Introduction
Comdirect and Flatex are two leading online brokerage platforms in Germany that cater to distinct investor profiles. Comdirect, part of the Commerzbank Group, offers a full-service banking and investment experience, combining everyday banking, lending, and trading under one umbrella. Flatex, on the other hand, was established to deliver a cost-efficient, digital-only brokerage with transparent, flat fees and broad access to global markets. Investors seeking a comprehensive financial partner will find Comdirect appealing, while those focused on low-cost securities trading may prefer Flatex. This article provides an in-depth comparison across ten critical dimensions to help you decide which platform aligns best with your needs.
Company Background
Comdirect launched in 1994 as one of Germany’s first direct banks. Over the years, it has evolved into a hybrid institution under the Commerzbank umbrella, offering both digital services and branch access through Commerzbank locations. Its longevity and integration with a major bank instill confidence in clients who value stability and breadth of service.
Flatex emerged in 2019 from the merger of FinTech Group Bank and the discount broker Flatex AG. Built on a lean, digital-first model, it focuses exclusively on securities trading. By partnering with custodians and exchanges rather than building its own banking operations, Flatex keeps costs low and passes savings on to clients through minimal fees.
Account Opening and Onboarding
Opening an account with Comdirect involves a multi-step process that balances digital convenience with regulatory requirements. Prospective clients complete an online application, verify identity through a video call or via PostIdent at Deutsche Post, and receive Girocard and Visa debit or credit cards by mail. Account activation typically takes one to two weeks, after which users can access both banking and trading functions in a unified portal.
Flatex streamlines onboarding with a fully digital process. New users register online, complete a brief risk questionnaire, and submit identification documents via video ID or PostIdent. Once verified—often within three business days—accounts are instantly active for trading. No minimum deposit is required, and clients fund their accounts via SEPA transfer, making Flatex accessible to investors of all sizes.
Fee Structure
Comdirect’s fee model reflects its full-service positioning. Trading commissions start at a flat fee per order on the leading Xetra exchange, with higher rates for regional and international venues. Custody fees apply as a small percentage of assets under management, and certain ETF savings plans incur modest transaction fees unless they are part of partner promotions. Monthly account fees for current accounts can be waived by meeting deposit or trading thresholds.
Flatex adopts a transparent, flat-fee approach designed to minimize costs for active traders. Equity and ETF trades incur a single low fee regardless of order size, while international trades carry a slightly higher flat rate. Flatex eliminated custody fees entirely, allowing clients to hold unlimited positions without ongoing charges. ETF savings plans cost a small fixed amount per execution, with many popular ETFs available at zero fee under rotating offers.
Product Offerings
Comdirect serves as a one-stop financial platform, combining everyday banking and comprehensive trading. Clients can choose from checking accounts, savings products, consumer loans, mortgages, and credit cards. On the investment side, Comdirect offers stocks, ETFs, mutual funds, bonds, derivatives, structured products, and a digital robo-advisor. Advisory services—both digital guides and phone consultations—help clients navigate complex investment decisions.
Flatex focuses squarely on securities. Its product menu includes equities, ETFs, mutual funds, corporate and government bonds, futures, and options. While it does not offer lending, mortgages, or insurance, Flatex integrates cash management accounts for clients to park cash between trades. An optional savings plan feature automates periodic ETF or fund purchases, appealing to those building long-term investment strategies.
Trading Platforms and Tools
Comdirect delivers multiple platforms to suit varying experience levels. Its web portal integrates banking and trading functions, complete with watchlists, market news, and basic charting. PC Trade, a desktop application, offers advanced charting with technical indicators, real-time market depth, and conditional order types such as stop-loss and trailing stops. Mobile apps provide on-the-go access to accounts, notifications, and trade placement, although advanced analytics remain on desktop.
Flatex emphasizes a clean, web-based trading interface optimized for efficiency. Users can place market, limit, and stop orders with minimal clicks, access real-time price updates, and customize watchlists. Advanced charting is available through integrated chart modules supporting technical analysis. While there is no dedicated native mobile app, the responsive mobile web interface allows full trading functionality from smartphones and tablets. An API permits automated trading and integration with third-party applications.
