Tax Law Commons^™

Algorithmic Tax Ownership, Young Ran (Christine) Kim, Dmitry Erokhin

Articles

Tax ownership is a crucial concept for determining tax liabilities, compliance, and enforcement. However, neither the courts nor the IRS has provided clear guidance on how to analyze it. Since the Supreme Court first outlined a twenty-six-factor test for determining tax ownership in Frank Lyon Co. v. United States in 1978, this multifactor test has remained largely unchanged, and there has been no further guidance from the courts or the IRS to this day. Even tests with shorter lists of factors only add to the confusion regarding compliance and enforcement, as there is no clarity on which factors are most …

Is Tax “Law”?, Luís C. Calderón Gómez

Articles

Although taxation remains a hotly contested issue in debates by both politicians and political theorists—over the optimal size of government, distributive (and sometimes corrective) justice, or even the legitimacy of current private property arrangements—taxation has been largely ignored by legal theorists, to the detriment of both tax law and legal theory.  This Article argues that tax law, driven by its battle against tax evasion, is in deep conflict with widely accepted conceptions of “legality”—that is, the qualities that make a rule distinctively and normatively “law.”  This matters because legality is a key buttress in jurisprudential and political theory accounts that …

Can They Take Your Money If You’Re Not Here ?, Cardozo Tax Law Society

2025–2026 Flyers

Come listen to a mock trial of Professor Zelinsky's ongoing case against New York for a tax assessment.

Property Rights V. Taxpayer Rights: The Battle Over Tax Foreclosures, Stewart E. Sterk

Articles

No abstract provided.

How The U.S. Constitution Shapes International Tax Law: Instrument Choice In Tax Agreements, Noam Noked, Young Ran (Christine) Kim, Reuven S. Avi-Yonah

Articles

The U.S. Constitution’s Treaty Clause, which requires Senate approval by a two-thirds vote for treaties, has significantly influenced the development of international tax law. This Article examines the implications of Senate supermajority requirements on bilateral and multilateral tax treaties and agreements, alternative instruments, relevant international tax standards, and global tax governance.

Historically, tax treaties have been approved exclusively as Article II treaties requiring Senate approval. The difficulty of entering into treaties with the United States has influenced the instrument choice and design of U.S. and international tax standards. To address this challenge, several U.S. and international tax reforms have employed …

Brief Of Edward A. And Doris Zelinsky In The Appellate Division, Third Department, New York Supreme Court, Edward A. Zelinsky, Doris Zelinsky

Amicus Briefs

To combat COVID, New York in 2020 forbade an out-of-state employee like the petitioner to commute into his New York office, forcing him to instead work at his home in Connecticut. New York now takes the remarkable position that it can tax the income Governor Cuomo forced this out-of-state employee to earn at his home exclusively outside New York. That position is as wrong as it sounds.

Both as a matter of New York law and of federal constitutional law under the Due Process and dormant Commerce Clauses, New York may not tax the income the petitioner earned exclusively at …

Getting To Know Tax Law: A Conversation With Professors And Practitioners, Cardozo Tax Law Society

2025–2026 Flyers

No abstract provided.

Tax Law Panel, Cardozo Tax Law Society, Heyman Center On Corporate Governance, Cardozo Business Law Society

2025–2026 Flyers

Joined By:

• Kirkland & Ellis
• Troutman Pepper Locke
• Lewis Brisbois
• Legal Services of NYC

Do Civil Penalties Punish? The Fbar Penalty And The Case For An Emboldened Excessive Fines Clause, Scott Oatkin

Cardozo Law Review

The Report of Foreign Bank and Financial Accounts (FBAR) regime authorizes the IRS to impose severe penalties—up to the greater of $100,000 or fifty percent of the account balance—for failure to report foreign bank accounts exceeding $10,000. While the Eighth Amendment protects Americans from “excessive fines,” circuit courts are split on whether the FBAR penalty constitutes a fine and is subject to constitutional scrutiny. Some courts have found that the FBAR penalty is wholly remedial and beyond the reach of the Excessive Fines Clause, but this Note argues that such an interpretation is inconsistent with the history and case law …

