NEW MEXICO San Juan Property Tax Estimator
Estimate Your Property Tax
Rate Breakdown
Property taxes in San Juan County are calculated by multiplying the assessed value (minus exemptions) by the total local millage rate.
| Authority | Avg. Rate |
|---|---|
| County General Fund | 0.45% |
| School District (Avg) | 1.20% |
| City / Local (Avg) | 0.35% |
How Property Tax Works in San Juan County
In San Juan County, property taxes are determined by a combination of the property's assessed value and the local tax rate, known as the millage rate. The San Juan County Assessor’s Office is responsible for identifying, locating, and valuing all taxable property within the county. By law, property is assessed at 33 1/3% of its fair market value. Once the taxable value is established, the millage rate—which includes levies for schools, county government, municipal services, and special districts—is applied to calculate your annual tax liability.
Available Exemptions
New Mexico offers several statutory exemptions that can significantly reduce your tax burden if you meet specific eligibility requirements. These exemptions are applied to the taxable value of your primary residence:
- Head of Household Exemption: A $2,000 reduction in taxable value for New Mexico residents who qualify as the head of a household.
- Veterans’ Exemption: Honorably discharged veterans or their unmarried surviving spouses may receive a reduction in taxable value. A total exemption is available for 100% disabled veterans.
- Senior or Disabled Citizen Valuation Freeze: If you are 65 or older, or permanently disabled, and meet specific income limitations, you may apply to freeze the valuation of your primary residence, protecting you from future tax increases due to rising property values.
Payment Schedule & Deadlines
Property tax bills in San Juan County are mailed by the County Treasurer’s Office by November 1st each year. To remain in good standing, payments must be settled according to the following schedule:
- First Half: Due November 10th. This payment becomes delinquent if not received by December 10th.
- Second Half: Due April 10th. This payment becomes delinquent if not received by May 10th.
If you prefer to pay in full, the entire amount may be paid by December 10th without interest or penalty. Please be aware that failure to pay by the specified deadlines results in the accrual of interest and administrative penalties. Continued non-payment may eventually lead to the placement of a tax lien on your property.
Appealing Your Assessment
If you believe the valuation of your property is inaccurate, inequitable, or does not reflect the current market conditions, you have the right to file a formal protest. You must file a Petition of Protest with the San Juan County Assessor’s Office within 30 days of the date on your Notice of Valuation. It is recommended that you gather supporting evidence, such as recent appraisals, comparable sales data for similar properties in your neighborhood, or documentation of structural issues that may decrease value. Following the filing, a hearing will be scheduled with the County Valuation Protests Board to review your evidence and determine if an adjustment is warranted.