AppealDesk

Luna County Property Tax Appeal, New Mexico

Travis BunnTravis Bunn·Updated July 22, 2026

Luna County is located in southwestern New Mexico along the Mexican border, with Deming serving as the county seat. The county has a population of approximately 25,400 residents as of 2025, with Deming being the largest city (population 14,928) followed by the village of Columbus (population 1,622). Luna County has one of the lowest property tax burdens in the United States, with a median annual tax bill of just $458 compared to the national median of $2,400, making property tax appeals less common but still valuable for overassessed properties. The county's effective tax rate of 0.50-0.71% is significantly below both the New Mexico state average of 0.67% and the national average of 1.02%.

Notable cities: Deming, Columbus

Median Home

$128,000

Tax Rate

0.50-0.71%

Annual Tax

$458

Population

25,400

On the typical Luna County home, valued near $128,000 at the county’s effective tax rate of 0.50-0.71%, an over-assessment of even 10% means you are overpaying year after year until you appeal it. Here is how to find out if yours qualifies.

2026 Appeal Deadline: Within 30 days of receiving your Notice of Value (typically mailed around April 1, making the deadline approximately May 1, 2026)

New Mexico law requires that property tax appeals be filed within 30 days of the mailing of the Notice of Value pursuant to Section 7-38-24 NMSA 1978. Since notices are typically mailed around April 1st each year, the appeal deadline generally falls around early May, though it varies slightly depending on when your county mails notices. Missing this deadline means you must pay the tax and file a claim for refund in District Court, which is much more expensive and time-consuming.

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How Luna County Assesses Property

33.33%of market value

Assessed by: Luna County Assessor's Office

Assessment cycle: annual

Notices typically mailed: April (around April 1st)

New Mexico assesses residential property at exactly one-third (33.33%) of market value, which is the lowest assessment ratio in the United States. For example, if your home's market value is $128,000 (Luna County's median), your assessed value would be $42,624 (128,000 × 0.3333). At Luna County's effective tax rate of approximately 0.50%, this results in an annual property tax bill of approximately $213.

The Appeal Process

Appeals are heard by the County Valuation Protest Board. The County Valuation Protest Board will review your evidence and the assessor's valuation. You should present comparable sales data, photographs, and any documentation of assessment errors. The Board wants to see objective data, not opinions, and typically reviews 3-5 comparable sales from the last 6-12 months.

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Step 1: Review your Notice of Value carefully when it arrives (typically mailed around April 1st). Compare your property's assessed market value to recent sales of comparable homes in your neighborhood.

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Step 2: Consider requesting an informal review with the Luna County Assessor's Office before filing a formal appeal. This informal process can often resolve assessment disputes without a formal hearing. Contact the Assessor at 575-546-0404 to schedule an informal review.

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Step 3: Gather supporting evidence for your appeal, including 3-5 comparable sales of similar properties sold within the last 6-12 months, photographs documenting property condition issues, repair estimates for any defects, and documentation of any assessment errors (incorrect square footage, features, or lot size).

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Step 4: File your formal written protest with the Luna County Assessor's Office within 30 days of receiving your Notice of Value. Include all supporting documentation with your initial filing. You can file in person at 700 South Silver Avenue, Deming, NM 88030, or mail to P.O. Box 551, Deming, NM 88031.

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Step 5: Your appeal will be scheduled for a hearing before the County Valuation Protest Board. Attend the hearing and present your evidence showing that your property's market value is lower than the assessed value. The Board will review your evidence and issue a decision.

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Step 6: If you disagree with the County Valuation Protest Board's decision, you can appeal to the New Mexico District Court. This is a more formal legal process and you may wish to consult an attorney.

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Step 7: As a final option, if you are dissatisfied with the District Court's decision, you may appeal to the New Mexico Court of Appeals, though this is rare for property tax matters.

