TaxDays: Tax Residency Tracker
Expat & Nomad Tax Day Tracker
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
One wrong border crossing can trigger a tax bill. TaxDays makes sure that never happens.
If you split your year between countries, the difference between 182 days and 183 can cost you thousands. TaxDays tracks every crossing with precision, runs the calculations automatically, and warns you before you breach a residency threshold — not after.
Built for people who live differently
· Digital nomads managing 90-day visa windows
· US expats monitoring the Substantial Presence Test
· Colombia residents tracking their 183-day rolling window
· Mexico residents navigating calendar-year rules
What TaxDays does
· Logs every entry and exit — date, time, airport, airline, flight number
· Calculates your running day counts in real time, per country
· Shows your exact risk level before you make your next move
· Warns you before you cross a threshold, not after
· Visualises your full travel history on an interactive world map
· Exports a complete travel log your accountant can actually use
The math is harder than it looks
The US Substantial Presence Test isn't simple addition — it's a weighted formula across three calendar years. Colombia uses a rolling 365-day window, not a calendar year. Mexico counts days differently depending on your US treaty status. TaxDays does all of this correctly, automatically, every time you open the app.
Your data, always with you
Syncs across iPhone and iPad via iCloud. Export your full history as a JSON file. Works completely offline — no account required to get started.
Try free for 2 weeks. Then $17.99/year.
Less than $1.50 a month for travellers who can't afford to guess.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Dashboard risk indicators now use progressive color coding as you approach a threshold, so it's easier to see at a glance how much room you have left.
The Colombia 365-day planner insight card is now more compact and easier to scan.
Fixed a bug where the trip date field could get cut off during editing on some iPhone models.
General UI polish and stability improvements.
The developer, Sang Peiris, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Sang Peiris
- Size
- 32.6 MB
- Category
- Finance
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- TaxDays Premium $17.99
- TaxDays Premium Monthly $2.99
- Copyright
- © 2026 TaxDays