Vermögensübertragung (§§174–189 UmwG): full asset transfer; rarely used in commercial contexts
• All four: notarial certification mandatory (§6 UmwG); no exceptions
• 75% shareholder majority required for Verschmelzung (§65(1) UmwG) and Formwechsel

Verschmelzung — How Two German Companies Merge Under UmwG §§2–122

A Verschmelzung transfers all assets, liabilities, and legal relationships of the transferring entity (übertragende Gesellschaft) to the surviving or new entity by universal succession. The transferring entity is dissolved without liquidation. Two forms exist: Verschmelzung durch Aufnahme (absorption — one existing company absorbs another) and Verschmelzung zur Neugründung (consolidation — both entities merge into a newly formed entity). The process requires a notarially certified Verschmelzungsvertrag (§6 UmwG), shareholder approval by 75% majority at each company (§65(1) UmwG), a 1-month creditor objection period (§22 UmwG), and Handelsregister registration at which point the merger takes legal effect (dingliche Wirkung). All employees transfer automatically under §324 UmwG read with §613a BGB.

Spaltung — Aufspaltung, Abspaltung, and Ausgliederung

Spaltung (demerger, UmwG §§123–173) divides a company's assets among multiple entities through three distinct mechanisms. Aufspaltung (full split): the original entity ceases to exist; all assets are divided between two or more successor entities; shareholders receive shares in the successor entities. Abspaltung (partial spin-off): the original entity continues with its remaining assets; a defined business division (Teilbetrieb) transfers to an existing or new entity; shareholders receive shares in both the original and the receiving entity. Ausgliederung (hive-out): the original entity transfers assets to a subsidiary and receives shares in the receiving entity in return — not the shareholders. The Ausgliederung is by far the most commonly used mechanism for carving business lines into separate subsidiaries. All Spaltung types require a notarially certified Spaltungsplan or Spaltungsvertrag (§125 UmwG read with §6 UmwG).

• Aufspaltung: original entity dissolves; all assets to two or more successors; shareholders receive shares in successors
• Abspaltung: original entity continues; partial assets to new/existing entity; shareholders receive shares in both
• Ausgliederung: original entity continues; partial assets to subsidiary; original entity (not shareholders) receives shares
• Ausgliederung zur Neugründung: creates a new GmbH subsidiary simultaneously — the standard subsidiary carve-out route
• §133 UmwG: 5-year joint-and-several creditor liability for pre-split obligations — cannot be excluded by contract
• UmwStG §15: book-value Spaltung requires that each transferring business unit qualifies as an independent Teilbetrieb

Formwechsel — Changing Legal Form Without Transferring Assets

A Formwechsel (UmwG §§190–304) allows a company to change its legal form — for example, GmbH to AG — while retaining its legal identity, all contracts, licences, employment relationships, and bank accounts. No asset transfer takes place. This is the most procedurally efficient restructuring route when only the legal form needs to change. The GmbH-to-AG Formwechsel is the most commercially significant variant, typically used by VC-backed companies preparing for institutional investment rounds or potential stock exchange listing. The AG requires an Aufsichtsrat (supervisory board) and produces more publicly visible accounts — significant governance changes from the GmbH regime. A Formwechsel requires a Umwandlungsbeschluss (75% majority, notarially certified), an Umwandlungsbericht (conversion report), and Handelsregister registration.

• Legal continuity: same HR number, same contracts, same employees, same licences — no contract novation required
• GmbH → AG (most common): VC/IPO preparation; 75% shareholder majority + new AG Satzung + Aufsichtsrat appointment
• AG → GmbH: cost reduction; eliminates mandatory Aufsichtsrat below 500 employees
• GmbH → GmbH & Co. KG: tax planning (corporate tax to pass-through); requires simultaneous KG formation
• Advantage over dissolution + new incorporation: no licence re-application, no contract novation, no new bank account
• Cash compensation for dissenting shareholders: §207 UmwG right to exit at fair price if voting against Formwechsel

