Shares of the heirs in the estate are determined by the court in the decision on the confirmation of the acquisition of the inheritance or by a notary public in the inheritance certificate.

On the other hand, the shares of the spouses in the joint property are, in principle, equal. However, for important reasons, each of the spouses may require that the determination of shares in joint property take into account the extent to which each of them contributed to the creation of that property. The heirs of the spouse may make such a request only if the testator has brought an action for annulment of the marriage or for divorce or for a separation decision. When assessing the extent to which each spouse contributed to the creation of joint property, the amount of personal work involved raising children and in a common household.