State Residency Rules → New Mexico

New Mexico Tax Residency Rules: The 185-Day Test

Day threshold
185 days
How days count
Any part of a day
Abode required
Days alone can trigger
Audit climate
Low audit activity

The rule in one paragraph

Physically present 185+ days makes you a resident for the year — regardless of domicile.

What counts as a day in New Mexico?

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 New Mexico’s actual test, and builds the audit-ready record that protects you. All on your iPhone — nothing leaves your device. Free for 30 days.

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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