Brazil’s Government Type: Federal Presidential Republic

Brazil’s government type is a federal presidential republic, established by the 1988 Constitution. That short label carries three separate ideas: power is split between a national government and subnational units (federal), a single directly elected president serves as both head of state and head of government (presidential), and sovereignty rests with the people rather than a monarch (republic). The system pairs a strong presidency with a fragmented multi-party Congress and an independent judiciary, and the interaction among those three shapes almost everything about how the country is actually governed.

What “Federal Presidential Republic” Means in Brazil

The three parts of the label each do specific work.

Federal. Brazil is a three-tier federation: the national government, 26 states plus the Federal District, and more than 5,500 municipalities. Each level is treated by the Constitution as an independent unit with its own responsibilities and revenue.¹

Presidential. The president is elected directly by voters, not chosen by the legislature, and combines the roles that a parliamentary system would split between a prime minister and a ceremonial head of state. The president leads the federal administration, directs foreign policy, and appoints cabinet ministers.

Republic. All top offices are filled by election, terms are limited, and the Constitution places the source of political authority in the people, exercised through elected representatives and, in some cases, directly through referendums and popular legislative initiatives.²

The 1988 Constitution

The current system dates from the 1988 Constitution, often called the “Citizen Constitution,” which replaced the framework left over from Brazil’s military dictatorship. It defines the country as a democratic federative republic, establishes a strict separation of powers among the executive, legislative, and judicial branches, and lays out an unusually detailed list of individual and social rights.²

Changing the Constitution is possible but deliberately hard. A Proposed Constitutional Amendment, known as a PEC, must pass both the Chamber of Deputies and the Federal Senate by a three-fifths supermajority in two separate rounds of voting in each chamber. Some provisions cannot be amended at all: the federal structure itself, direct elections, separation of powers, and individual rights and guarantees are protected by so-called “eternity clauses” meant to prevent any future government from dismantling the democratic order.³

The President

The president serves a four-year term and can be reelected once consecutively.⁴ Elections use a two-round majority system: if no candidate wins more than 50 percent of valid votes in the first round, the top two go to a runoff.⁵ The vice president is the immediate successor if the presidency becomes vacant, and the slot is often given to a coalition partner’s party as part of the deal that holds the governing alliance together.

One of the president’s most distinctive tools is the provisional measure, a decree that takes effect immediately with the force of law. The Constitution restricts these to situations of “relevance and urgency,” and Congress must vote within 60 days, extendable once for another 60. If neither chamber acts within 45 days, the measure jumps to the top of the legislative agenda and blocks everything else until it is resolved.⁶

The power has real limits. Provisional measures cannot be used on criminal law, electoral law, the organization of the judiciary, or budget guidelines, and a measure that Congress rejects or lets expire cannot be reissued in the same legislative session.⁶ Before a 2001 constitutional amendment tightened the rules, presidents could reissue provisional measures indefinitely, effectively governing by decree on some topics.

The National Congress

Congress is bicameral. The Chamber of Deputies represents the population, and the Federal Senate represents the states equally.

Chamber of Deputies

The Chamber has 513 seats, distributed among the states in proportion to population, with a floor of 8 and a ceiling of 70 deputies per state. Deputies serve four-year terms and are elected through open-list proportional representation, meaning voters pick a specific candidate inside a party slate rather than the party alone.⁴ There are no term limits.

Federal Senate

The Senate has 81 seats, with three senators from each of the 26 states and the Federal District, regardless of population. Senators serve eight-year terms, elected by simple majority within each state, and elections are staggered so that either one-third or two-thirds of the seats are up every four years.⁷⁸

Both chambers pass legislation, approve the federal budget, and oversee the executive. Ordinary laws need a simple majority in each chamber; constitutional amendments need the three-fifths supermajority in two rounds in each.

The Judiciary

The judicial branch is independent from the political ones. Judges hold lifetime appointments and retire at 75.

