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AG Formation Guide — German Aktiengesellschaft (Public Limited Company)
The Aktiengesellschaft (AG) is Germany's public limited company, governed by the Aktiengesetz (AktG). It requires €50,000 minimum capital, a supervisory board, and is suited to VC-backed companies and future IPO candidates.
What Is an AG (Aktiengesellschaft)?
The Aktiengesellschaft is Germany's public limited company structure, governed by the Aktiengesetz (AktG). Shares (Aktien) represent equal portions of share capital and can be freely transferred without notarial involvement, unlike GmbH shares. An AG can list on a stock exchange (Börse) and is the required structure for IPOs. However, most AGs in Germany remain private (nicht-börsennotiert). The AG has full legal personality from Handelsregister entry under AktG §41(1).
- Minimum share capital: €50,000 (AktG §7)
- Shares can be bearer (Inhaberaktien) or registered (Namensaktien)
- Mandatory two-tier governance: Vorstand + Aufsichtsrat
- Shares transferable without notary — freely tradeable
- Required for stock exchange listing (Börsennotierung)
AG vs. GmbH — Structural Comparison
The AG is considerably more complex to operate than a GmbH due to mandatory supervisory board requirements, stricter shareholder meeting rules, and mandatory disclosure obligations. For most foreign entrepreneurs, the GmbH is preferable unless VC investment structures or share-based compensation plans (Aktienoptionsprogramme) are required.
| Feature | AG | GmbH |
|---|---|---|
| Min. capital | €50,000 (AktG §7) | €25,000 (GmbHG §5) |
| Governing law | Aktiengesetz (AktG) | GmbHG |
| Supervisory board | Mandatory (AktG §95) | Optional (GmbHG §52) |
| Management board | Vorstand (AktG §76) | Geschäftsführer (GmbHG §35) |
| Share transfer | No notary required | Notarial deed required (GmbHG §15) |
| Share classes | Multiple possible (AktG §11) | Flexible (GmbHG §47) |
| Annual audit | Always mandatory (AktG §316 HGB) | Only for medium/large GmbH |
| Formation time | 4–8 weeks | 2–4 weeks |
AG Formation Process
AG formation under AktG §§23–53 is more involved than GmbH formation. The process begins with drafting the Satzung (articles of association) by a German lawyer, followed by notarial certification (Beurkundung), appointment and acceptance of Vorstand and Aufsichtsrat members, an inaugural supervisory board meeting, and Handelsregister filing. Notary fees for an AG are higher than for a GmbH due to the higher capital amount.
- Step 1: Draft Satzung (AktG §23) — mandatory company name, Sitz, purpose, share capital, and share structure
- Step 2: Notarial Beurkundung of formation deed and Satzung
- Step 3: Appoint Vorstand (management board) — minimum 1 person
- Step 4: Appoint Aufsichtsrat (supervisory board) — minimum 3 members (AktG §95)
- Step 5: Inaugural Aufsichtsrat meeting and Vorstand appointment confirmation
- Step 6: Deposit €50,000 (or 25% = €12,500 minimum) in AG bank account
- Step 7: File with Handelsregister via notary
The Two-Tier Governance Structure
The AG is governed by a strict two-tier system mandated by AktG: the Vorstand (management board) handles day-to-day operations and is appointed by the Aufsichtsrat; the Aufsichtsrat (supervisory board) monitors the Vorstand and approves major transactions. These two bodies must consist of different people — a Vorstand member cannot simultaneously sit on the Aufsichtsrat. The Hauptversammlung (shareholder general assembly) holds residual powers including election of the Aufsichtsrat.
For AGs with more than 500 employees, German co-determination law (Mitbestimmungsgesetz or Drittelbeteiligungsgesetz) requires employee representatives on the Aufsichtsrat — up to 50% of Aufsichtsrat seats. This is a significant structural obligation for growing companies and must be planned from the outset.
