Why is my perpetual futures margin balance lower than my wallet balance?

01 November 2026

Your margin balance is lower than your wallet balance because the two figures measure different things: the wallet balance is your total account equity, while the margin balance is the portion of that equity currently committed as collateral for open positions, plus or minus unrealized gains and losses, funding payments, and fees. The gap between them is not an error - it is the accounting of your active risk.

The core distinction: wallet balance vs. margin balance

On a perpetual futures platform, your wallet balance is the sum of all funds you have deposited or withdrawn, adjusted for realized profits and losses, and any transfers between your spot and futures wallets. It is your "settled" money - cash you could withdraw if all positions were closed this instant.

Your margin balance is the wallet balance plus the unrealized profit or loss on every open position, plus any pending funding payments, minus any open order margins. It is a "live" number that moves with the market. When you open a position, the platform locks a portion of your wallet balance as margin. That locked amount is no longer counted as free, but it remains part of your margin balance.

So the first reason your margin balance appears lower: you have open positions. The margin balance reflects the current value of those positions, which includes unrealized losses or gains. If your positions are underwater, your margin balance drops below your wallet balance. If they are in profit, it can rise above it.

Where the difference actually comes from

Let's break down the specific components that create the gap.

1. Initial Margin Locked: When you open a leveraged position, the exchange requires a minimum percentage of the position's notional value as collateral. This is your initial margin. It is deducted from your available balance but remains part of your margin balance. If your wallet balance is $10,000 and you open a position requiring $2,000 in initial margin, your margin balance is still $10,000 (assuming no other changes), but your available balance drops to $8,000.

2. Unrealized PnL: This is the biggest mover. Your margin balance includes the floating profit or loss on your open positions. If you bought a perpetual at $50,000 and the mark price drops to $49,000, your unrealized loss of $1,000 is subtracted from your margin balance. Your wallet balance does not reflect this until you close the position and realize the loss.

3. Funding Payments: Perpetual futures settle funding periodically - typically every eight hours, though some exchanges use longer intervals. If the funding rate is positive and you are long, you pay the short side. The payment is deducted from your margin balance immediately. If you are on the receiving side, it is credited. These payments are small per interval but accumulate, and they apply to your position's notional value, not just your margin. A series of negative funding payments will drag your margin balance below your wallet balance even if the price is flat.

4. Trading Fees: Every open and close incurs a fee, usually a small percentage of the notional value. Opening a position triggers a taker or maker fee that is deducted from your margin balance. Closing does the same. If you have been active, these fees add up and explain part of the gap.

5. Liquidation Fees and Insurance Contributions: If your position gets liquidated, the exchange charges a liquidation fee and may divert a portion of your remaining margin to the insurance fund. This hits your margin balance hard, but your wallet balance may already have been reduced by the loss that triggered the liquidation.

6. Transfers and Withdrawals: If you transferred funds from your futures wallet to your spot wallet, or withdrew cash, your wallet balance drops immediately. Your margin balance follows, but if you have open positions, the allocation between free and locked margin shifts. You might see a lower margin balance because the position now represents a larger share of your total equity.

A Step-by-Step Walkthrough

Imagine you deposit $5,000 into a perpetual futures exchange. Your wallet balance is $5,000. Your margin balance is also $5,000 because you have no positions.

You open a long position with 5x leverage on Bitcoin at $30,000. The notional value is $25,000. Your initial margin requirement is 20%, so $5,000 is locked. Your wallet balance stays $5,000. Your margin balance stays $5,000, but your available margin is now $0.

The price moves to $29,500. Your unrealized loss is $25,000 * (1 - 29,500/30,000) = $416.67. Your margin balance drops to $4,583.33. Your wallet balance remains $5,000 because the loss is unrealized.

Funding is due. The rate is +0.01% for longs. You pay $25,000 * 0.0001 = $2.50. Your margin balance falls to $4,580.83. Your wallet balance still shows $5,000.

You close the position. The realized loss is $416.67 plus the $2.50 funding plus a taker fee of, say, 0.05% of $25,000 = $12.50. Total deduction: $431.67. Your wallet balance becomes $4,568.33. Your margin balance, now with no open positions, equals your wallet balance again.

Notice the path: during the trade, the margin balance was the live number, tracking every tick. The wallet balance was a lagging indicator, only updating at close.

When the Gap Signals a Problem

A lower margin balance is not inherently bad - it is the normal state during a losing trade. But it becomes a problem in two situations.

First, if your margin balance falls to the maintenance margin level, you face liquidation. The exchange will force-close your position to prevent the loss from exceeding your collateral. Your wallet balance will take the hit, and the gap closes abruptly.

Second, if you have multiple positions on cross margin, a loss in one position draws from your entire margin balance. Your wallet balance might be healthy, but your margin balance could be near zero, triggering a full account liquidation. This is why monitoring margin balance, not wallet balance, matters when you have open positions.

Why the platform displays both

Exchanges show both numbers for clarity. The wallet balance tells you what you have actually earned or lost on closed trades. The margin balance tells you what you have right now, including all open risk. If you only looked at the wallet balance, you would not see an unrealized loss approaching your liquidation threshold until it was too late.

The margin balance is the number that determines your ability to open new positions, pay funding, and avoid forced liquidation. The wallet balance is what you walk away with if you close everything and pay all fees.

Practical Checks

If the gap seems unexpectedly large, verify the following:

• Open orders: Limit orders that are not filled still reserve a small amount of margin for potential fees. These reduce your available balance but not your margin balance.
• Funding timing: Check the last funding timestamp. A pending payment can cause a temporary discrepancy.
• Unrealized PnL accuracy: Compare the mark price used by the exchange to the last traded price. Exchanges use mark price to prevent manipulation, so your margin balance may move even if the traded price is flat.
• Withdrawal locks: If you have a withdrawal pending, the funds are removed from your wallet balance immediately but may still show in your margin balance for a short period.

The honest answer is that the margin balance is the real-time truth of your trading account. The wallet balance is a historical record. They converge only when you have no open positions, no pending funding, and no unsettled fees. As long as you are trading perpetuals, the gap is not a bug - it is the system working as designed.

Back to perpetuals