Post Only Orders Guide
A practical guide to post-only behavior and why it matters for fee-sensitive execution.
Why post only matters
Binance Academy explains that a normal limit order does not guarantee maker status. If the limit is immediately marketable, it can still fill as a taker order.
Post-only behavior solves that problem by refusing to execute immediately. It ensures the order rests on the book first or is rejected.
When traders use it
Post only is helpful for traders who care deeply about staying on the maker side for cost control or rebate logic. It is especially relevant for systematic strategies and high-frequency execution plans.
It can also help discretionary traders avoid accidental taker fees when clicking quickly in fast markets.
Main trade-off
The trade-off is missed fills. A post-only order protects maker behavior, but it can fail to execute if the market moves away or if the chosen price is too passive.
That means the user must balance fee savings against fill probability.
Best practice
Use post only when maker status is part of the plan, not as a reflex on every trade. For risk exits and urgent entries, immediate execution may still matter more than fee savings.
Always verify the exact order settings on the platform version you use, because interface details can change.
Frequently asked questions
Does a normal limit order guarantee maker fees?
No. It can still be taker if it matches immediately against resting orders.
What does post only do?
It prevents the order from executing immediately as taker. The order rests on the book or gets rejected.
Should every trade use post only?
No. It is best for fee-sensitive execution, not for situations where immediate execution is more important.
Related guides
Use the pages below to go deeper into spot fees, futures fees, BNB deductions, VIP tiers, post-only execution, and simple fee estimation.
