Revenues come from public funds. State appropriated funds do not include funds whose only source of income, except for interest on a bank account and donations, is a subsidy from the state budget. Income includes, among others, subsidies from the state budget and remnants of funds from previous periods.

• Act of 27 August 2009 on the Public Finance
  Place of publication: (Dz. U. z 2023 r. poz. 1270, z późn. zm.)