US Citizens in Portugal: FATCA, FBAR, and Annual IRS Obligations
Living in Portugal does not end your US tax filing obligations. Here's what American expats actually need to file, the traps that cost people thousands, and how to stay clean.
Tax Guides
NIF, tax residency, IRS deadlines, and when to get professional tax advice in Portugal.
This section explains the tax topics foreigners in Portugal usually need to understand first, including NIF, IRS, tax residency, deadlines, and where professional advice is important.
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Guides in this category
Practical guides ordered by the most recently updated.
9 guides
IRS Jovem Portugal 2026 Who Qualifies and How to Claim It
IRS Jovem Portugal 2026 explained for foreigners: who qualifies, the 10-year schedule, transitional rules, age cut-off, income cap, employer withholding and how to claim it.
Portugal Tax Calendar 2026 Key IRS IMI and e-Fatura Deadlines
Portugal tax calendar 2026 for foreign residents: key IRS, e-Fatura, IMI, IUC, recibos verdes and payment deadlines, including March review and 31 August IRS payment.
e-Fatura Portugal 2026 How to Validate Invoices for IRS
Learn how e-Fatura works in Portugal, the 2 March 2026 invoice deadline, the 16–31 March review window, IRS deductions, rent, pharmacy rules and common mistakes.
Capital Gains Tax on Property, Stocks & Crypto in Portugal 2026
Understand Portugal capital gains tax in 2026, including property, stocks, crypto, exemptions, reinvestment rules, and what foreign residents should check.
UK & US Tax Treaties Portugal (2026): How Pensions Are Taxed
Clear 2026 guide to how UK and US pensions are taxed in Portugal, including private pensions, State Pension, Social Security, NHR, IFICI, and Modelo 3 filing.
Portugal Non Habitual Resident NHR 2.0 IFICI Explained in 2026
Portugal's NHR (Residente Não Habitual) regime has changed. Learn what happened to NHR, how the IFICI replacement works and what to check in 2026.
How to Use Portal das Finanças in Portugal
A practical Portal das Finanças guide for foreigners: password, login, tax address, e-Fatura, IRS, certificates, and what not to submit blindly.
IRS Portugal for Foreigners: Simple Tax Return Guide
A practical IRS Portugal guide for foreigners: who needs to file, deadlines, tax residency, foreign income, Anexo J, e-Fatura, englobamento and common mistakes.