Cession or assignment of receivables is one of the Civil Obligations institute, which causes the change on the creditors side, as one of parties involved in debt’s relationship. Therefore, the legal position of the parties in the cession contract is going to be a pivot point of this work, in which will be clearly presented and explained the elements of the given institute, and, as well, analysed legal position of the parties in this special Civil Obligations Act’ contract. Cession or assignment of receivables is regulated by the Civil Obligations Act in Title VI, which provisions extend to 9 articles. By comparing the provisions of the previous 1978 Civil Obligations Act, we do not encounter deviations in the regulation of this institute. The cession itself is not the most common contract in everyday’s life, but it grows astronomically in business practice as one of the forms of bill payment, credit business or any more applicable contract on factoring in the economy. In this graduation thesis Cessium itself will be presented and clarified through Republic of Croatia court’s practice.