Interactive Brokers
Global institutional-grade broker with access to 150+ markets. The gold standard for corporate investors and active traders.
Features
- ✓150+ global markets
- ✓Stocks, options, futures, bonds, ETFs, crypto
- ✓No automatic tax withholding (Firmendepot)
- ✓No minimum deposit
- ✓Margin lending
- ✓API access for algorithmic trading
- ✓Advanced order types
- ✓Real-time market data
Pros
- Lowest commissions in the industry
- No automatic tax withholding — enables Steuerstundungseffekt
- Access to 150+ markets globally
- No minimum deposit for Geschaeftsdepot
- Institutional-grade platform and tools
Cons
- Complex user interface — steep learning curve
- Support primarily in English
- Not ideal for beginners or hands-off investors
- ~EUR 10/year inactive account fee
Best For
About Interactive Brokers
Interactive Brokers (IBKR) is the global gold standard for institutional and sophisticated corporate investors. The Geschaeftsdepot offering has no minimum deposit requirement, making it accessible to even small GmbHs. The platform provides access to 150+ markets across stocks, options, futures, bonds, ETFs, and cryptocurrencies. Annual account fees are low (around EUR 10/year for inactive accounts), and commissions are among the lowest in the industry. IBKR does NOT automatically withhold German taxes on corporate accounts, giving GmbHs access to the critical Steuerstundungseffekt (tax deferral advantage). The platform is highly sophisticated, offering real-time market data, advanced order types, margin lending, options strategies, and API access for algorithmic traders. Documentation is available in German, though technical support is primarily English-language.
Why IBKR for Corporate Investors
Interactive Brokers is the preferred choice for GmbH investors who prioritize tax efficiency and global market access. Unlike German banks that automatically withhold 25% Abgeltungssteuer, IBKR leaves tax calculation to the company, enabling the Steuerstundungseffekt — gains remain fully invested and compound without premature tax deductions.
Commissions & Fees
- US stocks: $0.01/share (minimum $1 per order)
- European stocks: 0.1% of trade value
- Options: $0.65 per contract
- Account maintenance: ~EUR 10/year (inactive accounts only)
- No minimum deposit for Geschaeftsdepot
Requirements for Opening
- LEI (Legal Entity Identifier) required
- Corporate documents (Handelsregisterauszug, Gesellschaftervertrag)
- Proof of business address
- Beneficial ownership documentation
- Setup timeline: 2-4 weeks
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