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Key takeaways
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Comprehensive Savings: New Mexico provides a wide array of incentives for homeowners installing solar, extending beyond the state income tax credit.
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Property and Sales Tax Benefits: Homeowners benefit from 100% property tax exemption on solar system value and exemption from gross receipts tax on purchase and installation.
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Net Metering Advantages: For systems less than or equal to 10 kW, excess kWh may be carried forward, or the utility may credit/pay at its avoided-cost rate, with the utility determining the option. For systems greater than 10 kW, excess is generally paid at avoided cost.
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Targeted Support: Specific programs like HEAR and HER offer significant financial assistance for income-qualified households.
Homeowners in New Mexico considering solar power benefit from a diverse range of financial incentives, extending well beyond the state's main solar tax credit. While the New Mexico solar tax credit is a significant factor, the state's approach also includes substantial property and sales tax exemptions, robust net metering policies, and specialized utility programs. These combined benefits make solar a more accessible and cost-effective option for many residents.
New Mexico receives many peak sun hours daily, making it suitable for solar energy production¹. The comprehensive incentive structure aims to capitalize on this natural advantage, encouraging wider adoption of renewable energy across the state.
New Mexico's Property and Sales Tax Exemptions
Installing a solar energy system can increase your home's value, but New Mexico ensures this added value doesn't result in higher property taxes. The state offers a property tax exemption for 100% of the assessed value added by solar energy systems, applicable to valuations made on or after January 1, 2025¹.
This includes solar panels, battery storage, mounting equipment, and monitoring systems¹. This means homeowners avoid increased property tax burdens despite their investment in renewable energy.
Beyond property taxes, New Mexico also provides a significant sales tax benefit. The state exempts the purchase and installation of solar energy systems from gross receipts tax. As of July 1, 2024, this gross receipts tax exemption also extends to paired battery storage equipment, a benefit available through July 1, 2034¹. These exemptions reduce the upfront cost of going solar, making the investment more attractive.
Net Metering Policies
Net metering is a crucial incentive that helps homeowners maximize the financial benefits of their solar systems. New Mexico's net metering policy allows utilities to credit homeowners for excess solar electricity sent to the grid. For systems less than or equal to 10 kW, excess kWh may be carried forward, or the utility may credit/pay at its avoided-cost rate, with the utility determining the option. For systems greater than 10 kW, excess is generally paid at avoided cost.
A key advantage of New Mexico's net metering is that these credits roll over month-to-month¹. This ensures homeowners are fully compensated for their solar production, even if their usage fluctuates throughout the year. The accumulated credits can offset future electricity bills, providing long-term savings.
State Tax Credits and Programs
While New Mexico’s Solar Market Development Tax Credit (SMDTC) offers significant savings, other state tax credits also exist. The Sustainable Building Tax Credit (SBTC) is one such example. It can be claimed for sustainable residential buildings for taxable years ending on or before December 31, 2026. The main New Mexico solar tax credit, the Solar Market Development Tax Credit (SMDTC), offers up to 10% of eligible solar equipment/material/labor costs, capped at $6,000.
For ENERGY STAR certified manufactured homes, the SBTC provides $3 per square foot, with a maximum of $6,000 for a 2,000 sq ft home. This credit can be used against state income tax or transferred, offering flexibility for homeowners².
House Bill 51, introduced on January 21, 2025, was postponed indefinitely and is no longer pending legislation. For more about the costs of installing a system, see our guide to solar panel cost in New Mexico.
Utility Rebates and Special Programs
Beyond state-level tax benefits, several utility companies in New Mexico offer their own incentives. Some utility companies in New Mexico are mandated to provide incentives for energy efficiency measures for both new and existing homes². The specific rebates available for energy efficiency vary significantly by utility and individual program¹. Homeowners should check with their local utility provider for details on available offers.
New Mexico also operates specific programs designed to support solar adoption for various demographics. The federal Solar for All award was subject to attempted termination and the program paused until further notice. However, a separate state-funded Solar for New Mexico initiative was announced in May 2026³. This initiative helps ensure that the benefits of solar energy are accessible across all income levels.
Additional programs, such as the Home Electrification and Appliance Rebates (HEAR) Program, offer substantial point-of-sale rebates. The Home Electrification and Appliance Rebates (HEAR) Program offers point-of-sale rebates up to $14,000 per household for income-qualified individuals². Furthermore, the Home Efficiency Rebates (HER) Program's current site lists the program as "Coming soon" and the launch date as TBA. These programs represent significant opportunities for residents to lower the cost of energy-efficient upgrades. For a broader overview of incentives, explore general solar incentives available nationwide.
Federal Context
It is important to understand the federal context for solar incentives. The federal residential solar tax credit (Section 25D) expired on December 31, 2025¹. However, the federal commercial solar Investment Tax Credit (Section 48E) remains at 30% through 2027⁴. Homeowners planning a residential installation should focus on state and local programs, as well as any future federal legislation. For detailed information on past federal incentives, refer to our article on The Federal Solar Tax Credit: What’s New in 2026.
Pros
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Significant property tax exemption for solar system value.
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Exemption from gross receipts tax on solar purchases and installations.
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Net metering credits roll over monthly, maximizing savings.
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Specialized programs (HEAR, HER) support low-income and energy efficiency efforts.
Cons
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Specific utility rebates vary, requiring individual research.
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Federal residential solar tax credit has expired.
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State battery storage tax credit legislation (HB 51) was not enacted.
The combination of tax exemptions, net metering, and utility programs creates a strong incentive landscape for New Mexico residents to invest in solar energy. These diverse benefits extend well beyond the well-known New Mexico solar tax credit, making solar power an increasingly practical choice.
Sources:
Solar Power in New Mexico: 2026 Costs, Incentives & Savings, 2026 (palmetto.com)
New Mexico State Incentives (350newmexico.org)
Solar for All — New Mexico — state program (grantya.com)
New Mexico Solar Incentives 2026: Tax Credits & Rebates, 2026 (sunstatesolar.com)
Will is a Home Improvement Editor with a passion for helping homeowners make confident, well-informed decisions about their homes. He specializes in reviewing and refining content covering home renovations, solar energy, roofing, HVAC, insulation, windows, flooring, plumbing, electrical systems, and other key areas of residential improvement. With a strong background in research and technical writing, Will is committed to ensuring every article ...
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