Tax Days vs. Domicile365
Domicile365 has been a staple in the category for years, especially among accountants serving snowbirds. Tax Days takes the same problem and brings it to the iPhone with privacy as a first-class concern. (Pricing below is Domicile365's published rate as of mid-2026, confirm the current number on their site before buying.)
Pricing at a glance
Privacy-first iPhone app. No accounts, no servers. Optional iCloud sync via Apple's encrypted CloudKit.
Long-running residency-tracking service used by accountants serving snowbirds and cross-border workers, with background GPS, multi-platform access, and accountant-shareable accounts.
Feature comparison
| Feature | Tax Days | Domicile365 |
|---|---|---|
| Annual cost | $19.99/year | $19.99/mo (~$220/year on the annual plan) |
| Free tier | Yes | Trial only |
| Tracking method | Automatic background tracking (Pro) or manual entry | Background GPS only (~15-minute increments) |
| Data location | On your iPhone + optional iCloud | Domicile365's servers (account-based) |
| US states | All 50 with state-specific rules | All 50 |
| Schengen 90/180 | Yes | Limited |
| UK SRT | Yes | Limited |
| International rules | 200+ countries, 80+ rules | US-focused |
| Audit reports | Per-jurisdiction PDF export | Reports + CSV export |
| Platform | iPhone (iOS 26+), Mac via Catalyst | iOS, Android, web |
Which one is right for you?
Tax Days is best for…
- iPhone users who want privacy by design.
- International travelers tracking Schengen, SPT, UK SRT, etc.
- People who want to pay $20/year instead of $200.
- Anyone with no need for a vendor account or shareable login.
Domicile365 is best for…
- Anyone who needs cryptographic verification of the location record.
- Multi-platform users (Android, web).
- Accountants who want shared client accounts.
- Pure-domestic US snowbirds without international rules.
Bottom line: Domicile365 fits accountants and multi-platform users; Tax Days fits iPhone users who travel internationally. The price gap is large, and so is the international rule coverage.
Frequently asked questions
Is Tax Days cheaper than Domicile365?
Yes. Tax Days is $19.99/year flat. Domicile365's individual plan is $19.99/month, which works out to roughly $220/year on the annual option (one bonus month included), after a 60-day free trial.
Does Domicile365 cover international rules like Schengen or the UK SRT?
Domicile365 has some international location monitoring but its Schengen and UK SRT support is limited compared to Tax Days, which runs the full 90/180 Schengen rolling window and the UK Statutory Residence Test alongside 80+ rules across the countries it covers.
Can I share my Domicile365 data with my accountant?
Yes, Domicile365 is built with accountant-shareable accounts and a CPA portal in mind. Tax Days exports a per-jurisdiction PDF you can hand to your accountant, but doesn't offer a live shared login.
Does Domicile365 use background GPS?
Yes, Domicile365 records location in roughly 15-minute increments using background GPS, stored against your account on its servers. Tax Days offers automatic tracking too on Pro, but it uses significant-change monitoring rather than a fixed interval, proposes trips for you to confirm, and keeps the location history on your device. You can also turn location off entirely and log trips by hand.
Is Domicile365 available on Android and the web?
Yes, Domicile365 supports iOS, macOS, Android, and a Windows tray app. Tax Days is iPhone-only (with a Mac Catalyst build), so multi-platform households may prefer Domicile365.
When is Domicile365 the better choice?
Domicile365 makes sense if you want an accountant-shareable account, multi-platform access, or you're a pure-domestic US snowbird who doesn't need international rule coverage.
Ready to try Tax Days?
$19.99/year. No accounts. No tracking. Free tier with limited rules.