Crypto Funding Rates Explained: Who Pays, Why, and What It Costs

Open a perpetual futures screen on almost any large crypto exchange and you will find a small percentage next to a countdown timer. That number is the funding rate, and it quietly decides whether holding a position costs you money or pays you while you wait.

Crypto funding rates look tiny, often a hundredth of a percent. But they are charged on the full size of a leveraged position, not on the margin you put down, so they can add up faster than most new traders expect.

This guide explains what the rate is, who pays whom, how to work out what it costs, and what it can and cannot tell you about the market.

What a funding rate actually is

A traditional futures contract has an expiry date. As that date approaches, the contract price is pulled toward the spot price because the two must meet at settlement.

A perpetual contract, usually shortened to "perp," never expires. Without a settlement date, something else has to keep its price from drifting far away from the underlying asset. That job falls to funding.

BitMEX launched the first perpetual Bitcoin swap, XBTUSD, in May 2016. About a month later it changed the funding calculation to include the premium or discount the swap traded at compared with spot, because the original lending-rate formula was not keeping the price anchored. That basic design is still the template most venues follow.

So the plain meaning of a funding rate in crypto is this: a periodic payment between traders holding long and short positions in the same perpetual contract, sized to nudge the contract's price back toward the spot index.

Who pays whom: positive and negative funding

When the perp trades above the spot index, the rate is positive. Traders who are long pay traders who are short. Holding a long becomes slightly more expensive, and holding a short slightly more rewarding, which encourages the gap to close.

When the perp trades below the index, the rate turns negative. Now shorts pay longs.

Negative funding rates in crypto usually appear when demand to short is unusually strong, for example after a sharp sell-off or when traders are hedging spot holdings they do not want to sell.

On major venues the payment passes directly between traders. Hyperliquid's documentation, for instance, describes funding as purely peer-to-peer, with no fee collected on the payments themselves. The exchange still charges its normal trading fees when you open or close.

How the rate is calculated and when it is charged

Most exchanges build the rate from two pieces. The first is a premium index that measures how far the perp has been trading from the spot price. The second is a fixed interest component, commonly 0.01% per eight hours, which is meant to reflect the different cost of borrowing dollars versus borrowing crypto.

The formula then clamps the gap between those two pieces within a narrow band, typically plus or minus 0.05%. In calm markets, when the premium is small, the rate tends to sit right at that 0.01% baseline.

Timing differs by venue, and it matters. According to Binance's funding rate FAQ, the default interval on its USDⓈ-M perpetuals is every eight hours, at 00:00, 08:00 and 16:00 UTC. You only pay or receive funding if your position is open at that moment.

Since May 2025, Binance can also switch a contract to hourly settlement after a settlement hits the funding cap or floor. Other venues work differently: Hyperliquid pays funding every hour, at one eighth of the computed eight-hour rate, with a cap of 4% per hour.

The practical lesson is to read the interval and countdown for the specific contract you trade rather than assuming every perp settles three times a day.

A worked example of what funding costs

Say you open a long Bitcoin perp with a notional size of $10,000, using $2,000 of margin at 5x leverage. The funding rate is 0.01% per eight hours.

Each settlement costs you 0.01% of $10,000, which is $1. Three settlements a day makes $3. Kept up for a full year, that is about $1,095, or roughly 11% of the position's notional value.

Measured against your $2,000 of margin, though, the same payments come to more than half of the money you actually put in. That is the part people miss.

Now imagine sentiment heats up and funding climbs to 0.05% per eight hours. The cost becomes $5 per settlement, $15 a day and $450 over 30 days, which is 22.5% of your margin in a month, before any price move at all.

Funding also comes out of your account balance. On many venues a smaller balance means less room before liquidation, which ties funding directly to the risks covered in our guide to how stop-loss orders work in crypto.

What funding can tell you about market positioning

Because the rate reflects how hard traders are leaning to one side, many people watch it as a rough gauge of positioning. Aggregators such as CoinGlass collect funding across exchanges so you can compare them in one place.

Persistently high positive funding suggests that a lot of traders are paying up to stay long with leverage. Deeply negative funding suggests crowded shorts. Either situation can make a market more fragile, because crowded leveraged positions can be forced closed quickly.

That fragility is a context clue, not a forecast. Funding can stay elevated for weeks during a strong trend, and it can flip within a single interval. It also differs between exchanges, so one venue's reading is not the whole market.

Pair it with open interest and the spot chart instead of reading it alone. When funding spikes during a fast move, ask whether it changed before, during or after the price did. That is the same discipline we suggest for reading a sell-off without guessing.

Funding and the "basis trade"

Some traders try to collect funding rather than pay it. The classic version buys spot Bitcoin and opens an equal short on the perp. Price moves on the two legs roughly cancel out, and the short collects funding while the rate stays positive.

It sounds like free money, and it is not. The rate can turn negative, so the short starts paying. A sharp rally can push the short leg toward liquidation if it is not well margined, and holding funds on an exchange carries counterparty risk.

Trading fees, spreads and the cost of moving between venues also eat into the return. Professionals who run these strategies manage all of that actively, and the margins can be thin.

Practical habits before you hold a perp position

Check the current rate, the interval and the time to the next settlement before you enter. Look at recent funding history too, since a single snapshot shows only an estimate for the interval in progress.

Work out the cost in dollars on your full notional size, then compare it with your margin, not just the headline percentage. Do the sum for the time you actually expect to hold.

Remember that perpetual futures are leveraged derivatives, and their availability depends on where you live. Many offshore venues do not serve residents of certain countries, so check the rules that apply to you first.

If you want to build these habits without risking real money, the Coinasity paper-trading league lets you practise sizing and timing decisions with virtual cash at live prices. It is a simple way to see how your plan holds up before any fee or funding payment is real.

The short version

Crypto perp funding rates are a balancing mechanism, not a fee the exchange keeps. Positive means longs pay shorts, and negative means shorts pay longs.

The percentage looks small, but it applies to your full leveraged position on every settlement. Read it per contract, cost it against your margin, and treat it as one clue about positioning rather than a signal on its own.