Only the elections since the Carnation Revolution of 1974 are listed here. During the period encompassing the Constitutional Monarchy and the First Republic there were also elections, but only for a limited universe of voters. During the Estado Novo regime, from 1926 to 1974, the few elections held were not up to the democratic standards of their time and never resulted in power transfer.
The Autonomous Regions of Azores and Madeira elect their own regional government for a four-year term, usually on the same day. The first regional elections were held in 1976.
On a local level, 308 Municipal Chambers and Municipal Assemblies and 3,092[2]Parish Assemblies are elected for a four-year term in separate elections that usually occur on the same day.
The Assembly of the Republic has 230 members elected to four-year terms. Governments do not require absolute majority support of the Assembly to hold office, as even if the number of opposers of government is larger than that of the supporters, the number of opposers still needs to be equal or greater than 116 (absolute majority) for both the Government's Programme to be rejected or for a motion of no confidence to be approved.[3]
The number of seats assigned to each district depends on the district magnitude.[4] The use of the d'Hondt method makes for a higher effective threshold than certain other allocation methods such as the Hare quota or Sainte-Laguë method, which are more generous to small parties.[5]
Under the Portuguese Constitution adopted in 1976, in the wake of the 1974 Carnation Revolution, the President is elected to a five-year term; there is no limit to the number of terms a president may serve, but a president who serves two consecutive terms may not serve again in the next five years after the second term finishes or in the following five years after his resignation.[8] The official residence of the Portuguese President is the Belém Palace.
The President is elected in a two-round system: if no candidate reaches 50% of the votes during the first round, the two candidates with the most votes face each other in a second round held two weeks later. As of 2021[update], the 1986 presidential election was the only time a Portuguese presidential election was taken into a second round.
The most recent election was held in 2021 and the next is expected to be in 2026.
Portugal has two autonomous regions, Azores and Madeira, that elect their own representatives for the regional parliaments every 4 years. The first elections were in 1976 and usually they were both held in the same day until 2007 when Madeira held an early election and Azores held its election the next year. The last election in Azores was on 4 February 2024, and Madeira was on 23 March 2025.
The Constitution of Portugal defines referendum in Article 115.[9] The referendum is called by the President of Portugal, on a proposal submitted by the Assembly or the Government. The President can refuse a proposal for referendum submitted to him by the Assembly or the Government if it is found to be unconstitutional or illegal. Referendums are binding if turnout is higher than 50% of registered voters.
Citizens of Portugal have the right to submit to the Assembly an initiative for a referendum.
The referendum can be held only on "important issues concerning the national interest which the Assembly of the Republic or the Government must decide by approving an international convention or passing a legislative act" (paragraph 3[9]). The referendum cannot be held on amendments to the Constitution, budget, taxes, finances and competences of the Assembly, except when issue is the object of an international convention, except when the international convention concerns peace or the rectification of borders.
There have been four nationwide referendums in the History of Portugal:
The Constitutional referendum of 1933 did not comply with the standards of a democratic suffrage, as, for example, abstentions were counted as supportive votes. It resulted in the establishing of the Estado Novo regime.
The later three referendums, held in the context of a Western-styleliberal democracy had turnout less than 50%, so they were not binding. Nonetheless, decisions of all three referendums were honoured.
↑In the 1979 and 1980 elections, the Social Democratic Party (PSD), the Democratic Social Center (CDS) and the People's Monarchist Party (PPM) ran in a joint coalition called Democratic Alliance (AD). In the Madeira and Azores islands, however, the parties ran in separate lists but are added in total sum of the coalition.
↑In the 1979 and 1980 elections, the Communist Party (PCP) and the Portuguese Democratic Movement (MDP) ran in a joint coalition called United People Alliance (APU).
↑In the 1980 election, the Socialist Party (PS), the Leftwing Union for the Socialist Democracy (UEDS) and the Independent Social Democratic Action (ASDI) ran in a joint coalition called Republican and Socialist Front (FRS). In the Madeira and Azores islands, plus the foreign electoral constituencies, however, the parties ran in separate lists but are added in total sum of the coalition.
↑In the 1983 and 1985 elections, the Communist Party (PCP), Portuguese Democratic Movement (MDP) and the Ecologist Party "The Greens" (PEV) ran in a joint coalition called United People Alliance (APU).
↑After the 1987 elections, and still today, the Communist Party (PCP) and the Ecologist Party "The Greens" (PEV) run in a joint coalition called Unitary Democratic Coalition (CDU).
↑ The Social Democratic Party (PSD) and the People's Party (CDS–PP) contested the 2015 election in a coalition called Portugal Ahead (PàF) and won a combined 38.6% of the vote and elected 107 MP's to parliament.
↑In the 2024 election, the Social Democratic Party (PSD), the People's Party (CDS–PP) and the People's Monarchist Party (PPM) ran in a joint coalition called Democratic Alliance (AD). In Madeira, the PSD and CDS–PP ran in a coalition without PPM, but the results are added in total sum of the coalition.
↑In the 2025 election, the Social Democratic Party (PSD) and the People's Party (CDS–PP) ran in a joint coalition called AD – PSD/CDS Coalition. In Azores, the PSD and CDS–PP ran in a coalition with PPM, but the results are added in total sum of the coalition.
↑ Compared with the 2024 Democratic Alliance (PSD/CDS/PPM)
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