CFD Margin Calls and Stop-Outs
A CFD margin call means your account equity has fallen below the broker’s required margin level. A stop-out is the forced closure of positions after the account breaches its liquidation threshold. The distinction matters: one signals a funding shortfall; the other turns open trades into completed trades, whether you wanted to exit or not. Brokers may also use “margin call” to describe the account’s status rather than an actual message, as IG’s margin call definition explains.
This guide focuses on what triggers these events, how the calculations work and what happens during liquidation. For the relationship between trade exposure and the deposit needed to support it, see our guide to CFD margin requirements. The examples below are illustrative, not account rules that apply everywhere.
When a Margin Call Becomes a Stop-Out
A warning threshold and a liquidation threshold can be different. Under IG’s published UK margin policy, an account enters margin call territory when equity falls below its margin requirement. Standard accounts become subject to automatic closure below 50% of that requirement. IG also warns that fast price movements can prevent it from notifying clients before positions close.
There is no guaranteed period in which to respond. Treat an email or platform alert as a backup, not as permission to wait. A market gap can move an account straight from adequate coverage to forced liquidation.
For UK retail CFD accounts, the FCA’s margin closeout rules require firms to close positions as soon as market conditions allow when account net equity falls below 50% of the applicable margin requirement. This is an account measure, not a rule that each trade may lose only half its opening deposit.
Check the policy for your contracting broker entity and client classification. Do not assume that another country, a professional account or a different platform uses the same warning levels.
The Numbers Behind a CFD Margin Call
The account balance alone does not tell you whether liquidation is approaching. Open losses matter before you close a trade. Using the conventional definitions in CMC Markets’ explanation of margin calculations:
- Balance: the account’s cash balance after booked transactions, excluding unrealized trading profit or loss.
- Equity: balance plus unrealized profits, minus unrealized losses.
- Used margin: the amount committed to supporting open positions.
- Free margin: equity minus used margin.
- Margin level: equity divided by used margin, multiplied by 100.
Margin level (%) = Equity ÷ Used margin × 100
At a 100% margin level, equity equals used margin and free margin is zero. That does not necessarily mean automatic closure: the broker’s liquidation threshold may be lower. Nor does a positive account balance establish that sufficient equity remains.
Platform labels need care. A falling “margin level” can indicate worsening coverage, while another indicator rises as liquidation approaches. For example, OANDA’s UK margin documentation explains that its v20 Margin Closeout Percent approaches 100% as the account approaches closeout. Do not apply one platform’s percentage rules to another platform’s display.
Worked Example: From Adequate Margin to Forced Closure
Assume a hypothetical account has a £10,000 balance and open CFDs requiring £4,000 of used margin. Its warning threshold is below 100%, and its stop-out threshold is below 50%. Used margin stays fixed throughout this example. Ignore financing charges, commissions and further execution costs.
| Unrealized loss | Account equity | Margin level | Account position |
|---|---|---|---|
| £0 | £10,000 | 250% | £6,000 of free margin |
| £6,000 | £4,000 | 100% | No free margin remains |
| £7,000 | £3,000 | 75% | Below the warning threshold |
| £8,000 | £2,000 | 50% | At the closeout boundary |
| £8,100 | £1,900 | 47.5% | Below the stop-out threshold |
The closeout boundary is £2,000 because 50% of £4,000 is £2,000. It is not £5,000, which would be half the original account balance.
By the time this account reaches the 50% boundary, it has lost 80% of its starting equity. That is why a stop-out threshold makes a poor trading loss limit. The final row shows a breached threshold, not a promised execution price.
Why Closing a Losing Trade Can Improve Margin Coverage
Continue the example at £1,900 equity. Suppose closing one position releases £2,000 of margin, leaving used margin of £2,000. Assume its closing price equals the price already used to value it, with no extra charges.
Equity remains £1,900, but the margin level rises to 95%: £1,900 ÷ £2,000 × 100.
The open loss was already included in equity. Closing the trade transfers that loss into the balance; it does not deduct the same loss twice. The improvement comes from reducing the margin requirement. The remaining account is above its illustrative stop-out threshold, although it is still below the 100% warning boundary.
What Else Can Trigger a Margin Shortfall?
A falling market is not the only cause. The calculation has two moving parts: equity and required margin.
A higher margin requirement can reduce coverage without another trading loss. IG states in its margin call policy that requirements can change. In a hypothetical account with £5,000 equity, increasing required margin from £4,000 to £6,000 reduces the margin level from 125% to about 83.3%, even if equity stays unchanged.
Charges can reduce equity. Commissions and financing debits leave less money supporting the account. CMC Markets’ charges documentation describes commissions deducted from cash balances and overnight holding adjustments, which may be debits or credits. A small charge matters more when coverage is already close to a threshold. Our guide to CFD overnight financing covers those calculations separately.
