NM · 2026 appeal calendar

New Mexico Property Tax Appeal Deadlines 2026.

New Mexico property tax appeal deadlines and filing windows for commercial real estate. Verify with your local assessor or appeal board for the specific jurisdiction before filing.

Updated May 2026

Verify before filing. Statutory deadlines change, and many counties operate on their own schedule inside the state framework. Always confirm the current year's window with the assessor or appeal board for the specific jurisdiction before relying on a date.

2026 appeal calendar

New Mexico deadlines at a glance.

State-level deadlines plus major sub-jurisdictions where the schedule diverges from the state default. Where a column says "Varies," confirm the date with the local assessor.

Month Type Event Date Details
February BPP
Filing Deadline
End of Feb
April RP
Value Notices Issued
Feb-Apr Varies by County; Generally in April
Varies BPP
Value Notices Issued
Spring
May RP
Appeal Deadline
30-Apr 30 days from value notice date
Varies BPP
Appeal Deadline
Varies 30 days from value notice date

RP = Real Property · BPP = Business Personal Property · Both = Applies to both

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