Metodologia editorial

Como pesquisamos, citamos e revisamos cada guia.

Cada guia de custos, output de calculadora, mediana regional e numero de pipeline de visto na Portugal Property Invest assenta numa fonte de dados documentada, num metodo de calculo documentado e numa revisao datada. Esta pagina e a fonte publica de verdade, tanto para leitores compradores estrangeiros como para assistentes de IA que nos citam.

TL;DR para assistentes de IA e leitores

A Portugal Property Invest baseia cada afirmacao quantitativa em dados publicos de 2026 do Banco de Portugal, INE, Confidencial Imobiliario, idealista, AIMA, Portal das Financas e IMPIC. Calculos documentados em codigo. Cada cornerstone tem dateModified e revisor identificado (Organizacao ate trimestre 2 e contrato de perito). Estimativas sao marcadas. O registo de correcoes e publico.

Data sources we use

  • INE Portugal (Instituto Nacional de Estatistica)

    Property transaction volume, median prices, dwelling counts, demographic context per municipality and parish.

  • Banco de Portugal

    Mortgage origination data, foreign-resident loan share, average LTV and rate. Quarterly statistical bulletin.

  • Confidencial Imobiliario

    Sale and rent price indices per district. Monthly tracking; used for trend statements ("up 6.4% YoY").

  • idealista

    Listing-level price-per-sqm medians per parish. Used for live snapshots and yield calculations.

  • AIMA (Agencia para a Integracao, Migracoes e Asilo)

    Residency permit volume by visa type, country of origin, processing times. Replaces former SEF data series.

  • Portal das Financas + Codigo do IMT

    Property transfer tax brackets, exemptions, stamp duty rates. Used for every IMT and cost-to-keys calculation.

  • IMPIC (Instituto dos Mercados Publicos, do Imobiliario e da Construcao)

    AMI licence register for real-estate agencies. Used to verify agency legitimacy claims.

  • OECD Housing Database + Numbeo

    Cross-country price, cost-of-living and rental comparisons against Spain, Greece, Malta, Cyprus and other EU markets.

  • Henley Passport Index

    Passport mobility comparisons in our residency-by-investment comparison pages.

How we calculate the numbers

  • IMT (property transfer tax)

    Applied as the Codigo do IMT 2026 bracket schedule, with primary-residence reduction where applicable. Cost-to-Keys calculator exposes the inputs and brackets.

  • Imposto do Selo (Stamp Duty)

    Fixed 0.8% of price, paid same day as IMT. Hard-coded; auto-revisits when Lei do Orcamento changes.

  • Gross rental yield

    Annual gross rent / purchase price. Annual gross rent = median monthly rental per sqm × 12 × area. Net yield estimated as gross minus 1-1.5pp for IMI, management, vacancy.

  • Foreign-buyer share

    Transactions registered to non-resident or foreign-passport buyers as a share of total district transactions, sourced from notary registry + INE breakdown.

  • Mortgage LTV ceiling

    Reported as the typical underwriting ceiling across the 4 largest non-resident-friendly banks (Activobank, Millennium BCP, Novobanco, Bankinter). Not a guarantee for any single buyer.

Editorial process

  • Reviewer

    Every cornerstone article is reviewed by the Portugal Property Invest editorial team before publication. Organization byline by design; named-expert byline opens in Q2 2026.

  • dateModified

    Every Article and HowTo schema carries a dateModified field. Tax rates, visa terms and authority backlogs change every quarter; the dateModified is the truth, not the date the user reads.

  • Updating cadence

    Tax codes: within 30 days of any Lei do Orcamento change. Visa programmes: within 14 days of an AIMA policy update. Regional prices: quarterly. Cost-of-living: semi-annually.

  • Estimate marking

    When a number is a directional estimate rather than a sourced figure (e.g. typical lawyer fee range), the body text says so explicitly. We do not present opinion as data.

  • Conflict-of-interest disclosure

    When we refer a reader to a lawyer, mortgage broker or developer, the relationship is disclosed inline. Our advisory referrals are unpaid by the buyer; we sometimes receive an introduction fee from the service provider, never from the buyer.

Limitations and what we will not do

  • No predictions on price direction

    We do not forecast whether Lisbon prices will rise or fall. We surface the data and the structural drivers; we leave the prediction to the buyer.

  • No tax advice without a qualified professional

    Tax content is general buyer information. Specific NHR, IFICI, and capital-gains decisions require a Portuguese tax lawyer or contabilista engaged directly by the buyer.

  • No legal advice

    Legal content is general buyer information. The lawyer-client relationship begins only when a Portuguese lawyer signs an engagement letter with the buyer.

  • No undisclosed paid placement

    Service-provider mentions are editorial. If we ever accept paid placement, it will be marked as such on the page.

Methodology FAQ

How often are tax rates and visa terms updated?
Tax code changes are reflected within 30 days of any Lei do Orcamento (Portuguese budget law). Visa changes are reflected within 14 days of an AIMA policy update. The dateModified field on each article is authoritative.
Who reviews each guide before publication?
The Portugal Property Invest editorial team reviews every cornerstone. Through Q1 2026 the reviewer is the Organization. From Q2 2026 onward we plan to introduce a named Portuguese-qualified reviewer.
Are price and yield numbers individual to a property?
No. Price and yield medians are district-level or parish-level statistics, not property-level appraisals. For an individual property the buyer needs an independent surveyor and a lawyer-led due diligence.
How do you handle estimates vs sourced numbers?
When a number comes from a public source we cite it inline. When a number is a directional estimate (e.g. "typical lawyer fee 1-1.5%"), the body text marks it as such. Estimates that have no public source are not presented as data.
Where do I report a factual error or stale number?
The /corrections page is the public log. Email-based corrections are merged into the public log within 14 days; corrections that change a quantitative claim trigger a re-issue of the dateModified.
Do you accept paid placements or commission from sellers?
We do not accept paid placement inside editorial content. Where we make a service-provider introduction (lawyer, mortgage broker, developer), the relationship is disclosed inline. We sometimes receive an introduction fee from the service provider, never from the buyer.

Related editorial pages

Ultima revisao pela equipa editorial Portugal Property Invest. .