
Paul L. Caron
Dean
Pepperdine Caruso
School of Law

After almost a year of stalled action, the Trump Administration is continuing, by Executive Order, the Biden Administration’s efforts to reclassify marijuana from a Schedule I drug to a Schedule III drug. Should regulations finalize this change (and there almost certainly will be bipartisan opposition), effective federal tax rates on income from state-legal marijuana businesses…
Tariffs and trade protectionism go hand-in-hand—especially when those tariffs are not uniform. Through this lens, every rate transition—and there have been many since January—reshuffles the domestic economy’s winners and losers. This reshuffling has industry and interest group effects, as well as broader rhetorical and pocketbook implications for consumers. And all of these actors are potential…
Andrew Duehren, Big Businesses Are Cashing In on Trump’s Tax Cuts, N.Y. Times (Dec. 12, 2025): In the months since the passage [of the 2025 budget bill] in July, corporations like Walmart, Amazon, Verizon and Eli Lilly have all disclosed in securities filings that the law would reduce their cash tax payments in the near…
Ari Hawkins & Doug Palmer, Trump Administration Races to Finalize Tariff Payments — and Hamstring Possible Refunds, Politico (Dec. 14, 2025): The Trump administration is racing to deposit the money it’s raised from tariffs into the U.S. Treasury, a tactic that could make it harder for companies to get refunds for duties the Supreme Court…
The current era of tariffs has unsettled the turn-of-the-century political consensus around free trade. What’s sometimes lost in this reshuffling is the texture of tariffs as currently imposed. In the current policy environment, this texture differs from the myriad exemptions and ratings under VATs or sales taxes. Tariff schedules tend to be significantly more granular…
As manufacturer’s orders slow and tariff refund suits proliferate in anticipation of the Supreme Court’s pending decision in Learrning Resources, it’s worth stepping back from pragmatics and taking in recent commentary on the decision’s implications for the Supreme Court’s jurisprudence, the United States’ foreign policy, and the Executive Branch’s ability to control the domestic economy.…
Tony Romm & Ana Swanson, Ahead of Tariff Ruling, Businesses Race to Secure Refunds, N.Y. Times (Dec. 3, 2025): From the buy-in-bulk retailer Costco to the canned-tuna company Bumble Bee Foods, some businesses are racing to get in line for tariff refunds, anticipating that the Supreme Court will soon rule against President Trump and force…
How will the One Big Beautiful Bill Act affect year-end charitable giving in 2025? While some donors have incentives to accelerate donations into the current taxable year, other donors benefit by deferring contributions to 2026. It’s time for taxpayers to build their Excel models and call their investment advisors. Details follow.
The One Big Beautiful Bill Act created new tax exemptions for qualified tips and qualified overtime pay, both of which take effect for 2025. There’s been a lot of administrative guidance on these provisions since July, it’s not a surprise that implementing these individual tax benefits has proven challenging—and may create significant confusion for individual…
Mindy Herzfeld (Florida), Rationalizing the Post-OBBBA International Tax Rules, Part 2, 120 Tax Notes Int’l 1416 (Dec. 1, 2025) The second Trump administration’s regulatory priorities for Treasury are twofold: implementation of the One Big Beautiful Bill Act (P.L. 119-21) and deregulation. The 2025-2026 priority guidance plan issued on September 30 — significantly pared down from prior years’ plans — highlights the shift…
Doron Narotzki (Akron) has a new working paper on SSRN, Predicting Tariff Decisions from Oral Argument Transcripts with AI Models. Here is the abstract:
Walter Hellerstein (Georgia) & Andrew Appleby (Tennessee), A State Tax Perspective on Proposed Federal Cryptoasset Guidance, 189 Tax Notes Fed. 1285 (Nov. 24, 2025). In this article, Hellerstein and Appleby consider the state tax implications of proposed federal income tax guidance on the treatment of cryptoassets.
