Leverage lets you control a large position with a small deposit called margin. At 1:100 leverage, $1,000 of margin controls $100,000 of currency. Leverage does not set your risk. Your position size and stop distance do. High leverage only becomes dangerous when it tempts you into a position too big for your stop.
What leverage is
Leverage is borrowed exposure. You post a fraction of the position's value, the margin, and your broker covers the rest. It is written as a ratio such as 1:30, 1:100 or 1:500. At 1:100, every $1 of margin controls $100 of currency.
Forex uses high leverage because currency moves are small. A big day might be 1%. Leverage scales those moves into meaningful returns and, equally, meaningful losses.
How margin works
Margin is the deposit a position requires. It is the inverse of leverage.
Margin required = position size ÷ leverage.
A $100,000 position, one standard lot, needs $1,000 of margin at 1:100. At 1:30 it needs $3,333. Margin is not a fee. It is set aside while the trade is open and returned when you close. Free margin is what remains to absorb losses.
Why leverage is not risk
Two traders both have 1:500 available. One risks 1% on a trade with a 30-pip stop. The other loads up until the position is enormous. The risk is very different. Leverage is a ceiling on position size, not a measure of danger.
Your real risk is set by position size and stop distance, using the same arithmetic as the pip value guide. A trader who sizes every position from a 1% risk cap is equally safe at 1:30 or 1:500. Leverage only hurts when you let it decide your size.
Margin calls and stop-outs
When open losses eat into your margin, the broker protects itself. A margin call is the first warning: your equity has fallen close to the margin your positions require.
If losses continue and equity drops through the broker's stop-out level, often around 50% of required margin, the broker closes positions automatically. It starts with the biggest loser, to stop your balance going negative.
A stop-out is a forced exit at the worst moment. If a margin call is even plausible, the position was too big.
Regulatory limits
Many regulators cap retail leverage because high leverage lets inexperienced traders destroy accounts quickly. In the EU and UK, leverage on major currency pairs is limited to 1:30. Australia's ASIC applies the same cap. Offshore brokers may advertise 1:500 or more, which signals a lighter-touch regulator, not a better deal.
If you trade from Singapore, the Monetary Authority of Singapore (MAS) governs retail leverage. Confirm the current limit with your MAS-licensed broker, because these rules are updated periodically.
How much should a beginner use
As little as your position sizing implies. If you cap risk at 1% and size from your stop, your effective leverage will typically be low single digits, even if 1:500 is on offer. Let the risk rule set the size. Judge trades by their dollar risk. For the full framework, see strategy and risk management.
Questions
What is the difference between leverage and margin?
Leverage is the ratio of position size to the deposit required. Margin is that deposit in money. Margin required equals position size divided by leverage.
Is high leverage bad?
Not automatically. It is capital efficiency. It becomes dangerous only when it tempts you to open a position too large for your stop. Position size and stop distance set your risk, not the ratio.
What is a margin call and a stop-out?
A margin call warns that your equity is nearing the margin your open positions require. A stop-out is the broker closing positions once equity falls through a set level.
70–80% of retail investor accounts lose money trading CFDs. This page is education, not advice. All trade examples are constructed composites.
