27. Are there provisions requiring donations to go through the banking system?

Law on the financing, and control of financing, of political campaigns (2004, last amended 2019), Articles 10(5) & 11(2)

Cash donations of natural persons that exceed EUR 290 must be donated only by bank transfer. Cash donations of natural persons for the political campaign received not by bank transfer shall be transferred by the political campaign treasurer to the political campaign account not later than the next day after receipt of the donation.

Small donations (not exceeding EUR 12) to independent political campaign participants may be donated by phone, internet, bank transfer or other means, allowing the controlling authorities of financing of political campaigns to identify the donor.