Share Capital and Share Classes
The AG's share capital (Grundkapital) of at least €50,000 is divided into shares (Aktien) with a minimum nominal value of €1 per share under AktG §8. Shares can be registered (Namensaktien — require a shareholder register) or bearer shares (Inhaberaktien — restricted since the 2019 Aktienrechtsmodernisierungsgesetz to listed companies only). Most private AGs use registered shares. Multiple share classes (e.g. ordinary vs. preference shares with priority dividends) are possible under AktG §11.
| Share Type | Transferability | Shareholder Register Required | Notes |
|---|---|---|---|
| Namensaktien (registered) | Free unless vinkuliert | Yes — Aktienbuch | Standard for private AGs |
| Vinkulierte Namensaktien | Requires AG board consent | Yes | Used for restricted transfer |
| Inhaberaktien (bearer) | Free transfer | No | Only listed AGs since 2019 |
Annual Audit Obligation
Every AG is subject to mandatory statutory audit (Pflichtprüfung) under HGB §316, regardless of size. The annual financial statements (Jahresabschluss) and management report (Lagebericht) must be audited by a qualified Wirtschaftsprüfer (certified public accountant). The audited accounts are then approved at the annual Hauptversammlung and filed with the Bundesanzeiger. Audit costs for a small private AG typically range from €5,000 to €20,000 per year.
- HGB §316: mandatory audit for all AGs, no size exceptions
- Wirtschaftsprüfer must be appointed by Aufsichtsrat — AktG §119
- Annual accounts approved at Hauptversammlung within first 8 months
- Bundesanzeiger filing required — same as GmbH
Costs of Forming and Running an AG
The AG has higher formation and ongoing compliance costs than a GmbH. Formation costs include notary fees (approximately €1,500–3,000 based on €50,000 capital), court filing fee (~€300), legal fees for drafting the Satzung (~€2,000–5,000), and the mandatory Wirtschaftsprüfer engagement. Ongoing annual costs include audit (€5,000–20,000), Aufsichtsrat member remuneration, Hauptversammlung organisation, and Bundesanzeiger publication.
| Cost Item | One-Time | Annual |
|---|---|---|
| Notary fees (€50,000 capital) | ~€1,500–3,000 | — |
| Court filing fee | ~€300 | — |
| Legal drafting (Satzung) | ~€2,000–5,000 | — |
| Statutory audit (Wirtschaftsprüfer) | — | €5,000–20,000 |
| Steuerberater / accounting | — | €3,000–10,000 |
| Bundesanzeiger publication | — | €100–500 |
| Aufsichtsrat remuneration | — | €0–10,000+ |
Why Choose an AG?
The AG is the preferred structure for companies planning a stock exchange listing (IPO), requiring equity-based employee compensation through Aktienoptionsprogramme, or needing freely tradeable shares for VC investment rounds. The AG's strict governance and mandatory audit provide institutional credibility. For most foreign entrepreneurs establishing a German operating entity without IPO plans, the GmbH offers comparable protection with significantly lower compliance overhead.
- Required for Frankfurt Stock Exchange (Frankfurter Wertpapierbörse) listing
- Enables stock option plans (Aktienoptionsprogramme) for employees — AktG §192
- Freely tradeable registered shares without notary — advantageous for VC rounds
- Institutional investors (pension funds, family offices) often prefer AG governance
- KGaA (Kommanditgesellschaft auf Aktien) variant combines AG and partnership features
SE — Societas Europaea as Alternative
The Societas Europaea (SE) is a European public limited company that can operate under a single statute across EU member states. It requires a minimum capital of €120,000 and can be formed by converting an existing AG or merging two EU companies. The SE is used by multinationals for pan-European operations, as it allows moving the registered office between EU states without dissolution. Examples: BASF SE, Allianz SE, Volkswagen AG (has not converted).
An SE formed by converting a German AG must involve employees in negotiating the SE employee involvement agreement (SE-Beteiligungsgesetz). This process typically takes 3–6 months and requires a special negotiating body. Companies that skip this step face administrative fines and delay.
Frequently Asked Questions
What is the minimum share capital for a German AG?
Under AktG §7, the minimum share capital (Grundkapital) is €50,000, divided into shares with a minimum nominal value of €1 each (AktG §8). At least 25% of each share's nominal value must be paid in on formation — so the minimum cash deposit before Handelsregister filing is €12,500. The remaining 75% must be called up as needed.
Does an AG require a supervisory board?
Yes, unconditionally. Under AktG §95, every AG must have an Aufsichtsrat (supervisory board) with a minimum of 3 members. There is no size threshold or exception. The founding shareholders appoint the initial Aufsichtsrat members. Once the AG has 500+ employees, employee co-determination law applies and workers elect up to one-third of Aufsichtsrat seats.