UmwStG — Tax-Neutral Restructuring Under the Umwandlungssteuergesetz

The Umwandlungssteuergesetz (UmwStG) governs the tax treatment of UmwG restructurings. The default rule is that a transfer of assets triggers realisation of stille Reserven (hidden reserves) at fair market value, creating a Körperschaftsteuer and Gewerbesteuer liability at the moment of restructuring — even though no cash is received. The UmwStG allows book-value carryover (Buchwertfortführung) if three conditions are met: (1) Germany's right to tax the transferred assets post-restructuring is not restricted (Entstrickungsneutralität); (2) the receiving entity is within the EU/EEA or a qualifying country; (3) the transfer has economic justification beyond pure tax optimisation. The book-value election must be made in the Umwandlungssteuerantrag filed with the Finanzamt. Failure to elect correctly results in mandatory fair market value taxation — potentially a significant liability for GmbHs with IP, goodwill, or appreciating real estate.

• Default: realisation of stille Reserven (hidden reserves) at fair market value → KSt + GewSt immediately
• Book-value election (Buchwertfortführung): deferral of gain; conditions: Germany's taxing right preserved + EU/EEA entity + commercial purpose
• Umwandlungssteuerantrag: must be filed with competent Finanzamt; election is irrevocable once filed
• §22 UmwStG 7-year lock-up: share disposal within 7 years of book-value transfer triggers retroactive taxation
• M&A due diligence checklist: (1) prior UmwG restructurings in last 7 years? (2) book-value transfer? (3) hidden reserves at time? (4) 7-year period elapsed? (5) outstanding UmwStG notifications at Finanzamt?
• Cross-border UmwStG: EU Merger Directive 2009/133/EC extends neutrality to EU/EEA; non-EU (US, UK, UAE) requires case-by-case analysis

Merger Control — Bundeskartellamt and EU Commission Notifications

German domestic merger control under GWB §35(1) applies when: combined worldwide revenues of all parties exceed €500 million AND German revenues of the target exceed €25 million AND German revenues of the acquirer exceed €25 million. An additional transaction value threshold under GWB §35(1a) — introduced in 2017 for the digital economy — requires notification if the transaction value exceeds €400 million and the target has significant German operations, even if revenue thresholds are not met. EU-level notification at the European Commission (EUMR — EU Reg. 139/2004) applies when combined worldwide revenues exceed €5 billion and EU revenues of each of at least two parties exceed €250 million — in which case the EU Commission has exclusive competence (one-stop-shop) and Bundeskartellamt filing is not required. Completing a notifiable transaction before Bundeskartellamt clearance renders it legally void under GWB §41 — a catastrophic outcome.

Cross-Border Mergers — EU Directive 2019/2121 and Non-EU Considerations

Since the UmRUG (effective January 2023) implementing EU Directive 2019/2121, German companies can engage in cross-border mergers, demergers, and conversions with other EU Member State entities using a harmonised procedure. The German side requires a Rechtmäßigkeitsbescheinigung (legality certificate) from the competent Amtsgericht confirming German-law compliance before the merger is registered in the foreign Member State. Employee co-determination (Mitbestimmung) protection must be preserved or renegotiated in the surviving entity. UK companies (private limited companies, Ltd) lost access to the EU cross-border merger Directive on 1 January 2021 — a UK-German merger now requires an asset deal or UK scheme of arrangement. Non-EU entities (US, UAE, Singapore) have no statutory cross-border merger mechanism with Germany — transactions typically proceed as asset deals or 100% share acquisitions followed by upstream domestic merger.

• EU Directive 2019/2121 (UmRUG): harmonised cross-border merger, Spaltung, and Formwechsel within EU
• Rechtmäßigkeitsbescheinigung: German Amtsgericht certificate required before registration in foreign Member State
• Employee co-determination (Mitbestimmung): mandatory negotiation in surviving entity for cross-border EU mergers
• UK Ltd post-Brexit: EU cross-border merger Directive NOT available since 1 January 2021; asset deal or scheme required
• Non-EU entities (US, UAE, Singapore): no statutory cross-border merger mechanism; use asset deal or acquisition + domestic merger
• SE (Societas Europaea) formation: cross-border merger route to create a European Company; used by larger listed groups

