Taxes. There are many questions on taxes to/from MX. When you enter MX you need a passport .NO LONGER NEED AN IMMIGRATION FORM.
You only need a customs form if you are flying into Terminal 2.
When you arrive at the hotel you will be charged an environmental tax which is approximtely $1.2 US per room per night. When leaving your departure tax is included in your ticket. There is a Visitax which almost no one pays as they do not monitor it. It’s up to you if you want to pay it. In two years I have never been asked for it. Visitax