Can a non-German resident be a Vorstand member of a German AG?
Yes. Neither AktG nor any other German law requires Vorstand members (management board directors) to be German residents or citizens. However, practical issues apply: the Vorstand member must be reachable for urgent regulatory matters, and some German banks require at least one locally resident Vorstand member for business account opening.
Is a statutory audit mandatory for all AGs?
Yes. Under HGB §316, all AGs are required to have their annual financial statements (Jahresabschluss) audited by a Wirtschaftsprüfer (certified public accountant) regardless of size. There is no small-company exemption for AGs. The audited accounts must be approved at the annual Hauptversammlung and published in the Bundesanzeiger.
How long does AG formation take in Germany?
AG formation typically takes 4–8 weeks from the notary appointment to Handelsregister entry. Additional time is needed for drafting the Satzung (articles), conducting the inaugural Aufsichtsrat meeting, and preparing the Vorstand appointment documentation. The Registergericht processing time is 2–4 weeks after notary filing. The AG has no legal personality until the Handelsregister entry is complete (AktG §41(1)).
Can a private AG issue shares to employees?
Yes. AGs can create authorised capital (genehmigtes Kapital) under AktG §202 and issue new shares to employees under stock option programmes (Aktienoptionsprogramme) authorised by AktG §192. Employee share programmes must be approved by the Hauptversammlung. This is a primary reason technology companies choose the AG over the GmbH — the GmbH structure makes equity compensation more legally complex and expensive.
What is the difference between an AG and a GmbH for foreign investors?
The AG offers freely transferable shares (no notary required), mandatory audit, and institutional governance, making it preferable for VC investment rounds, employee stock options, and eventual IPO. The GmbH requires a notarial deed for every share transfer (GmbHG §15), has no audit obligation for small companies, and is simpler to operate. Most foreign entrepreneurs choose the GmbH unless the AG's specific features are operationally necessary.
What are the ongoing compliance obligations of a German AG?
Annual obligations include: statutory audit by a Wirtschaftsprüfer, preparation and approval of annual accounts at the Hauptversammlung (within first 8 months of year-end), Bundesanzeiger publication, Transparenzregister update (GwG §20), quarterly advance tax payments, monthly/quarterly VAT filings, and full ELSTER filing for KSt, GewSt, and VAT returns. Ongoing costs typically exceed those of a comparable GmbH by €10,000–30,000 per year.
What is a mini-AG (kleine AG) and is it practical?
The "kleine AG" (small AG) concept emerged from the 1994 Gesetz für kleine Aktiengesellschaften, which simplified some formalities for non-listed AGs. For example, the Hauptversammlung can adopt resolutions without a notary in certain circumstances, and some §124 AktG publication obligations are relaxed. However, the mandatory Aufsichtsrat and Wirtschaftsprüfer requirements remain in full. The kleine AG is rarely used in practice — the GmbH remains preferable for small companies.
Can an AG be a holding company in Germany?
Yes. An AG can hold shares in subsidiaries and the §8b KStG participation exemption applies to dividends and capital gains from qualifying shareholdings (95% exemption). Listed AG holding companies benefit from capital market financing, while private AG holding companies benefit from the governance structure and freely tradeable shares. For pure holding purposes without listing plans, the GmbH is less expensive to operate.
What is the KGaA (Kommanditgesellschaft auf Aktien)?
The KGaA (Kommanditgesellschaft auf Aktien) is a hybrid structure combining a limited partnership with an AG. At least one general partner (Komplementär) bears unlimited liability and manages the company, while limited partners (Kommanditaktionäre) hold listed or transferable shares. It is used by family businesses wanting to list shares while retaining operational control (e.g. Henkel KGaA, Fresenius SE). Formation requires AktG rules for the share component plus HGB partnership rules.
How are AG dividends taxed in Germany?
Dividends paid by a German AG to individual shareholders are subject to 25% Abgeltungsteuer (capital gains tax) plus 5.5% solidarity surcharge = 26.375% withholding, under EStG §20(1). Corporate shareholders (GmbH or AG) receiving dividends benefit from the §8b KStG participation exemption: 95% of dividends are exempt from Körperschaftsteuer, making the effective tax rate approximately 1.5% for qualifying corporate shareholders. Double taxation treaties may reduce withholding for non-resident shareholders.
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