50. Do third parties have to report on election campaign finances?

"(2) Within 30 working days after polling day, the media service providers, the sociological and advertising agencies, as well as the public relations agencies, shall present to the Bulgarian National Audit Office, on hard copy and on soft copy, information on the services provided to the parties, coalitions and nomination committees. The information shall be provided in a standard form endorsed by the Bulgarian National Audit Office and shall be published on the Internet site thereof."

Source: Article 172 (2), The Election Code, 2014