Concessions are an important legal institute por the transfer of the use of common good to economic, financial and purposes of providing special services. This legal relationskip tegulated by the contract is of great importance for the Republic of Croatia. The very emergence of concessions dates back to the distant past, wich results in the complexity of the laws govering this legal institution. It is extremly important to legally protect the common good, and if it is a renewable source of income, the legislation must be clear, strict and without deviations. Iti s really interesting to follow concessions trought history, the way eople from the past have developed this legal institution is fascinanting. Given that the conditionas and circumstances have changed over time. I based on the current law because it is currnetly legally valid. Concessions are of exceptional financial importance for the Republic of Croatia, whereby it does not lose right to the ceded good, not does the concessionarie exercise any real and permament right to the ceded good. Without losing the right, the Republic of Croatia earns a really large income, and he transferred good can be taken away from the concessionaire at any time. This is possible only for legally precribed reasons.