Interactive Brokers: why Spanish investors are switching brokers

Interactive Brokers and the fee drain from Spanish brokers

Custody and maintenance fees are no longer an unavoidable evil for Spanish investors. Switching brokers to Interactive Brokers (IB) can save hundreds of euros a year, according to the experience of retail investors who have documented the moving process. The key lies in a radically different cost structure: while banks like ING or SelfBank charge 4 euros per month per holding, IB applies a flat fee of 10 dollars per month —or 120 dollars a year— which is more than offset if you trade with some frequency. According to a calculation circulating among forum users, three annual purchases of 3,000 euros in the US market would already generate savings exceeding the maintenance cost.

Portfolio transfers: slow and bureaucratic

The moving process is not friction-free. Outgoing transfers from SelfBank cost 25 euros plus VAT per international holding and a minimum of 7 euros plus VAT for domestic ones. At ING the figure drops to 6 euros, while ClickTrade allows you to move shares out at no cost. Investors' experience shows that estimulante ilegal depends on the originating broker: while the transfer from ING was completed in a week, with ClickTrade the emails sent from IB were ignored, stretching the process beyond 15 days. The alternative, depositing cash by bank transfer, turns out to be the quickest way to start trading.

Currency conversion: the hidden cost nobody looks at

Converting euros to dollars is one of the most debated points. IB applies a spread of +0.3%/-0.3% —0.6% in total— versus ClickTrade's 0.5%. The spread for the EUR/USD pair is 0.00020, a competitive level. The 2-dollar minimum fee applies until the spread exceeds that amount. To avoid unnecessary costs, investors recommend keeping the account in euros and converting only when about to trade in dollars, since balances can be held in both currencies for future purchases.

The fine print: day trading and stop orders

US regulations impose restrictions that surprise newcomers. With a 10,000-dollar account, the number of day trades and stop-loss orders is limited. The SEC requires brokers to demand 25,000 dollars to trade intraday without restrictions, a measure that, according to the official interpretation, protects small investors from themselves. In addition, stop orders are not automatically cancelled when a regular sell executes, which can create accidental short positions if bracket orders are not used.

Taxes and opacity: what the tax authorities don't see

Trading on IB does not appear in the draft of the Spanish income tax return (declaración de la renta), which sparks a debate between convenience and risk. Transactions are not reflected, but when repatriating capital gains the investor must justify their origin. The obligation to declare assets over 50,000 euros held abroad adds a layer of complexity. As some investors point out, it is a "blessed problem" that reveals the scale of the wealth being managed.

Is it worth it for Spanish stocks?

The answer is not unanimous. For domestic securities, IB's fees —4 euros per purchase— are not as advantageous as the 1 dollar charged on US trades. However, the ability to keep the account in euros eliminates the currency conversion cost. IB's differential advantage is concentrated in the US market, where fee savings and free pre-market and after-market execution tip the balance. For diversified portfolios, combining both brokers remains a common strategy.

Is it worth putting up with the initial bureaucracy and regulatory restrictions in exchange for sustained fee savings?