Doña Ana County

Property Tax Law

Property Tax Law


A Word from the Assessor

Dear Property Owner,

As of January 1, 2004 New Mexico law requires the disclosure of residential sales information to the County Assessor. This must be accomplished by filing a notarized affidavit at the Assessor's office within thirty days of the date of filing a deed, real estate contract or memorandum of real estate contract with the County Clerk.

The information is to be used for statistical and analytical purposes and will assist us in determining fair market value of all properties. It will also help to ensure fair and equitable property tax assessments for all taxpayers throughout our county. All information collected is required to be kept confidential with the Assessor's office, and will not be made available as public information.

There are limited exceptions for some residential transactions. Please refer to the back page of the affidavit under: 7-38-12.1 - D (1 through 16).

Failure to comply with the law could result in a conviction of a misdemeanor and punishable by the imposition of a fine of not more than one thousand dollars.

My staff and I are available to answer any questions regarding the law, or to provide free notary service for this purpose. My office is located at the address listed above, or you can contact us by telephone at (575) 647-7400 Monday through Friday, 8 a.m. to 5 p.m., except on holidays.

Thank you for your cooperation.


Leticia Duarte Benavidez
County Assessor

Real Property Transfer Declaration Affidavit Notice– (PDF - 436k)


Property Tax Legislation

New Mexico Property Tax Code

(TRD Publication PTC 95) – (PDF - 703k)

Changes In State Statutes Affecting Property Values

  • House Bill 82 - Valuation Limitation for Low Income & Over Age 65 – (PDF - 14k)
  • House Bill 90 - 100 % Disable Veteran – (PDF - 28k)
  • House Bill 366 - Limitation on Valuation Increases for Residential Property – (PDF - 22k)