Required form: Formal written protest or appeal form (available from Luna County Assessor's Office at 575-546-0404)

Filing Methods

in-person:Luna County Assessor's Office, 700 South Silver Avenue, Deming, NM 88030
mail:Luna County Assessor, P.O. Box 551, Deming, NM 88031
phone:Call 575-546-0404 to request appeal forms and information

Evidence to Bring

Comparable sales data (3-5 similar properties sold recently for less than your assessed value)Photographs documenting property condition issues or defectsRepair estimates for any damage or needed repairsDocumentation of assessment errors (incorrect square footage, features, or lot size)Recent independent appraisal (if available)Market analysis showing declining property values in your area

Luna County Assessor Contact

Luna County Assessor's Office

Phone: 575-546-0404

Address: 700 South Silver Avenue, Deming, NM 88030 (Mailing: P.O. Box 551, Deming, NM 88031)

Website: https://www.lunacountynm.us/departments/assessor/index.php

Hours: Monday-Friday: 7:00 AM - 5:00 PM (some sources indicate 8:00 AM - 5:00 PM)

Tax Exemptions in Luna County

Head of Household/Homestead Exemption

$2,000 off assessed value (approximately $60 annual savings at Luna County's tax rate)

Reduces the taxable value of your primary residence by $2,000

Eligibility: Must own and occupy the property as your primary residence and be a New Mexico resident. One exemption per household.Deadline: No specific deadline; can be filed anytime with the Assessor's Office

Veteran Property Tax Exemption

$10,000 off taxable value (increased from $4,000 in 2025, with automatic annual inflation adjustments)

Exempts up to $10,000 of taxable value for honorably discharged veterans or their unmarried surviving spouses

Eligibility: Must be an honorably discharged veteran or unmarried surviving spouse who is a New Mexico resident. Property must be owned by the veteran or surviving spouse.Deadline: Last day of February annually

Disabled Veteran Property Tax Exemption

Percentage of property tax equal to disability rating (e.g., 60% VA disability = 60% property tax exemption; 100% disability = full exemption)

Provides a property tax exemption proportional to the veteran's VA disability rating (effective 2026)

Eligibility: Must be a resident disabled veteran with a service-connected disability rating from the VA and honorable discharge. Also available to unremarried surviving spouse. Property must be occupied as principal residence.Deadline: Contact Assessor's Office or NM Department of Veterans' Services at 866-433-8387

Senior/Disabled Valuation Freeze

Property value frozen at 2001 level, year of turning 65, or year of first occupation (income threshold of $40,400-$44,200)

Freezes property value at a specific level for seniors age 65+ or disabled individuals

Eligibility: Single-family dwelling owners age 65+ or disabled with previous year's modified gross household income of $40,400 or less (some counties use $44,200 for 2026)Deadline: April 1st annually for first three years; continues automatically thereafter

Luna County Appeal Packet — $49

Comparable sales evidence, county-specific filing guide, and professional cover letter. Enter your address to get started.

