What Does Free Margin Mean in Forex? Examples and Key Facts in 2026

Free margin is the part of your account equity that is not locked up as security for open trades. In other words, it is the money you still have available to open new positions or to absorb losses on the ones that are already running. When the figure falls toward zero, you are close to a margin call, so understanding it is not an academic exercise; it is the most direct warning light on a leveraged trading platform.

Many beginners look only at the balance and ignore the margin section at the bottom of the terminal. This guide corrects that. You will see the formula, three small worked examples, the link between free margin, equity, used margin and margin level, and a practical routine to keep a safe cushion.

The numbers are invented for teaching purposes. To watch the values move in real time without risk, you can open a JustMarkets demo and watch the free margin figure change as you open and close positions and open a few trades with virtual money.

Key Facts

• Free margin equals equity minus used margin, so it is the amount available to open new trades or withstand adverse price moves.
• Used margin is the amount the broker holds as collateral for open positions; it depends on position size, leverage and the instrument.
• Equity is balance plus or minus the floating profit or loss of open positions, so free margin changes whenever prices move.
• Free margin reaching zero means no new positions can be opened and the account is close to a margin call or stop out.
• A larger lot size or lower leverage increases used margin and reduces free margin.

The Formula in Plain Words

The formula is short: free margin equals equity minus used margin. Equity is what your account is worth right now, including profit or loss from positions that are still open. Used margin is the collateral that your broker blocks to keep those positions.

Say you deposit 1,000 units of account currency and have no open trades. Equity is 1,000, used margin is zero, so free margin is 1,000. You open a position that requires 100 as margin. Used margin is now 100 and free margin is 900, provided the position is at break-even. If the position loses 50, equity falls to 950, and free margin falls to 850. If it gains 50, equity rises to 1,050 and free margin rises to 950.

This tells you something important: free margin is not fixed when you open the trade. It breathes with the market. A trade that looks safe at the start can consume the cushion if price moves against you.

MetaTrader 4 or MetaTrader 5?

Both platforms are free and widely supported, but they are not interchangeable. MT4 is simpler, has a huge library of custom indicators and Expert Advisors, and suits pure forex traders. MT5 is newer, adds more timeframes, more order types, a depth-of-market window and a built-in economic calendar, and it handles more asset classes smoothly.

• Pick MT4 if you rely on existing indicators or EAs.
• Pick MT5 if you want extra timeframes, depth of market or multi-asset trading.
• Remember accounts are platform-specific; a login for one will not work in the other.
• Expert Advisors written for MT4 usually need rewriting for MT5.

Whichever you choose, install it only from the broker's official page or a recognised app store, and use the server name shown in your client area when logging in.

Free Margin Compared With Balance and Equity

Balance is the money in the account from deposits, withdrawals and closed trades. It changes only when a trade closes, or when funds move. Equity is balance plus floating profit and loss, so it moves tick by tick. Free margin comes from equity, not from balance.

That matters because a trader who looks only at the balance can be unaware that floating losses have already eaten most of the cushion. A balance may read 1,000 while equity is 600 and free margin is 400 or less. The platform shows all of these values in the account section of the terminal; learn where they are and read them whenever you have open positions.

If you ever need to check how the numbers are labelled on a real platform, you can check the margin and leverage settings shown for each account type during Exness registration and look at the account window after you register.

Mistakes That Cost Beginners the Most

Looking at why small accounts fail, the same errors repeat. Traders open positions that are too large for the stop distance, hold losers hoping for a reversal, close winners too early out of fear, and then compensate by taking oversized, low-quality trades. They also trade at the worst times, such as right before major announcements or just before the daily rollover when spreads can balloon.

Another quiet mistake is neglecting the paperwork side: using someone else's payment account, submitting an expired document or forgetting which email the account was registered with. None of these affect your analysis, yet each can freeze access to your own money for days.

Keep a short list of your own recurring mistakes in the journal. Reading it before each session is surprisingly effective.

Used Margin and Leverage

Used margin is the collateral for open positions. It is calculated from the position size and the leverage on the account. A rough idea: the contract value of the position divided by the leverage ratio gives the margin needed. A higher leverage ratio means a lower margin requirement for the same position, so more free margin remains at the start.

That is why higher leverage is attractive to beginners, and also why it is dangerous. With less margin used you can open a larger position, and a larger position makes each price move more expensive. The free margin looks comfortable when you open the trade, then it disappears quickly during a move against you.

Brokers set leverage differently depending on the instrument, the client's category and the regulator. Always check the number applied to your own account rather than relying on a figure you saw online.

