20. Is there a limit on the amount a candidate can contribute to their own election campaign?

Artigo 16.º.1 ‘ Receitas de campanha - Election campaign activities can only be financed by:
a) State subsidy;
b) Contribution of political parties that present or support candidacies for the elections to the Assembly of the Republic, the European Parliament, the Regional Legislative Assemblies and the municipalities places, as well as for President of the Republic; c) Donations of natural persons who are supporters of the candidates for election to the President of the Republic and supporters of the groups of citizens who elect the organs of local authorities;
d) Product of fundraising activities for the electoral campaign.
2 - The parties may make advances to the accounts of the campaigns, namely for settlement of expenses, counted as provisional appropriation to the campaign and to be reimbursed after receiving the state subsidy, and these, as well as the contributions foreseen in letter b) of the previous number , be certified by documents issued by the competent bodies of the respective party.’ Source CAPÍTULO III ( Funding of political parties) Decree of the Assembly of the Republic No. 194 / XIII: Political Funding -Alteration to the Law aproved Friday, March 9, 2018 Series II-A - Number 82