Valencia County Tax Error Sends Incorrect Bills, Officials Promise Fix

Valencia County property owners were surprised in December when tax bills arrived showing dramatically higher amounts, a mistake county officials traced to the assessor listing property values in the billions rather than in the millions. The misreported figures produced an unintended spike in the operational mill rate used to compute 2025 bills, triggering confusion and concern for homeowners and small businesses ahead of the December 10 payment deadline.

Treasurer Ron Saiz acknowledged the county used an incorrect net taxable value to set mill rates. County staff say the Local Government Division of the Department of Finance and Administration is coordinating with Valencia County to correct the mill rates and produce revised bills. A software problem prevented corrected bills from being issued by the initial update, and county officials said penalties would be waived for taxes that were due on December 10.

For residents who have questions or who already paid based on the incorrect bill, the treasurer's office advised contacting the county treasurer at 505 866 2090. County officials said refunds or reconciliation options would be available for payments made under the flawed computation. The administration has not released a timetable for issuing revised bills, but indicated state and county staff are prioritizing the correction.

The error highlights institutional vulnerabilities in tax administration that have direct consequences for household budgets and county revenue forecasting. Property tax collections fund schools, public safety, and local services, and an overstatement of values or mill rates can produce short term revenue distortions and erode public confidence. County leaders face a dual task of correcting bills for residents and explaining the controls that failed so the mistake is not repeated.

The timing of the error, occurring during a peak payment period, increased its impact on residents who may have arranged payments or loans based on the original bill. For now, residents should confirm any payments with the treasurer's office and await the revised bills. County officials have said they are working with state partners to finalize corrected calculations and to ensure refunds and adjustments are handled promptly.