Defending U.S. Citizenship-Based Taxation In Theory And In Practice: An Essay On Fiscal Citizenship In A Fatca World, Edward A. Zelinsky

Cardozo Law Review

For some Americans, a surprising aspect of the saga of Meghan Markle, also known as the Duchess of Sussex, was learning that, as a U.S. citizen living in the United Kingdom, the Duchess was obligated to pay U.S. income taxes on her worldwide income.[1] President Donald Trump has echoed concerns raised in this controversy about the United States’ worldwide income taxation of its citizens living abroad. In particular, during his 2024 presidential campaign, President Trump called for “ending the double taxation of overseas Americans.”[2] I found myself drawn into this debate about the United States’ citizenship-based taxation by virtue of …

U.S. Territories And The Criminal Law Curriculum, Emmanuel H. Arnaud

Articles

No abstract provided.

The Samuel & Ronnie Heyman Center On Corporate Governance Invites You To: Taxes Vs Tariffs, Heyman Center On Corporate Governance, Cardozo Business Law Society, Luís Calderón Gómez, Harlan Grant Cohen, Scott Maberry, Maria Celis, Gregory Spak

2025 Event Invitations

Market participants are preparing for the tax and trade policies pursued by the second Trump administration. Regarding taxes, proposals include making expiring Tax Cuts and Jobs Act provisions permanent, ending green energy subsidies from the Inflation Reduction Act, and exempting certain income from taxation. Proposed tariffs range from retaliatory measures-in-kind to targeting Chinese market participation to a universal 20% import tariff. On the campaign trail, the President often presented these proposals as part of a shift of financial burdens from domestic taxpayers to foreign companies. In a panel discussion with tax and trade experts, we will seek to determine the …

The Service’S Overgenerous Tax Treatment Of Crowdfunding, Jeffrey H. Kahn

Cardozo Law Review de•novo

The Internal Revenue Service released a fact sheet that defines crowdfunding as a method to raise money on websites by soliciting contributions from a large number of people. This article considers how crowdfunding is treated for tax purposes and argues that, contrary to the fact sheet's determination, all donations collected by commercial websites should be income to the recipient.

Can They Take Your Money If You're Not Here?, Tax Law Society

2024–2025 Flyers

No abstract provided.

Taxation’S Limits, Luís C. Calderón Gómez

Articles

Countless pages have been devoted to the question of why everyone should pay tax, yet its opposite has gone largely unnoticed: why should some people and organizations not pay tax? Our tax system exempts from ordinary income taxation a wide and diverse array of people and organizations engaged in significant economic activity—from parents providing childcare services for their family to consular activities and charities operating animal shelters—seemingly without a convincing explanation. Perhaps because of the dizzying diversity of tax-exempt activities, scholars and policymakers have avoided comprehensively or coherently justifying our exemption regimes.

This Article develops a novel normative theory that …

Digital Barter Taxes: A Legal Defense, Young Ran (Christine) Kim, Darien Shanske

Articles

This short essay, aimed at state legislators, defends digital barter taxes from the most common legal objections.

Digital Barter Taxes Are Good Tax Policy, Young Ran (Christine) Kim, Darien Shanske

Articles

This short essay, aimed at state legislators, argues that digital barter taxes are good tax policy.

