EN
The article describes a crisis of the State Treasury of Poland that occurred in the 1660s and 1670s. The State’s revenues and expenditures are discussed, as well as institutional problems of the Polish Republic, such as: decentralization of the fiscal apparatus and the State’s fiscal planning. The study presents the background of the introduction of: general poll and excise taxes. Also, an attempt is made to point out the causes of the economic crisis in the Treasury.