Time in force and post-only

Обновлено 14 августа 2026 г.

How long an order stays alive, and how to guarantee you pay the maker fee.

Time in force decides what happens to the part of a limit order that cannot fill immediately.

  • Good till cancelled rests on the book until it is filled or you cancel it.
  • Good till date rests until it is filled, you cancel it, or the expiry you set is reached.
  • Immediate or cancel fills whatever it can against the book right now; any unfilled remainder is cancelled.
  • Fill or kill fills completely and immediately, or is cancelled entirely.

Post-only

Post-only places the order only if it can rest on the book. If it would fill immediately — which would make you the taker — it is rejected instead. Use it when you want the maker fee and would rather not trade at all than pay the taker fee.