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.

Digital Nomads Digital Nomad Tax Residency: A Practical Guide Where do digital nomads actually pay tax? How the 183-day rule, Schengen 90/180, ties and the resident-nowhere myth apply to nomads in 2026 - and how to track every country and threshold automatically on iPhone. 8 min read Digital Nomads How to Prove Your Days in a Residency Audit In a residency audit the burden of proof is on you, and undocumented days are counted against you. What evidence proves where you were, and how to keep an audit-ready day log and documents on iPhone. 7 min read Digital Nomads The Best Way to Track Your Days in a Country for Taxes Spreadsheets, calendars, or a dedicated app? What to look for in a tool that tracks your days in a country for taxes - automatic detection, every residency rule, exports and privacy - and how Tax Residency Tracker measures up. 7 min read Digital Nomads Get Warned Before You Cross a Tax-Residency Threshold Don't find out you're tax resident after the fact. Set threshold alerts for the 183-day rule, Schengen 90/180, the US Substantial Presence Test and US states on iPhone. 8 min read Digital Nomads Changing Your Tax Residency: A Guide for Snowbirds and Movers Moving states or countries mid-year, or splitting time as a snowbird? How to count days on both sides, prove the switch date, and avoid dual residency. 9 min read