Solar Tax Credits & Incentives: The Complete Guide

Federal Investment Tax Credit (ITC) — 30%

The federal ITC is the most valuable solar incentive in the United States. It allows you to deduct 30% of your total solar system cost from your federal income taxes. There is no maximum dollar limit.

What qualifies for the ITC:

• Solar panels (modules)
• Inverter(s) — string, microinverter, or hybrid
• Racking and mounting equipment
• Battery storage (if charged by solar at least 75% of the time)
• Wiring, conduit, and electrical panel upgrades required for solar
• Labor and permit costs
• Sales tax on equipment

ITC phase-down schedule:

Example: A $20,000 solar system in 2026 qualifies for a $6,000 federal tax credit. If your tax liability is $4,000, you get $4,000 back this year and roll over the remaining $2,000 to next year.

State-Level Solar Incentives

Many states offer additional incentives on top of the federal ITC. Here are the most generous programs:

Check your state's energy office website for current programs, as incentives change frequently. The DSIRE database (Database of State Incentives for Renewables & Efficiency) is an excellent resource.

Net Metering vs Net Billing

Net metering credits you at the full retail rate for excess solar energy you send to the grid. Net billing credits you at a lower wholesale rate. This distinction dramatically affects solar payback periods.

If your state has weak net metering, consider adding battery storage to use more of your solar power directly — this is why solar + storage is growing rapidly in California and other NEM 3.0 states.

SRECs and Performance-Based Incentives

Solar Renewable Energy Certificates (SRECs) are tradable certificates representing the environmental benefits of solar generation. In states with SREC markets, you earn one SREC for every 1,000 kWh your system produces.

Active SREC markets (2026):

• New Jersey: $200-300 per SREC (one of the best markets)
• Massachusetts: $250-350 per SREC II
• Washington DC: $350-450 per SREC
• Ohio: $15-25 per SREC (low value)
• Pennsylvania: $30-50 per SREC

Example: A 6 kW system in New Jersey producing 7,800 kWh/year earns 7-8 SRECs worth $1,400-$2,400 annually — on top of the energy savings.

Property Tax and Sales Tax Exemptions

Many states exempt solar equipment from sales tax and prevent solar installations from increasing your property taxes.

States with property tax exemptions for solar:

• Arizona, California, Colorado, Florida, Illinois, Indiana, Massachusetts, New Jersey, New York, Ohio, Oregon, Texas, Utah, and more

States with sales tax exemptions for solar:

• Over 30 states exempt solar equipment from state sales tax (saving 4-10% on system cost)

These exemptions are often overlooked but can save you $1,000-$3,000 on a typical residential system.

Incentives for Off-Grid Solar Systems

Off-grid solar systems qualify for most of the same incentives as grid-tied systems. Here's what to know:

• ✅ Federal ITC applies — off-grid solar systems, including batteries, qualify for the 30% credit. The battery must be charged primarily by solar.
• ✅ State incentives — Many state rebates and tax credits apply to off-grid installations. Check your state's rules.
• ⚠️ Net metering does not apply — By definition, off-grid systems don't connect to the utility grid, so net metering credits are not relevant.
• ✅ SRECs may apply — If your system is grid-connected with battery backup (hybrid), you may still earn SRECs.

Use our off-grid solar calculator to design your system, then apply the 30% ITC to the estimated cost.

How to Claim the Federal ITC

Claiming the ITC is straightforward. Here's the process:

1. Install your solar system — The system must be placed in service (operational) during the tax year.
2. Get documentation — Keep all invoices, contracts, and proof of payment from your installer.
3. File IRS Form 5695 — This is the "Residential Energy Credits" form. Enter your qualified solar costs.
4. Calculate the credit — Multiply eligible costs by 30%. Enter this on Form 5695, then transfer to Schedule 3 (Form 1040).
5. Roll over unused credit — If your credit exceeds your tax liability, the unused portion carries to the next tax year.

Important: The ITC is a non-refundable credit. You get back only as much as you owe in taxes (plus carryover). If you have low tax liability, consider splitting the installation across multiple years or consulting a tax professional.

Frequently Asked Questions

📚 Related guides: Solar ROI: Is It Worth It? · Best States for Solar · Off-Grid Solar Basics