Cost of Crossing Turns Residency Anxiety Into a Calculator

Field notes

The homepage organizes five threshold questions rather than offering one generic day counter: New York’s 184-day statutory test, an NY-to-Florida snowbird limit, California’s nine-month presumption, the IRS substantial-presence test, and Schengen’s 90/180 window. It says each figure is tied to a dated primary source and distinguishes the Schengen calculation as immigration-related rather than tax-related. The site also explicitly limits its outputs to educational estimates rather than personalized advice.