The subject of this paper is the contractual arrangement of property relations of spouses, as an alternative to legal arrangement of property relations. The paper begins with the analysis of the development of contractual arrangement of property relations during the certain periods of Croatian history, starting with the Basic marriage law from 1946., and then the Marriage and family relations law from 1978., and finally the period of the Family Act from 1998. and all later Family Acts until 2015. The paper deals with the arrangement of property relations of spouses within the framework of European private international law trough the Hague convention on the law applicable to marital relations from 1978., then the Green paper on conflict of law in matters concerning to matrimonial property regimes, including the question of jurisdiction and mutual recognition, the council Regulation (EU) 2016/1103 from June 24th 2016 of the enforcement of enhanced cooperation in the area of jurisdiction, the applicable law and the recognition and enforcement of decisions in matters relating to marital regime, and the last, but not the less important the principles of European family law in relation to property relations of spouses. After that is explained the contractual arrangement of property relations of spouses in Croatian Family Act, beginning with the concept of marriage contract, then the subject of a marriage contract and the presumptions for its validity. In the following is shown the comparation of the contractual arrangement of property relations of spouses in some countries of the European legal system. Later on jurisprudence and the problems that appear with the conclusion of marriage contracts are elaborated. Finally, consideration is given to the possibility of establishing a registre of marriage contracts, the legal basis for its establishment, the structure of the registre, the importance of its establishment and the effect of the registration of marriage contract in the relation between spouses and according to third parties.