How Tax Days compares
Every major tax residency tracker, honestly compared on price, privacy, and rule coverage. Tax Days is $19.99/year, on-device, and tracks automatically or manually, your choice. Here's how it stacks up against each alternative.
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Snowbird-tracking app with background GPS auto-detection of state crossings, multi-platform availability, and a focus on US-only domestic residency tracking.
Long-running residency-tracking service used by accountants serving snowbirds and cross-border workers, with background GPS, multi-platform access, and accountant-shareable accounts.
Long-running enterprise residency tracker with background GPS, audit-defense services, and white-glove support, built for ultra-mobile UHNW individuals and family offices.
Enterprise global mobility platform (formerly Equus and Polaris) sold to corporate HR teams managing thousands of internationally-mobile employees, with relocation, immigration, payroll-tax, and compliance features.
Newer entrant with a privacy-marketed background GPS tracker covering US states/territories, Canadian provinces, and international locations, plus a free calculator micro-site and risk-scoring/predictive alerts.
Manual day tracking in Google Sheets or Excel, free, flexible, and entirely dependent on you remembering to update it correctly every single trip.
Pricing at a glance
Tax Days is $19.99/year across the board. Here's what each alternative costs and who it's built for, click through for the full feature breakdown.
| App | Price | Best for | |
|---|---|---|---|
| Tax Days | $19.99/year | International + US travelers who want no background location access. | Get Tax Days → |
| TaxBird | $39.99 / year | Android users (Tax Days is iPhone-only). | View → |
| Domicile365 | ~$220 / year | Multi-platform users (Android, web). | View → |
| Monaeo | $999 / year | Ultra-mobile UHNW individuals with multi-jurisdiction tax exposure. | View → |
| Topia | Enterprise pricing | Corporate HR teams managing 100+ international assignees. | View → |
| iReside | $34.99 / year | Canadian snowbirds who need province-level tracking specifically. | View → |
| a Spreadsheet | Free (your time + audit risk) | One simple jurisdiction with a generous day limit you'll never approach. | View → |
Frequently asked questions
How does Tax Days compare to other tax residency trackers?
Tax Days is the only app in this category that covers US states, the federal Substantial Presence Test, Schengen 90/180, and the UK SRT in one place at $19.99/year. It's also the only one that lets you choose: automatic background tracking or manual trip entry, with the location history staying on your device either way. Most competitors specialize in one region (US-only or enterprise-only) and require continuous location tracking synced to their servers. See the individual comparisons below for the specifics.
Which tax residency tracker is cheapest?
Tax Days is the least expensive app-based option at $19.99/year, with a free tier for limited rules. TaxBird ($39.99/year) and iReside ($34.99/year) are the next cheapest, followed by Domicile365 (~$220/year). Monaeo ($999/year) and Topia (custom enterprise pricing) are priced for high-net-worth individuals and corporate mobility teams respectively.
Do I need GPS tracking for tax residency?
No, and you shouldn't have to choose between automation and privacy. GPS-based apps (TaxBird, Domicile365, Monaeo, iReside) infer your day count automatically from your phone's location, which is convenient but means continuous location data on a vendor's servers. Tax Days offers automatic tracking on Pro using battery-efficient significant-change monitoring, processed entirely on-device, and it proposes trips for you to confirm. You can also turn location off completely and log trips by hand.
Should I just use a spreadsheet instead of an app?
A spreadsheet can work for one simple jurisdiction with a generous threshold you'll never approach. It breaks down with multiple jurisdictions, partial-day rules, or rolling windows like Schengen 90/180, and auditors tend to trust a tested app's contemporaneous log over a hand-maintained file. See the full spreadsheet comparison below.
Ready to try Tax Days?
$19.99/year. No accounts. No tracking. Free tier with limited rules.