New Mexico's Three Property Tax Relief Mechanisms, Stacked

Updated August 2026

New Mexico runs three separate mechanisms that stack: a small universal exemption, a general cap on assessed value growth, and a separate value freeze for lower-income seniors and disabled homeowners.

Every New Mexico head of family can claim a flat exemption with no income test, and residential property generally benefits from a growth cap on assessed value. Seniors and disabled homeowners with modest incomes can additionally freeze their assessed value entirely.

New Mexico's Property Tax Relief Programs

Head-of-Family Exemption

What it does: A flat $2,000 reduction of taxable value, unchanged since 1993.

Who qualifies: Any New Mexico resident head of family. One per household, one county per year. No income test.

Deadline and form: Per your county assessor’s procedure (County assessor application). Citation: NMSA 1978 § 7-37-4.

General Valuation-Increase Cap

What it does: Value in any tax year cannot exceed the higher of 103% of the prior year’s value or 106.1% of the value two years prior. Does not apply in the property’s first year of valuation, after physical improvements, or after a change of ownership in the prior year.

Who qualifies: Residential property generally.

Deadline and form: N/A, automatic (N/A). Citation: NMSA 1978 § 7-36-21.2.

Low-Income Valuation Freeze (Age 65+/Disabled)

What it does: Freezes assessed value at the qualifying year’s level. Applied automatically after 3 consecutive qualifying years without annual re-filing.

Who qualifies: Age 65+ or disabled, with 2026 modified gross income at or below $44,200 (adjusted annually for inflation).

Deadline and form: Within 30 days of the date your assessor mails the notice of valuation (County assessor application). Citation: NMSA 1978 § 7-36-21.3.

An exemption or credit lowers your bill only after the assessed value is set. If that value is too high to begin with, you are overpaying on everything above it regardless of which relief programs you claim. Nobody checks the underlying value unless you do.

See what your county has your home on record at

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How to Apply

Contact your county assessor's (or, where noted above, your state revenue department's) office for the current application form
Gather proof of ownership, occupancy, and, for income-tested programs, your prior-year income documentation
File before the deadline listed above, most jurisdictions do not accept late applications for that tax year
Confirm the relief shows up on your next assessment notice or tax bill

The Bottom Line

The $2,000 head-of-family exemption is modest but universal. If you're a lower-income senior or disabled homeowner, the value freeze is the mechanism that actually matters, it stops your taxable value from growing at all rather than just capping the rate of growth.

Note: Program names, dollar figures, and income limits above are current as of August 2026 and are set or adjusted by the state legislature or department of revenue, not by AppealDesk. Some figures adjust annually, confirm the current-year number with your county or state before applying. AppealDesk helps homeowners identify available relief programs and appeal overassessments.

Most homeowners stack these programs on top of whatever value the assessor assigned and never question the value itself. It came from a mass-appraisal model, not an individual review of your home. It is worth checking once.

Check the value under your exemption

Enter your address to pull your county record free. If it looks too high, your $49 packet gives you everything to challenge it.