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Leverage lets a perpetual-futures position control more notional value than the cash posted as initial margin. It does not reduce the position’s exposure: losses are still calculated on the full position, and the trade can be liquidated when the collateral supporting it falls below the contract’s maintenance-margin requirement. The liquidation price is therefore a mark-price threshold calculated from your size, entry price, margin mode, account collateral, unrealized profit or loss, and the exchange’s current risk tier—not a universal percentage-loss figure.
Leverage is a ratio of exposure to initial margin
A perpetual futures contract has no expiry date, but its margin mechanics are similar to other leveraged derivatives. When you open a position, you commit initial margin while taking on a larger notional position. If the position is worth 20,000 USDT and you select 10× leverage, the basic initial-margin relationship is:
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Initial margin = position value ÷ leverage
Position value is generally calculated as quantity multiplied by the contract’s mark price. Bybit states the relationship in its USDT perpetual FAQ as “position value ÷ leverage,” with position value equal to “quantity (size) × mark price.” The selected leverage changes how much collateral is reserved to open a fixed-size position; it does not change the position’s notional exposure or make a one-percent price move less significant.
For example, a 2 BTC position at a 30,000 USDT mark price has 60,000 USDT of notional value. At 5× leverage, the basic initial-margin amount is 12,000 USDT. At 20× leverage, it is 3,000 USDT. In both cases, a 1,000 USDT adverse move in the underlying produces approximately the same mark-to-market loss per BTC, before contract-specific details and fees. The higher-leverage version simply starts with less assigned collateral and therefore has less room before maintenance requirements are breached.
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Leverage settings are also constrained by the contract’s risk tiers. An exchange may permit a high maximum leverage for a small position but reduce the maximum as notional exposure rises. Treat any leverage selector as a contract- and tier-specific limit, not as a promise that every position can use the headline maximum.
Initial margin and maintenance margin do different jobs
Initial margin opens the position
Initial margin is the collateral calculated when the order is accepted. For a fixed quantity, increasing leverage lowers this opening requirement. The calculation is useful for estimating how much balance must be available before placing an order, but it is not a liquidation-price formula.
Maintenance margin keeps it open
Maintenance margin is the minimum collateral required to keep the position open. Binance describes liquidation as occurring when collateral—initial collateral plus realized and unrealized profit or loss—falls below the applicable maintenance margin. The requirement depends on the contract, position notional, risk tier, account mode, and the exchange’s maintenance-rate and maintenance-amount schedule.
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What a liquidation price actually represents
The displayed liquidation price is the mark-price level at which the exchange’s calculation determines that the position or account no longer meets its maintenance requirement. Exchanges use mark price rather than the last traded price to reduce the chance that a brief, abnormal trade triggers liquidation. The exact mark-price construction and trigger procedures are venue-specific, so the liquidation figure shown by one platform cannot be transplanted to another.
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A liquidation calculation typically incorporates:
- Position direction (long or short).
- Entry price and current mark price.
- Position quantity and notional value.
- Assigned or eligible collateral.
- Realized and unrealized profit or loss.
- The maintenance-margin rate and fixed maintenance amount for the applicable risk tier.
- Other positions and their unrealized profit or loss when cross margin is used.
In isolated margin, the calculation normally uses the wallet balance assigned to that position and sets other-position terms to zero. In cross margin, the venue may use eligible account balances and include other positions when determining account equity and liquidation risk. These are calculation conventions, not a universal industry formula.
Isolated and cross margin compared
| Feature | Isolated margin | Cross margin |
|---|---|---|
| Collateral considered | Balance assigned to the individual position | Eligible account collateral supporting positions, subject to the venue’s rules |
| Effect of another position | Normally excluded from that position’s liquidation calculation | Can raise or lower account equity and influence liquidation risk |
| Loss containment | A liquidation generally limits the loss to the assigned margin, plus any venue-specific adjustments | A losing position can consume wider account collateral |
| Liquidation relationship | Long and short positions can be liquidated independently; Bybit documents this behavior for isolated positions | Risk is evaluated at account or portfolio level according to the venue’s netting and collateral rules |
| Margin additions | Some venues offer automatic margin replenishment from available balance | Available collateral is already part of the cross pool, subject to eligibility |
Isolated margin makes the maximum planned collateral loss easier to identify, but it can liquidate sooner because no unused account balance is available to absorb losses. Cross margin can provide more distance from liquidation when the account has spare collateral, while connecting otherwise separate positions to the same liquidation risk. Read the venue’s documentation for exactly which assets, unrealized profits, and hedged legs count.
