The Internal Revenue Service (IRS) has released its final rules, as required by the Inflation Reduction Act, to make many clean energy tax credits transferable (able to be sold to a third party) or available for elective pay (a direct payment to the credit holder). Both rules may help expand investment in clean energy by providing mechanisms that get capital to the project’s developer immediately, even if the developer is a nonprofit or public entity that would never have paid any taxes on the project.