State Residency Rules → Idaho

Idaho Tax Residency Rules: The 271-Day Test

The rule in one paragraph

Keeping an Idaho abode the entire year AND spending more than 270 days makes you a resident.

The details

Both conditions must be met — the day count alone doesn't trigger residency, and neither does the abode alone.

What counts as a day in Idaho?

Any part of a day spent in the jurisdiction generally counts as a full day toward the test — landing at 11 p.m. counts the same as a full day. Most states apply a narrow exception for pure travel through the state.

Count your days automatically

DayLine tracks which state you’re in every day, counts your days against Idaho’s actual test, and builds the audit-ready record that protects you. All on your iPhone — nothing leaves your device. Free for 30 days.

Related jurisdictions

This page provides general educational information about residency rules, verified against state statutes and administrative guidance at the time of writing. It is not tax, legal, or accounting advice; rules change and residency determinations depend on your complete circumstances. Consult a qualified tax professional.  ·  All jurisdictions  ·  DayLine home