"The electoral campaign is financed by:
a) Contributions made by the citizens and the political parties or coalitions of parties.
b) Voluntary contributions from national or foreign citizens.
c) Products resulted from the electoral campaign.
d) Contributions from national or foreign friendly party’s.
e) Contributions from national or international non governmental organizations."
(Article 37(1), Electoral Law, no 12/2014 of 23 April 2014, amending Law no 8/2013 of 27 February 2013).