If you compare two forex brokers and one offers 30:1 leverage while the other advertises 500:1, that difference is usually not a marketing choice — it is regulation. Since 2018, most brokers serving retail clients in the EU, UK and Australia have been legally capped at a maximum of 30:1 on major currency pairs, with tighter limits for more volatile products. Understanding where these caps come from, and what they do and do not protect you from, is one of the most useful things a retail trader can learn before opening an account.

Why leverage caps exist

Regulators did not introduce leverage limits out of caution alone — they followed evidence. Before the caps, retail CFD providers commonly offered retail clients leverage of 200:1 to 500:1 or more. Reviews by the European Securities and Markets Authority (ESMA), the UK Financial Conduct Authority (FCA) and the Australian Securities and Investments Commission (ASIC) all found that a large majority of retail clients lose money trading CFDs, and that higher leverage amplified both the speed and the size of those losses.

In 2018, ESMA used its product intervention powers under MiFIR to restrict the marketing, distribution and sale of CFDs to retail clients across the EU. The intervention included leverage limits, a margin close-out rule, negative balance protection, a ban on trading incentives, and a standardized risk warning [1]. The FCA then made equivalent rules permanent in the UK from 1 August 2019 [2], and ASIC imposed its own product intervention order on CFDs issued to Australian retail clients from 29 March 2021 [3].

One important scope point: these caps apply to retail clients. Traders who qualify as professional clients under the applicable tests can access higher leverage. That classification is a legal status with its own trade-offs, not just a checkbox.

The tiered limits: from 30:1 down to 2:1

The caps are not a single number. They scale with how volatile the underlying asset is. Under the ESMA measures — which the FCA and ASIC regimes mirror closely — the maximum initial leverage for a retail client is [1]:

• 30:1 for major currency pairs (for example EUR/USD, GBP/USD, USD/JPY)

• 20:1 for non-major currency pairs, gold and major equity indices

• 10:1 for commodities other than gold, and non-major equity indices

• 5:1 for individual equities and other reference values

• 2:1 for cryptocurrencies

In margin terms, the cap is really a minimum margin requirement. A 30:1 cap means at least 1/30 (about 3.33%) of the position must be posted as margin; 2:1 means at least half. A EUR/USD position of $20,000 needs at least about $667 of margin at 30:1, while the same notional in a cryptocurrency CFD needs at least $10,000 at 2:1 (illustrative figures).

The rules that ship with the caps

Leverage limits were only one part of the intervention. The same measures require CFD providers serving retail clients to:

• Close out positions at 50% margin. When the funds in your CFD account fall to 50% of the total margin needed for your open positions, the provider must close one or more of your positions. This standardized margin close-out rule limits how far an account can run into negative territory before the broker intervenes [1][2].

• Provide negative balance protection. Retail clients cannot lose more money than is in their CFD account; the provider must guarantee this limit [1][2].

• Ban incentives. Monetary and non-monetary inducements to trade CFDs — bonuses, gifts, and similar offers — are prohibited [1][2].

• Display a standardized risk warning, including the percentage of the provider's retail accounts that lose money [1].

These protections work together: the cap slows how fast a position can accumulate losses, the close-out rule limits how far they accumulate, and negative balance protection provides a hard floor.

Who sets the rules where

The regulatory map matters, because the same broker group may operate several entities under different licenses.

• EU — ESMA then national regulators. ESMA's own intervention powers are temporary (measures cannot exceed three months at a time, though they can be renewed). The intention was always for national competent authorities to adopt permanent measures, which they did — so today the restrictions in each EU member state are enforced by the national regulator under national law [4]. ESMA remains active on scope questions: in February 2026 it reminded firms that newly offered products, including some perpetual futures, fall within the CFD measures — including leverage limits, margin close-out, negative balance protection and the incentive ban — where they meet the CFD definition [5].

• UK — FCA, permanent since 2019. After Brexit, the UK regime stands on its own. The FCA made its CFD restrictions permanent in PS19/18, applying from 1 August 2019 for CFDs, and extended the scope to CFD-like options so firms cannot sidestep the rules with close substitutes [2].

• Australia — ASIC, product intervention order. ASIC's CFD order took effect on 29 March 2021 and was extended in 2022 for a further five years, to 23 May 2027 [3]. Its limits (30:1 down to 2:1), margin close-out, negative balance protection and inducement prohibitions closely match the EU and UK regimes.

For you as a trader, the practical consequence is: check which entity of a broker group your account would sit under. A group may offer 30:1 through its EU or UK entity and far higher leverage through an offshore entity, because that offshore entity is outside the scope of these measures.

Professional clients: the opt-up and its trade-offs

All three regimes allow well-qualified clients to be reclassified as professional clients, which removes the caps. Under the ESMA/FCA framework, a retail client can typically opt up by meeting at least two of three qualitative and quantitative tests — for example, significant trading frequency, a large portfolio (measured in cash and financial instruments, excluding the primary residence), and relevant professional work experience in the financial sector [1][2].

The trade-off is explicit: professional clients give up some of the retail protections, including negative balance protection and the standardized margin close-out at 50%. The higher leverage is real, and so is the removed safety net. Regulators have repeatedly warned firms to assess clients properly when reclassifying them.

What the caps change in practice: an illustrative example

Here is a simplified illustration of how the cap changes the distance to a forced close-out. Suppose you hold a $20,000 EUR/USD position (0.2 lots, where each pip is worth about $2) and your account contains exactly the minimum margin.

• At 30:1 (EU/UK/Australia retail cap), the required margin is about $667. If the position moves against you, the 50% margin close-out rule means your position is closed when losses reach roughly $333 — a move of about 167 pips against you.

• At 500:1, the same position needs only $40 of margin. A 50% margin level arrives after losses of about $20 — roughly 10 pips. In practice, a trader at 500:1 would usually hold more free balance, but the point stands: high leverage shrinks the price distance between opening a position and being closed out, for the same amount of margin committed.

These are illustrative figures computed for this article, not live quotes; real margin calculations also involve account currency conversion and any additional buffer your broker applies on top of the regulatory minimum.

Note what the cap does not do. It does not make leverage safe, prevent losses within the cap, or guarantee good execution. It slows the speed at which a leveraged loss can grow and, together with negative balance protection, puts a floor under how deep it can go.

What to check before choosing a broker for leverage

• Which entity holds your account? The leverage available follows the license and your classification, not the brand.

• What is your classification? If a broker offers you professional status, ask in writing what protections you give up — in most cases negative balance protection and the 50% close-out.

• Is the advertised leverage the regulatory maximum or the broker's policy? Some brokers apply tighter limits than the law requires; the cap is a ceiling, not a target.

• How is margin calculated for your instrument? The 20:1 tier covers not just minor pairs but also gold and major indices — a common point of confusion.

Leverage is a cost-of-speed decision, not a bonus. A cap that looks restrictive at 30:1 is also the reason a bad trade on a major pair cannot wipe out multiples of your margin in seconds.