This paper discusses the idea of the functioning of an independent fiscal institution (IFI) in Poland according to the EU’s requirements. The first section provides an overall description of the institution. Section 2 provides theoretical insights into possible institutional models of IFIs which are established in the EU: the purpose is to discern what lessons can be learnt from IFI models in other EU countries. Section 3 discusses the legal basis of and standards in this area of public-sector control; section 4 addresses how that adoption would look in Poland. The objective of the article is to determine what the challenges in the Polish state fiscal policy are.