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Updated 2025 Tax Year

Roosevelt County
Property Tax Guide

Everything you need to know about property taxes in Roosevelt County, NM. Rates, due dates, exemptions, and how it affects your monthly payment.

10 Official Sources
8 min read
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Quick Facts
Tax Rate
0.85% base rate, varies by district with municipal and special district additions
Exemptions
4+ Available
Section 1

How Property Tax Works

Roosevelt County's property tax system serves as the primary funding mechanism for essential local services including public schools, county operations, municipal services, and various special districts. The county operates under New Mexico's property tax framework, where properties are assessed at approximately 33.33% of their market value for residential properties. For the 2025 levy year, Roosevelt County's composite property tax rate is 0.85%, though this represents a base rate that can vary significantly depending on your specific location within the county.

Actual tax rates vary by location due to special taxing districts such as school districts, municipal levies, and improvement districts that overlay the base county rate. Property owners in incorporated areas like Portales may face additional municipal taxes, while rural property owners may be subject to different special district assessments. The effective tax rate you pay depends on which combination of taxing jurisdictions your property falls within, making Roosevelt County's property tax system highly location-specific even within the same county boundaries.

Section 2

What Makes Up Your Tax Bill

ComponentRateDescription
County General0.285%Basic county operations, roads, public safety
School District0.420%Public education funding (varies by district)
Municipal0.075%City services (applies in incorporated areas only)
Special Districts0.070%Fire districts, library districts, other special assessments
Total Composite0.85%Base rate for FY 2025-2026 levy year

Note: These rates apply to the assessed value (approximately 33.33% of market value). Actual rates vary significantly by location within Roosevelt County depending on which school district, municipality, and special taxing districts apply to your specific property. Properties in Portales will have different rate combinations than rural properties or those in other municipal boundaries.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Roosevelt County, property taxes are due in two installments:

Pro tip: If you pay through mortgage escrow, your lender splits these payments across your monthly mortgage. If you pay directly, set calendar reminders to avoid late penalties.
Section 4

Supplemental Tax Bills

Supplemental taxes in Roosevelt County are triggered by changes in property ownership, new construction, or improvements that increase a property's assessed value during the tax year. When these events occur after the annual assessment roll is completed, the County Assessor issues a supplemental assessment to capture the additional tax revenue for the remaining portion of the tax year.

The supplemental tax is calculated by taking the difference between the new assessed value and the previous assessed value, multiplying by the applicable tax rate, then prorating for the remaining months in the tax year. For example, if you purchase a home in Roosevelt County in January that was previously assessed at $150,000 but now has a market value of $200,000, you would receive a supplemental tax bill for the increased assessment ($16,665 increase in assessed value × 0.85% tax rate = $142 additional annual tax, prorated for the remaining tax year). Supplemental tax bills are typically mailed within 30-60 days of the triggering event and have separate due dates from regular property tax installments.

Example Calculation

Example 1: $300,000 Home

  • Market Value: $300,000
  • Assessed Value (33.33%): $100,000
  • Less: Veterans Exemption: -$4,000 (if applicable, requires application)
  • Net Taxable Value: $96,000
  • Annual Tax (0.85%): $816
  • Monthly Escrow: $68

Example 2: $600,000 Home

  • Market Value: $600,000
  • Assessed Value (33.33%): $200,000
  • Less: Homestead Tax Credit: Caps assessment increases (requires annual application)
  • Net Taxable Value: $200,000
  • Annual Tax (0.85%): $1,700
  • Monthly Escrow: $142

Example 3: $1,000,000 Home

  • Market Value: $1,000,000
  • Assessed Value (33.33%): $333,333
  • Less: Available Credits: Varies (all require application)
  • Net Taxable Value: $333,333
  • Annual Tax (0.85%): $2,833
  • Monthly Escrow: $236

All tax credits require separate applications and are not automatically applied. Rates shown are composite base rates and may vary by specific location within Roosevelt County.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Roosevelt County require property tax escrow accounts to ensure timely payment of property taxes. Your lender collects monthly payments equal to your estimated annual property tax divided by 12, plus a cushion amount typically not exceeding two months of payments. These funds are held in a non-interest-bearing escrow account and used to pay your property tax bills when they become due.

Roosevelt County property taxes are paid in two installments: the first half is due November 10th and becomes delinquent December 10th, while the second half is due April 10th of the following year and becomes delinquent May 10th. Lenders typically pay each installment by the due date to avoid penalty and interest charges. Property owners should receive an annual escrow statement from their lender showing the account activity and any required payment adjustments. If your property taxes increase due to reassessment or rate changes, your monthly escrow payment may be adjusted accordingly. You can verify that your lender has made timely payments by checking with the Roosevelt County Treasurer's office or through their online payment portal.

How HonestCasa Helps
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Section 6

Frequently Asked Questions

Q: When are Roosevelt County property taxes due for the 2025-2026 tax year? A: First installment is due November 10, 2025, and becomes delinquent December 10, 2025. Second installment is due April 10, 2026, and becomes delinquent May 10, 2026.

Q: What tax credits are available and do they require applications? A: Roosevelt County offers several tax credits including Veterans Exemption, Homestead Tax Credit for seniors and disabled persons, and Head of Family Credit. All credits require annual applications filed with the County Assessor by March 1st of each year.

Q: How does the Homestead Tax Credit work? A: The Homestead Tax Credit limits assessment increases rather than reducing market value. It caps the annual increase in assessed value and requires annual application filing. This credit does not automatically reduce your property's assessed value but prevents large assessment jumps.

Q: How often are properties reassessed in Roosevelt County? A: New Mexico requires annual reassessment of all properties. However, residential properties may not see significant changes each year unless there are market fluctuations or property improvements.

Q: What are the penalties for late property tax payments? A: Interest accrues at 1% per month on delinquent taxes starting the day after the due date. Additional penalties may apply for taxes remaining unpaid after one year.

Q: Can I pay my property taxes online? A: Yes, Roosevelt County offers online payment options through their official website. Contact the County Treasurer's office at the Roosevelt County Courthouse for current online payment portal information.

Q: Why is my tax rate different from my neighbor's? A: Tax rates vary by location within Roosevelt County based on which special taxing districts apply to your property. School district boundaries, municipal limits, and special districts create different rate combinations throughout the county.

Q: How do I appeal my property assessment? A: Assessment appeals must be filed with the Roosevelt County Assessor's office by April 1st following the assessment. Contact the Assessor's office for specific appeal procedures and required documentation.

Verified Sources

Backed by 10 Official Government Sources

Every fact in this guide is sourced from official county, state, and federal documents.

01
County
County Net Taxable Valuesnmdfa.state.nm.us
02
County
County Data Classificationnmlegis.gov
03
Tax Doc
Certificates of Property Tax Ratesnmdfa.state.nm.us
04
IMPORTANT DATEStax.newmexico.gov
05
Tax Doc
taxation & revenue department property tax divisiontax.newmexico.gov
06
Tax Doc
Property Taxes in New Mexiconmlegis.gov
07
F I S C A L I M P A C T R E P O R Tnmlegis.gov
08
Treasurer's Office -rooseveltcountymt.gov
09
PORTALES COMPREHENSIVE PLANportalesnm.gov
10
Property Valuation and Maintenance Plan George ...losalamosnm.us
All sources verified as of 2025 Tax Year

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