Rate Breakdown

Property taxes in Bernalillo County are calculated by multiplying the assessed value (minus exemptions) by the total local millage rate.

How Property Tax Works in Bernalillo County

Property tax in Bernalillo County is determined by two primary factors: the taxable value of your property and the local tax rate, known as the millage rate. The Bernalillo County Assessor’s Office is responsible for determining the "net taxable value" of your property. This is calculated by taking the market value, applying a 33.3% assessment ratio, and then subtracting any applicable exemptions. The resulting figure is then multiplied by the millage rate, which is the sum of tax rates levied by various taxing entities, such as the state, county, school districts, and municipal governments. Because these rates fluctuate based on voter-approved bonds and budget requirements, your total tax liability may change annually even if your property value remains stable.

Available Exemptions

New Mexico offers several tax relief programs designed to lower the tax burden for eligible property owners. It is essential to apply for these through the County Assessor’s Office to receive the benefit:

• Head of Family Exemption: A reduction of $2,000 from the taxable value of your primary residence.
• Veterans’ Exemption: Qualified honorably discharged veterans or their surviving spouses may receive a reduction in taxable value (amounts vary based on disability status or service period).
• 100% Disabled Veteran Exemption: Veterans with a 100% permanent service-connected disability rating are eligible for a full property tax exemption on their primary residence.
• Senior Citizen or Disabled Person Valuation Freeze: If you are 65 or older or permanently disabled and meet specific income requirements, you may be eligible to freeze the valuation of your primary residence, preventing future increases in your assessed value.

Payment Schedule & Deadlines

Property taxes in Bernalillo County are billed annually by the County Treasurer. Payments are divided into two equal installments:

• First Half: Due on November 10; becomes delinquent if not paid by December 10.
• Second Half: Due on April 10; becomes delinquent if not paid by May 10.

If you choose to pay the full amount at once, you may do so by the first installment deadline. It is critical to adhere to these dates, as New Mexico law mandates the application of interest and penalties on delinquent taxes. Continued failure to pay can eventually lead to the sale of the property at a public delinquent tax auction.

Appealing Your Assessment

If you believe the Assessor’s valuation of your property is inaccurate or inconsistent with the market value of similar properties, you have the right to file a formal protest. You must file a written Petition of Protest with the County Assessor within 30 days of the date on your Notice of Value. During the protest process, you should provide evidence to support your claim, such as recent appraisals, photographs of structural issues, or documentation of comparable property sales in your neighborhood. An informal meeting with the Assessor’s staff is usually the first step, followed by a formal hearing before the County Valuation Protests Board if the dispute remains unresolved.