# Post-Only

## **Introduction**

A Post-Only order is a type of trading order that is designed to ensure that your order will be added to the order book as a maker order. In other words, it will only be executed if it does not immediately match with an existing order in the opposite direction.

If the execution conditions of a Post-Only order cannot be fulfilled, the order will be fully cancelled. This ensures that your order will always be added to the order book as a maker order, which means you are providing liquidity to the market.

The purpose of a Post-Only order is to encourage traders to add liquidity to the market by placing orders that do not immediately match with existing orders.

## How It Works <a href="#h_d4f1746c4c" id="h_d4f1746c4c"></a>

Post-Only is available on the following order types:

* Limit
* Stop Limit

Post-Only is compatible for use with the following Time-In-Force option:

* Good-Till-Cancelled

By default, the Reduce-Only feature is not enabled for all order types.&#x20;

To enable the Post-Only feature, simply mark the 'Post-Only' checkbox for the desired order type.&#x20;

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