The Notary's Role in UmwG Restructurings

Every UmwG restructuring — without exception — requires notarial certification (notarielle Beurkundung) of the core transaction document: the Verschmelzungsvertrag, Spaltungsplan or Spaltungsvertrag, or Umwandlungsbeschluss (§6 UmwG). There is no UmwG transaction that can be completed without a German notary. Notary fees are calculated under GNotKG based on the Geschäftswert (transaction value); for significant restructurings with asset values in the tens of millions, fees can reach €5,000–€50,000. Foreign parties who cannot attend in person may grant a power of attorney (Vollmacht) to a German representative — the power of attorney must itself be notarially certified and, for documents executed abroad in Hague Convention signatory countries, apostilled.

• §6 UmwG: notarial certification mandatory for ALL UmwG acts — Verschmelzungsvertrag, Spaltungsplan, Umwandlungsbeschluss
• No exceptions: UmwG restructuring without a German notary is legally impossible
• GNotKG notary fees: scale with Geschäftswert (transaction value); significant restructurings: €5,000–€50,000+
• Foreign party participation: notarised + apostilled power of attorney (Vollmacht) for Hague Convention countries
• Non-Hague countries: consular legalisation required for power of attorney
• our firm acts as authorised representative for foreign parties in UmwG transactions

Shareholder Rights and Minority Protections in UmwG Transactions

German corporate law provides extensive minority shareholder protections in UmwG transactions. Dissenting shareholders in a Verschmelzung may demand cash consideration in lieu of shares (§29 UmwG) if the exchange ratio is inadequate. In a Formwechsel, dissenting shareholders have an exit right at a fair price under §207 UmwG. The Spruchverfahren (exchange ratio review, SpruchG §1) allows minority shareholders to challenge the adequacy of the exchange ratio in a court proceeding after the merger — additional cash compensation is payable if the court determines the ratio was insufficient. In addition, GmbHG §46 Nr.4 requires explicit shareholder approval for disposal of all or substantially all GmbH assets — a provision triggered by large Spaltung or Ausgliederung transactions.

• §29 UmwG: cash consideration for dissenting Verschmelzung shareholders if exchange ratio inadequate
• §207 UmwG: exit right at fair price for dissenting Formwechsel shareholders
• Spruchverfahren (SpruchG §1): court review of exchange ratio; additional cash if ratio found inadequate
• 75% majority required: Verschmelzung (§65(1) UmwG) + Formwechsel — minority (25%+) can block
• GmbHG §46 Nr.4: shareholder consent required for disposal of all/substantially all GmbH assets
• Squeeze-out in Verschmelzung context: AktG §327a (AG) or §39a UmwG if acquirer holds >90% post-merger

Transparenzregister Obligations After a Restructuring

Any UmwG restructuring that results in a change of beneficial ownership in the surviving or new entity triggers an immediate Transparenzregister update obligation under GwG §20. The new beneficial owners (UBOs) — those with more than 25% ownership, voting rights, or equivalent control — must be registered within 14 days of the Handelsregister entry of the restructuring becoming effective. A Verschmelzung or Formwechsel that changes the ultimate ownership structure of a German GmbH or AG must therefore trigger an immediate Transparenzregister review as part of post-closing integration. Failure to update triggers fines of up to €100,000 for negligent breach and €150,000 for intentional breach under GwG §56. We handle the Transparenzregister update as part of all UmwG transactions.

• GwG §20: Transparenzregister update required within 14 days of Handelsregister registration of restructuring
• Applies to: Verschmelzung, Spaltung, Formwechsel — any UmwG act that changes beneficial ownership
• UBOs to register: individuals with >25% ownership, voting rights, or equivalent control in surviving entity
• Fines: GwG §56 — up to €100,000 (negligent) or €150,000 (intentional) per violation
• Post-closing checklist: Transparenzregister update is standard item alongside Handelsregister notification
• We handle Transparenzregister update as part of all UmwG transaction closings

Alternatives to UmwG Restructuring

Not every corporate reorganisation requires the UmwG machinery. A share deal (Anteilskauf) under §15 GmbHG is the simplest transfer mechanism — 100% of GmbH shares change hands without creditor protection periods, Verschmelzungsprüfung, or 75% majority requirements (100% is typically needed). An asset deal (Einzelrechtsnachfolge) transfers individual assets and contracts rather than by universal succession — useful to avoid hidden liabilities but requires individual assignment of each contract (counterparty consent needed for commercial contracts) and does not trigger §613a BGB automatic employee transfer. Voluntary dissolution (GmbHG §60 ff.) is a termination mechanism, not a restructuring, and triggers a 1-year liquidation Sperrjahr during which creditor claims are satisfied.

