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

Article 7 'Scheme of singular donations- 1 - Donations of pecuniary nature made by natural persons identified are subject to the annual limit of 25 times the value of the minimum wage per donor and are mandatorily qualified by check or bank transfer.
2 - Donations of a pecuniary nature must be deposited in bank accounts exclusively destined to this effect and in which only deposits that have this origin can be made.' 

Source CAPÍTULO II( Funding of political parties) Decree of the Assembly of the Republic No. 194 / XIII: Political Funding -Alteration to the Law approved Friday, March 9, 2018 Series II-A - Number 82