The 30% federal Investment Tax Credit is the most valuable solar incentive available to Missouri homeowners and businesses in 2026. This guide explains exactly how it works, what qualifies, when you claim it, and how to combine it with Missouri-specific programs.

What is the Federal Solar Tax Credit?

The federal Investment Tax Credit (ITC) is a provision of the Internal Revenue Code that allows you to deduct 30% of the cost of your solar energy system directly from your federal taxes. It's not a deduction — it's a credit, which means it reduces your tax bill dollar-for-dollar. A $25,000 solar system generates a $7,500 tax credit. A $40,000 commercial system generates a $12,000 credit.

What Qualifies for the 30% ITC?

Solar panels (photovoltaic systems)
Inverters and mounting hardware
Battery storage — when paired with solar OR as standalone storage (as of 2023)
Solar pergolas and carports — the solar component and qualifying structural components
Ground-mount solar systems
Installation labor and permitting costs
Interconnection fees paid to the utility

When Do You Claim the Credit?

You claim the ITC in the tax year your system is "placed in service" — meaning activated and generating power. For most proSOLAR customers, that's the same