Robo-advisors vs. online brokers

Key takeaways
- The management fee percentage advertised by a platform doesn't reflect the total cost of ownership (TCO) for a Belgian resident investor.
- Delegating local tax and administrative obligations is one of the main added values of an automated wealth management service.
- Opening accounts with non-resident providers requires additional administrative work.
- The inability to transfer a portfolio in-kind to another institution creates a risk of forced liquidation, which can trigger unexpected fees.
Which costs do Belgian robo-advisors leave out of their brochures?
The financial industry has long trained retail investors to focus on a single metric: the management expense ratio. This obsession with the lowest percentage is understandable, as fees compound negatively over time. However, evaluating an automated investment solution solely through this lens is overly simplistic.
The total cost of ownership
In personal finance, the concept of TCO (Total Cost of Ownership) incorporates the time spent on administration, the risk of making mistakes, and structural missed earnings. A traditional online broker, where investors select their own securities (DIY investing), does not offer the same service. A robo-advisor charges for comprehensive financial engineering.
Local players justify this pricing through the services they provide. Easyvest, for instance, applies a tiered management fee structure based on the amount invested. This approach is still often cheaper than the fees typically charged by traditional Belgian banks. Therefore, the real question for investors is no longer finding the cheapest fraction of a percent, but rather verifying whether the platform actually automates local costs.
Do cross-border providers manage the TOB?
The European market for investment apps is packed with competitive offers. Revolut's robo-advisor charges a 0.75% annual management fee with a minimum investment of just €100. Compared to Belgian providers charging up to 1%, the math seems straightforward. But this is exactly where the impact of the overall cost catches the inattentive investor off guard.
The administrative burden
Aggressive pricing often conceals a shift in responsibility. Revolut, for example, does not handle taxes for its clients.
The value of a full-service approach
Conversely, the local ecosystem has built its offerings around peace of mind. Domestic providers handle all the administrative legwork. Similarly, a player like Keyprivate directly manages the payment of mandatory taxes and fees for its clients, thereby justifying its pricing model.
What are the invisible costs of an automated portfolio?
Beyond local taxes, two phenomena silently chip away at the performance of an automated portfolio. They won't appear on any annual fee statement, yet they systematically reduce your compounded returns.
The drag of idle cash
The first invisible cost is cash drag. To deduct their fees without having to constantly sell fractional shares, some wealth managers keep a pocket of liquidity on hand. They intentionally leave uninvested cash in the client's account to cover their costs. Over a twenty-year horizon in a bull market, this non-yielding fraction of the portfolio represents a mathematical shortfall in potential earnings.
The dead end of closed architecture
The second major risk involves asset portability. A savvy investor should always plan an exit strategy. However, extreme cost optimization pushes some platforms to use highly specific products. Roughly 80% of the ETFs used in Revolut's robo-advisor portfolios come from a single provider, Amundi, and more importantly, the portfolio cannot be transferred to another broker.
This inability to make an in-kind transfer means that a client wishing to change managers will be forced to sell everything. This forced liquidation immediately realizes potential costs and triggers the TOB (stock exchange tax) on the sales, creating an unexpected expense upon exit.
Comparison: beyond management fees
To objectively weigh these differences in service, it's essential to look past the marketing brochures. The table below summarizes the landscape of the main robo-advisors accessible in Belgium, incorporating market data.
| Provider | Minimum investment | Annual fee range |
|---|---|---|
| Revolut | €100 | 0.75% |
| Curvo | €500 | 0.6% to 1% |
| Indexa Capital | €2,000 | 0.4% to 0.85% |
| Easyvest | €5,000 | Tiered |
| Keyprivate | €15,000 | 0.91% |
The choice will therefore depend on your preferred balance between the required starting capital and the expected level of delegation.
What happens when a robo-advisor shuts down?
The closure of a platform is not a theoretical event: it has already happened several times in the Belgian market, imposing major logistical and financial constraints on investors.
In-kind transfers: a soft landing
When a provider is part of a large banking group with comprehensive brokerage infrastructure, the transition can be smoothly managed. KBC/Bolero's Matti service was shut down in April 2024; the ETFs held by clients were seamlessly transferred to their Bolero accounts. Although clients lost the automated management feature, they kept their assets without triggering a forced sale, thereby avoiding unnecessary friction.
Forced liquidation
The scenario is far more damaging when the platform does not offer portability. The robo-advisor Birdee (backed by BNP Paribas) was shut down on June 30, 2025: all investments were liquidated, and the cash was returned to clients' linked bank accounts.
This automatic liquidation strips you of any control over the timing of your withdrawal. It locks in potential capital losses at the worst possible moment or triggers the Reynders tax. This underscores the importance of checking transferability clauses before opening an account.
FAQ: The essentials on Belgian robo-advisor costs
How can I optimize costs when choosing a platform?
The best approach is to ensure that the provider facilitates the transfer of your portfolio if you ever decide to switch brokers. Careful planning helps you avoid unexpected exit fees.Is a traditional online broker better for the very long term?
Mathematically, avoiding annual management fees by buying ETFs yourself through a broker will often be cheaper over a twenty-year period. However, this approach requires ironclad discipline to rebalance the portfolio. It's a mental burden that many savers ultimately abandon.Conclusion
The disappearance of services like Matti or Birdee illustrates the importance of choosing the right partner. The race for the lowest fee quickly reveals its practical limits. A robo-advisor's true value is measured by its ability to absorb local complexities. Investors are buying a comprehensive service to protect themselves from operational shocks and tax-related friction. At what portfolio size does the value of delegating these tasks ultimately outweigh the difference in management fees?
This article is published for informational purposes only and does not constitute investment advice. Consult a certified financial advisor before making any investment decisions.


