News & Analysis as of

Superfund Internal Revenue Service Internal Revenue Code (IRC)

Bergeson & Campbell, P.C.

IRS Modifies List of Taxable Chemical Substances to Include 21 Chemicals

On August 4, 2025, the Internal Revenue Service (IRS) published a notice of determinations that modifies the list of taxable substances to include the following 21 substances: polyphenylene sulfide, cellulose acetate (degree...more

Mitchell, Williams, Selig, Gates & Woodyard,...

Superfund/CERCLA Chemical Taxes: Trade Associations' Letter to Internal Revenue Service Addressing Refund Issue

Ten trade associations sent an April 23rd letter to the Internal Revenue Service (“IRS”) addressing an issue regarding the Superfund excise taxes imposed on certain chemicals and imported substances. ...more

Proskauer - Tax Talks

Recent Updates from the IRS and Treasury on the Superfund Chemical Tax

Proskauer - Tax Talks on

I. Executive Summary - On February 15, 2024, the IRS and Treasury issued a supplemental notice to a prior notice from December 2022, to correct a petition requesting that the Superfund Chemical Tax apply to polyphenylene...more

(ACOEL) | American College of Environmental...

Superfund $$ Lives on – to 2031 at least!

We’ve all read about the recent reinstatement of the taxes that fund the Comprehensive Environment Response, Compensation, and Liability Act (CERCLA). The new taxes are hitting the books as of July 1, 2022....more

Foley & Lardner LLP

The Infrastructure Investment and Jobs Act Reinstates the Superfund Tax, Starting July 1, 2022

Foley & Lardner LLP on

The Infrastructure Investment and Jobs Act, signed at the end of 2021, reinstates the Superfund chemical excise taxes under Sections 4661 and 4671 of the Internal Revenue Code. These taxes were in place until 1995 to fund the...more

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