7. Is there a ban on anonymous donations to political parties?

Ley 6167/2018
Art. 282. En la recaudación de fondos destinados a la campaña electoral le está absolutamente prohibido a los partidos, movimientos políticos, alianzas y concertaciones:… d) recibir contribuciones o donaciones anónimas, salvo aquellas que surjan de actividades proselitistas lícitas de carácter masivo y naturaleza eventual que desarrolle el partido político, con el fin de obtener ingresos para el financiamiento de campañas electorales, siempre que los montos obtenidos no superen en una misma campaña electoral al equivalente a diez mil jornales mínimos para actividades diversas no especificadas;

Ley 6501/2020
Art. 68.    Los partidos, movimientos políticos, alianzas y concertaciones electorales, y los movimientos internos de éstos, no podrán aceptar o recibir directa o indirectamente, en forma monetaria o no monetaria:..
e)    Contribuciones o donaciones anónimas"

Source: Article 282, Ley Nº 6167/2018.
Article 68, Ley Nº 6501/2020.          

Unnoficial traslation: Law No. 6167/2018
Article 282. In the raising of funds destined for the electoral campaign, it is absolutely prohibited for political parties, political movements, alliances and coalitions to: … (d) receive anonymous contributions or donations, except those arising from lawful proselytizing activities of a mass nature and occasional character carried out by the political party for the purpose of obtaining income to finance electoral campaigns, provided that the amounts obtained do not, in a single electoral campaign, exceed the equivalent of ten thousand minimum daily wages for unspecified miscellaneous activities;

Law No. 6501/2020
Article 68. Political parties, political movements, electoral alliances and coalitions, and their internal movements, may not accept or receive, directly or indirectly, whether in monetary or non-monetary form: ..
(e) anonymous contributions or donations.
Source: Article 282, Law No. 6167/2018.
Article 68, Law No. 6501/2020

Anonymous donations to parties are prohibited both during election periods and outside them.