The municipal property tax (Imposto Municipal sobre Imóveis), known as IMI, is an annual tax on property ownership calculated from the property’s taxable value, with the exact rate set by each municipality. For expats who own property, IMI is a recurring local cost that can vary by location and is often central to policy discussions about housing affordability.

Socialist Party (PS)

• Leader: José Luís Carneiro (since June 2025)
• Ideology: Center-left, Social democracy, pro-Europeanism

Portugal's other traditional major party suffered a historic collapse in the 2025 election, dropping from 78 to 58 seats and falling to third place for the first time in democratic history. The party was led by Pedro Nuno Santos from January 2024 until his resignation following the May 2025 defeat. José Luís Carneiro, a 53-year-old former Minister of Internal Administration known for his moderate positioning within the party, was elected unopposed as the new Secretary-General with 95% of votes in June 2025. ​ The Socialist Party governed Portugal from 2015 to 2024, including an absolute majority from 2022 to 2024 under António Costa, who resigned in November 2023 amid a corruption investigation. The PS previously led the innovative "Geringonça" (contraption) coalition government from 2015-2019, a minority government supported by the Left Bloc and Portuguese Communist Party that reversed austerity measures and presided over economic recovery.

The PDM (Plano Diretor Municipal) is the Municipal Master Plan, a strategic document that defines land use, zoning, and urban development rules for a specific municipality. It dictates where residential, commercial, or industrial construction is permitted and is essential for local housing and infrastructure planning.

The PRR (Plano de Recuperação e Resiliência) is Portugal's national program under the EU's NextGenerationEU recovery fund, worth approximately €22.2 billion — roughly €16.6 billion in grants plus €5.6 billion in loans. Approved in 2021, it funds reforms and investments across housing, digital transition, climate action, healthcare, and public administration.

Payments from the European Commission are tied to specific milestones and targets. Missed deadlines or incomplete reforms can delay disbursements, affecting public works, infrastructure projects, and social programs that depend on PRR funding.

The PRR is one of the largest investment programs in Portugal's recent history and touches areas from affordable housing construction to hospital modernization, school renovation, and green energy transition. Progress is monitored by the European Commission through regular reviews.