Visa and Tax Residency Day Limits
Almost every travel rule comes down to counting days: how long you can stay before a visa runs out, and how long before a country or US state treats you as a tax resident. This is the map of those rules, with how to calculate each and the official source.
By Country
The day threshold and counting window that can make you a tax resident, country by country.
15+ countries → Tax residencyBy US State
Statutory residence, day counts, and the home-plus-days basis for each state.
21 states →Visa and entry limits
How long you can stay on a visa or visa-free entry, and how the windows are counted.
Residency and tax presence
When time in a place turns into tax residency. Start with the directories above, or the core explainers.
Counting fundamentals
The rules behind the rules: what actually counts as a day.
One app for every day limit
AtlasDays keeps a private travel record on your iPhone and counts your days against visa caps and residency thresholds at once, warning you before you cross any line.
Get AtlasDays on the App Store