Use Form 8864 (Rev. January 2023) to claim your section 40A credits or the section 40B credit for sustainable aviation fuel. Claim the credits for the tax year in which the sale or use occurs. The section 40A credit consists of the credits for: Biodiesel, Renewable diesel, Biodiesel mixtures, Renewable diesel mixtures, and Small agri-biodiesel producers. Current Revision Form 8864 PDF Instructions for Form 8864 (Print Version PDF) Recent Developments Safe harbors for sustainable aviation fuel credit -- 05-FEB-2024 Other Items You May Find Useful All Form 8864 Revisions About Publication 510, Excise Taxes (Including Fuel Tax Credits and Refunds) Other Current Products Related About Form 720, Quarterly Federal Excise Tax Return About Form 4136, Credit For Federal Tax Paid On Fuels About Form 8849, Claim for Refund of Excise Taxes