April 16, 2025
Petitions Filed to Add Chemicals to List of Chemical Substances Subject to Superfund Excise Tax
On April 2 and April 3, 2025, the Internal Revenue Service (IRS) announced that petitions have been filed to add the following chemicals to the list of taxable substances: Comments on the petitions are due June 2, 2025. More information on the Superfund excise tax on chemicals is available in our July 13, 2022, memorandum, “Superfund Tax on Chemicals: What You Need to Know to Comply” and our May 19, 2022, memorandum, “Reinstated Superfund Excise...