Tax residency day tracking, jurisdiction by jurisdiction

Most US states and Canadian provinces define tax residency by days present — 183 days is common, but the counting rules differ. Day31 counts the days for you in every jurisdiction you touch, with alerts before you cross a threshold.

Pick your jurisdiction

64 jurisdictions — the 50 states, DC, US territories, and the Canadian provinces and territories.

Also see the substantial presence test calculator for the US federal day-count test, the 183-day calculator for the bright-line threshold, and Tax Residency 101 for the orientation.