When the last traded price touches the trigger price, the take profit order will execute immediately as a market order and will incur taker fees upon execution.
Note that, since a market order is created when your trigger price is reached, your order may fill at a lower (in case of a sell) or higher (in case of a buy) price than the trigger price. For markets with high volatility and relatively low liquidity, like cryptocurrency markets, it is possible that your fill price will be significantly lower or higher than your trigger price.
Take profit: Triggers a market order (buy or sell) when the last traded price hits the trigger price you specify.
Trigger price: The price at which the take profit order triggers, specified by you.
The trigger price can be set in terms of absolute price or as a percentage. As with stop orders, take profit orders can also be used to open positions (see examples for illustration). It is important to note that your take profit order is not directly tied to a position (not reduce only) but is an independent order and if you exit a position in an alternate way the take profit must also be manually cancelled.