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Many futures schedules use a tiered expression similar to:
Maintenance margin = position notional × maintenance-margin rate − maintenance amount
Both the rate and the maintenance amount come from the contract’s current tier. The tier is commonly determined by notional exposure, so increasing position size can raise the maintenance requirement even if the leverage setting is unchanged. A higher tier may also impose a lower maximum leverage.
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Binance’s published BTCUSDT example
Binance’s liquidation-price guide, published June 11, 2020 and updated December 31, 2025, illustrates the arithmetic with a 10 BTC position and a 26,000 USDT mark price. The notional value is 260,000 USDT. The guide places that example in margin tier 3 and uses a 1% maintenance rate with a 1,300 USDT maintenance amount, producing 1,300 USDT of maintenance margin under the stated inputs.
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Those figures belong to the guide’s worked example. They are not a current universal BTCUSDT schedule, and they should not be used to calculate a live position without checking the contract page and account display for the relevant date, tier, and margin mode. The example’s main lesson is structural: maintenance margin is tiered and separate from the initial-margin calculation.
Why your displayed liquidation price can move
A liquidation price is a live risk estimate, not a permanent property of the order. It can change for several independent reasons:
- Mark-price movement: As the mark price changes, unrealized profit or loss changes and the distance to the maintenance threshold changes.
- Margin deposits or withdrawals: Adding collateral generally moves the threshold farther away; removing it generally moves the threshold closer, subject to venue restrictions.
- Position-size changes: Increasing quantity changes notional value and can move the position into another maintenance tier.
- Other cross-margin positions: Their realized and unrealized results alter the equity available to support the account.
- Risk-tier updates: Exchanges can revise maximum leverage, maintenance rates, and maintenance amounts for named contracts. Binance’s September 25, 2026 margin-tier announcement states that updated parameters affect existing positions.
- Hedge-mode treatment: Whether long and short legs are netted, treated independently, or partially offset is defined by the venue.
For these reasons, record the contract, margin mode, position notional, and the date when evaluating a displayed liquidation price. A historical tier table can be obsolete even if the symbol has not changed.
How to estimate your own liquidation risk
You can perform a reasonableness check without pretending to reproduce the exchange’s full engine. The objective is to identify the inputs and see whether a proposed trade has enough buffer, then rely on the venue’s live calculator for the final number.
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- Identify the contract and mark-price source. Confirm the exact perpetual symbol, quote asset, and mark-price reference used by the venue.
- Calculate notional value. Multiply quantity by the current mark price, using the contract’s unit convention.
- Find the applicable risk tier. Read the current contract schedule for the notional range, maximum leverage, maintenance rate, and maintenance amount.
- Calculate opening margin. For a fixed position value, divide notional by the selected leverage. Treat this as an opening requirement only.
- Identify collateral scope. In isolated mode, use the amount assigned to the position. In cross mode, determine which account balances and other positions are eligible.
- Model adverse price movement. Apply the position’s direction to the mark-price change and include the resulting unrealized loss in equity.
- Compare equity with maintenance margin. Liquidation risk begins when the venue’s equity calculation approaches the tiered maintenance threshold, after any account-specific adjustments.
- Verify against the live display. Check the exchange’s position panel after the order is placed or modified; that value reflects current tiers, mark price, and account state.
