Residence permits
How Not to Lose Your Green Card While Living Abroad (2026)
How long a green card holder can stay outside the US, what abandonment means, when you need a reentry permit, and how to protect your status — a 2026 guide.
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United States of America
Taxes & finance
US Dual Tax Residency: How Not to Be Taxed Twice
What to do if you're a tax resident of both the US and another country: the treaty tie-breaker, Form 8833, foreign tax credit, and the saving clause. 2026 guide.
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United States of America
Taxes & finance
Substantial Presence Test: US Tax Resident in 2026?
How to accidentally become a US tax resident: the three-year formula, which days don't count, and the closer connection exception (Form 8840). 2026 guide.
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Portugal
Visas
Portugal Residence Permit 2026: D7, D8, PR & Citizenship
A complete 2026 guide to Portugal residence permits: the D7 and D8 visas, income requirements, the new citizenship law, and the stay rules that protect your status.