This article attempts to assess the impact of import price index on prices of goods and services (total CPI) in Poland and the producer price in the domestic market (domestic PPI). Based on monthly data, dependences were examined according to both long-term (price analysis, using the method co-integrative) and short-term (monthly analysis of price dynamics, using a vector error correction model). The study shows that both producer prices and the consumer react with a considerable delay to changes in import prices. Long-term effect of elasticity of import prices on producer prices is more than double than on consumer price and amounted to approximately 0,5. Moreover, for both measures, the long-term impact of domestic prices was stronger than in the short term.