In context of czech membership in the Europen Union we always discuss the question if the acceptance of the euro as official currency is for our country and czech companies beneficial or not. The aim of this thesis is to describe microeconomic benefits of join the euro for company TECHO, a.s. that I have been working for over two years. TECHO, a.s. is an important provider of comprehensive services for the furnishing of commercial interiors in the Czech republic and its products are available on three continents -- Europe, Asia and Africa. Because of this fact is the question of acceptance or non-acceptance of the euro for this company very important and actual. The method of research is the analysis of exchange rates that I apply on economic results of the firm for years 2005-2009. The analysis should answer the question if the acceptance of the euro is for the firm TECHO, a.s. profitable or not.