What Is Slippage in Crypto? Meaning and How to Cut It
Slippage is the gap between the price you expect and the price you get. See a rupee example where a ₹95,000 order costs ₹110 extra, and 7 ways to reduce it.
Slippage in crypto is the difference between the price you expected when you placed an order and the average price you actually got. It happens because a market order fills against whatever buy and sell orders are available at that moment, and if there are not enough coins at the best price, the rest of your order fills at worse prices. Slippage is usually tiny on bitcoin and large on small, thinly traded coins.
Key takeaways
- Slippage = (average fill price minus expected price) divided by expected price, shown as a percentage.
- It comes from thin liquidity, large order size and fast-moving prices.
- Market orders and stop-market orders are exposed to it; limit orders are not, because they never fill worse than your limit.
- On decentralised exchanges you set a "slippage tolerance"; too high invites front-running, too low makes swaps fail.
- Splitting orders, trading liquid pairs and using limit orders are the simplest fixes.
Why slippage happens
An exchange shows you one price, but that price is just the best offer in the order book. Behind it sit other sellers asking a little more, and behind them sellers asking more again. A market buy takes the cheapest coins first and keeps going up the list until it is filled. If your order is bigger than what sits at the top price, you "walk the book" and your average price rises.
Slippage also happens when prices move between the moment you tap buy and the moment the order reaches the exchange. In a sharp rally or crash, that can be a fraction of a second and still cost you money.
A worked example with an order book
Imagine a simplified SOL/INR order book (the numbers are illustrative, near SOL's price of about ₹11,886 on 27 September 2026; the live price is ₹11,341 on the Solana price in INR page):
| Ask price (₹) | SOL available | Cost if you take it all (₹) |
|---|---|---|
| 11,890 | 3 | 35,670 |
| 11,900 | 2 | 23,800 |
| 11,920 | 5 | 59,600 |
You place a market buy for 8 SOL, expecting ₹11,890 each, which would be ₹95,120. The exchange fills you like this:
- 3 SOL at ₹11,890 = ₹35,670
- 2 SOL at ₹11,900 = ₹23,800
- 3 SOL at ₹11,920 = ₹35,760
Total paid: ₹95,230, an average of ₹11,903.75 per SOL. You paid ₹110 more than expected, and the slippage is 13.75 ÷ 11,890, about 0.12%. Had you bought just 3 SOL, slippage would have been zero. Had the book been thinner, it would have been much larger. Fees and 1% TDS on sales come on top of this.
Positive and negative slippage
Slippage is not always bad. If the price moves in your favour between placing and filling, you can get a better price than expected; that is positive slippage. In practice, retail traders notice negative slippage more, because it is most common exactly when markets are moving fast and everyone is rushing in the same direction.
What makes slippage worse
| Factor | Why it matters |
|---|---|
| Low trading volume | Fewer orders in the book, so large orders walk further. |
| Large order size | The bigger the order compared with the depth at the top, the more levels it consumes. |
| Volatility and news | Market makers pull or widen quotes during sharp moves. |
| Quiet hours | Depth can be thinner at some hours and at weekends, although crypto trades 24/7. |
| Stop-market orders | They trigger during fast moves and fill at whatever price is available. |
| Leverage | Slippage on a leveraged position is multiplied against your margin. |
Slippage on decentralised exchanges
On a decentralised exchange (DEX), trades are priced by a liquidity pool rather than an order book. The bigger your trade compared with the pool, the more the price moves against you; this is called price impact. DEX apps let you set a slippage tolerance, such as 0.5% or 1%. If the final price would be worse than that, the swap fails and you lose only the network fee. Setting tolerance very high on a small token can let bots trade ahead of you and push your price to the limit you allowed. Our DeFi explainer covers how pools work.
Seven ways to reduce slippage
- Use limit orders when price matters. They cannot fill worse than your limit. See limit order vs market order.
- Check the order book depth before a big trade. If the top levels are thin, your order will walk the book.
- Split large orders into smaller pieces over minutes or hours.
- Trade liquid pairs. BTC, ETH and USDT pairs on large exchanges have far more depth than new tokens.
- Avoid the first minutes after big news, such as US inflation data or central bank decisions, when books thin out.
- Prefer the busier hours. Our guide to the best time to trade crypto in India shows when volume is typically highest in IST.
- Use a stop-limit instead of a stop-market if you would rather risk not being filled than being filled at a very poor price. The trade-offs are covered in our stop-loss guide.
Slippage and the spread are different
The spread is the gap between the best bid and the best ask at any moment. Even a tiny market order pays half the spread in effect, because it buys at the ask while the "price" people quote is often the midpoint or the last trade. Slippage is the extra cost on top of that when your order is too big for the top level or the price moves. On an illiquid coin you can pay both a wide spread and heavy slippage. If you trade often, both costs add up faster than exchange fees; for choosing a platform, see best crypto trading platforms in India.
FAQ
What is a good slippage percentage in crypto?
On major coins on a large exchange, slippage on a retail-size order is often well under 0.1%. On a DEX, many traders use a tolerance of 0.5% to 1% for common tokens; small tokens may need more, which is itself a warning sign about liquidity.
Does slippage apply to limit orders?
No. A limit order fills only at your price or better. The trade-off is that it may not fill at all.
Why did my swap fail with a slippage error?
The price moved more than your slippage tolerance before the transaction confirmed. You can retry, trade a smaller amount, or raise the tolerance slightly if you accept the extra cost.
Is slippage a fee charged by the exchange?
No. It is a market effect, not a fee. The exchange's trading fee and India's 1% TDS on sales are charged separately.
This article is AI-assisted, educational and general in nature. It is not financial advice and never a guarantee of profit. Every trade is at your own risk on your own exchange. See our risk disclosure and editorial policy.
