Party conventions to nominate candidates should take place from 20 July to 5 August.

Free advertisements on radio and television begin on 30 August.

According to current electoral law, the two-round system - if the most voted candidate doesn't get 50% +1 of valid votes –is only available in cities with more than 200,000 voters.

[2] In 2024, nearly 154 million people were eligible to vote –of which 20 million were not required to, according to the Superior Electoral Court, which represented a 5.4% increase from the previous municipal elections in 2020.

[3] 70-year-old or older people, who were not required to vote, accounted for 15,000,000 voters, that is, 10% of total voters, the highest such figure in 16 years in Brazil.