Forex Brokers: Regulation, Costs and Risks

Private investors rarely trade currencies on the interbank market. They go through a broker that quotes prices and holds the position, in the EU almost always as a contract for difference (CFD) or a rolling spot contract. This page explains how these providers work, which rules protect retail clients and what a trade actually costs. It does not rank providers. The broker comparison lists fees and regulators of several CFD brokers side by side; the order there is not a recommendation.

What a forex broker does

A broker either takes the other side of a client’s trade itself (market maker) or passes the order on to banks and liquidity providers (often labeled STP or ECN). A market maker earns mainly from the spread and, in some cases, from client losses; a pass-through model earns from spreads and commissions. Both models are legal. What matters for the client is whether conflicts of interest are disclosed and whether prices stay close to the market during fast moves.

Retail forex trading is almost always leveraged. A deposit of 1,000 euros can move a position worth 30,000 euros. That multiplies gains and losses by the same factor.

Rules for retail clients in the EU

Since 2018 the European Securities and Markets Authority (ESMA) has limited CFD trading for retail clients, and national supervisors such as BaFin have made those limits permanent. The main points:

In addition, the broker must close positions once the account equity falls to half of the margin required, losses may not exceed the money in the account (negative balance protection), and bonuses or other trading incentives are banned. Every provider has to show a standardized warning stating the share of its retail accounts that lost money over the past twelve months.

These rules apply to the EU entity of a broker. Many brands also run companies outside the EU that offer far higher leverage without these protections. Which entity a client contracts with is written in the account terms, not in the advertising.

How to check a broker

• License. The company named in the contract should appear in the register of its supervisor: in Germany the BaFin company database, in other EU countries the national register, and for EU-wide activity the ESMA registers.
• Legal entity. A well-known brand name is no proof. The registered company, its address and its license number have to match.
• Investor compensation. Compensation schemes cover client money if a firm fails, not trading losses. In Germany, the scheme for securities firms (EdW) covers 90 % of a claim up to 20,000 euros.
• Execution policy. Serious providers publish how orders are executed, how slippage is handled and what happens at weekends and on public holidays.

What a currency trade costs

• Spread. The gap between buy and sell price. On one standard lot of EUR/USD (100,000 euros), one pip, meaning 0.0001, is worth about 10 US dollars.
• Commission. Some account types charge a fixed fee per lot in exchange for tighter spreads.
• Overnight financing (swap). Positions held past the daily cut-off are charged or credited based on the interest rate difference between the two currencies plus a markup.
• Other fees. Currency conversion, withdrawals and inactivity can add further costs.

For frequent trading, costs matter more than they appear. The study why most traders lose money shows that a strategy trading daily on stock index futures needs a hit rate of 64.1 % at costs of 0.2 % per round trip, while the market itself closed higher on 54.5 % of days.

Why leverage changes the arithmetic

At 30:1 leverage, a price move of about 3.3 % against the position consumes the entire margin. EUR/USD moved by more than that within a few weeks several times in recent years; the history is on the EUR/USD page . The margin close-out at 50 % stops the loss earlier, but it also locks it in. How the level of interest rates drives exchange rates is explained with the ECB policy rate .