Brazil Election 2026 Guide: October 4 Vote, Polls, Stakes
Brazil · Elections
Key Facts
—The date. Brazilians vote on 4 October 2026 for president, all 513 deputies, 54 senators and 27 governors; a runoff, if needed, follows on 25 October 2026. Official candidacies are registered at party conventions running 20 July–5 August, with the formal campaign period opening on 16 August. Since 4 July, incumbency-advantage rules have been in force: officials may no longer run institutional advertising, attend ribbon-cuttings, or make staffing changes.
—The frontrunners. President Lula (PT), aged 80, seeks an unprecedented fourth term against Senator Flávio Bolsonaro (PL); Lula has confirmed Geraldo Alckmin (PSB) as his running mate. Right-wing activist Renan Santos (Missão Party) has emerged as a notable third candidate, particularly among younger voters, while ex-Governor Ronaldo Caiado (PSD) and ex-Governor Romeu Zema (NOVO) also remain in the field. São Paulo Governor Tarcísio de Freitas, widely seen as the right’s strongest option, is legally barred from the presidential race after opting to seek re-election as governor.
—The polls. The most recent survey, AtlasIntel/Bloomberg (1 July 2026), puts Lula at 48.8% and Flávio at 42.3% in a simulated runoff. Datafolha (June 2026) shows Lula 41%–Flávio 31% in the first round and Lula 47%–Flávio 43% in a runoff. Genial/Quaest (10 June 2026) has Lula 44%–Flávio 38% in a runoff. Earlier BTG Pactual/Nexus (late April) showed a statistical tie at Lula 46%–Flávio 45%.
—Jair Bolsonaro. serving a 27-year prison sentence for his role in the 2022 coup plot; moved to house arrest due to deteriorating health and recently allowed by a Supreme Court justice to remain on house arrest; barred from office until at least 2030 by the TSE, with the Supreme Court’s coup conviction extending that bar to approximately 2060. Eduardo Bolsonaro has withdrawn from presidential contention. Jair Bolsonaro publicly endorsed Flávio in December 2025, consolidating the conservative vote behind his son.
—Key campaign development. Reports linked Flávio Bolsonaro to a discredited banker and alleged financing for a film glorifying Jair Bolsonaro; following this “Banco Master” scandal, Datafolha polls in May showed Lula’s lead widening to 40%–31% in the first round. The race remains competitive, with some earlier 2026 polls showing a statistical deadlock in runoff scenarios, though mid-2026 surveys indicate Lula strengthening his position to a 4–8 point advantage.
Brazil’s 2026 presidential election is shaping up to be the most competitive race in a generation. President Luiz Inácio Lula da Silva is seeking an unprecedented fourth term, but the latest Genial/Quaest poll (April 9–13) shows Senator Flávio Bolsonaro numerically leading him for the first time in a second-round simulation — the eldest son of imprisoned former President Jair Bolsonaro. The follow-up BTG Pactual/Nexus survey (April 24–26) confirms a statistical tie: 46% to 45% in Lula’s slight favor. With the first round scheduled for October 4, 2026, here is everything you need to know about the candidates, polls, key dates, and issues driving the campaign.
When is Brazil’s 2026 election and who is running?
Brazil votes on October 4, 2026 for president, all 513 deputies, 54 senators and 27 governors, with a runoff on October 25 if needed. President Lula (PT) seeks a fourth term against Senator Flávio Bolsonaro (PL), while Jair Bolsonaro is barred from office.
Key Electoral Dates 2026
The 2026 Brazilian general election will choose the president, all 513 Chamber of Deputies seats, 54 of 81 Senate seats, and all 27 state governors. Brazil uses a two-round system: if no presidential candidate wins more than 50% of valid votes in the first round, the top two candidates advance to a runoff.
| Date | Event |
|---|---|
| May 15, 2026 | Crowdfunding of candidates begins (TSE rules) |
| April 4, 2026 | Resignation deadline — 11 governors stepped down to run for office |
| July 20 – August 5, 2026 | Party conventions — formal candidate selection and coalition-building |
| August 16, 2026 | Official campaign period begins — free radio & TV advertising starts |
| October 1, 2026 | Campaign advertising ends (48-hour blackout) |
| October 4, 2026 | First round: president, Congress, governors — compulsory voting |
| October 9–23, 2026 | Second-round campaign advertising period |
| October 25, 2026 | Second round (runoff) — if no first-round majority |
| Until December 19, 2026 | Electoral diplomas delivered to winners by the TSE |
| January 1, 2027 | Presidential inauguration |
Every Brazilian presidential election since 2002 has gone to a runoff. Prediction markets currently give a first-round victory only a 12% probability. Under Brazilian law, voting is compulsory for citizens aged 18–69 and optional for those aged 16–17 and over 70.