A simple “position divided by leverage” calculation cannot produce a liquidation price. It estimates initial margin, while liquidation requires the remaining collateral, unrealized PnL, maintenance tier, and—under cross margin—other account positions.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Venue-specific rules that can change the outcome
Automatic margin replenishment
Bybit documents an auto-margin-replenishment feature for isolated positions. When enabled and triggered, it can transfer available account balance to the isolated position. This may move the liquidation threshold, but it also exposes additional account funds to that position. Do not assume the feature exists, is enabled, or works the same way on another venue.
Hedge mode
Hedge mode can hold long and short legs simultaneously. Bybit states that, in cross mode, it first closes fully hedged positions at mark price to release margin and may continue with partially hedged positions if account risk remains unresolved. That is a Bybit procedure, not a general rule. Before relying on a hedge, check whether the venue nets the legs, assigns margin separately, and how it handles liquidation priority.
Contract and collateral eligibility
Cross margin does not necessarily mean every asset in the account is usable. Exchanges can restrict collateral by asset, haircut its value, or apply portfolio rules. The relevant question is not “How much is my account worth?” but “Which balance does this contract’s risk engine recognize right now?”
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- Confirm the current maximum leverage for your intended notional tier rather than relying on the selector’s headline value.
- Record the maintenance rate and maintenance amount for that tier, including the date checked.
- Choose isolated or cross margin deliberately; do not leave the account mode to an unfamiliar default.
- Check whether the venue uses mark price for liquidation and where that mark price is displayed.
- Leave a buffer below the displayed liquidation price instead of treating it as an acceptable stop-loss level.
- Understand whether adding margin, reducing size, or closing another position will alter the calculation.
- Review liquidation, hedge-mode, and auto-replenishment procedures in the venue’s current documentation.
A stop order is not the same as a liquidation guarantee: execution price, mark price, order-book liquidity, and venue rules can differ. Risk controls should be placed well before the liquidation threshold, with position size chosen so an adverse move does not consume essential account funds.
Common mistakes and how to correct them
“Higher leverage means a smaller loss”
Higher leverage reduces the initial margin reserved for a fixed notional position. It does not reduce the dollar loss from a given adverse move. Correct the mistake by comparing positions at the same notional size and calculating the PnL on that full notional.
“Liquidation happens after losing the original deposit”
Liquidation is tied to maintenance margin and account equity. It can occur before the original isolated margin is fully lost, or involve additional cross-margin collateral. Use the maintenance threshold and live equity display rather than a deposit-percentage rule.
“The last traded price is the liquidation trigger”
Venues generally use a mark price for the risk calculation. A chart’s last price can differ from the mark price that controls liquidation. Monitor the mark-price field and its methodology.
“A published tier table is permanent”
Tier limits and maintenance parameters can be revised and can affect existing positions. Check the current contract schedule and the date of the update before using any formula or screenshot.
“Cross margin is automatically safer”
Cross margin can provide more collateral, but it links positions to a shared risk pool. A profitable trade may support a losing one, while a losing trade can consume funds intended for the rest of the account. Select the mode based on the collateral you are willing to expose.
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| Question | Why it matters |
|---|---|
| Which mark price controls liquidation? | It determines the price input that triggers the maintenance test. |
| Is margin isolated or cross? | It determines whether the calculation is limited to assigned funds or can draw on eligible account collateral. |
| What is the maximum leverage at this notional? | Exposure-sensitive tiers can lower the permitted leverage as size increases. |
| What are the maintenance rate and amount? | They determine the collateral threshold and can differ by tier and contract. |
| How are hedge-mode legs handled? | Independent, netted, and partially hedged positions can produce different margin needs and liquidation paths. |
| What happens during liquidation? | Closure priority, margin replenishment, and account-risk procedures affect the final outcome. |
Bottom line for managing leverage
Use leverage to describe how much notional exposure is supported by initial margin, not as a measure of how much risk disappears. Calculate opening margin with the position-value formula, then evaluate survival with the maintenance-margin tier, mark price, collateral scope, and unrealized PnL. Isolated margin limits the balance assigned to a position; cross margin connects that position to eligible account collateral and other trades. Because exchanges can change tiers and liquidation procedures, the only dependable liquidation figure is the current, contract-specific value shown by the venue under your actual account mode.
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