TaxDays

TaxDays helps expats, digital nomads, and frequent travelers avoid accidentally triggering tax residency in a country they didn't mean to.

Log your trips and TaxDays automatically tracks your days against the rules that actually matter:

Colombia — 183-day rolling window rule
Mexico — 183-day calendar year rule
United States — Substantial Presence Test
United States — Foreign Earned Income Exclusion (FEIE) physical presence test

FORWARD-LOOKING WARNINGS
TaxDays doesn't just look backward at where you've already been. It looks forward at your booked travel plans too. If a future trip would push you past a residency threshold, TaxDays warns you before it happens — across every screen where it matters, not buried in a report you have to go dig up.

WHY IT MATTERS
Cross certain day thresholds in a country and you may unknowingly trigger local tax residency, with real consequences for your tax filings. TaxDays gives you a clear, real-time picture of exactly where you stand, so you can plan travel with confidence instead of guessing or reconstructing your trip history at tax time.

FREE TO START
Log up to 2 trips and see full compliance calculations for free — no account or sign-in required.

TAXDAYS PRO UNLOCKS

Unlimited trip logging
All country compliance calculations
Cloud sync across your devices
Interactive world map with country-by-country status
Export and import your trip data as a backup file

PRIVACY
Your trip data stays private. On Android, optional cloud sync uses your own Google account; on iOS, it uses your own iCloud account. TaxDays LLC never accesses or sells your data. Full details at taxdays.me/privacy.

TaxDays is built by a technical co-founder who needed exactly this tool while living the expat/digital nomad life himself — not a generic template dressed up as a tax app.

That last line is optional flavor — cut it if you'd rather keep things purely functional. Let me know if you want any of the feature emphasis adjusted.