4. Is there a ban on corporate donations to candidates?

Regulation on Regulating Financial Affairs of Electoral Campaigns of 2019 Presidential Candidates, Art. 6, http://www.iec.org.af/pdf/legalframework/regulation-1398/eng/Campaign%20Finance%20Regulation%202019_Eng.pdf. 

This provision was applied to presidential elections held in 2019.

Article 6: (1) The following persons can make contributions to the campaigns of candidates: a. Afghan citizens inside and outside of the country; and b. Political parties and other non-governmental national legal persons (2) The financial contributions made to the candidates by the persons mentioned in paragraph (1) of this article shall be subject to the following limitations: 1. Up to 200,000 Afghanis by a natural person 2. Up to 1,000,000 Afghanis by a legal person