Entity Choice, Corporate Governance, and Tax Optimization: An Overview of the U.S. Legal Framework

Tax Optimization Legal Framing

Distinguish between tax avoidance and tax evasion is crucial for every business because the boundary that sets apart the two categories is blurred and a lot of businesses can find themselves entangled in unpleasant situations. Using lawful structures to minimize tax liability, take advantage of lawful structures explicitly permitted by statute and regulation and backed by disclosure and documentation, all these actions fall under the tax avoidance spectrum and are therefore permitted whereas concealment, falsification and sham transactions are typically associated with tax evasion. The doctrine further defines the tax avoidance practice as “The legal right of a taxpayer to decrease the amount of what otherwise would be his taxes, or altogether avoid them, by means which the law permits, cannot be doubted.” (Gregory v. Helvering, 293 U.S. 465 (1935) this sentence explicitly reminds that the course of actions that a business may undertake must be in accordance with the law and not intended to break it. Tax avoidance must also comply with other doctrines such as the “economic substance” doctrine, “business purpose” doctrine and the “substance over form” doctrine. The former, the economic substance, and the business purpose find their legal basis in the IRC §7701 which defines the two doctrines as follows: “transactions are not allowable if the transaction does not have economic substance or lacks a business purpose”, (1) the economic substance constitutes only if the transaction changes in a meaningful way the taxpayer’s economic position and the taxpayer has a substantial purpose for entering into such transaction meaning that the transaction the taxpayer is making must have effects that are not merely linked with taxes management and the purpose must have a real impact on the company’s finances. The substance over form doctrine finds its foundations into judge sentences rather than in statutory laws: Commissioner v. Court Holding Co., 324 U.S. 331 (1945) as well as Knetsch v. United States, 364 U.S. 361 (1960) are two of the said decisions that influenced the current framing of the substance over form doctrine. In Commissioner v. Court Holding Co. there was evidence to support the finding of the tax court that the transaction in question, a sale by stockholders of property conveyed to them as a liquidating dividend, was instead a sale by the corporation; the tax court found that the gain of that sale was taxable (2). The appeal to the supreme court was rejected and the said court stated that the selling was made by the corporation and its transfer to its stockholders was only an expedient to avoid taxation while the corporation didn’t leave the negotiation. With this decision the court was affirming the following principle: “The incidence of taxation depends upon the substance of a transaction.” Therefore, making relevant the substance over the form of the transaction, while the form matters only on a secondary level the primary concern must be the substance of the transaction which is the part relevant for the taxation process (2). In Knetsch v. United States a taxpayer purchased single premium deferred annuity bonds with a face value of 4,000,000 dollars, he paid only 4,000 dollars in cash and after prepaying large amount of interests the taxpayer financed the remainder through nonrecourse loans from the issuing insurance company. Shortly after he borrowed back the entire increase in the bonds’ cash value and he continued to do that for several years and eventually in 1956 the annuity bonds were surrendered, and the taxpayer received only 1,000 dollars neat (3). The issue here was: were the amounts paid as interest deductible as interest paid on indebtedness? The supreme court denied the deductions and stated that the transaction was a sham because it created no genuine indebtedness and the payments were not deductible interests. The reason why the court came to that conclusion was that the arrangement produced no meaningful economic effect apart from tax benefits and that the taxpayer’s economic position remained virtually unchanged therefore falling under the economic substance doctrine (3). 

Framing tax evasion is simpler and must begin with the definition of its framing: “Any person who willfully attempts in any manner to evade or defeat any tax shall be guilty of a felony” the cited definition can be found into 26 U.S.C. § 7201 which describes and frames tax evasion as a felony offense that carries prison time, heavy fines and financial consequences. To constitute tax evasion a course of action undertook by a citizen must be proved to have caused a tax deficiency, moreover an affirmative act to evade or defeat the tax has to be present and willfulness must be present as well (4). Willfulness is defined by the Cheek v. United States, 498 U.S. 192 (1991) sentence: A voluntary, intentional violation of a known legal duty. This broad definitiom may excludes good faith misunderstandings but does not forgive disagreement with the law. Another distinction that has to be made is the one between Civil and Criminal tax fraud: the boundary is crossed when there’s fraud, deception, intentional concealment or fabrication of facts. In the eventuality of tax evasion corporate criminal liability must be put under the scope: the leading case on the matter is New York Central & Hudson River R.R. Co. v. United States, 212 U.S. 481 (1909) which is responsible for how the crime is imputed: “Congress can impute to a corporation the commission of certain criminal offenses and subject it to criminal prosecution therefor” (5), therefore it is clear how responsibility for corporation works: A corporation is responsible for acts not within its agent's powers, strictly construed, but assumed to be done by him when employing authorized powers, and in such a case no written authority under seal is necessary (5). Corporations must be aware that their actions have consequences and must organize their structure accordingly.