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Frequently Asked Questions

What is the deadline to appeal my property taxes in Luna County for 2026?
Luna County property tax appeals must be filed within 30 days of receiving your Notice of Value, which is typically mailed around April 1st each year. This means the appeal deadline generally falls around May 1, 2026, though the exact date depends on when your specific notice was mailed. New Mexico law (Section 7-38-24 NMSA 1978) strictly enforces this 30-day window. If you miss this deadline, your only option is to pay the tax and then file a claim for refund in District Court, which is significantly more expensive and time-consuming than the standard appeal process.
How do I file a property tax appeal in Luna County?
To file a property tax appeal in Luna County, first contact the Luna County Assessor's Office at 575-546-0404 to request an appeal form or consider an informal review. Gather supporting evidence including comparable sales data, photographs of property issues, and repair estimates. Submit your formal written protest to the Luna County Assessor's Office at 700 South Silver Avenue, Deming, NM 88030, or mail it to P.O. Box 551, Deming, NM 88031, within 30 days of receiving your Notice of Value. Include all supporting documentation with your initial filing. Your appeal will then be scheduled for a hearing before the County Valuation Protest Board.
What is Luna County's homestead exemption worth?
Luna County offers New Mexico's standard Head of Household homestead exemption, which reduces your property's taxable value by $2,000. At Luna County's effective tax rate of approximately 0.50%, this exemption saves eligible homeowners about $60 per year. To qualify, you must own and occupy the property as your primary residence and be a New Mexico resident. This exemption is available to all qualifying homeowners, and there is no specific filing deadline. You can apply at any time by contacting the Luna County Assessor's Office at 575-546-0404 or visiting their office at 700 South Silver Avenue in Deming.
What happens at a County Valuation Protest Board hearing in Luna County?
At a County Valuation Protest Board hearing in Luna County, you will present evidence supporting your claim that your property's assessed market value is too high. The Board typically reviews 3-5 comparable sales of similar properties from the last 6-12 months, photographs showing property condition issues, documentation of assessment errors, and any other objective evidence you provide. The County Assessor will also present their valuation methodology. The Board wants to see hard data and facts, not opinions or personal circumstances. After reviewing all evidence from both sides, the Board will issue a written decision either upholding the original assessment, reducing your property's value, or in rare cases, increasing it. If you disagree with the Board's decision, you have the right to appeal to District Court.
How much can I save by appealing my property taxes in Luna County?
The amount you can save by appealing your Luna County property taxes depends on how much your home is overassessed. If your $128,000 home (Luna County median) is overassessed by 10%, you're paying taxes on $12,800 too much in market value. After applying New Mexico's 33.33% assessment ratio, that's $4,266 in excess assessed value. At Luna County's 0.50% effective tax rate, a successful 10% reduction would save you approximately $21 annually. While Luna County has very low tax rates compared to other counties nationwide, even small reductions provide meaningful savings over time. Properties assessed 20-30% too high could see annual savings of $40-60 or more.
What evidence do I need for a successful Luna County property tax appeal?
For a successful Luna County property tax appeal, you need objective, data-driven evidence that your property's market value is lower than the assessed value. The strongest evidence includes 3-5 comparable sales of similar homes in your neighborhood that sold within the last 6-12 months for less than your assessed market value. Also gather photographs documenting any property condition issues like foundation cracks, roof damage, or needed repairs, along with contractor estimates for those repairs. Include documentation of any assessment errors such as incorrect square footage, wrong number of bedrooms or bathrooms, or features your property doesn't have. The County Valuation Protest Board focuses on hard data, not opinions, so avoid emotional arguments and stick to facts and figures.
Can I get both the homestead exemption and veteran exemption in Luna County?
Yes, eligible Luna County homeowners can typically receive both the Head of Household homestead exemption ($2,000 off assessed value) and the veteran exemption ($10,000 off taxable value for honorably discharged veterans). These exemptions stack for additional savings. For example, a veteran homeowner could receive both exemptions for a combined reduction of $12,000 in taxable value, saving approximately $360 annually at Luna County's tax rate. Disabled veterans may qualify for even greater savings through the proportional disability exemption effective in 2026. To apply for multiple exemptions, contact the Luna County Assessor's Office at 575-546-0404 or the New Mexico Department of Veterans' Services at 866-433-8387 to ensure you're receiving all benefits for which you qualify.
What is New Mexico's 33.33% assessment ratio and how does it affect my Luna County property taxes?
New Mexico's 33.33% assessment ratio means residential property is taxed on only one-third of its market value, the lowest assessment ratio in the United States. If your Luna County home has a market value of $128,000, only $42,624 is subject to property tax. This assessment ratio is already built into your tax bill, so when you appeal, you're challenging the market value determination, not the assessment ratio. Understanding this is important because a $30,000 reduction in market value only reduces your taxable assessed value by $10,000 (one-third), which affects your final tax savings calculation. This system helps keep New Mexico's property taxes relatively low compared to other states with higher assessment ratios.

Official Resources

Luna County Assessor's Office →

Official Luna County Assessor website with forms, contact information, and assessment details.

Luna County Property Tax Payment Portal →

Pay your Luna County property taxes online and view your tax bill information.

New Mexico Taxation and Revenue Department - Property Tax Division →

State-level property tax information, exemption details, and delinquent tax auction schedules.

Luna County Assessor Forms and Exemption Applications →

Download forms for property tax exemptions including homestead, veteran, senior, and valuation protest applications.

For state-wide appeal information including New Mexico's assessment ratio and deadlines, see our New Mexico Property Tax Appeal Guide →

Considering professional help with your appeal? Compare pricing, coverage, and pros/cons in our Best Property Tax Appeal Services (2026) or browse side-by-side service comparisons →

More New Mexico Counties

Bernalillo County (Albuquerque)Sandoval County (Rio Rancho)Santa Fe County (Santa Fe)
← All New Mexico property tax appeal info

Sources: https://www.lunacountynm.us/departments/assessor/index.php | https://www.ownwell.com/trends/new-mexico/luna-county | https://www.appealdesk.com/blog/how-to-appeal-property-taxes-in-new-mexico | https://datausa.io/profile/geo/luna-county-nm/ | https://www.tax.newmexico.gov/businesses/property-tax-overview/ | https://propertytaxrates.org/exemptions/new-mexico/

Last verified: 2026-07-22