What Is Margin?
Margin is the deposit your broker requires you to set aside to open and maintain a leveraged CFD position. It is not a fee or a cost — it is collateral. Think of it as a good-faith deposit that your broker holds to cover the potential losses that could arise from your open trade. When you close the position, any remaining margin is returned to your free balance, minus any losses incurred.
In practical terms, margin is the mechanism that makes leverage possible. Without margin requirements, brokers would have no protection against clients losing more than they have deposited. With margin, the broker ensures that a meaningful portion of your own capital is always at risk alongside theirs — creating a shared incentive to monitor open positions responsibly.
Understanding margin is not optional if you trade CFDs. Every platform you will ever use — MetaTrader 4, MetaTrader 5, cTrader — displays real-time margin information in your trading terminal. Knowing how to read and act on that information is one of the most important skills a CFD trader can develop. For background on how CFDs work in general, start with our what is CFD trading guide before continuing here.
The amount of margin required for any given trade is determined by two factors: the total value of the position and the leverage applied. The higher the leverage, the lower the margin as a percentage of the position value — but the faster your margin can be consumed by an adverse price movement. To understand the relationship between leverage ratios and margin percentages in detail, read our companion CFD leverage explained guide.
Initial Margin vs Maintenance Margin
There are two distinct types of margin that every CFD trader needs to understand. Confusing them is one of the most common mistakes beginners make, and the confusion can lead to nasty surprises when positions are unexpectedly closed.
In plain language: initial margin is what you need to get in, and maintenance margin is what you need to stay in. If your trading account equity deteriorates to the point where it cannot cover the maintenance margin, you will face a margin call — and potentially a forced position close-out.
Margin Calculation Example
Let us walk through a complete, real-world margin calculation using EUR/USD — the world's most traded Forex pair — with the maximum ASIC retail leverage of 1:30.
Opening 1 Standard Lot EUR/USD at 1:30 Leverage
Now let us extend this example further. Suppose you also open a 1 lot position on the S&P 500 index CFD at a value of $20,000, using the maximum 1:20 leverage for major indices:
Account with Two Open Positions
A margin level of 108.4% is dangerously close to the typical margin call threshold of 100%. Any adverse price move on either position — even a few dozen pips on EUR/USD — would push the margin level below 100% and trigger a margin call. This example illustrates why most experienced traders recommend maintaining a margin level above 200% at all times.
What Is a Margin Call?
A margin call is a notification from your broker that your account equity has fallen below the required margin level to maintain your open positions. The name derives from the era when brokers would literally telephone clients to demand additional funds — today, it typically appears as an alert in your trading platform, though some brokers also send emails or push notifications.
When a margin call is triggered, you have two options:
- Deposit additional funds to restore your account equity above the required margin level.
- Close some or all of your open positions to reduce your used margin and bring your margin level back above the required threshold.
If you take neither action quickly enough — or if the market continues moving against you faster than you can respond — your broker will trigger a stop-out. At the stop-out level (typically 50% with most ASIC-regulated brokers), the broker automatically begins closing your open positions, starting with the largest losing position first, until your margin level recovers above the stop-out threshold.
⚠️ Risk Warning — Margin Calls Are Not a Safety Net
A common misconception is that a margin call gives you time to respond before losses escalate. In fast-moving markets — such as during central bank announcements, major economic data releases, or geopolitical events — prices can move so rapidly that your broker's platform executes stop-outs before you have any opportunity to act. Never allow your margin level to drop close to 100%. Maintain a margin buffer of at least 2× your used margin at all times. ASIC requires that all ASIC-regulated brokers apply negative balance protection to retail clients, meaning your losses cannot exceed your deposited balance — but this is a last resort, not a substitute for disciplined margin management.
How to Avoid a Margin Call
Experienced CFD traders rarely face margin calls — not because markets always move in their favour, but because they actively manage their margin level as part of their standard trading routine. Here are the most effective strategies:
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Always Use a Stop-Loss on Every Position
A stop-loss caps your maximum loss on any individual trade at a defined dollar amount. If you place a stop-loss that limits your loss to $100, your account equity can only decrease by $100 from that trade — preventing a single position from consuming your entire margin buffer. Stop-losses are your first and most important defence against margin calls.
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Keep Your Margin Level Above 200%
A margin level of 200% means you have twice the equity needed to cover your current positions. This gives you a substantial buffer to absorb adverse price moves before approaching the margin call threshold. As a practical rule: if your margin level drops below 200%, review your open positions and consider reducing exposure.
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Avoid Over-Leveraging
Opening positions that use the maximum available leverage on your full account balance leaves almost no buffer for adverse market movement. Use lower leverage than the maximum permitted — especially when you are new to trading. Keeping your effective leverage at 5:1 or below, even when your broker permits 30:1, gives you significantly more room to breathe.
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Don't Open Too Many Simultaneous Positions
Each new position consumes a portion of your free margin. Spreading your capital across too many trades simultaneously means each losing position reduces the margin buffer available for all others. As a general rule, beginners should keep no more than three to five positions open at any one time until they have developed reliable risk management discipline.
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Monitor Margin Level Before and During News Events
Major economic announcements — non-farm payrolls, central bank rate decisions, inflation data — can cause currency pairs and indices to move 50–200 pips in seconds. If you have positions open heading into a high-impact news event and your margin level is already tight, consider closing or reducing positions before the announcement to protect yourself from stop-out.
Margin Level and Free Margin
Two figures on your trading platform's account summary are critical to margin management: margin level and free margin. Understanding exactly what they mean — and how they change in real time — is essential knowledge for any leveraged trader.
Equity = Account Balance ± Unrealised P&L on all open positions
Free Margin is the amount available to open new trades or absorb further losses
Let us put both formulas to work with a concrete example:
| Account Snapshot | Value | Status |
|---|---|---|
| Account balance | $2,000 | — |
| Unrealised P&L on open trades | −$400 | Trade losing |
| Equity (balance + unrealised P&L) | $1,600 | — |
| Used margin (total reserved) | $1,000 | — |
| Free margin (equity − used margin) | $600 | Moderate |
| Margin level (equity ÷ used margin × 100) | 160% | ⚠️ Caution |
In this snapshot, the margin level of 160% is above the typical margin call threshold of 100%, but well below the recommended 200%. The trader has $600 of free margin — enough to absorb a further $600 of losses before the margin call is triggered. If the losing trade(s) deteriorate further without a stop-loss catching them first, the trader will be approaching dangerous territory. This is exactly the kind of situation where a prompt review and position reduction is advisable.
Grand Markets displays all of these figures — balance, equity, margin, free margin and margin level — in real time within MT4 and MT5. You can monitor them at a glance via the "Trade" tab of the Terminal window. Using these figures as a regular dashboard is a habit that distinguishes disciplined traders from those who encounter unexpected margin calls.
Grand Markets — ASIC Regulated, $100 Min Deposit, $200 Cash Reward
Grand Markets is our top-ranked ASIC broker for 2026. Its MT4 and MT5 platforms display live margin level, free margin and used margin in real time, giving you the transparency you need to manage your positions responsibly. With a minimum deposit of just $100 and full negative balance protection for retail clients, it is an ideal starting point for traders learning to manage margin.
- ASIC Regulated (Licence 554475) — negative balance protection on all retail accounts
- $100 minimum deposit — start with a manageable position size while you learn margin management
- Real-time margin level display — MT4/MT5 Terminal shows equity, margin and margin level live
- $200 Cash Reward — the highest cash bonus available from any ASIC broker in 2026
- ECN spreads from 0.0 pips — lower costs mean your margin lasts longer