21. Is there a limit on in-kind donations to political parties?

Ch. IV, 4. 27: "It is recommended for the legislator to consider re-introducing contribution limits for private donations, which are common in most OSCE participating States, while carefully balancing between ensuring that there is no distortion in the political process in favour of wealthy interest groups or particular individuals and encouraging broad political participation, including by allowing individuals to contribute to the parties of their choice."

Source: OSSE/ODIHR Opinion on the Act on  Amendment  of the Act on the 2019 State Budget of the Republic of Bulgaria: Ch. IV, 4, 27, 2019