@Todd82 You should be paying the taxes. AirBnB ONLY pays the State of Texas 6%. How long have you been running on AirBnB? I would immediately pay January thru July 2018. Your going to get fined. Hopefully they will cut you some slack because of you thinking AirBnB was paying them all along. I would bring them in person and see about what to do about previous years. I can't find a date of when this tax started so it's probably been in place a long time.
Go to Progress on your dashboard, then Earnings, scroll down the page to Transaction history and click on that. On the righthand side of the screen will be a green Gross Earnings click on that. Print out each month and file in the form from the link I attached below. If you have any issues filing out the form let me know. Attached the AirBnB monthly Gross Earning to each month and makes copies for yourself. Write a seperate check for each month.
https://www.flower-mound.com/DocumentCenter/View/11802/Hotel-Occupancy-Tax-Report--fillable-report?b...
https://www.flower-mound.com/1600/Hotel-Occupancy-Tax