LTA Central/ International Tours of Houston has been in business since 1974. For home based travel agents looking to join, there is a $175 one-time start up fee per agent. We also have a $100 annual renewal fee that is refundable if the home based agent has earned more than $600 in commissions during the previous year with the company. Errors and Omissions (E&O) insurance is not included in the program but can be added for an additional $100.