
The short version
- Start with the regulator's own register, not the firm's website, and confirm the contact details match to rule out a clone.
- Find out which legal entity you would deal with, how your money is held and which compensation scheme, if any, applies.
- Compare total cost for the way you actually invest, and test how withdrawals and complaints work before committing much money.
Knowing how to choose a broker matters more than picking the right share, because the broker is where your money actually sits. CrimsonTicker does not recommend or rank brokers, and we are not one. What we can give you is a method: ten checks, grouped into four questions, that work on any stockbroker, forex provider or trading app you are considering.
How to choose a broker: is the firm who it says it is?
1. Find it on the regulator's register yourself
Every serious market has a public register of authorised firms: the Financial Conduct Authority's register in the UK, FINRA BrokerCheck and the SEC's databases in the US, ASIC's professional register in Australia, and national regulators across the EU. Search it directly, by typing the regulator's address yourself rather than following a link from the firm. Note the firm's reference number and exactly what it is permitted to do; permission to arrange deals is not the same as permission to hold client money.
2. Rule out a clone
Fraudsters copy the name and reference number of real authorised firms. The register lists the genuine firm's website, phone number and address. If the details you were given differ in any way, even a slightly different domain, treat it as a clone. Many regulators also publish warning lists of known unauthorised firms.
3. Identify the exact legal entity
Large brokers are often groups with companies in several countries. The one you sign up with is named in the account terms and at the foot of the website. A well-known brand can place overseas customers with an offshore subsidiary that follows looser rules, allows higher leverage and offers weaker protection. Always check which entity would hold your account and where it is regulated.

What happens to your money?
4. Client money and asset segregation
Regulated brokers must keep client cash in separate accounts and hold shares in a nominee or custodian structure, apart from the firm's own assets. That separation is what protects you if the broker runs into trouble. The account terms and the firm's disclosure documents should say how and where client assets are held.
5. Compensation coverage
Many countries run a compensation scheme that can pay out, up to a set limit, if an authorised firm fails and client assets are missing. Examples include the Financial Services Compensation Scheme in the UK and the Securities Investor Protection Corporation in the US. Check whether the specific entity is covered, what the current limit is on the scheme's own website, and remember that these schemes do not cover investment losses from falling prices.
6. Products and protections that match your plans
A long-term fund investor needs something different from someone trading currencies. Check that the firm offers the markets you actually intend to use, and look at the protections attached. For retail CFD clients in the UK and EU, leverage is capped, positions are closed at a 50% margin level and accounts cannot go below zero. Welcome bonuses for retail CFD clients are banned in the UK, EU and Australia, so a firm offering one to you is either outside those rules or breaking them.
What will it really cost?
7. Total cost for the way you invest
Headline commissions tell only part of the story. Add spreads, currency conversion, custody or platform fees, inactivity charges, overnight financing and withdrawal fees. The cheapest firm depends on how you use it. Illustration, for $5,000 of US shares bought by someone who funds the account in another currency:
| Illustrative fee structure | 10 purchases of $500 | 2 purchases of $2,500 |
|---|---|---|
| No commission, 0.5% currency conversion | $0 + $25 = $25 | $0 + $25 = $25 |
| $3 per trade, 0.1% currency conversion | $30 + $5 = $35 | $6 + $5 = $11 |
Neither structure is cheaper in general; it depends on trade frequency and size. Our guide to trading fees explained lists every cost to include.
8. How orders are executed
Regulated firms publish an order-execution policy. It tells you whether the firm routes orders to exchanges, fills them from its own book as a market maker, or receives payment from the market makers it sends orders to. Each model has trade-offs; the point is to know which one you are dealing with and that the firm has a duty to seek a good result for you.

How does it behave when things go wrong?
9. Withdrawals
Read the withdrawal terms before depositing: how long they take, what they cost and which accounts money can be returned to. Legitimate firms normally pay out only to an account in your own name. Consider making a small deposit and withdrawal first to test the process. Any firm that demands a "release fee", "tax" or extra deposit before it will return your money is showing the classic sign of fraud.
10. Complaints and disputes
Authorised firms must have a complaints procedure, and many countries offer an independent dispute service, such as the Financial Ombudsman Service in the UK, if a complaint is not resolved. An unregulated firm leaves you with none of this, which is the practical reason why authorisation comes first on this list.
Red flags that end the search immediately
- You were contacted first, by phone, social media or a messaging app, or introduced by an online "mentor".
- Returns are promised or described as guaranteed.
- You are asked to pay in crypto or into a personal bank account.
- The firm is not on the register, or appears only on a regulator's warning list.
- You are pushed to decide quickly, or discouraged from telling family.
Our scam guide explains how these schemes usually unfold, and trading apps compared covers what differs between the apps themselves.
Keep a record of what you checked
It takes perhaps half an hour to run all ten checks properly, and the results are worth writing down. A simple note is enough: the firm's full legal name, its register reference and what it is authorised to do, the entity named in the terms, the compensation scheme that applies, a one-year cost estimate for your own pattern of investing, and the date you checked. If anything changes later, such as a letter moving your account to a different group company or a new fee schedule, you will be able to see exactly what is different.
That note is also useful if something goes wrong. A complaint, or a claim to a compensation scheme, is much easier when you can show which entity you dealt with and what you were told.
A shorter version for long-term investors
If you plan to buy index funds or shares and hold them for years, the priorities shift slightly. Leverage and execution speed matter little; custody, compensation, currency-conversion costs, platform fees and the range of funds available matter a great deal. Checks 1 to 5 and 7 are the essentials, and it is worth checking again every few years, because fee schedules change.
Reader questions
Is a big, well-known brand automatically safe?
Not automatically. A brand may run several companies in different countries, and the one you deal with may be offshore with weaker protection. Clone firms also copy famous names. Check the exact entity on the regulator's register.
Can I use a broker regulated in another country?
Sometimes, but you usually lose the protections of your home regulator, including local compensation and complaint services. Check whether the firm is permitted to serve residents of your country.
Should I choose the broker with the lowest commission?
Only after adding every other cost. Currency conversion, spreads, platform fees and financing often cost more than the commission, depending on how often and how much you trade.
Sources
- UK Financial Conduct Authority, Financial Services Register and warning list
- FINRA BrokerCheck
- Australian Securities and Investments Commission, professional registers
- European Securities and Markets Authority, CFD product intervention measures