On Friday, November 21, Judge Colleen Kollar-Kotelly issued a preliminary injunction barring the IRS from sharing certain taxpayer data with the Department of Homeland Security, stayed an April information-sharing agreement between the IRS and Immigrations and Customs Enforcement, and ordered the IRS to inform the District Court for D.C. before making further disclosures of taxpayer…
Americans are asking: When will people see lower taxes from the OBBBA, and how big will those spring refund checks be? And what’s the story with those $2,000 tariff refund checks? The Tax Foundation has some fact-checking on both points, with related commentary below the fold.
Andrew Duehren, The I.R.S. Tried to Stop This Tax Dodge. Scott Bessent Used It Anyway., N.Y. Times (Nov. 12, 2025) (quoting Walter D. Schwidetzky): It was an easy and, by all accounts, legal way to avoid paying thousands, and potentially millions, in federal taxes. Just set up an investment firm with the right legal structure,…
Two stories in flagship newspapers. Same topics, same day. Very different conclusions. In alphabetical order by author’s last name:
Conor Clarke (Wash U) & Ari Glogower (Northwestern), Tariffs and the Taxing Power: Historical Lessons for Major Questions and Nondelegation, 103 Wash. U. L. Rev. __ (forthcoming 2026):
Wall Street Journal: Trump’s Tax Cuts Are Exposing Companies to Biden’s Tax Hike: Democrats’ older alternative minimum tax claws back billions of dollars in savings from newer GOP law.
Penn Wharton released updated cost estimates for the OBBBA International Tax Reforms: Summary: We project that corporate tax revenue will decrease by $276 billion over 10 years on a conventional basis due to changes in international tax provisions related to the Section 250 deduction under OBBBA.
Adam Liptak, Will Trump’s Tariffs Survive Supreme Court’s ‘Major Questions’ Test?, N.Y. Times (Oct. 27, 2025): The Supreme Court used the “major questions doctrine” to reject much of the Biden administration’s agenda, including its efforts to address climate change, the Covid-19 pandemic and student debt. The court’s commitment to the doctrine will be tested next week when it hears arguments…
Tax Notes, Senators Question Legality of IRS CEO Position: Three Senate Democrats are asking Treasury Secretary Scott Bessent to explain the legal basis behind appointing Social Security Administration Commissioner Frank Bisignano as CEO of the tax collection agency.
As Sloan noted a few days ago, Friday was the final deadline for amicus briefs in the Trump tariff cases. I filed one of those briefs (in support of the companies challenging the Trump tariffs), alongside Jon Endean (Brooklyn), Ari Glogower (Northwestern), and Daniel Hemel (NYU). (The brief was also supported by the indefatigable students…
In a Wall Street Journal op-ed, AEI fellows Paul Ryan and Kyle Pomerleau revive House Republicans’ 2016 proposal for a destination-based cash flow tax (DBCFT) as an alternative to tariffs and a way to “finish the job” on tax reform initated by the Tax Cuts and Jobs Act—”the ultimate made-in-America policy.” Letters from Adam Michel…
In Learning Resources, Inc. v. Trump, No. 24-1287 (Sup. Ct.) and Trump v. V.O.S. Selections, Inc., No. 25-250 (Sup. Ct.), the Supreme Court is considering the Trump Administration’s authority to impose tariffs under the International Emergency Economic Powers Act (IEEPA). Oral arguments are Wednesday, November 5, at 10 a.m. Eastern. Law school faculty and affiliates…
Bloomberg, IRS Chief’s Gaffes, Sudden Exit Roil the Fractured Tax Agency Bloomberg, IRS Vets and Wild Cards: Trump’s Options for Replacing Long Bloomberg, NY, NJ Fail in Court Bid to Keep Their SALT Cap Workarounds Bloomberg, Trump Tax Law Squeezes Poor, Boosts Income for Wealthy, CBO Says Law360, Midyear Review: A Look At The Tax…