Commission de Surveillance du Secteur Financier (CSSF)
Tier 2Luxembourg's EU financial regulator.
Is CSSF regulation safe? Quick verdict
Short answer: yes, CSSF is a recognised, credible regulator — but it sits a notch below a tier-one authority like the FCA or BaFin. Commission de Surveillance du Secteur Financier (Luxembourg (EU)) enforces licensing and conduct standards, yet it applies lighter rules and a smaller safety net. A CSSF-regulated broker is legitimate; just treat it as solid rather than the strongest tier of protection.
How to check a broker's CSSF licence
The single best defence against a fake CSSF broker is a 60-second register check. Do this before you deposit:
- 1Find the broker's licence/registration number — it is usually in the website footer or "Legal" / "About" page, alongside the legal entity name.
- 2Open the official CSSF register at https://searchentities.apps.cssf.lu/ and search that number (or the company name) directly — never click a "regulated by CSSF" badge on the broker's own site.
- 3Confirm the name, website and status on the register match the broker you are about to fund. If the entity is flagged, expired, or the domain doesn't match, walk away.
4 protections an CSSF licence gives retail traders
Here is what CSSF regulation actually means for your money — the parts that matter when something goes wrong:
Segregated client funds
CSSF-licensed brokers must keep client money in segregated accounts at reputable banks, separate from the firm's own operating capital. If the broker fails, your funds are ring-fenced and should not be used to pay the company's creditors.
Compensation scheme (ICF)
If a CSSF broker becomes insolvent, eligible clients are covered by ICF. This is a statutory safety net — note it is smaller than the UK FSCS limit of £85,000, a key difference between EU regulators and the FCA. It covers firm failure, not trading losses.
Negative balance protection
Retail clients are protected against owing more than they deposit: if a violent market move pushes an account negative, the broker absorbs the shortfall. You cannot be chased for a debt beyond your balance.
Leverage capped at 1:30
CSSF caps retail leverage at 1:30 on major currency pairs (and lower on volatile assets such as minor pairs, indices and crypto). This is a deliberate brake on risk. It is also a useful tell: any "CSSF-regulated" broker advertising 1:500 leverage to retail EU clients is lying about its licence.
CSSF-regulated brokers we track
Hover a broker to see the share of retail accounts that lose money. CFDs are high-risk.
Typical CSSF scams to watch for
An CSSF badge is exactly what fraudsters imitate. These are the patterns we see most often:
⚠The clone-broker trick
Fraudsters copy the real licence number and legal name of a clean CSSF broker, then build a near-identical website on a slightly different domain. The licence "checks out" — but it belongs to the legitimate firm, not the clone. Always confirm the exact website/domain on the CSSF register, not just the number.
⚠The bonus trap
Deposit and trading bonuses to retail clients are banned under ESMA/MiFID conduct rules. If a broker claims to be CSSF-regulated while advertising a "100% deposit bonus" or guaranteed returns, it is almost certainly not genuinely regulated by CSSF — or is steering you to an unregulated offshore entity.
⚠Registered address, but no real licence
Many offshore brokers use a mailbox address in Luxembourg (EU) to look "European" without holding a real CSSF licence — or they hold a licence for a different, unregulated activity. Being based in Luxembourg (EU) is not the same as being authorised by CSSF. Check that the specific entity and activity are licensed.
Verdict: should you trust an CSSF broker?
A genuine CSSF-licensed broker offers solid protection — including ICF. The single most important step is to verify the licence number yourself on the official register before you deposit a cent.
Below are the 1 CSSF-regulated brokers we currently track. If you are unsure whether your broker really plays by the rules, read our reviews or compare verified, safe alternatives.
Frequently asked questions
Is CSSF regulation safe?+
Yes — a CSSF licence is a recognised, credible sign of safety, provided you confirm the broker genuinely holds it. Client funds are segregated and covered by ICF if the firm fails.
How do I check a broker's CSSF licence?+
Find the broker's licence number on its website, then search it on the official CSSF register (https://searchentities.apps.cssf.lu/). Confirm the company name, website and "authorised" status all match. Never rely on a badge or a link supplied by the broker itself.
What happens if a CSSF broker goes bankrupt?+
Client money should be segregated and returned to you. If funds are missing, eligible clients are covered by ICF. This protects you against firm failure — it does not cover money lost through your own trading.
Why is leverage limited to 1:30?+
CSSF caps retail leverage at 1:30 on major pairs to stop small accounts being wiped out by normal market moves. It is a protection, not a restriction to work around — and any "CSSF" broker offering far higher leverage to retail clients is misrepresenting its licence.