Free is for research: side-by-side tax compare for up to 2 countries, 2026 data for 50+ countries, US state-level calc, and shareable results — no account required for the calculator. Premium adds the continuous residency system: trip logging, live Schengen 90/180 with what-if planning, threshold alerts before accidental tax residency, US FEIE vs FTC optimizer, special regime modeling, Audit Vault, and related planning tools.

The Residency Tracker lets you log international trips and maintains per-country day counts toward common tax-residency thresholds (often 183 days) plus rolling Schengen 90/180 totals. Pair it with alerts so an unexpectedly long stay doesn’t quietly make you a tax resident somewhere unintended.

Alerts use your logged travel pattern and watch list. When you’re approaching Schengen limits, visa-related stay caps, or configured tax-residency day thresholds, Premium surfaces warnings in the dashboard so you can adjust plans before you cross a line. Alerts are early warnings for planning — not filing advice.

Yes. The FEIE vs FTC Optimizer models US persons abroad choosing between the Foreign Earned Income Exclusion and the Foreign Tax Credit on the same income scenario, with bracket-level detail. Free users can use the standalone FEIE day-count tool; Premium adds the full election comparison. Always confirm elections with a licensed US tax professional.

Premium starts with a 7-day free trial, then $15/month or $120/year ($10/mo equivalent) via Stripe. Annual billing saves $60 vs paying monthly ($180/year). Cancel anytime from the billing portal; access continues through the end of the paid period. We run no ads on any tier.

No. You can run the calculator and share results without signing in. An account is needed to save comparisons, use the Residency Tracker, receive alerts, or access other Premium features.