The federal residential solar energy credit currently gives homeowners up to a 26 percent credit on the net cost of a solar energy system placed in service between 2020 and 2022 (Businesses also can get a credit, but that's a slightly different program). Systems installed before Dec. 31, 2019, were eligible for a 30 percent tax credit.The credit represents a dollar-for-dollar … [Read more...] about Solar panel tax credits: How they work