New Mexico gets 6.2 peak sun hours daily — more than Hawaii, and among the highest averages anywhere in the country. Combined with one of the strongest state solar tax credits in the nation, full retail net metering, and 100% exemptions on both sales tax and property taxes, New Mexico is one of the very best states to go solar right now. If you're a New Mexico homeowner or business owner, 2026 is the year to act.
New Mexico Solar Market Development Tax Credit
New Mexico's Solar Market Development Tax Credit (SMDTC) is the centerpiece of the state's residential solar incentive program — and one of the most compelling state credits available anywhere in the country.
- Credit amount: 10% of the total system cost
- Maximum credit: $6,000 per taxpayer per year
- Annual cap: $12 million statewide — first-come, first-served
- Claim year: Must be claimed in the tax year of installation — no multi-year carryforward on the state credit
- Eligibility: New Mexico state taxpayers installing solar on a New Mexico property
The $12 million statewide annual cap is a critical detail. Once the cap is reached in a given calendar year, no new claims are accepted. In recent years, the cap has been reached before year-end. Legacy Energy monitors the cap status and helps you time your installation to ensure you file before it runs out.
Federal ITC Status in New Mexico
The federal tax credit picture in 2026 mirrors the rest of the country:
- Residential ITC (Section 25D): Expired December 31, 2025 per the "One Big Beautiful Bill." New Mexico homeowners installing in 2026 cannot claim the 30% residential credit on their federal return.
- Commercial ITC (Section 48E): Still fully active at 30% through 2027. New Mexico business owners, commercial property owners, and landlords with solar remain eligible for the full 30% federal credit.
For residential customers, the New Mexico state credit becomes even more important given the expiration of the federal residential ITC. Stacking the state credit with sales tax exemption, property tax exemption, and strong net metering creates a compelling incentive package even without the federal residential credit.
Sales Tax Exemption in New Mexico
New Mexico provides a 100% gross receipts tax (sales tax) exemption on all solar equipment and installation labor. This exemption covers:
- Solar panels and modules
- Inverters (string inverters, microinverters, power optimizers)
- Racking and mounting hardware
- Battery storage systems installed with solar
- All installation labor
On a typical $25,000 system in New Mexico, the gross receipts tax exemption saves approximately $2,000–$2,200. This exemption applies automatically when purchased from a licensed solar installer — no application required.
Property Tax Exemption
Solar installations in New Mexico are fully excluded from property tax assessment statewide. Like Texas and Colorado, New Mexico's exemption means your home's value can increase substantially due to solar without any increase in your property tax bill. This exemption is automatic and permanent — no annual renewal, no application, no expiration.
Net Metering in New Mexico
New Mexico has some of the strongest net metering protections in the Southwest. Full retail net metering is available through the state's major utilities, meaning every kilowatt-hour your solar panels export to the grid is credited back to your account at the same rate you pay when buying electricity.
- PNM (Public Service Company of New Mexico): Full retail net metering available statewide
- El Paso Electric: Net metering available for NM customers
- Most rural electric cooperatives: Net metering programs available — contact your co-op or Legacy Energy to confirm
New Mexico's retail-rate net metering is notably stronger than California's NEM 3.0 policy, which reduced export credits dramatically. PNM customers in New Mexico retain full retail credits — making battery storage less urgent for bill reduction purposes, though still valuable for backup power.
PNM Programs & Incentives
PNM is the primary utility for most New Mexico residents and has been actively supporting solar adoption through its net metering program. PNM customers can stack the following incentives:
- Full retail net metering: Credits at the retail rate for all exported solar production
- NM Solar Development Tax Credit: Stackable with net metering — both apply simultaneously
- Solar system interconnection: PNM has a streamlined interconnection process for residential solar up to 10 kW
PNM customers with well-sized solar systems typically see an 18–25% reduction in their net annual electricity bill from net metering credits alone, with the state tax credit providing substantial additional upfront offset.
Get a free New Mexico solar assessment — before the tax credit cap runs out
Legacy Energy monitors the NM state credit cap status and helps you time your installation to capture the full $6,000 credit. Free assessment, no obligation.
Average Savings in New Mexico
New Mexico's combination of sun, state credit, and strong net metering produces some of the best solar economics in the Southwest:
- Monthly bill savings: $100–$220 depending on system size and usage
- Payback period: 6–9 years with state tax credit applied (shorter than most states)
- 25-year total savings: $35,000–$60,000 with typical 3–4% annual rate escalation
- State credit on a $25,000 system: $2,500 direct tax credit, applied to NM state tax liability
Solar Farms in New Mexico
New Mexico's vast open land and exceptional solar resource make it one of Legacy Energy's most active utility-scale solar development markets. If you own agricultural or undeveloped land in New Mexico, a solar farm lease may be a significant source of passive income.
- Landowner lease rates: $1,000–$2,500 per acre annually for land under solar lease
- Lease terms: Typically 25–35 years with renewal options
- Land requirements: Minimum 50–100 acres, flat or gently sloping, good solar access
- Legacy Energy's role: We handle all permitting, interconnection, and development — landowners receive passive income with no capital investment required
Contact Legacy Energy for a confidential land assessment if you own acreage in New Mexico's prime solar corridors (Chaves, Eddy, Luna, Doña Ana counties).
