Notice of Value Update from Assessor
Contact Info
Property Notice of Value - Msg from County Assessor Ken Milder
Posted on 04/07/2021

The Los Alamos County Assessor would like to inform property owners that the County Assessor’s office has mailed out Notices of Property Value effective April 1, 2021.

The purpose of these notices is to inform the property owner of the current ownership, legal description, applicable exemptions, and the valuation placed on their property. Upon receipt of this notice, property owners are asked to read and verify that all information is correct.


The Los Alamos County Assessor’s office is on a one-year valuation cycle. As established by law, property assessments for the 2021 Tax Year are determined at 2020 market levels. The taxable status date is fixed as of January 1 of the current year.


If a property owner is unclear or does not understand the valuation level or process, exemptions, protest procedures or any other property tax related issues, they are asked to contact the Assessor's office for assistance by calling (505) 662-8030 or visiting their office in the Municipal Building at 1000 Central Ave, Suite 210. Business hours are from 8:00 A.M. to 5:00 P.M.

Property owners may also find more info on the Assessor's website, including forms or links to other useful tools:

Property owners do not have to file a property valuation protest to inquire about assessment procedures or to have their property valuation reviewed and explained. Although an individual might choose to do so, the Assessor's office has stated they do not recommend that a property owner acquire a Fee Simple Appraisal of their property for the sole purpose of appealing their property assessment. In most cases the cost of an appraisal will be greater than the reduction in tax savings.


Property owners may protest their valuation, classification, allocation of value, denial of exemptions or limitation on increases in value as determined by the County Assessor. The first step in this process is to meet with a representative of the Assessor’s office to explain why you feel the assessment is in error. The best time to do this is within thirty days of the mailing of your notice of value. After this time, a claim for refund is required to be filed in District Court at the owner’s expense and the Assessor’s staff cannot assist the owner in this process.


If, after meeting with the Assessor’s staff, a property owner remains convinced that the value is incorrect; they my file a petition of protest with the County Assessor within thirty days of the mailing of the notice of value.


Types of exemptions available for homeowners as listed on the back of the notice of value are:


· Head of Household (family) exemption: $2,000 reduction of the net taxable value. Most homeowners qualify for this type of exemption

· Veterans’ exemption: $4,000 reduction of the net taxable value. Must obtain a green colored “Certificate of Eligibility” from the NM Department of Veterans Services. A married couple, where both spouses are veterans, may each file for this exemption for a total of $8,000.

· 100% Disabled Veterans Exemption: 100% exemption from property taxes if certain criteria are met. Must obtain a gold colored “Certificate of Eligibility” from the NM Department of Veterans Services.

· Low income and sixty-five years of age or older or Disabled, whose modified gross income limit is $34,500 or less: Depending on eligibility, the property may be subject to a valuation freeze that limits any further increases in value.


The deadline for claiming exemptions is thirty days (postmarked) after the mailing of the notice of value. Please contact the Assessor's office or visit their website for details on the required qualification criteria for these exemptions.

Anyone with questions or concerns regarding this process are asked to contact the Assessor’s Office at 505-662-8030, or e-mail staff at