Count your days. Keep your freedom.
A calculator for the thresholds that shape a life lived across borders — the Schengen 90/180 rule, 183-day tax residency, the UK SRT, and US-state & Canada day limits. Add your trips; see exactly where you stand.
- Days used
- 30 / 90
- Budget left
- 60 days left
- Window
- DEC 28 – JUN 25
Informational estimate, not legal advice. Border rules have exceptions (transit, family, work). Always verify with the relevant authorities. Powered by Countly.
Six rules, one honest engine.
This calculator runs the exact day-counting engine inside the Countly app — the same conservative conventions a border officer uses (arrival and departure days both count; Schengen accession dates respected). Switch modes above to count against any of these:
Schengen 90/180 →
At most 90 days in any rolling 180-day window across the whole Schengen Area. Resident of a Schengen country? Mark it and your home days stop spending the budget.
183-day tax residency →
Days in one country toward the 183-day line for a calendar year — the most common path to becoming a tax resident.
Rolling 12 months
Presence over any rolling 365-day window — the maths behind many settlement and naturalisation routes.
UK 90 days →
Days in the UK against a 90-day line, measured over the UK tax year (6 April – 5 April), as used in the Statutory Residence Test.
US state & NYC →
Statutory-residency day counts for NY, NJ, CT, MA, PA and New York City (over 183), plus California’s nine-month (~274-day) presumption.
Canada 183 →
Days in Canada toward the federal 183-day deemed-residence line for the calendar year.
Tired of doing this by hand?
Countly counts these days for you — automatically and privately, straight from your phone. It watches every threshold in the background, so none of them ever takes you by surprise.
Questions, answered.
How does the Schengen 90/180-day rule work?
It is a rolling window, not a fixed block. On any given day you may have spent at most 90 days inside the Schengen Area across the previous 180 days. Both your arrival and departure days count as full days, and the 90 days are shared across every Schengen country — moving between them does not reset the count. As older days fall out of the 180-day window, that allowance comes back.
Is the 183-day rule the same in every country?
No. 183 days is a common threshold, but the exact number, the reference period (calendar year, tax year, or a rolling 12 months), and how a day is counted are set by each country’s own law and tax treaties. Some places can make you tax-resident with fewer days through other ties. This calculator shows a clear day count; always confirm the legal test with official sources or a qualified adviser.
How do US state and New York City residency days work?
Several US states — New York, New Jersey, Connecticut, Massachusetts and Pennsylvania — apply a statutory-residency test: spend more than 183 days in the state while keeping a permanent home there and you can be taxed as a resident. New York City applies its own version. California has no bright-line day rule; instead, more than nine months (about 274 days) creates a rebuttable presumption of residency. Pick your state above to count against the right threshold.
What is the Canada 183-day rule?
If you are present in Canada for 183 days or more in a calendar year, you can be deemed a resident for tax purposes for the whole year — unless a tax treaty says otherwise. Residential ties can also make you a resident with fewer days. The calculator’s Canada mode counts toward that 183-day line (it warns once you pass the last safe day, 182).
Do entry and exit days count?
For the Schengen rule, yes — both the day you arrive and the day you leave count as full days, which is the conservative reading every border guard applies. This calculator follows the same convention, so it never under-counts your days.
Is this calculator private?
Completely. Everything is computed in your browser — no account, no upload, no tracking of your trips. Nothing you type ever leaves your device. The Countly app works the same way: the counting happens locally, and your history stays with you.