Between 1957 and 1962, Hungary concluded seven agreements with its socialist neighbors. There are two basic types of agreements: the agreement between Hungary and Russia is in force with regard to Ukraine and Russia. Hungary has concluded proportional burden-sharing agreements with Yugoslavia, Poland, Czechoslovakia and Bulgaria. On the basis of these agreements, the acquired right in the different countries is added together and the theoretical amount of the pension is based on the total duration of employment acquired in both countries, the parties pay only the part proportional to the total eligibility of the country under the legislation in force. One of the common features of social security agreements is that they are no longer based on compulsory burden-sharing. Therefore, in case of independent Hungarian eligibility, it is not necessary to apply the additional rule. What is new is that several agreements make it possible to take account of the duration of employment acquired in so-called third countries, for example the agreements with Canada, Montenegro or Serbia. Only the agreement between Hungary and Yugoslavia is still in force for Kosovo. The agreement between Hungary and Romania and the agreement between Hungary and the Soviet Union are based on the geographical principle, which means that social security benefits are paid by the country of residence at the time of application. As far as pensions are concerned, this means that the rights acquired in one of the two countries are considered by the other country as a right acquired in its territory, the pension being always determined by a contracting country. The amount of the pension paid in Hungary depends only on the income received in Hungary, unless it is a reduction in the taking into account of the average wage of work.
– those based on the proportional distribution of burdens. .