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Tax forms, a folder and a calculator laid out on a desk

Becoming a Tax Resident in Portugal in 2026 — A Practical Guide to the 183-Day Rule, the Tax Domicile (Domicílio Fiscal), Double-Tax Treaty Tie-Breakers and the Tax Residency Certificate (Certificado de Residência Fiscal)

How you actually become a tax resident of Portugal: the 183-day rule, the habitual-home test, part-year residency, why domicílio fiscal is not the same thing, double-tax-treaty tie-breakers and how to get a certificado de residência fiscal.
The Portugal Brief
Sunlit Alentejo hillside with olive trees under a hot sky — IPMA's Saturday outlook calls 35°C in the Alentejo Sun-Tue under a North African air mass.

IPMA Forecasts 35°C in the Alentejo and Tejo Valley From Sunday Through Tuesday as a North African Air Mass Drives the First Sustained Heat Spell of 2026 — DGS Reissues the Mid-Day Sun Advisory and Hydration Note Into the Long Weekend

IPMA's Saturday-evening outlook calls 35°C across the Alentejo and Tejo Valley between Sunday and Tuesday as a North African air mass with Saharan dust drives mainland Portugal's first sustained heat spell of 2026 — DGS reissues the hydration and mid-day sun advisory ahead of the long weekend.
The Portugal Brief
Interior of a brightly-lit supermarket aisle with stocked grocery shelves — Mercadona confirms €150M and twelve new Portuguese stores for 2026.

Mercadona Commits €150 Million and Twelve New Portuguese Stores for 2026 — Algarve and Beja Districts Debut at Portimão, Faro and the Beja Retail Park as the Spanish Chain Targets 81 Outlets by Year-End

Mercadona has detailed a €150 million Portuguese investment that opens twelve new stores in 2026, drops the brand into the Algarve and Beja districts for the first time and takes the chain's national footprint to 81 outlets covering 16 of 18 mainland districts.
The Portugal Brief
Jean Barroca Confirms Undeclared High-Income Foreigners Are Drawing the Tarifa Social de Eletricidade — Government Will Tighten the 2016 Auto-Assignment Rules After IEA Flags 760,000 Households, the Same Count as Spain at a Quarter of the Population

Jean Barroca Confirms Undeclared High-Income Foreigners Are Drawing the Tarifa Social de Eletricidade — Government Will Tighten the 2016 Auto-Assignment Rules After IEA Flags 760,000 Households, the Same Count as Spain at a Quarter of the Population

Energy Secretary of State Jean Barroca said on Friday that high-income foreigners who do not declare income in Portugal are drawing the tarifa social de eletricidade through automatic enrolment. With 760,000 households enrolled — identical to Spain — the rules will be tightened.
The Portugal Brief
Getting Married in Portugal as a Foreigner in 2026 — Civil Ceremonies, the Conservatória do Registo Civil, the Certificado de Capacidade Matrimonial, Same-Sex Marriage, and the Property Regimes That Decide Who Owns What

Getting Married in Portugal as a Foreigner in 2026 — Civil Ceremonies, the Conservatória do Registo Civil, the Certificado de Capacidade Matrimonial, Same-Sex Marriage, and the Property Regimes That Decide Who Owns What

Marrying in Portugal is, for most foreign couples, less complicated and less expensive than the same procedure back home. The civil ceremony has been the dominant form since 1910, the State recognises three modalities (civil, Catholic religious, and...
The Portugal Brief