13. Is there a ban on donations from any other source?

"(1) Parties and movements shall not accept a gift or other gratuitous fulfillment:

(a) from the state (unless specified otherwise in this act of law), (b) from the institutions receiving contributions from the state budget, (c) from a municipality, a city district, a city district and a region; (d) from a voluntary union of municipalities; (e) from state enterprises and legal entities in which the state or a state enterprise has a stake and legal entities partially managed and supervised by the state; this provision shall not be applied if the interest of the state or a state enterprise does not exceed 10%, (f) from legal entities partially owned by  the county, municipality, city district or municipal district; this provision shall not be applied if the interest held by a municipality does not exceed 10%,(g) from a publicly beneficial company, political institute, (h) from the trust funds, (i) from other legal entities defined by legal regulations, ..."

Source: Article 18(1), Act No. 424/1991_The Law on Association in Political Parties and Political Movements, 1991

Art. 16. "(2) Natural or legal person intending to participate in the election campaign without the knowledge of the respective political party, political movement or coalition standing for election, their candidate or an independent candidate, shall be obliged, before entering the election campaign, to register as a third person at the Office for the Oversight of Financing of Political Parties and Movements (hereinafter referred to as the “Office for Oversight”) established pursuant to law regulating the association in political parties and political movements."

Art. 16e. "(1) For the purpose of this Act, a registered third person shall mean any natural or legal person registered as such in a special register kept by the Office for Oversight.

(2) For the purpose of this Act, the following entities may not become registered third persons: (a) the state and its semi-budgetary organisations, (b) municipality, city district, city borough and region, (c) voluntary associations of municipalities, (d) state enterprises and legal entities with state ownership interest or state enterprise ownership interest, as well as persons to whose management and oversight the state contributes, even as the controlling entity; this rule shall not apply if the ownership interest of state or state enterprise is less than 10 %, (e) e) legal entities with the ownership interest of a region, municipality, city district or city borough, as well as persons to whose management and oversight the region, municipality, city district or city borough contribute, even as the controlling entity; this rule shall not apply if the ownership interest is less than 10 %, (f) publicly beneficial company, political institute, (g) trust funds, (h) other legal person if stipulated by another law, ..."

Source: Articles 16(2) and 16e, Act No. 247/1995 on Elections to the Parliament of the Czech Republic and on the Amendment of Certain Other Laws​, 1995