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183-Day Tax
Residency Tracker
Log trips. We count days under each country's own rule, calendar year for Thailand and Spain, tax year for the UK and Australia, rolling 12 months for Portugal and the UAE, the Substantial Presence Test for the US. Warning at 30 days before threshold. All data stays in your browser, nothing is sent to a server.
Add a trip
Add trips above to see your day counts.
Day counts are one factor among several (home, family, economic ties). Country rules last verified 2026-07.