How to Choose a Broker: A 5-Point Checklist With Costs

Capital at risk. A broker is a place to hold investments that can fall in value. Choosing a well-regulated one protects you against the broker failing; it protects you against nothing else. This is general information, not personalised advice, and no broker is recommended below.

To choose a broker, check five things in this order: that the firm is on your regulator's public register and which compensation scheme covers you; what one year of your pattern of trades would cost under its full fee schedule, including currency conversion; that it offers the funds, fractional units and tax-sheltered accounts you need; how your assets are held if it fails; and how easily you can withdraw money and reach a person. A broker that passes all five is good enough, and the worked example below shows why the second check matters more than the headline "zero commission".

It is worth the twenty minutes now because a broker is one of the few investing decisions that is tedious to undo: transferring an account later can mean forms, delays, occasional forced sales and sometimes an exit fee per holding.

This is a checklist, not a ranking. It is deliberately free of brand recommendations, because the right answer depends on where you live, what you want to buy and which currency you earn in, and a list written for one country is actively misleading in another. If you want our view on specific platforms, that is a separate page: best stock brokers.

1. Regulation, and what protection really means

Check the broker is authorised by the financial regulator of the country whose rules it claims to operate under, and check it on the regulator's own public register rather than on the broker's website. Any firm can print a licence number. Only the register can confirm it.

Then understand what the associated compensation scheme does and does not do, because this is the most widely misunderstood point in retail investing. Two examples, quoted from the schemes themselves:

In the United States, SIPC states that "The limit of SIPC protection is $500,000, which includes a $250,000 limit for cash" — and, crucially, that it "does not protect against the decline in value of your securities" (sipc.org, re-checked 16 October 2026).

In the United Kingdom, the FSCS covers investment claims "up to £85,000 per eligible person, per firm" for firms that failed after 1 April 2019, and states that it cannot accept claims for poor investment performance (fscs.org.uk, re-checked 16 October 2026). That is a different, lower limit from the £120,000 that now applies to deposits at UK banks, so do not assume the deposit figure covers a brokerage account.

The pattern is the same everywhere the schemes exist: they cover the custody function, meaning assets going missing when a firm fails. They never cover your investments falling in value. If you are in neither of those jurisdictions, the same question applies — find your own regulator's scheme, find its limit, and find its exclusions. We go deeper into the mechanics in what investor protection actually covers.

2. The cost of your behaviour, not the headline price

"Commission-free" is a description of one line on a price list. The bill you actually pay depends on what you do.

Read the broker's full fee schedule, which is a separate document from the marketing page, and price your own pattern against it. A broker that is cheapest for a frequent trader can be among the most expensive for someone making twelve purchases a year, and the reverse is just as common.

The one to look hardest at is currency conversion, because it is charged as a spread rather than as a line item, which means it does not appear on your statement as a fee at all. If you earn in one currency and buy funds priced in another, you may be paying it on every contribution for thirty years.

Worked example: one investor, two price lists

Take someone who invests 300 a month into one fund priced in a foreign currency and builds up a balance of roughly 20,000 over the years. Two hypothetical brokers, with round numbers chosen to show the mechanics rather than any real firm's prices:

The broker advertising "zero commission" costs this investor roughly three times as much, because the costs that matter for a monthly buyer of a foreign-currency fund are the spread and the custody percentage. Change the pattern — say, one large purchase a year in your home currency and a small balance — and Broker A can come out cheaper. That is the whole argument for pricing your own behaviour rather than reading the headline.

3. What it actually holds

Obvious, and still the most common reason people move within a year of opening an account.

4. How your assets are actually held

This one gets skipped and it is the most consequential item on the page.

Ask whether client assets are held in segregated accounts, separate from the firm's own money, and whether your holdings are registered in your own name or pooled in a nominee structure. Pooled nominee holding is entirely normal and is how most retail brokerage works worldwide; the point is not that it is bad but that you should know which model you are in, because it determines what happens if the firm fails and what the compensation scheme is actually compensating for.

Ask, too, whether the broker lends out client securities, and whether you can opt out. Securities lending is common, usually collateralised and usually disclosed — and it is a risk you are carrying whether or not anybody explained it to you.

5. Getting money out, and getting a person

Test the withdrawal path before you need it. Some platforms make deposits instant and withdrawals a multi-day process with identity checks that only begin when you first try to leave.

Then find the support channel. Not the chatbot — the route to a person. You will need it once, and it will be at the worst moment: a transfer that vanished mid-flight, a corporate action you do not understand, a tax document with the wrong number on it. Search for recent complaints about the transfer-out process specifically, because that is where platforms are least incentivised to perform well.

Red flags that end the conversation

Any single one of these is enough. There are too many well-regulated alternatives worldwide to spend time on a firm that trips any of them.

Is all this over-thinking it?

There is a real case that it is. Among mainstream regulated brokers in most developed markets the differences are modest, the compensation schemes are broadly comparable in effect, and the money you lose by spending four months choosing is larger than the money you save by choosing correctly.

That argument is mostly right, and it is the reason this article is a checklist rather than a comparison table with a winner. Working through the questions below should take one evening. If you find yourself in week three, you have stopped choosing a broker and started avoiding investing, which is the more expensive of the two problems — and the reasons for that are in the psychology of investing.

Where the argument fails is at the edges, and the edges are where people actually get hurt: cross-border investors paying invisible FX spreads, small regular contributors paying flat per-trade fees, and anyone who signed up to an unregulated firm because the app looked good.

Seven questions to answer before you open an account

Bottom line

Pick a regulated broker that supports the account type you need, priced sensibly for the way you will actually invest, with fractional units and automatic purchases if you plan to contribute monthly. That is the whole specification. Almost every mainstream provider in a well-regulated market meets it, which is why this is a checklist rather than a shortlist.

Then open the account and fund it. A merely good broker used for twenty years beats a perfect broker you are still comparing — and once it is open, the decisions that matter are how much you contribute and what you hold, neither of which the broker chooses for you.

Frequently asked questions

How do I know if a broker is regulated?

Search for the firm on your financial regulator's own public register, not on the broker's website, and check that the registered name and address match the company you are signing up with. A licence number printed on a website proves nothing until the register confirms it.

What happens to my investments if my broker goes bust?

If client assets were properly segregated, they should be returned to you. Compensation schemes cover shortfalls up to a limit — in the US, SIPC protects up to $500,000 including $250,000 cash; in the UK, the FSCS covers investment claims up to £85,000 per person per firm. Neither covers a fall in the value of your investments.

Is a commission-free broker really free?

Rarely for everyone. The cost often moves to currency conversion spreads, custody or platform percentages, the rate paid on cash, or exit fees. The worked example above shows a "commission-free" broker costing about three times as much as a flat-fee one for a monthly buyer of a foreign-currency fund.

Can I switch brokers later?

Usually yes, by an account transfer, but it can take weeks, may involve selling holdings the new broker cannot hold, and some firms charge an exit fee per holding. That is why it pays to choose carefully the first time.

About this article

YieldNav is operated by NorwegianSpark SA (org. 834 984 172), founded by Thomas Lovas Lokoy. We are not licensed financial advisers, and nothing here is personalised advice. Read our about page, editorial policy and affiliate disclosure.