Are you still a U.S. tax resident?
The Substantial Presence Test counts your days in the U.S. across three years, on a sliding scale. Enter your days to see where you stand, or find out how long you can stay this year without crossing the line.
Two things that trip people up
Even if the weighted total reaches 183, this test only applies when you’re present at least 31 days in the current year. Fewer than that and this particular test doesn’t catch you.
Crossing the line isn’t always the final word. Exceptions exist (a closer-connection claim, or a tax-treaty tie-breaker) that can change the outcome. Those are worth a professional’s eyes, not a calculator’s.
The day-count is step one. The strategy is the rest.
This tool runs the basic math. Whether an exception applies (a closer-connection claim, a treaty tie-breaker, excluded days) is a professional’s call. The $295 plan routes you to a vetted cross-border tax professional who makes it.