January 22, 2020
by William H. Bell, Senior Associate
I. Introduction
In 2007, the Louisiana Legislature, in an effort to increase the amount of solar energy produced within the state, implemented a tax credit for taxpayers who purchased residential solar panels.[1] Beginning in 2008, the solar tax credit gave Louisiana residents a tax credit of 50% of the purchase price on the purchase of residential solar panels, up to $25,000.[2] For example, if a Louisiana resident purchased a $20,000 solar panel system, the taxpayer would receive a $10,000 tax credit. In 2015, Louisiana Legislative Act 131 implemented a $10,000,000 cap on the amount of tax credits the state would issue for the 2015 and 2016 fiscal years, with an effective date of June 19, 2015.[3] Just days before the tax credit cap became effective, Justin and Gwen Ulrich and Raymond and Pam Alleman (collectively “the Taxpayers”) purchased and installed tax credit eligible solar electric systems with the expectation of receiving the tax credits.[4] In 2016, the Taxpayers filed their 2015 income tax returns seeking the tax credits.[5] Act 131’s cap for the 2015 fiscal year had already been met by the time the Taxpayers filed their 2015 tax returns, so the Louisiana Department of Revenue denied the Taxpayers’ tax credits.[6] The Taxpayers then sued the Louisiana Department of Revenue, claiming that Act 131 was unconstitutional because they had been deprived of vested property rights in the tax credits.[7] The Taxpayers litigated their lawsuit for nearly four years.[8] During that period, in 2017, the Louisiana Legislature enacted Act 413, giving the solar tax credit to any taxpayer who purchased solar panels between July 1, 2015, and January 1, 2016, in reliance on the tax credit but did not receive the tax credit because of the $10,000,000 cap.[9] Consequently, the Louisiana Supreme Court declared the Taxpayers’ cause of action moot.[10] Although the Louisiana Legislature remedied the Taxpayers’ harm before a final ruling on the Taxpayers’ lawsuit, the Louisiana Department of Revenue and the Louisiana Legislature should implement reasonable measures that will prevent similar lawsuits from arising, thereby reducing the state’s litigation costs.