At the top sits the Supreme Federal Court (Supremo Tribunal Federal, or STF), made up of 11 justices nominated by the president and confirmed by an absolute majority of the Senate. Its central job is constitutional review: deciding whether laws and government actions comply with the 1988 Constitution. The STF also has original jurisdiction over criminal cases against high-ranking officials, including the president, members of Congress, and its own justices.⁹

Coalition Presidentialism

The formal design tells only half the story. Because Brazil’s proportional system produces one of the most fragmented legislatures in the world (23 parties won Chamber seats in the 2022 election alone), no president’s party has come close to a majority. Governing therefore requires assembling a post-election coalition of many parties, an arrangement political scientists call coalition presidentialism.

The trade is direct. Presidents distribute cabinet ministries, leadership posts in state-owned companies, and control over government spending to allied parties in exchange for their votes in Congress. The closer the president’s distribution tracks each party’s legislative weight, the more stable the coalition. When one party hoards too much, junior partners drift away. This dynamic sits behind several of Brazil’s biggest political crises, including the corruption scandals that engulfed the Workers’ Party and its coalition partners in the 2000s and 2010s.

Recent reforms have tried to trim the fragmentation. Parties must clear a national performance threshold to access public campaign funding and free broadcast time, which pushes smaller parties to merge or form federations. The system remains highly fragmented by international comparison.

Federalism in Practice

States have their own constitutions, elected governors, and legislative assemblies. They run state police, state-level courts, and much of education and public health. Municipalities operate under their own organic laws and handle local taxation, urban planning, public transportation, and primary education. The Federal District has a hybrid status, exercising powers that belong elsewhere to both states and municipalities.¹

The arrangement is often called cooperative federalism because most policy areas need all three levels working together. Health care is the clearest case: the federal government sets national policy and provides funding, states manage regional hospital networks, and municipalities run primary care clinics. Revenue sharing makes the model workable. The federal government collects most tax revenue and redistributes portions to states and municipalities through constitutionally mandated transfer funds, including the State Participation Fund (FPE) and the Municipal Participation Fund (FPM). Those transfers are especially important for poorer states and smaller municipalities without a strong local tax base.

How Brazilians Vote

Voting is compulsory for literate Brazilians between 18 and 70, and optional for citizens aged 16 and 17, those over 70, and illiterate citizens.¹⁰ Skipping a vote without justification can bring a small fine and, if unresolved, restrictions on obtaining a passport or taking a civil service job.

The president, state governors, and mayors of cities with more than 200,000 registered voters are elected by absolute majority with a runoff if needed.⁵ Mayors of smaller municipalities win outright with a plurality. Federal deputies are chosen by open-list proportional representation, and senators by simple majority in their state.⁴

Every election since 2000 has used electronic voting machines. The machines are standalone, not connected to the internet, and built to run on battery power.¹¹ The Superior Electoral Court (TSE) runs the entire process, from voter registration to counting, a consolidation that is unusual by international standards.

Removing a President

The presidency is powerful, but not permanent. A president can be impeached for “crimes of responsibility,” which the Constitution defines broadly to include attempts against the federal Constitution, violations of citizens’ rights, breaches of public administration integrity, and violations of budgetary law. The Chamber of Deputies must authorize the proceedings by a two-thirds vote; the Senate then conducts the trial with the chief justice of the Supreme Federal Court presiding, and conviction requires a two-thirds Senate vote. Brazil has used the process twice under the current Constitution: Fernando Collor resigned during his Senate trial in 1992, and Dilma Rousseff was removed from office in 2016.

1
Forum of Federations. Federal Republic of Brazil
2
Political Database of the Americas. Brazil: 1988 Constitution with 1996 Reforms
3
Federal Supreme Court (STF). Constitution of the Federative Republic of Brazil
4
Georgetown University. Brasil: Sistemas Electorales / Electoral Systems
5
ACE Electoral Knowledge Network. Brazil – Comparative Data
6
Agência Brasil. Agência Brasil Explains the Processing of Provisional Measures
7
Chamber of Deputies Portal. The Federal Senate
8
Presidency of the Republic of Brazil. Federal Legislative Branch
9
Legal Information Institute. Supremo Tribunal Federal (Supreme Federal Court of Brazil)
10
Superior Electoral Court. Voters Abroad
11
Superior Electoral Court. Presentation – Electronic Voting Machine (EVM)