The paper focuses on the development of the non-accelerating inflation rate of unemployment in the Czech Republic according to the methodology of the Czech Statistical Office and the Ministry of Labour and Social Affairs. Using an econometric model and own calculations, this paper analyses the non-accelerating inflation rate of unemployment from the establishment of the Czech Republic to the present and examines both how total unemployment manifests itself in the national economy and between the sexes, as well as how it changed during economic recessions and booms. Based on this analysis, it predicts future developments on the labour market in the near future.