Perpetual Futures Funding Rates: Who Pays, Who Gets Paid, and When

What a perpetual futures funding payment does

A perpetual futures contract has no expiry date to pull its price toward the underlying market at settlement. Exchanges use a periodic funding mechanism to encourage the contract price to trade closer to a reference spot or index price. Funding is generally exchanged between traders holding opposite positions. It is separate from the trading fee charged when an order is filled, although both affect the cost of holding a position.

The sign of the funding rate tells you which side pays. The exact timing, calculation base, and settlement process depend on the venue and contract. A rate shown on one exchange should not be treated as a universal price or schedule for the same asset elsewhere.

Who pays whom when the rate is positive or negative?

This is the usual convention described in the official rules of major venues such as Binance Futures and Bybit. Funding is not automatically a payment to the exchange: Binance says funding payments are transferred between traders holding opposing positions, and Bybit describes its payments as exchanged between long and short position holders.

A positive rate often appears when perpetuals trade at a premium to their reference market; a negative rate can appear when they trade at a discount. The rate is a mechanism and a market signal, not a promise that the contract will converge immediately or that either side will profit overall.

When is the payment charged?

On venues using scheduled funding, the exchange applies the payment at a funding timestamp. You generally need to hold an open position when the venue processes that settlement to pay or receive it. Opening a position shortly before the timestamp can expose you to the full settlement for that event even if you held it for only a short time. Closing beforehand may mean you are not included, but the precise processing cutoff and edge cases are exchange-specific.

Do not assume every perpetual settles every eight hours. Binance’s documentation gives eight hours as the default for many USDⓈ-M contracts but says intervals can be adjusted, including to more frequent schedules. Bybit says each trading pair may have its own interval and that some contracts can switch to hourly settlement under specified conditions. Check the contract’s live details and the next funding countdown rather than relying on a remembered schedule.

There is also a different model: Deribit’s official Funding Specifications explain that funding is calculated and paid or received continuously, while the rate is expressed in an eight-hour equivalent for readability. This is a practical distinction: a scheduled venue focuses the transfer at specific settlement times; a continuous model accrues funding through the holding period. Check the actual venue rules before comparing rates or planning an entry or exit around a timestamp.

How much can a funding payment be?

For a common linear contract, a simplified calculation is:

Funding payment = position value × funding rate

Suppose a hypothetical USDT-margined position has a $20,000 notional value at settlement and the applicable rate is +0.01%. The funding amount is $2. A long would pay that amount and an equivalent short would receive it, subject to the contract’s rules, rounding, and processing. If the rate were −0.01%, the payment direction would reverse.

The funding amount is usually based on position value, not just the margin you posted. With the same notional position, changing leverage does not by itself change the formula’s dollar notional; it can, however, make a given funding payment larger relative to your margin balance. A larger position generally means a larger payment or receipt. For inverse contracts, the exchange may express position value and payment in the underlying coin using a different formula, so do not copy a linear-contract calculation without checking the instrument specification.

Funding can also affect liquidation risk. Bybit says that if the available balance cannot cover a payment, it may be deducted from position initial margin, which can move liquidation price closer in isolated margin mode. Binance likewise notes that funding may come from position margin when the futures balance is insufficient. Receiving funding does not cancel the market risk of the position.

What should you compare before holding through a funding time?

No choice is best for every trader. A short-term trader who will exit soon may care most about the next settlement time and live rate. A longer-term holder should compare funding history over a relevant period, while recognizing that past payments do not establish future rates. A trader comparing exchanges should include trading fees, spread, margin rules, and contract liquidity instead of selecting only the venue with the lowest displayed funding rate.

Why the displayed rate can be misleading

The live number may be an estimate for the upcoming funding event, not the final rate already charged. Bybit’s official funding-rate explanation says its displayed rate can update every minute until the funding timestamp. It describes the rate calculation as involving interest and a premium index, with limits that can change in volatile markets. Other venues use their own formulas and caps. The exact number, interval, and inputs can vary by contract and over time.

A per-interval rate is not automatically an annual borrowing rate. Multiplying it by a number of periods assumes the rate and interval remain unchanged; in live markets neither assumption is assured. For comparison, calculate the actual historical funding debits and credits for the position size and dates you care about, and keep them separate from trading fees and realized price profit or loss.

A practical check before the settlement

• Confirm the exact exchange, contract symbol, and whether the contract is linear or inverse.
• Check the next funding timestamp, current interval, and current or predicted rate in the venue’s contract data.
• Confirm the payment direction from the sign: positive usually means longs pay shorts; negative usually means shorts pay longs.
• Estimate the amount using the applicable position-value formula and your position size at settlement.
• Compare the potential funding amount with likely trading costs, available margin, and your reason for holding the position.
• Recheck the live rate and schedule close to settlement; dynamic changes and processing windows can make an old screenshot or schedule stale.

For example, Bybit says settlement can take several seconds to process and warns that opening or closing within five seconds before or after the funding time does not guarantee whether a position will be included. That is a venue-specific warning, not a universal cutoff. If avoiding one payment is important, use the exchange’s current rules and do not rely on last-second order timing.

The useful distinction

Funding answers two questions: which side transfers value, and when the venue applies that transfer. The rate sign gives the typical payer and receiver. The contract rules tell you whether funding is charged at scheduled intervals or continuously, how the rate is finalized, what position value is used, and how settlement affects margin. Check those terms for the exact contract each time they matter. This gives a more useful cost comparison than treating “funding rate” as a universal fee or assuming a familiar clock applies everywhere.