The provision, which allows the use of currency clause in the Republic of Croatia is introduced in the Law on Obligations in 1994 with the purpose to realize the principle of equal value of performances, in order to protect creditors from the depreciation of the national currency. At the same time no limitations were prescribed in the application of the currency clause, which can, in the different circumstances, lead to a disproportion in the rights and obligations of the parties, on the damage of the debtor. This paper will analyze the economic, social and legal reasons for the introduction of the foreign currency clause in Law, and the importance of legal rules of business with moral content as the limitations of rights based on currency...