OBJECTIVES: In Hungary there are 10 institutes doing in vitro fertilization (IVF). The aim of the study was perform a data analyzis of the efficiency in an eleven-year period of Hungary involving all of the institutes’ data. METHODS: The database of the Hungarian National Health Insurance Fund Administration (NHIFA), the only health care financing agency in Hungary, was taken for the study. The analysis covers an 11 years period between 2000 to 2010. IVF success rate was defined as the proportion of number of live births and the number of IVF treatments. RESULTS: A total of 71,634 IVF treatments were done between 2000 and 2011 in the 10 institutes. 50 % of the IVF treatments were done from the age of 30 to 36. The total number of live births was 25,468. The number of single deliveries was 21,400 (84 %), twins 3779 (14.8 %), triplet 284 (1.1 %) and quadruplet 5 (0.02 %). The overall 11 year IVF success rate was 35.6 %. The success rate showed significant differences among IVF centers in a range of 31-49 %. The two largest IVF centres had a market share of 60.9 % and their success rate was 38.4 % and 34.3 % respectively. The highest efficiency was at the age of 34 (43.1 % birth rate). CONCLUSIONS: The mean of the IVF efficiency was 35.6 % in Hungary in the last 11 years. The best result was in the group of the patient at the age of 30-36. The efficiency could be increased if the selection of the patients were defined more precisely.