Iowa Solar Incentive Programs

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Iowa experiences a varied climate with around 205 sunny days annually, providing a decent amount of sunlight for solar energy initiatives. While it may not be among the sunniest states, Iowa’s weather conditions still present opportunities for viable solar power projects. The state has some of the top solar incentives in the US, given are some of the incentives available to Iowa home and business owners:

Federal Incentives

Federal Investment Tax Credit (ITC)

Commercial solar energy systems installed in Iowa can take advantage of the Federal Investment Tax Credit 48E, which provides a tax credit of 30% of the total cost of the system, provided prevailing wage and apprenticeship requirements are met. 

Residential systems can no longer claim any federal solar tax credit, as the One Big Beautiful Bill eliminated it for systems installed after January 1st, 2026. 

Commercial Depreciation

Commercial asset owners can write off 100% of a project’s value in depreciation in the first year. The One Big Beautiful Bill reinstated the 100% bonus depreciation, while simultaneously eliminating the Modified Accelerated Cost Recovery System (MACRS) that previously depreciated solar energy systems over 5 years. 

The depreciable basis of a project is reduced by half of the ITC value when combined with the 30% ITC. Here’s a quick example:

• Project cost = $800,000
• 30% credit = $240,000
• Reduced depreciation basis: $800,000 – ($240,000 / 2) = $680,000

A company’s tax rate is then taken into account to calculate the exact amount they’re able to write off. 

Incentive and Rebates

Iowa offers a solar tax credit that is equivalent to 50% of the federal solar tax credit. This means that for an average 6-kW solar energy system installed for $18,000, you can claim $5,400 from the federal government (30% * $18,000) and an additional $2,700 (50% of the federal credit) on your yearly tax returns. For any new solar PV system installed in Iowa, the assessed value of the system is exempt from your property taxes for five years.

That means that, even though your solar installation adds value to your property, the added value can’t be counted when property is being assessed for taxes in the first five years of installation. When you purchase a solar energy system in Iowa, the equipment is exempt from sales tax under Iowa’s sales tax exemption for electrical generating equipment, saving you 6% on your purchase price.

Renewable Energy Property Tax Exemption:

For any new solar PV system installed in Iowa, the assessed value of the system is exempt from your property taxes. That means that, even though your solar installation adds value to your property, the added value can’t be counted when property is being assessed for taxes.

Iowa Sales Tax Exemption:

When you purchase a solar energy system in Iowa, many of the components are exempt from sales tax under Iowa’s sales tax exemption for electrical generating equipment. According to the law, you don’t have to pay sales tax on your solar modules, racking, and inverters because they are directly involved in the production of electricity.

Net Metering:

Solar energy systems under 1 megawatt (MW) in size are eligible to participate in net metering, which allows you to send your extra electricity back into the grid and get credits on your electric bill. When your panels aren’t producing all the electricity you need, you can use your credits instead of having to pay for electricity from your utility.

Further information and programs can be found at the Programs.Dsireusa.org