Sheep numbers in the Czech Republic (CR) fell from almost 430,000 in 1990, to 84,000 in 2000 (80% reduction). According to the of?cial statistics, the number of sheep in the CR was almost 116,000 in 2004, when the CR joined the EU and the new support system was implemented. Simulations of incomes per hectare of grasslands used by sheep farmers in mountains, other LFAs and lowlands, were used for comparison between former and new support regimes. Different stocking densities were considered in the simulations. Under the new support regime relatively more money was paid on land and less directly as ewe premium in the majority of cases considered.