Direct answer
An isolated position that is liquidated loses at most the margin put into it. For a 0.2 BTC long at 50,000 USDT, the margin at 2x, 5x, 10x, 20x and 50x is 5,000, 2,000, 1,000, 500 and 200 USDT — each one's loss cap. At 10x, a fall to the 45,248.87 USDT liquidation price gives a calculated net loss of 959.75 USDT, almost all of the margin. A stop at −3% loses only 309.85 USDT.
The result first
Assume 0.2 BTC bought at 50,000 USDT (10,000 USDT of notional), isolated, with a 0.50% maintenance rate and a 0.05% liquidation-fee reserve. In the liquidation calculator, the row "Margin lost at liquidation" is this position's loss cap.
At 2x the margin is 5,000 USDT and liquidation 25,138.26 USDT; at 5x, 2,000 USDT and 40,221.22 USDT; at 10x, 1,000 USDT and 45,248.87 USDT; at 20x, 500 USDT; at 50x, 200 USDT. The higher the leverage, the smaller the cap — and the closer liquidation.
Put the 10x liquidation price of 45,248.87 USDT into the futures PnL calculator as the exit and the net loss is 959.75 USDT, a return on margin of −95.98%: only about 40 USDT of the 1,000 USDT margin is left, and a real liquidation usually consumes that in fees too.
Why the cap is the margin
In isolated margin each position is supported only by its own margin. As the price moves against it, the margin balance shrinks; when only maintenance margin plus the liquidation fee remains, the exchange closes it. In the worst case, nearly all of that position's margin is lost.
Adding margin raises the cap as well: the same 10x position with 500 USDT added liquidates further away, at 42,735.04 USDT, but can now lose 1,500 USDT.
Cross margin is entirely different: the whole wallet supports the position, and liquidation can take the wallet's funds, not just the margin posted at opening.
Leverage, margin and the loss cap
The same isolated 0.2 BTC long at 50,000 USDT. The higher the leverage, the less margin and the lower the cap — and the closer liquidation; every row reproduces in the liquidation calculator.
| Leverage | Margin = loss cap (USDT) | Simplified liquidation (USDT) | Distance |
|---|---|---|---|
| 2× | 5,000.00 | 25,138.26 | 49.72% |
| 5× | 2,000.00 | 40,221.22 | 19.56% |
| 10× | 1,000.00 | 45,248.87 | 9.50% |
| 20× | 500.00 | 47,762.69 | 4.47% |
| 50× | 200.00 | 49,270.99 | 1.46% |
Stop against liquidation
At 10x, the net loss when closing at different prices. The earlier the stop, the smaller the loss; waiting for liquidation loses nearly all the margin.
| Exit (USDT) | Price move | Net loss (USDT) | ROE |
|---|---|---|---|
| 48,500 | −3% | 309.85 | −30.99% |
| 47,500 | −5% | 509.75 | −50.98% |
| 45,248.87 | liquidation | 959.75 | −95.98% |
What remains at liquidation
In the simplified model, liquidation happens when the margin balance equals maintenance margin plus the liquidation fee. At 10x, the position is worth about 9,049.77 USDT at the liquidation price, and 0.55% of that is about 49.77 USDT; the price loss of 950.23 USDT plus that 49.77 USDT reserve is exactly the 1,000 USDT of margin. The calculator's net loss of 959.75 USDT also counts the opening and closing fees.
In a real liquidation that remainder is usually consumed by the liquidation fee or the exchange's risk mechanisms, so treating "all the margin lost" as the worst case is the conservative and safer estimate.
The cost of adding margin
Adding margin moves liquidation away and raises the loss cap with it. Adding 500 USDT to the 10x position moves liquidation from 45,248.87 to 42,735.04 USDT and raises the cap from 1,000 to 1,500 USDT.
If the add is only to "hold on a bit longer", it raises the original worst case. Before adding, confirm the new cap still fits what you are willing to lose.
Low leverage does not mean a small loss
The lower the leverage, the more margin and the further liquidation — but the higher the cap: at 2x, all 5,000 USDT sit in this position. What decides how much a trade loses is not leverage but where you stop out and how big the position is.
At 10x, a stop at −3% (48,500 USDT) loses 309.85 USDT, and one at −5% (47,500 USDT) loses 509.75 USDT; no stop, waiting for liquidation, loses 959.75 USDT. A stop lets you choose the loss; liquidation is only the floor.
Setting up an isolated position, in order
Decide the most this trade may lose and turn it into a stop distance and a position size; then choose a leverage that puts liquidation beyond the stop with room to spare. The margin you post is the amount you agree to put up in the worst case.
Before ordering, confirm in the exchange's order preview that the mode is isolated, and check the estimated liquidation price and the margin used. DZPTO's figures are simplified estimates; the account shows what is executable.
Official sources and calculation boundary
That isolated margin bears losses with the position's own margin, and that liquidation happens when the margin balance falls to maintenance margin, follow Binance's liquidation and margin adjustment documentation. The actual loss after liquidation depends on the fill and the exchange's rules; treating the whole margin as lost is the conservative worst case.
- Binance: how to calculate the liquidation price of USDⓈ-M futures
- Binance: adjusting margin balance in cross and isolated mode
Next checks in this series
Frequently asked questions
Does an isolated liquidation affect the rest of my account?
No. Isolated margin bears the loss with that position's margin only; other funds and other isolated positions are untouched. Cross margin draws on the whole wallet.
Can a liquidation lose more than the margin?
In the simplified model liquidation happens when the margin balance falls to maintenance margin plus fees, so the loss approaches but stays slightly below the margin; real fills in extreme markets can be worse, under each exchange's rules.
Can isolated margin top itself up before liquidation?
Some exchanges offer automatic margin top-up, which moves available balance into the isolated position; with it on, the loss cap is no longer only the original margin, so check the exchange's settings.
Why is the calculated loss 959.75 rather than 1,000?
Liquidation happens when the margin balance still holds maintenance margin plus the liquidation fee; the calculator shows the net PnL of closing at the liquidation price, and the remaining 40 or so USDT is usually consumed by fees in a real liquidation.