When I traveled on Taca in Sept, the dept tax was included! Hmmmm... may be an airport worker thing...wouldn't be the first time. I remember one time when I had checked in and they gave me my tickets & boarding pass back, they had given me all the departure tax $$ for the whole day. I didn't even realize it till they paged me and asked for my tickets back - thousand some $$ in cash in the airline envelope!