28. Are there provisions for direct public funding to political parties?

Article 75, organic-law, 2014-16, 26th May 2014 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.

Article 76, organic-law,2014-16,2014, 26th May 2014 of the elections and referendum.
Any financing in cash or in-kind for the campaign with the personal resources of the candidate list, candidate, or party for its candidate lists or the referendum is considered self-financing.

Article 77 organic-law, 2014-16, 26th May 2014 of the elections and referendums. 
Any funding in cash or in kind whose source comes from someone other than the candidate list, candidate, or party is considered private funding.
The campaign for each candidate list, candidate, or party can be financed exclusively by natural entities, at a calculation of twenty times the minimum guaranteed wage in the non-agricultural sectors per individual for the legislative elections and thirty times for the presidential elections and referendum, for each candidate list, candidate or party.

Article 1, Order No. 860 of 2022 dated November 16, 2022, determining the total ceiling for spending on the election campaign for members of the House of Representatives of the People for the year 2022: the campaign for the elections of members of the House of People’s Representatives for the year 2022 will be financed exclusively through self-financing and private financing, in accordance with the provisions of Chapter 75 of Basic Law No. 16 of 2014 dated May 26, 2014, referred to above.

Unofficial English translation.

Public financing during an electoral campaign is prohibited.