Latest Poll Numbers — April 2026
First Round (Most Likely Scenario)
| Pollster | Dates | Lula (PT) | Flávio (PL) | Caiado (PSD) | Zema (NOVO) | Others |
|---|---|---|---|---|---|---|
| Datafolha | Apr 7–9 | 39% | 35% | 5% | 4% | 6% |
| Genial/Quaest | Apr 9–13 | 37% | 32% | 6% | 3% | 5%+ |
| BTG Pactual/Nexus | Apr 24–26 | 41% | 36% | 3% | 4% | 7% |
| Ideia | Apr 3–7 | 40.4% | 37% | 6.5% | 3% | 5% |
| Paraná Pesquisas | Mar 25–28 | 41.3% | 37.8% | 3.6% | 3% | 3% |
| AtlasIntel | Mar 18–23 | 45.9% | 40.1% | 3.7% | 3.1% | 3% |
Note: AtlasIntel uses a larger sample (5,000+) and online recruitment, which tends to produce slightly higher figures for both candidates; margins of error ±1–2 pp.
Second Round Simulations — Lula vs. Top Challengers
| Matchup | Pollster | Dates | Lula | Challenger | Lead |
|---|---|---|---|---|---|
| Lula vs. Flávio | BTG/Nexus | Apr 24–26 | 46% | 45% | +1 Lula (tie) |
| Lula vs. Flávio | Genial/Quaest | Apr 9–13 | 40% | 42% | +2 Flávio |
| Lula vs. Flávio | Datafolha | Apr 7–9 | 45% | 46% | +1 Flávio (tie) |
| Lula vs. Flávio | Ideia | Apr 3–7 | 45.5% | 45.8% | Tie |
| Lula vs. Zema | Genial/Quaest | Apr 9–13 | 43% | 36% | +7 Lula |
| Lula vs. Zema | BTG/Nexus | Apr 24–26 | 45% | 41% | +4 Lula |
| Lula vs. Caiado | Genial/Quaest | Apr 9–13 | 43% | 35% | +8 Lula |
| Lula vs. Caiado | BTG/Nexus | Apr 24–26 | 45% | 41% | +4 Lula |
The trend is unmistakable: Flávio Bolsonaro has erased Lula’s once-comfortable runoff lead. In December 2025 Lula held a 23-point runoff advantage; by April 2026 that gap had closed to a statistical tie. Lula wins every other simulated runoff by comfortable margins — Flávio is the only challenger who can beat him. For daily updates, see our Brazil Election Poll Tracker 2026.
Government approval (Genial/Quaest, Apr 9–13): 43% approve, 52% disapprove — the highest disapproval rate since July 2025. 72% of Brazilians report being in some form of debt.
The Candidates: Full Profiles
Luiz Inácio Lula da Silva — PT (Workers’ Party)
Age: 80 (born October 27, 1945). Running mate: Geraldo Alckmin (PSB), confirmed March 31, 2026. Status: Declared candidate.
The incumbent is running for what would be his fourth presidential term — an unprecedented feat in Brazilian democratic history. Lula served his first two terms from 2003–2010, was imprisoned on corruption charges in 2018 (later annulled), and won back the presidency in 2022 by just 1.8 percentage points over Jair Bolsonaro. In 2024 he survived emergency brain surgery following a subdural haematoma.
Platform: Lula’s 2026 campaign centers on income transfer programs (Bolsa Família, expanded to cover 21 million families), a R$700 billion stimulus package, 6×1 work schedule reform, environmental protection (Amazon deforestation fell to a 9-year low in 2023), and critical minerals diplomacy. Critics point to fiscal deterioration, a deficit that breached 7% of GDP in 2025, and an R$1.7 trillion debt stock.
