Want Automatic Day Tracking?
Stop counting manually. Days in State uses GPS to track your state presence automatically.
Requires iOS 17.0 or later. iPhone only.
Interactive tools to help you understand multi-state tax residency rules, calculate day counts, and assess your compliance risk.
Search and compare residency day-count thresholds, domicile tests, and special rules for all 50 states.
Use This Tool →Enter your travel dates and see day counts per state. Know exactly where you stand against each threshold.
Use This Tool →Enter your income and two states to see the dollar impact of shifting your days between them.
Use This Tool →Track how close you are to the 183-day statutory residency threshold in any state.
Use This Tool →Enter your departure and return dates. See day counts for each state and flag any threshold crossings.
Use This Tool →Answer 10 questions about your situation and get a personalized residency audit risk score.
Use This Tool →Stop counting manually. Days in State uses GPS to track your state presence automatically.
Requires iOS 17.0 or later. iPhone only.