Reply Brief Of Edward A. And Doris Zelinsky In The New York Tax Appeals Tribunal, Edward A. Zelinsky, Doris Zelinsky

Amicus Briefs

Three reasons of state law independently compel a refund of the New York income tax Professor Edward A. Zelinsky paid on the Cardozo Law School salary Professor Zelinsky earned during the COVID period from March 15, 2020 through December 31, 2020. That salary was not New York source income because Professor Zelinsky earned that COVID period salary at his home in Connecticut “wholly without” New York’s borders. 20 N.Y.C.R.R. § 132.4(b). In addition, New York’s “convenience of the employer” rule does not apply to that COVID period salary because Professor Zelinsky’s remote work at home was for Cardozo’s necessity rather …

Taxing The Metaverse, Young Ran (Christine) Kim

Articles

The buzz surrounding the Metaverse has been growing steadily for the past couple of years, but the tax implications of this novel ecosystem remain fuzzy to most tax scholars. Such uncertainty is concerning, given the potential and momentum of this emerging technology. Although the Metaverse evolved from online video games focused only on user consumption, it now allows users to produce income and accumulate wealth entirely within the Metaverse. Current law seems to defer taxation of such until a realization or cash-out event. This Article challenges this approach and offers novel arguments justifying Metaverse taxation. Because economic activity within the …

Brief For Amicus Curiae Professor Edward A. Zelinsky In Support Of Appellants And Reversal, Edward A. Zelinsky

Amicus Briefs

DOL’s tie-breaking rule violates ERISA’s duty of loyalty under ERISA § 404(a)(1)(A). ERISA’s duty of loyalty requires ERISA-regulated trustees to invest plan resources for the “exclusive purpose of . . . providing” economic benefits to plan participants and their beneficiaries, “solely in the interest of the participants and beneficiaries.” The tie-breaking rule violates this stringent statutory duty of loyalty because it permits plan trustees investing plan resources to consider “collateral benefits,” i.e., the welfare of third parties or social goals. But ERISA‟s plain text does not permit this result. The words ““solely” and “exclusive purpose” in § 404(a)(1)(A) do not …

Common Sense Recommendations For The Application Of Tax Law To Digital Assets, Luís Calderón Gómez, Young Ran (Christine) Kim, Edward A. Zelinsky

Online Publications

In response to the Joint Committee on Taxation’s July 2023 request for comments on application of various Internal Revenue Code sections on digital assets, we propose a consistent set of rules to apply current law to digital assets. We highlight that the underlying economics and characteristics of transactions should be the primary concern for the application of rules and the valuation of digital assets. We believe any digital asset rules should (1) treat classes of digital assets with unique characteristics differently based on their economics, (2) minimize incentives for users to engage in tax-motivated structuring of transactions, and (3) allow …

Reply Brief Of The Petitioners-Taxpayers Edward A. And Doris Zelinsky, Edward A. Zelinsky

Amicus Briefs

The Division’s Brief confirms that the Tribunal should rule for the taxpayers, Edward A. and Doris Zelinsky Perhaps most egregiously, the Division disparages binding factual stipulations to which the parties agreed at the outset of this litigation. These stipulations confirm that, from March 15, 2020 through December 31, 2020 (“the COVID period”), Professor Zelinsky had no New York office or classroom available to him. Consequently, Professor Zelinsky taught his classes and met with students exclusively on zoom from his Connecticut home. He did not step foot in New York for this nine and one-half month period.

The stipulated facts lead …

Tax Reporting As Regulation Of Digital Financial Markets, Young Ran (Christine) Kim

Articles

FTX’s recent collapse highlights the overall instability that blockchain assets and digital financial markets face. While the use of blockchain technology and crypto assets is widely prevalent, the associated market is still largely unregulated, and the future of digital asset regulation is also unclear. The lack of clarity and regulation has led to public distrust and has called for more dedicated regulation of digital assets. Among those regulatory efforts, tax policy plays an important role. This Essay introduces comprehensive regulatory frameworks for blockchain-based assets that have been introduced globally and domestically, and it shows that tax reporting is the key …

Brief Of The Petitioners-Taxpayers Edward A. And Doris Zelinsky, Edward A. Zelinsky

Amicus Briefs

As a matter of state law, New York’s own regulations and case law do not permit taxation of Professor Zelinsky’s income earned at home in Connecticut for the COVID-19 period starting on March 15, 2020. Even if New York law permitted the taxation of Professor Zelinsky’s Cardozo salary during this COVID-19 period, as a matter of federal constitutional law, the Due Process and dormant Commerce Clauses do not permit New York’s taxation of this salary earned in Connecticut. In addition, Zelinsky v. Tax Appeals Tribunal, 1 N.Y. 3d 85 (2003), cert. denied, 541 U.S. 1009 (2004), does not apply to …