Key challenge: His negative image (52% disapproval in April 2026) exceeds his positive image for the first time in his third term. A Paraná Pesquisas survey found 53% of voters believe he “does not deserve reelection.” His age and health remain background concerns despite his active campaign schedule. He retains a commanding first-round lead (37–41%) and wins all simulated runoffs except against Flávio Bolsonaro.
Flávio Bolsonaro — PL (Liberal Party)
Age: 44 (born November 7, 1981). Status: Declared candidate, endorsed by imprisoned father Jair Bolsonaro in December 2025.
Senator for Rio de Janeiro since 2019, Flávio is the eldest of Jair Bolsonaro’s political sons and the vehicle through which the imprisoned former president seeks to maintain a grip on Brazil’s right wing. São Paulo Governor Tarcísio de Freitas — by far the most popular figure on the Brazilian right — formally endorsed Flávio in January 2026 and confirmed he would seek reelection as governor rather than run for president. That decision cleared the right-wing field and gave Flávio the institutional infrastructure of Brazil’s largest state.
Rise in the polls: Flávio closed a 23-point runoff deficit against Lula in just four months. He first tied Lula in the Quaest March poll (41%–41%), then surpassed him numerically in April (42%–40%) — a historic first in that pollster’s series. Prediction markets (Polymarket) favoured Flávio in the spring, but by July 2026 had swung back toward Lula after his campaign was rocked by a corruption scandal.
Platform: Fiscal conservatism, amnesty for those convicted in relation to January 8, 2023; repeal or review of STF “censorship” rulings on social media; strong-on-crime messaging; alignment with Donald Trump’s political model. His candidacy faces a ceiling problem: high personal rejection rates, particularly in the Northeast, where Lula dominates.
Ronaldo Caiado — PSD (Social Democratic Party)
Age: 72 (born October 26, 1953). Status: Declared candidate. Former governor of Goiás (2019–2026).
Caiado resigned on April 4, 2026 to run as a centrist-right alternative. Formally nominated by PSD on March 30, he was the only candidate to survive a contested PSD primary after Eduardo Leite and Ratinho Júnior withdrew. He is positioning himself as a “third way” between the Lula and Bolsonaro camps, appealing to evangelical Christians, agribusiness (he is a physician and rancher), and fiscal conservatives who are uncomfortable with the Bolsonaro brand.
Polls: 3–6% first round; 35–41% in simulated runoffs against Lula. His challenge is breaking out of single digits in the first round. One Quaest scenario (Apr 9–13) recorded Caiado at 6% — the highest of his series. He won all of Goiás’ 246 municipalities in the 2022 gubernatorial race, giving him a strong agribusiness heartland base.
Romeu Zema — NOVO (New Party)
Age: 58 (born October 27, 1967). Status: Declared candidate. Former governor of Minas Gerais (2019–2026).
The former governor of Brazil’s second-largest electoral state resigned on March 22, 2026 to run on a free-market, anti-establishment platform. Minas Gerais, with 16.8 million voters, delivered the crucial margin of Lula’s 2022 victory by just 0.4 percentage points. The Quaest April poll places Zema at 3% nationally, but he shows stronger numbers in Minas itself (AtlasIntel recorded 4.7% for Zema among Minas voters). Zema was reelected in Minas in 2022 with 56% in the first round, but has struggled to translate that local dominance into a national coalition. In simulated runoffs, he trails Lula 36%–43%.
Other Declared Candidates
The Genial/Quaest April poll tested nine candidates. Beyond the four frontrunners, the field includes Augusto Cury (Avante, psychiatrist/author, 2%), Renão Santos (Missão, 2%), Cabo Daciolo (Mobiliza, 1%), Samara Martins (UP, 1%), and Aldo Rebelo (Democracia Cristã, <1%) — none polling above 2%.
Notable Non-Runners
- Jair Bolsonaro: Convicted by the STF in September 2025 of attempted coup, sentenced to 27 years and 3 months in prison, and barred from holding any public office until approximately 2060 (eight years after sentence completion). He began serving his sentence in November 2025 at a federal police detention facility in Brasília. He is permanently ineligible for 2026.
- Eduardo Bolsonaro (PL): Federal deputy and son of Jair Bolsonaro, he explored a presidential bid in 2025 but formally withdrew to support his brother Flávio. He is considering a Senate run instead.
- Tarcísio de Freitas: São Paulo’s popular governor chose to seek reelection as governor and endorsed Flávio Bolsonaro. His coattails give Flávio a structural advantage in Brazil’s largest state (47 million voters).
