Guides & how-tos

Tax residency, day counting, and the rules that catch people out.

Clear, practical guides to the day-count rules that decide where you owe tax - and exactly how to track each one automatically with Tax Residency Tracker on iPhone.

Country Guides UK Statutory Residence Test: How Many Days Can You Stay? How the UK Statutory Residence Test decides your tax residence - the automatic overseas and UK tests, the sufficient-ties test, how days are counted at midnight, and how to track UK days on iPhone. 8 min read Country Guides Spain's 183-Day Rule and Tax Residency, Explained How Spain's 183-day rule works: the calendar-year count, temporary absences, the centre-of-economic-interests test, the family presumption, and tracking your days on iPhone. 8 min read Country Guides Portugal Tax Residency: The 183-Day Rule After NHR When you become a Portuguese tax resident: the 183-day rule over any rolling 12 months, the habitual-home test, and what NHR ending (and IFICI/NHR 2.0) means in 2026. 9 min read Country Guides UAE & Dubai Tax Residency: The 183-Day and 90-Day Rules How to become a UAE tax resident in 2026: the 183-day rolling rule, the 90-day route for HNWIs, the centre-of-interests test, and why a treaty TRC still needs 183 days. 9 min read Country Guides The Cyprus 60-Day Rule and Non-Dom Status, Explained How to become a Cyprus tax resident on just 60 days: the four conditions, the 183-day alternative, non-dom benefits, and the 2026 change that dropped the 'resident elsewhere' bar. 9 min read Country Guides Thailand's 180-Day Rule and Foreign-Income Remittance Tax When 180 days in Thailand makes you a tax resident, how the 2024 foreign-income remittance rule works, the pending 2026 changes, and how to prove your day count. 8 min read