Rising Senior Turnout Could Reshape Brazil’s Second-Round Electorate

Overview

• Brazil’s Constitution makes voting compulsory for literate citizens aged 18–70 and optional for 16–17-year-olds, people over 70 and illiterate voters, which means older voters face no legal penalty for skipping the polls.
• About 158.7 million Brazilians are eligible to vote in 2026 and roughly 22.7 million fall into optional categories, with the 70-plus group growing to roughly 16.6–17 million and giving seniors a bigger share of the active electorate.
• Overall abstention in the first round rose to a post-1998 high, but participation among voters aged 70 and older improved, with senior abstention falling by about 9.7 percentage points compared with 2022.
• Grassroots and institutional campaigns — including Movimento Voto 70+, Vovó Vota and appeals by the Brazilian Academy of Letters working with regional courts — have used digital guides, family mobilization and local outreach to help seniors regularize registration and find accessible polling places.
• Electoral authorities continue to enforce fines and administrative restrictions for mandatory voters who fail to vote or justify absences, and the shift toward higher senior turnout could affect which issues and regions swing in the second round.