- Pablo Marçal: Declared ineligible until 2032 by the TSE for electoral crimes.
- Rodrigo Pacheco: The Senate president (PSB) is widely expected to run for governor of Minas Gerais with Lula’s backing, not for the presidency. AtlasIntel (April 2026) shows him polling second in Minas gubernatorial scenarios behind Senator Cleitinho (Republicanos).
Senate Elections 2026: 54 Seats at Stake
Unlike the 2022 cycle (which elected one-third, 27 seats), 2026 is a two-thirds cycle: 54 of 81 Senate seats will be contested — two per state plus one for the Federal District. Brazil’s senators serve 8-year terms, and the seats up for election are those won in 2018. Senate races use a first-past-the-post system: the candidate with the most votes in each state wins, regardless of margin.
Prediction markets overwhelmingly favor the Partido Liberal (PL) to win the most Senate seats (86% implied probability), riding Flávio Bolsonaro’s presidential coattails and the party’s aggressive candidate recruitment. The PSD is the distant second at 5%.
Key Senate races to watch:
- Minas Gerais (2 seats): Most-watched race. Rodrigo Pacheco (PSB) is pivoting to the governorship. Marilia Campos (PSB) leads early Senate polls with 19%, followed by Aécio Neves (PSDB) at 11%. This state is a national bellwether.
- São Paulo (2 seats): Incumbents Mara Gabrilli (PSD) and Alexandre Giordano (MDB) are eligible for reelection. Multiple PL candidates are polling above 20% in early state surveys.
- Rio Grande do Sul (1 seat): An open race with no incumbent re-running; PL’s Van Hattem is a frontrunner in early polls.
- Paraná (1 seat): Senator Sérgio Moro (PL) is instead contesting the gubernatorial race, opening a competitive Senate seat.
Swing States and Electoral Geography
Brazil has no Electoral College: presidential votes are aggregated nationally, but regional momentum matters enormously for congressional and gubernatorial races. The three decisive regions:
- Nordeste (Northeast) — Lula stronghold: 9 states, ~57 million voters. Lula won the region with more than 70% of the vote in 2022. This is where his social programs (Bolsa Família, Minha Casa Minha Vida) have the deepest roots. Flávio Bolsonaro’s rejection rates are highest here.
- Sudeste (Southeast) — Battleground: São Paulo (47M voters), Minas Gerais (17M), Rio de Janeiro (12M), Espírito Santo. This is where elections are won or lost. Lula won Minas by 0.4 points in 2022; São Paulo, dominated by Tarcísio, leans right. AtlasIntel (Apr 2026) shows Flávio leading Lula 46.9%–43.7% in Minas — a reversal from 2022.
- Sul (South) — Bolsonaro heartland: Paraná, Santa Catarina, Rio Grande do Sul. Historically the most conservative region; Bolsonaro won all three states in 2022. Jorginho Melo (PL) is a near-certain first-round winner for governor of Santa Catarina, illustrating right-wing dominance.
Six Key Issues Shaping the Race
1. Economy and Fiscal Policy
The economy is the top voter concern. The World Bank cut Brazil’s 2026 growth forecast to 1.6%, while inflation remains above the Central Bank’s target. Lula has responded with a R$700 billion stimulus package and 24,000 new federal positions, which critics call election-year spending. The opposition is campaigning on fiscal discipline and spending reform.
2. Public Security
Violent crime and organized crime remain persistent concerns. Both sides propose tougher law enforcement, but differ on the role of the military and police reform. The 2025 Rio de Janeiro Comando Vermelho operation that killed more than 120 people remains a raw wound in the national debate.
3. The Banco Master Scandal
A growing banking scandal involving Banco Master and its ties to Supreme Court justices has become a campaign issue. The IMF issued a rare warning about financial stability risks, while the STF has faced questions about judicial independence. Read our complete Banco Master Scandal coverage.
4. Incumbency Fatigue
Lula’s disapproval rating (52%) exceeds approval (43%) for the first time in his third term. His age (80 by election day), rising fiscal deficits, and the perception that his government is running out of reformist energy are all factors driving the “does not deserve reelection” sentiment (53% in Paraná Pesquisas).