The Commerciality Of Non-Profit Hospitals Requires Them To Be Taxed: Bringing The Debate To A Conclusion, Edward A. Zelinsky

Articles

It is now time to conclude our prolonged debate about the tax-exempt status of nonprofit hospitals. The contemporary nonprofit hospital is a commercial enterprise, materially indistinguishable for tax purposes from its profit-making, taxed competitor. The federal income tax and the states’ income, sales and property taxes should treat all hospitals alike, regardless of whether such hospitals are nonprofit or for-profit enterprises. In the interests of equity and efficiency, these similar institutions should be taxed similarly.

As a political matter, nonprofit hospitals will continue to defend their tax-exempt status. Like any other lucrative, vested interest, nonprofit hospitals will continue to fight …

Taxing Digital Platforms, Andrew Hayashi, Young Ran (Christine) Kim

Articles

The proliferation of digital services taxes (DSTs) in Europe is generally understood as a way for those countries to claim taxing rights over the profits of large digital platforms such as Google, Facebook, and Amazon. Under prevailing norms of international income taxation, these businesses had been able to avoid paying taxes in countries where they had no physical presence, even if they had many users in those countries. But the rise of big tech has generated a set of regulatory and political challenges, and tax is only one of these. The adoption of DSTs is not only about the fair …

Brief Of Amici Curiae Tax Law Professors, Young Ran (Christine) Kim

Amicus Briefs

Professors Reuven S. Avi-Yonah, David Gamage, Orly Mazur, Young Ran (Christine) Kim, and Darien Shanske (collectively, “Tax Law Professors”) write this amici curiae brief in support of the Appellant in COMPTROLLER OF MARYLAND v. COMCAST — the Maryland Digital Advertising Case.

Many digital transactions currently evade sales taxation in Maryland, even though the closest non-digital analogues are subject to tax. Specifically, digital advertising platforms like Respondents obtain vast quantities of individualized data from and on Marylanders in currently untaxed transactions. The scope and value of these transactions is vast and growing, as they allow advertising platforms the lucrative opportunity to …

Too Good To Be True: Private Placement Life Insurance Policies, Luís C. Calderón Gómez

Articles

In this article, Calderón Gómez examines a tax avoidance scheme involving private placement life insurance policies — large policies that potentially allow wealthy taxpayers to move their traditionally tax-inefficient investments in private equity and hedge funds into a life insurance policy and accumulate, borrow against, and pass on those investment gains effectively tax free — and sketches some possible alternatives to stop the abuse of these policies.

State Digital Services Taxes: A Good And Permissible Idea (Despite What You Might Have Heard), Young Ran (Christine) Kim, Darien Shanske

Articles

Tax systems have been struggling to adapt to the digitalization of the economy. At the center of the struggles is taxing digital platforms, such as Google or Facebook. These immensely profitable firms have a business model that gives away “free” services, such as searching the web. The service is not really free; it is paid for by having the users watch ads and tender data. Traditional tax systems are not designed to tax such barter transactions, leaving a gap in taxation.

One response, pioneered in Europe, has been the creation of a wholly new tax to target digital platforms: the …

Whose Debt Is It Anyway?, Luís C. Calderón Gómez

Articles

Every year, companies issue hundreds of billions of dollars of debt with a feature carrying unclear tax consequences. So do individuals, who frequently tie their most significant financial asset to this type of instrument. Yet this instrument is not an exotic or innovative financial derivative, but is simple vanilla debt with two or more borrowers, or “co-obligated debt”. Co-obligated debt poses a conceptual problem for the law because it does not fit neatly into the simple and dyadic legal framework underlying the law’s conception of debt, where one creditor lends money to one borrower in exchange for a direct promise …