San Juan County, New MexicoProperty records & tax offices
Links open the listed public-office or service-provider website in a new tab. This directory does not collect payments.
Find the right property record
Use the property portal for ownership and assessed value, the collector for a bill or balance, and the map for parcel location. Have the address, owner name, or parcel number ready.
Tax bills & filing dates
These are the dates and qualifications recorded in the directory. Confirm your tax year and current deadline with the official office and your property’s notice.
- Tax bill mailing
- November 1, 2026; New Mexico county treasurers mail 2026 property-tax bills by November 1.
- Payment deadline
- First half due November 10, 2026; delinquent after December 10, 2026. Second half due April 10, 2027; delinquent after May 10, 2027.
- Assessment appeal
- Within 30 days after the 2026 Notice of Value is mailed; San Juan County says NOVs are mailed before April 1, usually near the end of March.
Exemptions & appeals
View exemption application (opens in a new tab)Exemption filing
Veteran certificate of eligibility must be presented January 1-April 30, 2026; head-of-family exemption claims are filed with the Assessor and renew automatically after approval.
Senior relief
San Juan County's 2026 application covers the low-income valuation limitation for owners age 65+ or totally disabled; the county form uses a $44,200 prior-year modified-gross-income limit.
Valuation limits
San Juan County applies New Mexico's NMSA 7-36-21.3 valuation limitation: qualifying low-income owners age 65+ or disabled may freeze the value of a primary single-family dwelling; general residential limitation and statutory exceptions are governed by state law.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.
More exemption & appeal guidance →