What is a broker and how do you choose one?

A broker is a little like an estate agent.

When a home is sold, an estate agent helps bring the buyer and seller together and guides the transaction. A broker plays a similar role in financial markets: the broker receives your buy or sell order and sends it to the market.

Suppose you want to invest €500 in an ETF. You open your broker’s app or website, find the ETF and enter how much you want to buy. That is how you submit a buy order without trading directly on the stock exchange yourself.

Your broker is not the stock exchange. It connects you to the markets where investments are bought and sold.

The stock exchange is the market. A broker gives you access to that market.

Depending on what it offers, a broker may let you buy and sell ETFs, shares and bonds. If you are not quite clear on what an ETF is yet, start with What is an ETF and how does it work?

Bolero, Saxo and DEGIRO are just a few examples. Brokers can differ considerably in their costs, ease of use, investment range and how much Belgian paperwork they handle for you.

One broker may focus on low fees. Another may offer a simpler platform, more support or more detailed information. A third may provide access to a particularly wide range of stock exchanges and financial products.

The amount of Belgian paperwork they handle can differ too. Some brokers take care of certain obligations for you, while others leave more for you to manage yourself.

That is why there is no single broker that is simply best in every respect. Before comparing prices or features, there are also two more fundamental questions to answer.

You use a broker to place buy and sell orders and access your investments. First check exactly which company operates the platform. The FSMA’s Check your provider tool lets you see whether the company has the required authorisation and whether a regulator has published a warning.

Authorisation is a basic requirement, not a guarantee that a broker is right for you or that your investments are risk-free. Also read how your securities and uninvested cash are held, which protections apply and what happens if the company itself runs into financial difficulty.

For investors in Belgium, the next question is practical:

How much of the paperwork does the broker handle for me?

This includes the tax on stock-exchange transactions, or TOB. If a foreign intermediary carries out a taxable transaction for you, you as the Belgian instructing party are in principle liable for the tax unless you can show that it has already been paid. A foreign intermediary may handle the TOB for you. If it does not, filing and payment may fall to you as the Belgian instructing party.

Check whether your securities account qualifies as a foreign account as well. Belgian residents who hold such an account, either individually or jointly, must report it to the Central Point of Contact at the National Bank of Belgium. They must also declare the existence of the account in their annual Belgian tax return.

A foreign broker is therefore not automatically a poor choice. It does mean that a low price never tells the whole story.

Once reliability and paperwork are clear, you can compare brokers using three questions:

• What does it cost?
• How easy is it to use?
• Can I buy what I need through it?

Costs

Costs matter because every euro paid in fees is a euro that is no longer invested.

Look beyond one eye-catching price. A broker may charge transaction fees when you buy or sell. There may also be fees for certain stock exchanges, currency conversions, account services or other features.

For someone investing a relatively small amount each month, a fixed fee per purchase can have a relatively large impact. Someone investing larger amounts only a few times a year may reach a different conclusion.

Ease of use

You may use a broker’s platform for many years.

Can you easily see what you own? Do you understand what happens when you place an order? Are the costs clearly displayed? Can you find documents easily? And is support available when something is not clear?

That may sound less important than saving a few euros in transaction fees, but simplicity has value too. A cheap broker that leaves you uncertain each time is not automatically a good choice.

Investment range

Finally, the broker must give you access to what you want to buy. Not every broker offers the same ETFs, stock exchanges or other investments.

Someone taking a simple, broadly diversified approach may only need a relatively limited range. An experienced investor with specific requirements may need access to more markets or products.

A wider range is not automatically better. For a beginner, an endless catalogue can even create more noise. What matters is that the range supports the chosen approach.

One broker may be exceptionally cheap but offer less support. A very user-friendly platform may cost a little more. A broker with an enormous range may offer possibilities that a beginning investor does not need.

There is rarely one winner across all three considerations.

You do not need to search for the theoretically perfect broker. The aim is to find a reliable broker whose paperwork and costs you understand, whose platform feels practical to use and that gives you access to the investments relevant to your approach.

It is easy to spend a great deal of time comparing prices, apps and features. But ultimately, a broker is infrastructure.

It gives you access to the market. It does not decide why you invest, how much risk suits you or how you will react during a difficult period in the market. A slightly cheaper broker does not suddenly improve a poorly considered investment strategy.

So start with the foundations:

Is the broker reliable? Do I understand the paperwork? Are the costs reasonable and clear? Can I buy what I need? And does the platform feel practical enough to use for years?

If those foundations are in place, the choice does not need to be perfect.

A broker is the route to your investments, not the destination.