Market Access and Execution Quality
Comdirect routes German equity trades through Xetra by default, ensuring reliable liquidity and competitive spreads. Regional exchange access covers major German and European markets, with international trades executed via broker partners. Execution quality benefits from Commerzbank’s institutional relationships, and professional clients can access direct market access via the desktop platform for optimal speed and transparency.
Flatex connects directly to Xetra, EUREX, and leading global exchanges, offering professional-grade execution to retail clients. Its flat-fee structure encourages frequent trading without escalating costs. International orders execute through local exchange memberships, ensuring solid liquidity and transparent pricing. Slippage and latency are kept to a minimum, matching or exceeding that of many traditional brokers.
Security and Regulation
Both brokers operate under strict European financial regulations. Comdirect is supervised by BaFin and the Deutsche Bundesbank, with client deposits protected up to €100,000 under Germany’s statutory deposit insurance and additional institutional safeguards. Security measures include two-factor authentication via chipTAN or pushTAN, biometric logins for mobile, and encrypted data transmission.
Flatex Bank AG is likewise regulated by BaFin and Deutsche Bundesbank. Client funds and securities are held in segregated accounts at partner custodians and protected up to €100,000 per investor. Flatex enforces two-factor authentication, device management controls, and advanced encryption protocols, supplemented by regular security audits and compliance reviews.
Educational Resources
Comdirect provides an extensive Financial Academy featuring articles, videos, and webinars on investing, market analysis, and personal finance. Research tools include daily market summaries, expert commentaries, and economic outlook reports. A demo trading environment allows clients to practice strategies in a risk-free setting.
Flatex offers a robust Help Center with comprehensive guides on platform use, fee explanations, and market basics. An integrated news feed delivers real-time market headlines, while periodic webinars with market experts delve into specific strategies. Though less expansive than Comdirect’s offerings, Flatex’s resources are tightly focused on practical trading knowledge.
Customer Support
Comdirect supports clients via phone, secure messaging within its online portal, and email. Extended weekday hours and limited weekend availability cater to retail and professional clients alike. In-person assistance is available at Commerzbank branches for complex banking and advisory needs.
Flatex provides email and ticket-based support during regular business hours, with response times typically within one business day. Live chat is occasionally offered for urgent inquiries, but there is no phone or branch service. A detailed online knowledge base empowers clients to resolve common issues independently.
Mobile Experience
Comdirect’s mobile app consolidates banking and trading functions, featuring real-time balance updates, push notifications, order placement, and basic charting. Users can integrate biometric authentication and manage card settings from the app, though advanced trading features remain on desktop.
Flatex’s mobile web interface replicates its desktop functionality, allowing order execution, portfolio monitoring, and savings plan management from any device. Price alerts and notifications help traders stay informed, while the responsive design ensures usability on various screen sizes.
Ideal Investor Profiles
Comdirect is best suited for:
- Investors seeking a fully integrated banking and brokerage solution
- Traders requiring professional-grade desktop tools and multi-asset access
- Clients valuing the stability and oversight of a major banking institution
- Long-term investors benefiting from robo-advisor portfolios and savings plans
Flatex is ideal for:
- Cost-conscious investors executing frequent trades or savings plans
- Digital-first users who prefer a lean, web-based trading experience
- Active traders requiring transparent, flat-fee access to global markets
- Small investors with minimal capital seeking no custody fees and no account maintenance charges
Conclusion
Comdirect and Flatex each excel in serving distinct segments of the investment community. Comdirect’s hybrid model offers the security, breadth, and advisory support of a traditional bank combined with modern digital trading platforms, making it a comprehensive choice for those seeking an all-in-one financial partner. Flatex’s streamlined, cost-efficient approach provides barrier-free access to global markets without custody fees or high commissions, catering to active and price-sensitive traders. By evaluating your trading frequency, desired services, and cost priorities, you can select the brokerage that best aligns with your financial goals and investing style.


