A common question that I hear is whether the visiting tourist must pay airport tax?
There was certainly is an airport tax 5 years ago and it was increased BUT then somewhere it was decided that the Airport tax should be included in the price of the airline ticket.
So the only advice that I can give you is to look carefully at the receipt that you received when you purchased your ticket AND ask the agent who sold it to you AND keep some cash in your back pocket - you can always buy a cup of coffee at an outlet in the airport.
I did then look at Air Asia and their information regarding this;
|*||For most countries, the airport tax has been included in the final total and is to be paid upon booking unless stated otherwise. The airport tax listed here is to be paid at the respective airport before departure.|