18. Is there a limit on the amount a donor can contribute to a candidate?

Article 10, the resolution of the high independent instance of elections, 2022-17, 1 July 2022, the rules, procedures, and methods to financing electoral campaign: cash or in-kind financing of the campaign is considered private financing, coming only from natural individuals and non-participants.
Each individual can finance each participant within a limit of thirty times the minimum guaranteed wage in non-agricultural sectors according to the 48-hour system.
Private financing coming from legal entities of all types is prohibited.

Article 77, organic-law 2014-16, 2014, 26th may, of the elections and referendum: the electoral campaign and the referendum campaign shall be financed solely with self-financing and private financing in accordance with what is regulated by this law.

Unofficial English translation.

One individual can finance each participant in the presidential election within a limit of thirty times the minimum guaranteed wage in non-agricultural sectors according to the twenty-four-hour system, while twenty times in the legislative election.