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Tax Policy

The U.S. has a long history of supporting energy infrastructure through the U.S. tax code. The market certainty provided by the long-term solar investment tax credit (ITC) has supported private investment in manufacturing and project construction, a vital part in meeting our nation's energy policy goals, driving cost-cutting innovation and job growth.

Solar Investment Tax Credit

The solar Investment Tax Credit (ITC) is one of the most important federal policy mechanisms to support the growth of solar energy in the United States. Since the ITC was enacted in 2006, the U.S. solar industry has grown by more than 10,000%. In 2015, SEIA successfully advocated for a multi-year extension of the credit, which has provided critical stability for businesses and investors.

Quick Facts about the ITC
  • The ITC is a 26 percent tax credit for solar systems on residential (under Section 25D) and commercial (under Section 48) properties.
  • The residential and commercial solar ITC has helped the U.S. solar industry grow by more than 10,000% percent since it was implemented in 2006, with an average annual growth of 50% over the last decade alone.
  • Congress passed a multi-year extension of the ITC in 2015, but the credit began stepping down at the end of 2019.

Additional Reading

Commence Construction Guidance
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SEIA Solar Tax Manual
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Depreciation of Solar Energy Property
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Solar Tax Exemptions
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Tax & Accounting Committee

SEIA's Tax & Accounting Committee discusses pressing tax issues on Capitol Hill and in the Administration. The group is comprised of leading tax attorneys and consultants in the country as well as our member companies’ tax experts.

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