Subject and purpose of work: The subject matter and purpose of the publication is presentation of the significance of hotel consortia as a factor which optimizes transaction costs. Within the article a brief essence and origins of the concept of transaction cost, as well as evaluation of views on it have been presented. An attempt was made to divide transaction costs. Within the publication determinants of transaction costs have been presented and the conditions concerning transactions have been described. Within the article forms of conduct of hotel business have been outlined. Publication contains characteristics of hotel consortia, their rankings and places on the hotel market. The article reveals the role of forms of cooperation as a tool in modifying transaction costs. An advantage of consortia in managing transaction costs in relation to other forms of conduct of business activity in the hotel business. Materials and methods: Research methods consisted of factual analysis of transaction costs based on available data applied as well as of an attempt to forecast their development in the future. Materials on the basis of which the publication was created is the available subject literature as well as netographic information. Results: Results of research indicate clearly that hotel consortia contribute to limiting of costs of functioning of hotel objects. Conclusions: Show that hotel consortia constitute a chance for independent entrepreneurs competing against large hotel chains.