Property relations between spouses are standardized in Croatian law by the Family Act, which offers spouses a legal and contractual regime. The legal regime, as a rule considere the system of the community of acquired goods. Own property is considered as property that a spouse has at the time of marriage, as well as that which he acquires during the duration of the marriage union on the legal basis of a different employment relationship and in relation to it, the spouse is considered to be the sole owner and thus manages and disposes of it. On the other hand, matrimonial property represents property that the spouses have acquired through work during the duration of the marriage union or that originates from such property, and they manage it as co-owners. Marital property has its own essential characteristics, namely the legal basis, the time of acquisition and the ownership relationship. As for the ownership relationship with regard to the matrimonial property, it is considered that the spouses are co-owners in equal parts. No, there are certain restrictions, that is, although each spouse is considered to have all the powers of the owner in respect of his ideal part of the property, he may exercise the powers of ownership only if he does not do so to the detriment of the other spouse. In the same way that spouses can enter into a marriage contract, they can also agree on assumptions when the marital property will be distributed. We distinguish between judicial and voluntary dissolution, which results in the termination of co-ownership of the marital union, i.e. the spouses become the owners of a certain thing or money. Marital agreement is a legal contract between the bride and groom or spouses on the arrangement of property relations on existing or future property. For the valid marriage contract it is necessary that the assumptions related to the business capacity of the parties are met, then a valid and and consensual expression of will, the permissibility of the content and the form in which the contract itself was concluded, and also it is required to be in written form. Although a marriage contract is concluded between spouses, its effects can be protected against third parties, that is, certain clauses from the contract itself or certain dispositions can have an effect against third parties only if they are entered in land registers or public registers. The establishment of a registry of marriage contracts is advocated, given the numerous advantages it would bring. First of all, it would be legal security, of course for the spouses themselves, that is, the parties as well as interested third parties.