Entity Choice and Governance 

The entity choice is one of the most important choices that a corporation has to face: there are three main types of entities that are crucial to determine the tax planning of the corporation itself: C-Corporation, S-Corporation and LLC: choosing between these categories determines level of taxation, allocation of income and losses, availability of deduction and credits and governance structure. A C-Corporation is a legal structure where the company’s assets are separate from the owners’ assets, the owners of a C corporation are the shareholders whose role is the conduction of the corporation business by investing money or assets (6), they are also entitled to the dividends the corporation pays and if it liquidates they are entitled to the assets after all the creditors are paid. The C-Corporation tax structure is organized as follows: the shareholders are taxed separately from the corporate entity for the income received from the entity itself and, additionally, C corporations are also subject to corporate income taxation thus making the taxation double. This type of corporation is chosen mainly by high-income and high-tax bracket owners (6). An S corporation is a small business that elects to be taxed under the subchapter S of the IRS, this tax design enables corporation to pass their corporate income, credits and deductions through to their shareholders (this entity is known for having a pass through structure) and they divide the profits or the losses among themselves and the income is reported individually (7). This kind of structure may be chosen to avoid double taxation and because S corps also offers limited liability protection. In fact the owners of an S corps are not held personally liable, instead, the liability is taken on by the business as an entity. Due to these advantages S corps come under a heavier scrutiny from the IRS rather than C-corps. S corporations must allocate profits and losses based strictly on ownership percentage and share number and pay reasonable salaries to shareholders-employees before any

corporate distributions to remain in compliance. But more importantly filing as an S corps puts significant limits on growth: only business with 100 or fewer shareholders are allowed to file as an S Corp making this structure unsuitable for bigger business that may opt for other structures (7). An LLC is a form of legal business partnership that consists of members, or people who hold some ownership equity in the LLC. These members can be founders or executives of the company, or employees who are granted equity as part of the compensation package (9). The liability protection is brought by the LLC to its members, they are in fact liable up to their investment in the LLC, as for the taxes If the multi-member LLC is taxed as a partnership by default, it brings flow-through taxation, which means that the LLC does not pay taxes on its income at the entity level; instead, the LLC’s income, deductions, gains and losses flow through to its members, who then report those amounts on their individual tax returns via Schedule K-1 (8). The LLC avoids double taxation because it is taxed as a pass-through entity and therefore there are not taxes on LLC profits at entity level, only at members level. This is in contrast with corporations that file and pay taxes on the corporation’s income to the IRS and shareholders may also owe individual income taxes on the company’s distributions (for instance it happens with the C Corps) (9). Once the structure has been chosen the company must decide the governance mechanism: the three more common are Board Independence, executive Compensation and institutional ownership. Board Independence can influence tax avoidance in two ways: Monitoring Hypothesis (where independent directors can reduce managerial opportunism, limit overly aggressive tax shelters and protect firm reputation) and Shareholder-Value alignment hypothesis (where independent boards align managers with shareholders and encourage efficient tax planning). The executive compensation can be based on equity, this procedure ties manager wealth to after tax earnings and increase sensitivity to reported net income moreover it encourages tax efficient strategies. Lastly the institutional ownership which is essentially divided into two categories based on the institution that retain control of the company: Long term Institutions and Hedge funds. Long term institutions prefer stability, avoid reputational controversy and prefer to avoid highly aggressive tax avoidance in order to not jeopardize their reputation, whereas on the other hand Hedge Funds are less keen on long term vision and focus more on short term earnings thus encouraging tax efficiency and a subsequent more aggressive approach to tax avoidance.  These were the possibility that a company faces when decides to start into the business world, each one of them have its characteristics, pros and cons and must be thoughtfully chosen. 

Case Study – Perrigo v. United States

In late January 2026, the western district of Michigan entered final judgement awarding Perrigo, a private label over the counter pharmaceuticals manufacturer, 89 million dollars in tax refunds after rejecting the IRS’s attack on the company’s cross border omeprazole structure. The facts of the case are the following: Perrigo partnered with an Israeli company Dexcel to bring a generic OTC omeprazole product to the US under a 2005 supply and distribution agreement. In 2006 Perrigo shifted the contract rights from a US affiliate (LPC) to a disregarded LLC owned by an Israeli partnership then subcontracted US distribution back to LPC as part of a broader initiative (10). Then in the period between 2009 and 2012 the IRS argued that the intercompany assignment lacked economic substance and, in the alternative, Section 482 allowed the IRS to reallocate virtually all the Israeli entity’s income back to the US entity. The court later found that the contract assignment had real economic substance and was not a sham, even though tax minimization was an important driver. Several facts carried the

day: The restructuring was part of a company-wide globalization strategy for its growing international business, not a one-off tax play (10). Perrigo sought and followed sophisticated professional advice in designing the structure. (10). Evidence supported that the assignment actually occurred in 2006, notwithstanding later-executed documentation with retroactive effective dates, which the court viewed as common in large multinationals. (10). The IRS emphasized that the Israeli LLC had minimal employees and thin capitalization at the outset, arguing it could not realistically bear risk or perform substantive functions. The court rejected that narrative, concluding that enough risk and responsibility were genuinely shifted to sustain the transaction under the common-law economic substance and sham-transaction doctrines (the case did not apply codified section 7701) (10). The court instead endorsed Perrigo’s basic DCF approach, with modifications, stressing that: Arm’s-length pricing must be determined on an ex-ante basis—using information known or reasonably knowable at the time of the transaction, Financial projections prepared for non-tax business purposes as of November 2006 were an appropriate starting point. After the court’s adjustments (including rejecting fully loaded actual distribution costs and multiple discount rates), the resulting implied royalty was about 11.12 percent—roughly double Perrigo’s litigating position of 5.25 percent, but still far closer to the taxpayer than to the Service. The court described the government’s Section 482 position as arbitrary and capricious (10). The case shows how the economic substance doctrine applies to the real world and how it impacts business lives. The importance of making the right choices when it comes do decide how to plan tax payments are crucial in order to not fall into years-long court battles.