5. Critical Minerals and Geopolitics
Brazil’s vast reserves of lithium, rare earths, and niobium have become a campaign issue as the US and China compete for access. The 50% US tariff on Brazilian imports (Trump’s trade war) puts both sides in a difficult position, with neither able to claim a clean position on the bilateral relationship.
6. Institutional Battles
The Supreme Court appointment standoff and the ongoing political weaponization of the STF — both for and against the Bolsonaro network — are deepening voter distrust of institutions. Flávio’s campaign explicitly targets STF overreach as a mobilizing theme for conservative voters.
How Brazil’s Electoral System Works
Brazil uses a two-round system with compulsory voting for citizens aged 18–69. Key rules:
- A candidate must win more than 50% of valid votes (excluding blank and null ballots) to win in the first round
- If no candidate reaches this threshold, the top two advance to a runoff three weeks later
- Governors and state officeholders must resign at least six months before the election to run for president
- Presidents can serve a maximum of two consecutive terms but can run again after sitting out one cycle — which is how Lula is eligible for a fourth non-consecutive term
- Brazil has no Electoral College: all valid votes are aggregated nationally for the presidential race
- The TSE (Superior Electoral Court) oversees all election logistics, including Brazil’s fully electronic DRE voting machines
- Senate seats are filled by plurality (first past the post), unlike Chamber of Deputies seats which use open-list proportional representation
What to Watch Next
With less than six months until the first round, the race is entering its decisive phase:
- May–June: Congressional vote on the 6×1 work reform bill; Lula hopes a win boosts his numbers ahead of the campaign
- July 20–August 5: Party conventions finalize tickets and coalitions; any last-minute alliance shifts could reshape the race
- August 16: Official campaign period begins — expect a surge in TV advertising and the first major presidential debates
- September–October: Final polls, TV debates, and voter mobilization before the October 4 first round
- Key metric: Flávio’s rejection rate; if he cannot bring it below 45% nationally, the runoff math favors Lula regardless of first-round momentum
This guide is updated continuously as the race develops; the newest polling and headlines are summarised in the Latest developments box. For daily coverage, visit the Brazil Elections 2026 section, and track every poll in our live poll tracker.
Related coverage: Lula Government Hub • Tax Reform 2026 • Brazil Economic Outlook • Senate Elections 2026 • Banco Master Scandal
Brazil’s governing ticket is now formal. The PT nominated President Lula for re-election with Geraldo Alckmin returning as running mate, closing the convention season on the incumbent side ahead of the October 4 first round. The latest polling has Lula at 39 percent against Flávio Bolsonaro’s 33, a gap narrow enough that both camps are now planning for a runoff rather than a first-round decision.
The pension-fraud investigation is the variable neither side controls. Federal police work on the INSS case has reached Lula’s inner circle, with the president’s son among those probed, and the inquiry has since widened to a sitting senator. Nothing charged so far touches the president directly, but the case hands the opposition a corruption frame it lacked in 2022 and is setting the terms of the early campaign.
Disinformation enforcement has already begun. The electoral court is investigating an AI-generated video of Flávio Bolsonaro circulated around his convention, an early test of how the TSE intends to apply its synthetic-media rules this cycle.
As of early August 2026, Brazil's presidential race is entering its official campaign period with party conventions concluding this week. President Lula maintains a lead over Senator Flávio Bolsonaro in recent polls, though the contest remains competitive. The key development remains the 'Banco Master' scandal linking Flávio to a discredited banker, which has widened Lula's first-round advantage, while Jair Bolsonaro continues to serve his sentence under house arrest and remains barred from office.
Frequently Asked Questions
When is Brazil’s 2026 presidential election?
Can Jair Bolsonaro run in the 2026 election?
Who is leading in Brazil’s 2026 presidential polls?
Is voting mandatory in Brazil?
How many seats are contested in Brazil’s 2026 Senate election?
Who is Flávio Bolsonaro?
Why is Brazil’s 2026 election going to a runoff?
What is Brazil’s electoral system for the presidential race?
What are the key issues in Brazil’s 2026 election?
Who is Ronaldo Caiado and why is he running?
Last updated: August 3, 2026. Sources: Datafolha, Genial/Quaest, AtlasIntel, Reuters, TSE, BBC, Wikipedia 2026 Brazilian general election, Polymarket, El País English.
Connected Coverage
Follow the numbers in our live 2026 Brazil poll tracker, and compare the regional picture in Peru’s 2026 election guide.
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