183-day rules by US state

Read the word beside the number: it changes the day you cross the line. More than a number means the number itself is still below that day-test line. At least a number includes the number itself. Two rows displaying the same number can therefore have different crossing dates.

The table gives you the threshold, comparison, day rule and confidence side by side. It includes every state and District of Columbia in the bundled rule set. Rows marked approximate retain that label visibly. They may have a month-based expression, an unstated day convention, or another part of the rule that cannot be reduced to a precise presence-day counter.

Do not convert a month expression into a guessed number of days. Months differ in length, and a rule about time maintaining an abode asks something different from a rule about days physically present. A row with no presence-day test is not a zero-day threshold. It means this table has no such line to count against for that jurisdiction.

Use dated records that show where you were, including travel days and short visits. If a state's convention counts any presence, a single date can contribute to more than one state. That makes the sum of state totals a different quantity from the number of elapsed calendar days in the year.

Keep the tax-year boundaries visible when reviewing a total. Moving an itinerary to another year changes which dates contribute to that year's count. The state table is about state presence rules; it should not be substituted for a US admission timeline or a federal physical-presence formula.

The confidence label tells you how precisely the rule can be counted; you still need to check your own circumstances. An exact day convention still leaves other tests outside the count. For an approximate row, read the linked source before planning around that number. Each state name in the table links to its source list below.

Passport Days keeps state presence separate from country stays and uses the bundled state rule for its counter. The state view tracks dates and presents the threshold where the pack has a reducible day test. Domicile, permanent-place-of-abode conditions and other factual tests are separate from that arithmetic. The table here uses those same rules, so you see the same thresholds, comparisons, day conventions and confidence labels as the app.