• Share deal (§15 GmbHG): simplest transfer; no creditor protection period; no notarial certification beyond §15 GmbHG requirements
• Asset deal (Einzelrechtsnachfolge): avoids hidden liabilities; avoids §133 UmwG joint liability; contract assignment requires counterparty consent
• Dissolution (§60 GmbHG): termination mechanism; 1-year Sperrjahr for creditor satisfaction; not a restructuring
• Share deal advantage: clean; no UmwStG book-value election needed; buyer acquires existing entity with all contracts
• Asset deal advantage: buyer controls exactly which assets and liabilities are acquired; pre-known liability profile
• UmwG advantage: universal succession; employee transfer automatic; legal continuity; potential tax neutrality under UmwStG

Common Mistakes in German Corporate Restructurings

Seven mistakes account for the majority of restructuring failures and regulatory penalties encountered by foreign companies in Germany. All seven are avoidable with proper legal advice — and all seven carry consequences ranging from void transactions to criminal liability.

• Mistake 1: Completing a notifiable merger before Bundeskartellamt clearance — transaction is legally void under GWB §41; fines up to 10% worldwide revenues
• Mistake 2: Missing the UmwStG §22 7-year lock-up in M&A due diligence — retroactive gain taxation triggered on disposal within 7 years of prior book-value transfer
• Mistake 3: Ignoring §133 UmwG 5-year joint-and-several creditor liability in Spaltung acquisitions — pre-split liabilities follow the demerged entity for 5 years
• Mistake 4: Not securing the required 75% shareholder majority before executing the Verschmelzungsvertrag — resolution defect makes the transaction voidable
• Mistake 5: Assuming a UK Ltd can use the EU cross-border merger Directive post-Brexit — UK companies lost EU access on 1 January 2021; use asset deal instead
• Mistake 6: Not checking GWB §35(1a) transaction value threshold for digital economy targets — notification required even if revenue thresholds not met
• Mistake 7: Forgetting Transparenzregister update after restructuring — GwG §20 breach triggers fines under GwG §56 up to €150,000

How We Help — M&A and UmwG Restructuring Services

German Company Formation provides full-service UmwG restructuring services from our Düsseldorf office at Graf-Adolf-Strasse 41, 40215 Düsseldorf — well-placed for Bundeskartellamt filings (Bonn, NRW). Our lawyers structure and draft Verschmelzungsverträge, Spaltungspläne, and Umwandlungsbeschlüsse; coordinate German notaries for certification; manage Handelsregister registration; and advise on minority shareholder rights, employee consultation obligations under §21 UmwG and §613a BGB, and cross-border merger logistics under EU Directive 2019/2121. Our Steuerberater analyse UmwStG book-value eligibility, prepare Umwandlungssteueranträge, and advise on the §22 UmwStG 7-year lock-up for M&A transactions. Contact us at +49 176 26888856 or info@germancompanyformation.com.

• UmwG transaction structuring: Verschmelzung, Spaltung (Abspaltung / Ausgliederung), Formwechsel — all types
• UmwStG analysis: book-value election eligibility; Entstrickungsneutralität assessment; §22 UmwStG lock-up planning
• Bundeskartellamt: German merger control notification — threshold check + Phase 1/Phase 2 submission
• Cross-border EU mergers: Rechtmäßigkeitsbescheinigung; EU Directive 2019/2121 procedure
• Employee consultation: §21 UmwG + §613a BGB; Betriebsrat information and consultation
• Free 30-minute restructuring consultation — phone, WhatsApp +49 176 26888856, info@germancompanyformation.com