Free Margin and Margin Level

Margin level is a percentage: equity divided by used margin, multiplied by 100. It is the figure that brokers use to decide whether to send a margin call or close positions. A margin level of 500 percent means equity is five times used margin. A level of 100 percent means equity equals used margin, and free margin is zero.

Free margin and margin level tell similar stories in different forms. Free margin is a money amount, margin level is a ratio. If you want a simple rule, keep free margin large compared with your planned risk, and keep margin level well above the broker's warning threshold. Brokers publish their margin call and stop-out levels, so read them for your account type.

What Happens When Free Margin Reaches Zero

At zero free margin, you cannot open new positions. If equity continues to fall, the account moves toward the margin call level, where the broker warns you, and then toward the stop-out level, where the platform starts to close positions automatically, usually beginning with the largest loser.

A stop out is not a penalty, it is a mechanism that protects the broker and sometimes you from a negative balance. But it is a poor way to exit a trade because it happens at whatever price is available, often at the worst moment.

Many traders reach this point by adding to losing positions, hoping to average down. That uses extra margin just when free margin is already shrinking. If you notice yourself doing this, stop and reduce risk instead.

Three Worked Examples

Example one: a small account. The account has 500 in equity and a position that requires 50 margin. Free margin is 450. If the position loses 200, equity falls to 300, free margin falls to 250 and the margin level drops from 1,000 percent to 600 percent. The account is stressed but not in danger.

Example two: a larger position on the same account. The trader opens a position that needs 300 margin. Free margin is 200. A loss of 150 reduces equity to 350 and free margin to 50, and the margin level is close to 117 percent. One more adverse move triggers a warning.

Example three: several correlated trades. Three positions each use 100 margin, and all depend on the same currency. Free margin looks acceptable at the start, but one event hits all three. Losses add up, and free margin falls much faster than the single position example would suggest.

The lesson from each case is the same: the figure that matters is how much loss you can absorb before the platform steps in.

How to Keep a Healthy Free Margin

Start by sizing positions according to risk, not according to what free margin allows. Many platforms will let you open a position that uses almost all your margin, which is almost never wise. A common rule among cautious traders is to keep used margin as a modest fraction of equity.

Use stop-loss orders to put a limit on how far free margin can fall in each trade. Without a stop, the cushion is only as strong as your willingness to close the trade manually.

Limit the number of open positions and watch correlations. Ten small trades that all react to the same event act like one big trade.

Finally, treat free margin as a monitoring tool. Check it before you open a trade, after you open it and before you leave the screen. If it falls below a threshold you set in advance, reduce exposure.

Free Margin on Different Account Types

Standard, cent, micro and professional accounts all use the same logic, but the contract sizes and margin requirements differ. On a cent account the displayed numbers may be in cents, which can cause confusion for beginners. Always check the currency and the unit of the account before reading the values.

Hedged and netting accounts treat opposite positions differently. In a hedged account, opposing positions can both use margin, though some brokers offer reduced margin for hedged positions. In a netting account, opposite positions offset each other. Look at your account type to know which rule applies, and read the broker's margin policy.

Common Mistakes

The first mistake is opening a trade just because free margin is available. The platform allows what it allows; your risk plan decides what you should do.

The second is ignoring floating loss. Traders sometimes leave a losing position open, saying it is not a loss until it closes. From the platform's point of view the loss is already part of equity and therefore of free margin.

The third is forgetting that margin requirements can change. Before major events or on weekends, brokers may raise margin requirements or reduce leverage on certain instruments, which reduces free margin without any change in price.

The fourth is trading with no cushion at all and relying on luck. A good habit is to keep at least a portion of equity free at all times, even when a setup looks perfect.

Checking Free Margin Before Each Trade

Create a short pre-trade routine. Read equity, used margin and free margin. Calculate the margin that the new trade will use. Estimate the loss at the stop-loss level and confirm that free margin after that loss would still be comfortable. If not, reduce the position size or skip the trade.

Doing this takes thirty seconds and prevents most unpleasant surprises. It also forces you to define the stop-loss before the trade, which is the discipline that many new traders lack.

Why Brokers Show Free Margin Prominently

Free margin appears in the trade window because it is the figure that decides whether the platform will let you open a new position. Before accepting an order, the system checks whether free margin is enough to cover the extra margin that the order needs. If it is not, the platform shows a message about insufficient funds, even though your balance might look large.

