7 Steps to Master the Post-Only Order on KuCoin Futures

By Editorial Team · July 2026

If you trade futures on KuCoin and aren’t using the post-only order type, you’re leaving money on the table. This simple tool can save you on fees, help you avoid nasty surprises, and give you more control over your entries. But it’s also easy to misuse if you don’t understand the mechanics. Let’s break down exactly how to use it, what it does, and the traps to avoid.

1. Post-Only Forces You to Add Liquidity, Not Take It

When you place a standard limit order on KuCoin Futures, it can either be a “maker” order (sitting in the order book, waiting to be matched) or a “taker” order (instantly matching an existing order). The post-only flag forces your order to be a maker only. If your order would immediately match against an existing order on the book, KuCoin cancels it instead of executing it.

Why does this matter? Because maker fees are lower than taker fees. On KuCoin Futures, the maker fee is typically 0.02%, while the taker fee is 0.06%. That’s a 0.04% difference per trade. For a trader moving $10,000 in volume, that’s $4 saved per round trip. Over 100 trades, that’s $400 — real money.

So post-only isn’t just a technical checkbox. It’s a fee-saving strategy that directly impacts your bottom line. Every time you use it, you’re effectively paying less to the exchange.

2. It Cancels Instantly If You’d Be a Taker — No Surprise Fills

Here’s the thing: when you place a regular limit order, you might think you’re getting a maker fill, but the market could move in the split second between clicking “submit” and the order hitting the book. Suddenly, your limit order matches an existing order and you get filled as a taker. That means you pay the higher taker fee.

With post-only, that never happens. If your order would execute immediately as a taker, KuCoin rejects it. The order simply doesn’t go through. You get a notification that your order was canceled, and you can adjust your price and try again.

This is a huge advantage for traders who want to stick to a strict fee-saving plan. It removes the ambiguity. You know for a fact that every filled post-only order was a maker order, saving you that 0.04% every single time.

3. It Works Best on High-Liquidity Pairs Like BTC/USDT

Not all futures pairs are created equal. Low-liquidity altcoin pairs often have wide bid-ask spreads and thin order books. If you place a post-only order on a pair like some small-cap altcoin, your limit price might be far from the current market price, and you could wait hours or days for a fill — if it ever happens.

Stick to the majors. BTC/USDT, ETH/USDT, and maybe a few high-volume altcoins like SOL or AVAX. These have deep order books with tight spreads, usually around $0.10 to $0.50 wide on BTC. Your post-only order at a reasonable price will likely get filled within minutes, not hours.

For context, on KuCoin Futures, BTC/USDT often sees over $500 million in daily volume. That liquidity means your orders have a much better chance of being matched quickly. So choose your pairs wisely.

4. You Must Be Willing to Wait for the Market to Come to You

Post-only trading is a passive strategy. You’re not chasing the market. You’re placing an order at a specific price and then waiting. That takes discipline. If you’re the type of trader who needs instant gratification or who constantly adjusts orders, this might not be for you.

But here’s the payoff: by waiting, you often get a better price. Let’s say BTC is at $60,000 and you want to go long. Instead of buying at $60,050 (the current ask), you place a post-only limit order at $59,950. You might wait 10 minutes, but if the market dips, you get filled at a $100 better price and save on fees. That’s a double win.

Of course, there’s a risk: the market might never come to your price. You could miss a move entirely. That’s the trade-off. Post-only works when you have patience and a clear plan.

5. Combine It With Limit Orders for a Set-and-Forget Strategy

One of the best uses of post-only is in a grid trading or limit order ladder. You place multiple post-only limit orders at different price levels above and below the current price. If the market oscillates, your orders get filled one by one, each as a maker trade.

For example, you could place buy orders every $100 below $60,000 and sell orders every $100 above. As the market moves, you accumulate positions at favorable prices. Because each order is post-only, you’re saving on fees with every fill. This is a common strategy among scalpers and range traders.

Just remember to set reasonable price levels. Don’t place an order 5% away from the current price unless you’re okay with it sitting there for days. Use the order book depth to find natural support and resistance levels.

6. Post-Only Fails on Fast-Moving Markets — Be Ready for Instant Cancellations

Here’s the catch: in a volatile market, your post-only order might never get filled. If the price is surging upward and you place a limit buy at $60,000, but the market is already trading at $60,100, your order would be a maker (since it’s below the current price). But if the price drops back to $60,000 in a flash, your order instantly matches and fills as a maker — that’s fine.

But if you place a limit buy at $60,050 when the market is at $60,000, that order would be a taker (it’s above the current bid), so post-only cancels it. In a fast market, this can happen repeatedly. You might try to get in, get canceled, adjust, get canceled again, and miss the move entirely.

So what do you do? If you need to enter quickly, don’t use post-only. Use a market order or a standard limit order. Save post-only for when you have time to wait. It’s a tool, not a cure-all.

This is especially important during major news events. On Fed decision days or Bitcoin halving events, volatility spikes. Post-only orders become nearly useless because the market is moving too fast. Plan accordingly.

7. It’s Critical for Scalping and Rebate Strategies That Rely on Fee Savings

Professional scalpers often operate on razor-thin margins. They might aim for just $5 to $10 profit per trade on a $10,000 position. In that scenario, a 0.04% fee difference is massive — it’s $4. That’s nearly half their target profit. Without post-only, their edge disappears.

Similarly, some exchanges offer rebate programs where you get paid for adding liquidity. KuCoin Futures doesn’t have a formal rebate program for regular users, but the fee savings alone act as a “rebate.” By consistently using post-only, you effectively lower your cost structure.

Think about it this way: if you trade $1 million in volume per month (which isn’t hard for active futures traders), the difference between maker and taker fees is $400. That’s $4,800 per year. Post-only is literally worth thousands of dollars annually to active traders. It’s one of the simplest ways to improve your trading economics without changing your strategy.

Risks and Pitfalls to Watch For

Post-only orders are powerful, but they come with real risks. Here are the main ones to keep in mind.

• Missing trades entirely. If you rely solely on post-only, you might never get filled in a trending market. The price could run away from you while you’re waiting for a maker fill. This is called “missing the boat,” and it’s the most common frustration with post-only. To mitigate this, consider using a mix of post-only and standard limit orders, or set a time limit — if the order isn’t filled after 30 minutes, switch to a market order.
• Accidental order book clogging. If you place many post-only orders at slightly different prices, you might clutter the order book. That’s fine for liquidity, but if you cancel and re-place orders frequently, you could get flagged by the exchange for excessive order activity. Some exchanges penalize high order-to-trade ratios. Keep your order count reasonable.
• Spread widening. In low-liquidity pairs, using post-only can actually widen the spread. If you place a buy order far below the current market, you’re not helping the market — you’re just adding noise. Stick to prices near the current bid/ask to avoid this.

Remember, post-only is not a guarantee of profit. It’s a fee management tool. Use it wisely, and always be ready to adapt to market conditions.

The One Thing to Remember

Post-only orders are a fee-saving tool, not a trading strategy. They work best when you have patience, trade liquid pairs, and understand that cancellations are part of the game. If you can internalize that, you’ll save hundreds or thousands of dollars in fees over your trading career. Just don’t expect them to make you a better trader — they only make you a cheaper one.

Sources & References

• KuCoin Futures Order Types — Official FAQ
• Maker-Taker Fee Model Explained — Investopedia
• Futures Trading Guide for Beginners — CoinDesk

For more on exchange mechanics, check out our guide on <a href="Understanding the LQTY Market Structure“>order types explained and <a href="Understanding WLD USDT Futures Market Structure“>KuCoin futures guide.

— Editorial Team