You’re about to open a Binance Futures trade, and you don’t want to pay the taker fee. Or maybe you’re worried about slipping into a bad fill. The fix is simpler than you think: a post-only order. This walkthrough shows you exactly how to set one up, why it matters, and how to avoid the common mistakes that cost traders real money.
Who This Is For
This guide is for Binance Futures traders who want to reduce fees, avoid slippage, and add liquidity to the order book — especially scalpers, swing traders, and anyone using limit orders.
What You’ll Need
- A verified Binance account with futures trading enabled
- At least 10 USDT in your futures wallet (for the minimum order size)
- Basic understanding of limit orders vs. market orders
- Access to Binance Futures on web or mobile app (version 2.45 or newer)
- Patience — post-only orders fill only when you’re the maker, not the taker
Step 1: Open Binance Futures and Select a Trading Pair
Log into your Binance account and navigate to the Futures section. Pick any USDT-margined pair — BTCUSDT, ETHUSDT, or SOLUSDT all work. The post-only feature is available on both isolated and cross margin modes, so no need to switch.
Make sure you’re on the “Limit” order type tab. Post-only orders are a subtype of limit orders. If you’re on “Market” or “Stop Limit,” the toggle won’t appear.
Step 2: Enter Your Order Price and Size
In the order entry box, set your price. For a post-only order to work, your price must be on the opposite side of the current spread. That means:
- For a buy order: set a price below the current best ask (the lowest sell order).
- For a sell order: set a price above the current best bid (the highest buy order).
Enter the quantity in contracts (1 contract = 1 USD for most pairs). If you’re unsure, start with 10–20 contracts to test the feature.
Step 3: Enable the Post-Only Toggle
Look for a small switch or checkbox labeled “Post Only” right next to the “Reduce Only” and “IOC” options. On the web version, it’s directly below the price and quantity fields. On mobile, tap the three dots (more options) to reveal it.
Toggle it on. The order entry box should now show a green badge or highlight. That means your order will only post to the order book — it will never execute as a taker and eat liquidity.
Step 4: Review and Confirm the Order
Double-check your price and size. If your price is too close to the market spread, Binance will show a warning: “Order will execute immediately as taker. Post-Only will not apply.” That means your order would eat liquidity and you’d pay the taker fee. Adjust your price further from the mid-market until the warning disappears.
Hit “Buy/Long” or “Sell/Short.” The order will sit in the open orders tab until someone matches it. You can cancel it anytime without penalty.
Step 5: Monitor and Adjust for Fills
Post-only orders don’t guarantee a fill. They sit on the order book and wait. If the price moves to your level, your order fills as a maker trade — you pay the 0.02% maker fee instead of the 0.04% taker fee. That’s a 50% discount on fees.
If the market moves away, your order stays pending. You can adjust the price or cancel and re-enter. Some traders set multiple post-only orders at different price levels to catch volatility.
According to Binance’s official fee schedule (updated January 2026), maker fees for VIP 0 users are 0.02%, while taker fees are 0.04% — a difference of $2 per $10,000 traded. For high-volume traders, that adds up fast.
Common Pitfalls
⚠️ Mistake: Setting the price inside the spread. If your buy price is above the best ask or your sell price is below the best bid, the order will execute immediately as a taker. Post-only won’t apply, and you’ll pay the higher fee. Fix: always check the order book spread before entering.
⚠️ Mistake: Forgetting to toggle Post-Only on each new order. Binance doesn’t save the setting across sessions. You have to enable it manually every time. Fix: make it a habit to tap the toggle before hitting confirm.
⚠️ Mistake: Using Post-Only with stop-loss or take-profit orders. Post-only only works with standard limit orders. If you try to combine it with a stop-limit, the feature is greyed out. Fix: use regular limit orders for post-only, and set stop-losses separately.
What Next?
Once you’ve mastered post-only orders, try combining them with iceberg orders to hide your full size from the order book — a common tactic among professional traders.
Risks of Post-Only Orders
Post-only orders are not a profit guarantee. Your order may never fill if the price doesn’t reach your level. In fast-moving markets, you can miss a trade entirely while waiting for a maker fill. Also, post-only orders don’t protect against liquidation — always use proper position sizing and stop-losses. The lower fee is a benefit, but it doesn’t outweigh poor risk management.
Sources
- Binance Support — What Is a Post-Only Order?
- Binance Futures Fee Schedule (Official)
- Investopedia — Maker-Taker Fee Model
Key Takeaways
- Post-only orders ensure you’re always the maker, paying the lower 0.02% fee instead of 0.04%.
- Your price must be outside the current spread — buy below best ask, sell above best bid.
- Enable the toggle manually each time; it doesn’t save across sessions.
- Orders may never fill in low-volatility or one-sided markets.
- Post-only only works with standard limit orders, not stop-limits or market orders.
For more on order types and fee optimization, check out our guide on The Core Problem: Why Support Retests Fail and .
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