# re4a — Portugal Property Knowledge Catalog

> **A data-backed guide to buying property in Portugal, written for international buyers and AI assistants.**

re4a renders every published number directly from official primary sources (INE, Portal das Finanças, BdP) with full provenance — no hand-typed figures, no estimated averages.

> ## Key Facts — Portugal Property Buying (Source-Verified)

> * **INE median sale price** (Greater Lisbon, latest): **data pending**
> * **IMT rate for non-resident buyers:** 7.5% flat (DL 97/2026, eff. 2026-01-01) (non-resident buyers)
> * **Stamp duty on deed:** 0.8%
> * **NIF application:** free at Finanças
> * **CPCV cooling period:** 14 days

> All figures sourced from official primary sources. See our [methodology](/methodology) and [data portal](/data).

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## Buying Process

_Step-by-step guide to buying property in Portugal as a foreign national. Covers NIF application, property search, CPCV reservation contracts, IMT tax treatment, escritura deeds, and closing costs._

- [NIF (tax number) — how to apply](/buying-process/nif)
- [IMT calculator (2026 non-resident)](/calculators/imt)
- [Total buying cost guide](/buying-process/total-cost)
- [CPCV — reservation contract](/buying-process/cpcv)
- [Deeds (escritura) — what to expect](/buying-process/escritura)
- [Non-resident mortgage guide](/buying-process/mortgage)

## Data & Methodology

_Primary-source statistics on Portugal property markets. INE median sale prices, house price indices, and rent series with full provenance records._

- [Methodology & sources](/methodology)
- [Greater Lisbon price data](/data/lisbon)
- [Porto price data](/data/porto)
- [House price index (national)](/data/hpi)
- [Download CSV data](/api/v1/catalog/)

## Calculators & Tools

_Interactive and server-rendered property cost calculators. All figures provenance-bound._

- [IMT calculator 2026 (both regimes)](/calculators/imt)
- [Total buying cost calculator](/calculators/total-cost)
- [IMT refund estimator (non-resident)](/calculators/imt-refund)

## Regional Guides

_Location-specific property data for Greater Lisbon and Porto. Sold vs asking prices, IMI rates, AL restrictions, neighbourhood data._

- [Greater Lisbon overview](/regions/lisbon)
- [Cascais](/regions/lisbon/cascais)
- [Oeiras](/regions/lisbon/oeiras)
- [Sintra](/regions/lisbon/sintra)
- [Porto overview](/regions/porto)