The aim of the paper was to assess the changes in level and structure of services on farms in Poland. The study was based on unpublished statistics, which were collected and processed with the Farm Accountancy Data Network (FADN). The research covered services according to the regions and classes of economic size in 2004–2012. In all the regions under investigation there was an increase in the value of services purchased by farms. The highest value reached services for crop production, and then services for animal production and transport services. An increase in value and share of services for operating activities was observed. The following dependence was noticeable – the larger the farm was, the greater the share of veterinary services in the structure of total services was and the lesser the shares of crop production and transport services were.