Whether you travel frequently, split time between multiple homes, or simply cross state lines often, TaxDay takes the guesswork out of tax residency tracking. It automatically logs your travel using your phone’s location - accurately recording physical presence, and for how long, in each U.S. state.
TaxDay builds a secure, time-stamped travel record, applying state-specific residency rules in real time. You will receive smart alerts when you are approaching critical thresholds - like the 183 days rule so you can make informed decisions before you unintentionally establish tax residency in a state.
There is no need to remember where you were or when; you get automatic, hands-free tracking, precise summaries of your taxable days, and exportable reports that make filings, audits, or working with your accountant a breeze.

Key Features:
Effortless GPS-based travel tracking
At-a-glance summaries of taxable days in each state
Real-time alerts when you're close to state residency limits
Add receipts or documents to travel entries
Export detailed travel reports for your tax advisor

No All Files Access required.
We never request full file access. You can securely attach receipts or documents using Android’s standard file picker, in full compliance with Google’s file access policies.
Smarter tracking, less battery.
TaxDay uses your device’s motion sensors (with your consent) to detect when you are on the move activating background location updates only when needed, so you get reliable tracking with minimal battery impact.

Get Started in Minutes:
Try TaxDay free for 15 days
Subscribe for $9.99/month via your Google Play account
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TaxDay – Peace of Mind, For the State You’re In

Sources & Disclaimer:
TaxDay references publicly available information from official government resources (.gov domains) to help users understand residency thresholds and presence tests.

Source information for referenced tax requirements can be found here:
https://www.irs.gov/individuals/international-taxpayers/substantial-presence-test
https://www.irs.gov/individuals/international-taxpayers/residency-starting-and-ending-dates
https://www.irs.gov/businesses/moving-to-or-from-a-united-states-us-territorypossession

Disclaimer:
TaxDay is not affiliated with, endorsed by, or associated with any government entity and does not provide official government services.
All content is based on publicly available information and provided for general educational purposes only.
TaxDay is an independent tool designed to support your tax planning - actual tax decisions should always be made with a trusted professional.