Part 2 · Germany / EU overview
The legal & tax reality
For a German resident, a product or agentic-AI business is almost certainly gewerblich and points toward a GmbH or UG. Incorporating in Estonia, the US or another EU state rarely escapes German tax if you live and manage from Germany.
The classification that decides everything
A Freiberufler is not a legal form but a tax status (§18 EStG) for “liberal professions.” Software development can qualify as freiberuflich — ingenieurähnliche Tätigkeit — if you have the qualifications (a Dipl.-Inform. strongly supports this). But selling a product — licenses, SaaS, a standardized agentic-AI product — is treated as gewerblich (commercial) by the Finanzamt.
Worse, the Abfärbetheorie (§15(3) No. 1 EStG, “infection theory”) means even a small slice of commercial revenue can reclassify all your income as gewerblich — unless it stays under a safe harbour (commercial revenue both <3% of turnover and <€24,500/year). The Finanzamt decides case-by-case and can reclassify retroactively, with back Gewerbesteuer plus interest.
Standardized application software, and especially selling software products or operating SaaS, is gewerblich. An agentic-AI product company is therefore very likely gewerblich.
German legal forms at a glance
| Form | Liability | Capital | Key notes |
|---|---|---|---|
| Einzelunternehmen | Unlimited (personal assets) | None | Simplest; as Freiberufler no Gewerbe registration, no Gewerbesteuer |
| Freiberufler status | Unlimited | None | Tax status, not a form; lost if activity becomes commercial |
| GbR / PartG / PartG mbB | Personal; mbB limits professional liability | None | For multiple founders; PartG preserves freiberuflich status |
| UG (haftungsbeschränkt) | Limited to company assets | From €1 | “Mini-GmbH”; must retain 25% of profit until reserves hit €25,000 |
| GmbH | Limited to company assets | €25,000 (≥€12,500 paid in) | Standard for a serious product business; notary + Handelsregister |
Both UG and GmbH are Kapitalgesellschaften: always gewerbesteuer- and körperschaftsteuerpflichtig, double-entry accounting, notary, Handelsregister, published accounts.
GmbH taxation, in brief
A GmbH’s profits bear roughly ~30% combined (corporate income tax 15% + Solidaritätszuschlag + trade tax, depending on the municipal Hebesatz). Distribute those profits and a further ~25% Kapitalertragsteuer (+Soli) applies, pushing the total toward ~48%. Thesaurierung — retaining profits in the company — caps the burden near ~30% but defers the second layer until distribution.
A Gesellschafter-Geschäftsführer salary is deductible but must be arm’s-length (overpayment = verdeckte Gewinnausschüttung). A majority Gesellschafter-Geschäftsführer (>50%) is generally exempt from statutory social security — a planning factor for solo founders. Germany has announced a planned phased reduction of the corporate income tax rate from 15% toward 10% from 2028 — confirm the current status with a Steuerberater.
Why founding abroad rarely helps
The recurring theme: incorporation location ≠ taxation location. Germany taxes the worldwide income of residents and looks through “letterbox” structures.
Estonia e-Residency + OÜ
Appeal: fast 100% online formation and a system that taxes profits only when distributed (CIT 22%; a 2026 hike to 24% was reversed in December 2025). Trap: e-Residency is not tax residency. Run the OÜ from Hamburg and Germany can treat its place of effective management (Geschäftsleitungs-Betriebsstätte) as being in Germany — so profits are taxed in Germany regardless of where customers are. Banking is hard for non-residents; monthly accounting is mandatory; CRS removes anonymity.
US LLC (Delaware / Wyoming)
Appeal: cheap, fast, no US tax absent US-effectively-connected income. Trap: from the German side, often the worst of both worlds. Managing it from Germany creates a German Betriebsstätte, so profits are taxable in Germany. A registered-agent address is not substance. German commentary is blunt: a US LLC is “not tax-free” for someone living in Germany.
EU freedom of establishment does permit using another member state’s company and even exploiting a rate differential — but only with real substance there (genuine office, management, staff). Without substance, place-of-effective-management and CFC rules apply.
The EU regulatory layer
EU AI Act (Reg. (EU) 2024/1689) is risk-based and phased. Prohibited practices and AI-literacy duties since Feb 2025; GPAI obligations since Aug 2025; high-risk obligations from 2 Aug 2026 (an “AI Omnibus” simplification reached political agreement 7 May 2026). Fines reach €35M or 7% of global turnover (SMEs get the lower cap). The likely posture for a small AI builder: you are a deployer (using model APIs) with transparency and human-oversight duties. Substantially modify or release a model and you take on heavier provider/GPAI duties. Hiring, credit and biometric uses are high-risk.
GDPR applies in parallel and independently whenever you process personal data — DPIAs, lawful basis, data-subject rights. AI Act and GDPR are additive, not alternatives. Chatbot-disclosure and AI-generated-content labeling obligations phase in around Aug–Dec 2026.
The staged version of all this — what to confirm with a Steuerberater, when to default to a GmbH, and when to escalate to counsel — is in What to actually do.