This is a common source of confusion. A trader with a decent balance sees an error and assumes the platform is faulty. In reality, existing positions have already reserved margin and floating losses have lowered equity, so the remaining free margin is smaller than the new order needs. Reading the three numbers together explains the message at once.

Free Margin and Position Sizing

A reliable way to use free margin is to treat it as a ceiling, not a target. First choose the risk for the trade, for example a small fraction of equity. Next measure the distance from entry to stop-loss. Then compute the position size that matches the risk. Only after that, check that the margin required for this size is a small part of free margin.

Many beginners reverse the order: they pick the biggest size that free margin allows, then place a stop wherever it fits. That approach makes the risk of each trade depend on how much margin is left, which is a recipe for oversized positions after a winning streak and panicked ones after a losing streak.

Use the margin calculator that many brokers provide on their websites or inside the platform to find the margin for a given lot size and leverage, and compare it with your free margin before every order.

Floating Losses and the Illusion of Safety

Free margin decreases as soon as a position moves against you, even if you have not closed it. Some traders think that nothing is lost until a trade is closed. For the platform, that is not true: the loss is already part of equity, and it affects what you can do next.

This has two practical consequences. First, a series of small floating losses on several trades can reduce free margin without any single trade looking dangerous. Second, closing a losing position increases free margin only by removing the margin it used, not by erasing the loss; the loss becomes realised and permanently lowers the balance.

The right response is to decide in advance how much floating loss you accept, and to close positions that exceed that limit rather than hope for a reversal.

Special Situations That Change Free Margin

Several events change free margin without any trade of yours. Swap charges are deducted from equity and can reduce it slowly over time. Dividend adjustments on certain index CFDs can affect equity on specific dates. Currency conversion matters if your account currency differs from the instrument's quote currency, since the margin requirement is converted at the current rate.

Spreads also play a role. When spreads widen during news or at rollover, floating loss on open positions can jump even if the mid price barely moves. Keep this in mind when you hold positions near a margin limit.

Lastly, brokers may change leverage for specific instruments during volatile periods. A position that needed one amount of margin yesterday may need more today. Read your broker's notices and check the margin requirement for open positions regularly.

A Quick Self-Test

Open your platform and write down four numbers: balance, equity, used margin and free margin. Check that equity minus used margin equals free margin. Then imagine that every open position hit its stop-loss at once and compute what equity and free margin would be afterwards. If the answer leaves you with less than a comfortable cushion, your open risk is too high for the account. Repeat this exercise weekly; it takes a couple of minutes and teaches you more about margin than any definition.

Frequently Asked Questions

What does free margin mean in forex?

Free margin is the part of your equity that is not used as collateral for open trades. It is the money available to open new positions or absorb losses.

How do I calculate free margin?

Subtract used margin from equity. Equity is your balance plus or minus the floating profit or loss of open positions.

Is free margin the same as balance?

No. Balance changes only when trades close or funds move, while free margin changes with every price move because it is based on equity.

What happens if free margin is zero?

You cannot open new trades, and if losses continue the broker may issue a margin call and then close positions at the stop-out level.

How can I increase free margin?

Close or reduce positions, deposit funds, or reduce position size on new trades. Higher leverage lowers used margin but increases risk.

Is high free margin always good?

It gives more cushion, but it does not make a trade safe. Sensible position sizing and stop-losses still matter.

Treat Free Margin as Your Safety Gauge

Free margin tells you how much room you have before the account is under pressure. It equals equity minus used margin, it moves with every tick and it falls fast when position sizes are large or correlated. Track it before and after each trade, size positions by risk and keep a buffer so that one bad move does not decide the fate of the account.

Because leveraged trading can cause losses beyond expectations, this guide is general education and not a recommendation.

🔥 Your next move: If you want to compare how another broker explains margin rules, compare how FP Markets explains margin requirements before you size a trade and read its margin section before you decide on position size.

📌 Important: CFD Risk Warning and Disclosure

CFDs and leveraged forex are complex instruments. Because you trade on margin, a small price move against you can remove a large part of your balance quickly, and a majority of retail traders lose money when trading CFDs. Before you open or fund any account, make sure you understand how leverage, margin, swaps and stop-outs work, and only trade with money you can afford to lose. Examples in this article are illustrations, not forecasts, and past performance is not a reliable guide to future results.

Disclaimer: this article is general information and education only. It is not financial, investment, tax or legal advice, and it is not a recommendation to open an account with any provider. Broker conditions, licences, payment methods and local laws change; confirm the current position on the broker's official website, with the relevant regulator and, where needed, with a qualified adviser.

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