Tax Residency Tracker for iPhone
Tax Residency Tracker counts your days automatically with GPS and watches every threshold that matters - the 183-day rule, Schengen 90/180, the US Substantial Presence Test and US state residency. Private, offline, and export-ready.
Who it’s for
If where you spend your days decides where you owe tax, guessing is expensive. Tax Residency Tracker keeps an accurate, provable count so you cross the right lines on purpose.
Bounce between countries without accidentally triggering residency in one of them.
Prove non-residence in your old country and residence in your new one, day by day.
Stay under Schengen 90/180 and every visa-free limit without spreadsheet maths.
Split time across US states and keep statutory-residency days below the line.
Hand your advisor a clean, dated CSV with proof documents - not a shoebox of receipts.
Move between two homes each year and keep each residency count exactly where you want it.
How it works
Turn it on once. The app watches your location, counts every day the right way, warns you before a threshold, and hands your accountant a clean export.
Enable location and the app detects border and state crossings in the background - even when it’s closed - and creates a dated stay for you. Prefer to do it by hand? Add, edit and delete stays with country, dates, transport and notes.
See each rule at a glance: countries that have crossed 183 days, your rolling Schengen 90/180 window, and the weighted US Substantial Presence Test. Choose the day-counting mode - calendar day, midnight rule, full 24-hour day, or overnight stay.
Split your time across the US? Track days by state in parallel with countries, with per-state thresholds and a live remaining-days count - so California, New York or DC never sneak past the statutory-residency line while you weren’t looking.
Pick a tax year, a quick range, or a custom period and export your stays and daily records as CSV - with proof documents attached. Everything generates on-device and is shared only by the method you choose.
Threshold alerts
The dangerous day is the one you did not see coming. Tax Residency Tracker schedules private, on-device alerts as you approach each threshold, so you can change plans while it still matters, not after you have already triggered residency.
Screenshots
A clean, fast interface designed for one thing: knowing exactly where you stand, in every country and state, right now.
Features
Automatic tracking, every major residency rule, and private, offline records - with the export your accountant actually asks for.
The 183-day rule, Schengen 90/180 and the US Substantial Presence Test - all calculated in real time as your days accrue.
Detects border and state crossings and builds your stays in the background.
Add future trips and see how they’ll move each threshold before you book.
Calendar day, midnight rule, full 24-hour day or overnight - match any rule.
The official rolling-window calculation with clear visual warnings.
Track days by US state with statutory-residency thresholds, alongside countries.
Country ranking, a monthly chart, year-over-year comparison and a visited-countries globe.
Set your tax year start so counts match the UK 6 April year, US states, or anywhere else.
An interactive calendar with daily country flags, a live location map, and a globe view of everywhere you’ve been.
Attach receipts and boarding passes to stays; export stays and days as CSV.
All data stays on your device. No cloud tracking, no data collection, ever.
Move data to a new device via your own private iCloud. Works fully offline.
Fill the gaps automatically with your home country or state when you were not actively tracked.
Guides & how-tos
Plain-English guides to the day-count rules that decide where you owe tax - each one shows exactly how to stay on the right side of it with the app. Browse all guides →
FAQ
The rules people get wrong most often - and where to read more.
Most countries treat you as a tax resident once you spend 183 days or more there in a tax year - and any part of a day usually counts as a full day. Some use a rolling 12-month window rather than a calendar year, and a few add ties like a home or family. Tax Residency Tracker counts every day per country automatically and shows how close you are to each 183-day line.
Learn how the 183-day rule worksThe Schengen rule is not a calendar limit - it is a rolling 180-day window. On any given day you may not have spent more than 90 days inside the Schengen Area in the previous 180. The app runs the official rolling-window calculation continuously and warns you before you approach 90 days.
Open the Schengen 90/180 guideThe IRS Substantial Presence Test decides US tax residency using a weighted 3-year count: all of the current year’s US days, one-third of last year’s, and one-sixth of the year before. Reach 183 weighted days (with at least 31 in the current year) and you are generally a US tax resident. The app computes the weighted total for you.
See the Substantial Presence Test guideMany US states apply a 183-day statutory-residency test alongside a permanent home (abode). New York, for example, makes you a statutory resident at 184 days with an abode, and any part of a day generally counts. Tax Residency Tracker tracks your days by US state in parallel with countries, with per-state thresholds.
Track state residency daysThe UK uses the Statutory Residence Test, not a flat 183 days. Depending on your ties and recent history the threshold can be as low as 16 or 46 days, and you count days where you are in the UK at midnight. The app records each UK day so you always know where you stand against the SRT.
Read the UK residence test guideDifferent rules count days differently: the midnight rule (where you sleep), the calendar-day rule (any part of a day counts), a full 24-hour day, or an overnight stay. Getting the method wrong can shift your total by weeks. The app lets you pick the counting mode that matches the rule you care about.
Compare day-counting methodsIn a residency audit the burden of proof is on you, and undocumented days are often counted against you. Tax Residency Tracker keeps a dated location history and lets you attach boarding passes, receipts and documents to each stay, then export a clean CSV with attachments for your accountant.
Prepare for a residency auditTax Residency Tracker is free to download and includes manual and automatic day tracking, the residency threshold dashboard, and alerts. A subscription (Weekly, Monthly, or Lifetime, processed by Apple) unlocks the day-counting modes and the CSV data export. See the Subscription Services terms below for exact pricing and renewal details.
Read the subscription termsYes. Everything is processed and stored locally on your device - your stays, location history and documents are never sent to our servers or shared with anyone. Optional iCloud sync keeps data inside your own private iCloud account. You can turn location off any time.
Read the privacy policy
Download Tax Residency Tracker and know exactly where you stand against every 183-day line, automatically, on your iPhone.
Questions? contact@taxresidencytracker.com
Last Updated: 2025-10-16