More positions can consume the remaining buffer. As a simple calculation, £6,000 equity against £3,000 margin gives 200% coverage. If another trade increases total required margin to £5,000, coverage drops to 120% before allowing for its trading costs or price movement.
The same arithmetic explains why a withdrawal needs review while trades remain open: reducing equity while keeping required margin unchanged reduces coverage.
How to Respond to a Margin Call
Start with the live account figures, not the figures in an earlier notification. Check equity, used margin, the liquidation threshold and which positions are still open.
The mechanical responses are to reduce positions or add eligible funds. OANDA Europe’s margin rules describe partial reductions, closing individual positions and transferring funds. They also warn that a transfer may arrive too late. Do not count a payment as available margin until the trading account recognizes it.
Reducing Exposure Versus Adding Cash
Consider £3,000 equity supporting £4,000 of margin: coverage is 75%.
Depositing £1,000 would bring equity to £4,000 and coverage to 100%, assuming nothing else changes. That reaches the illustrative warning boundary but leaves no free margin. It does not reverse the loss or reduce the remaining trade exposure.
Alternatively, reducing positions so required margin falls to £2,000 would bring coverage to 150%, assuming equity remains £3,000. This comparison is arithmetic, not a recommendation to close a particular trade. It shows why the two responses are not economically equivalent.
A useful decision test is whether you would open the remaining positions at their current size now. If the answer is no, depositing more money solely to postpone closure deserves scrutiny. ASIC’s Moneysmart guidance on CFD risks warns that paying more following a margin call can lead to further losses.
Which Positions Will the Broker Close?
Do not assume the broker will preserve your preferred trade. Liquidation order depends on its rules and the account setup.
For example, FXCM’s UK MT4 liquidation policy describes closing trades in descending order of unrealized loss. By contrast, OANDA’s UK account rules distinguish between v20 accounts, where closeout closes all open positions that can be traded, and OANDA One accounts, where positions are closed progressively until coverage recovers.
OANDA also notes that positions in unavailable markets can remain open. A closeout event therefore does not necessarily mean the account has no exposure left. Check the remaining positions rather than relying on the notification alone.
Stop-Outs, Stop-Loss Orders and Negative Balance Protection
These controls address different problems. A stop-loss order targets an exit price for a trade. A margin stop-out responds to insufficient account coverage. Negative balance protection addresses losses beyond the funds in an eligible account.
A Stop-Loss Does Not Override Margin Rules
A normal stop-loss may execute at a worse price after a gap. A guaranteed stop offers a different contractual promise: IG’s guaranteed stop documentation, for example, states that it executes at the selected level when triggered, with a premium payable.
Neither should be confused with protection against an earlier account closeout. ESMA’s explanation of guaranteed stops and margin closeout confirms that an account-level liquidation rule can close a position before its guaranteed stop is reached. Losses elsewhere in the account can affect the outcome.
See CFD stop-loss orders and guaranteed stops for order mechanics. Here, the practical point is to assess account coverage as well as each trade’s planned exit.
A 50% Threshold Does Not Guarantee Half Your Money Back
The threshold determines when closure is required, not an execution price. The FCA requires closure as soon as market conditions permit, rather than promising execution at the instant a percentage is crossed. Its separate negative balance protection rule caps an eligible retail client’s liability at the funds in the relevant account. It does not protect those funds from being lost.
Do not assume those protections follow you into every account category. ASIC’s guidance on wholesale CFD accounts warns that Australian wholesale clients may lose margin closeout and negative balance protections. Check classification before accepting a change of account status.
Set a Margin Buffer Before Opening Trades
For planning purposes, translate the percentage into money. With a fixed margin requirement and a known closeout fraction:
Equity above the closeout boundary = Current equity − (Used margin × Closeout fraction)
Suppose equity is £6,000, used margin is £4,000 and the closeout fraction is 0.50. The account has £4,000 above the mathematical boundary: £6,000 − £2,000.
Now stress that calculation. If required margin rises to £6,000, the boundary rises to £3,000 and the amount above it falls to £3,000. If a further £1,000 loss occurs, only £2,000 remains above that revised boundary.
This is a planning estimate, not a guaranteed loss allowance. Build scenarios around simultaneous losses, charges and changes in required margin. Avoid treating every pound above liquidation as money available to risk.
Use CFD position sizing to decide trade size from an acceptable loss, then check whether the resulting account has sufficient margin capacity. That order is more useful than starting with the largest position the platform will accept.
Review an Unexpected Stop-Out Before Trading Again
If a closure seems wrong, preserve the account statement, order records, execution times and relevant broker notices. Ask the broker to identify the equity figure, margin requirement, threshold and liquidation sequence used.
Reconstruct the calculation before drawing a conclusion. Check whether you compared balance with equity, used the wrong percentage indicator, overlooked a charge or assumed margin requirements had stayed fixed.
Then review the wider CFD risk management plan. The useful question is not simply how to restore enough margin to trade again. It is why the account reached forced liquidation before your own exit rules took effect.