Historical Genesis: Section 174 and the Internal Revenue Code of 1954

Before Section 174 was enacted in 1954, research costs were treated under general tax principles rather than a dedicated R&E provision. Ordinary research expenses connected with an existing business could sometimes be deducted, while costs associated with developing capital assets or beginning a business raised capitalization questions. It is therefore inaccurate to describe all pre-1954 R&D costs as necessarily capitalized. Where capitalization applied, recovery depended on the character of the asset and applicable depreciation, loss, or disposition rules. Uncertainty over treatment was particularly significant for smaller enterprises and independent inventors.

Congress introduced Section 174 to encourage research and simplify the treatment of qualifying expenditures. The original provision permitted an election to deduct qualifying R&E expenditures currently, or an election to amortize certain capitalized expenditures over at least sixty months beginning when benefits were first realized. The expenses had to be incurred in connection with the taxpayer’s trade or business. Snow v. Commissioner later explained that this language was broader than Section 162’s requirement of carrying on a trade or business. The table compares historical rules with related provisions; Section 195 was enacted later and did not govern the Best Lock litigation.

The 1959 Decision: Best Lock Corp. v. Commissioner and the Perils of Private Inurement

Best Lock Corp. v. Commissioner, 31 T.C. 1217 (1959), involved consolidated disputes concerning Best Lock Corporation, Frank E. Best and his wife, and Best Foundation, Inc. The exemption issue concerned the Foundation, not the commercial lock manufacturer. The litigation also addressed patent-related payments, the treatment of income, and other corporate deductions. Its exemption discussion concerns the requirement that a charitable organization serve exempt purposes rather than substantial private interests.

Facts of the 1959 Case

Frank Best controlled the related Foundation and directed its activities. The record discussed financial assistance, loans, investments, and projects associated with people or ventures in which he was interested, alongside religious and scientific activities. The exemption question was whether the Foundation operated exclusively for the statutory exempt purposes. Control was relevant to the facts, but founder control alone does not automatically defeat exemption.

The Foundation failed to qualify for exemption under Section 101(6) of the 1939 Code. This should not be described as a revocation of Best Lock Corporation’s charitable status. The 1959 decision also reconsidered conclusions in the earlier opinion at 29 T.C. 389 (1957), including the treatment of royalties as constructive dividends. The separate identities of the corporation, Foundation, and individual taxpayers matter when describing both the transactions and the court’s holdings.

Implications for Patent Depreciation and R&D Cost Recovery

A separate issue concerned cost recovery for patent rights and patent applications. Patent applications historically presented depreciation difficulties because their useful duration could be uncertain. Best Lock is among the authorities recognizing depreciation treatment in particular arrangements involving such rights. Lan Jen Chu v. Commissioner, 486 F.2d 696 (1st Cir. 1973), discussed Best Lock at page 1234 and explained that uncertainty over the amount of annual depreciation does not necessarily mean that a patent application lacks depreciable character.

Income-linked acquisition payments may support cost recovery under applicable depreciation principles, but this is not a general rule allowing all intellectual-property costs to be deducted as R&E. The acquisition of an existing patent or invention must be distinguished from research undertaken to develop an invention and from legal costs incident to obtaining a patent. Treasury Regulation Section 1.174-2 excludes the acquisition of another person’s patent, model, production, or process from its definition of research expenditures. Modern treatment also depends on the applicable intangible-asset rules and the tax year.

The 1965 Breakthrough: Best Universal Lock Co., Inc. v. Commissioner

Best Universal Lock Co., Inc. v. Commissioner, 45 T.C. 1 (1965), concerned consolidated cases involving Best Universal Lock, Best Lock Corporation, and Frank and Emilia Best for 1959 through 1961. The research issue included Best Lock Corporation’s experimental expenses and Frank Best’s individual expenses after he continued one project on his own. The opinion is an important example of research conducted within an established inventive business, including work outside the taxpayer’s principal commercial product line.

The Trade or Business of Inventing

The disputed work involved an unpickable lock, an isothermal air compressor, and project 160 H. Best Lock Corporation had a history of experimentation and licensing arrangements covering both lock and non-lock inventions. The Commissioner’s objections included the connection with the corporation’s business, its proprietary interest in the experiments, the related-party arrangements, and substantiation of expense categories. The dispute was not simply about the absence of sales of a new key-in-the-knob lock.

The Tax Court allowed the disputed corporate research expenditures under Section 174 based on the record of business activity and the company’s interests under the licensing arrangements. It also found that Frank Best was already engaged in business as an inventor and allowed his qualifying 1961 experimental expenses on the air compressor. The prospect of commercial exploitation through royalties or otherwise was significant even though particular inventions had not yet generated income. The often-quoted observation that inventing can be a trade or business like manufacturing or selling appears in Stanton v. Commissioner, 399 F.2d 326 (5th Cir. 1968), and should not be attributed verbatim to Best Universal Lock.

The “In Connection With” Standard vs. Section 162

Section 162 generally concerns ordinary and necessary expenses of carrying on an existing trade or business; earning revenue is not itself a universal prerequisite. Historical Section 174 used the broader phrase in connection with a trade or business. Best Universal Lock applied that provision to taxpayers already engaged in manufacturing and inventive activities. It did not itself establish that every preliminary investigation of a possible new business qualifies. Snow later addressed the preoperational issue directly. The following table separates the actual research holding from general rules that should not be represented as distinct holdings in Best Universal Lock.

Jurisprudential Ripple Effects: From Best Lock to Snow v. Commissioner

Snow v. Commissioner, 416 U.S. 500 (1974), concerned a limited partner’s share of losses from a partnership developing an incinerator. The venture had no sales in the year at issue. The Supreme Court reversed the denial of the research deduction and concluded that Section 174 did not require the taxpayer to be carrying on an operating business in the same manner as Section 162.

Justice Douglas’s opinion emphasized Congress’s purpose of encouraging small and growing businesses and the significance of the different statutory language. Best Universal Lock provides related historical context, but it should not be presented as the sole source of Snow’s reasoning. The decisions address different factual settings: established inventive activity in Best Universal Lock and preoperational development in Snow. Neither decision eliminates the need to establish the required connection between the taxpayer, the expenditures, and a genuine business undertaking.

The Individual Inventor and the “Amateur” Limitation

The favorable treatment of business research does not extend automatically to personal experimentation. In Stanton v. Commissioner, 399 F.2d 326 (5th Cir. 1968), the court found insufficient continuity and regularity in the taxpayer’s boat-development activities. In Mayrath v. Commissioner, 41 T.C. 582 (1964), affirmed, 357 F.2d 209 (5th Cir. 1966), the dispute concerned claimed experimental costs associated with the taxpayer’s residence. These are fact-specific decisions, not a separately codified amateur-inventor test. Mayrath also preceded the 1965 Best Universal Lock decision at the Tax Court level.

Stanton recognized that a hope of profit alone did not establish that inventing was the taxpayer’s trade or business. Mayrath emphasized substantiation and the distinction between business research and personal living expenses. These decisions support keeping evidence of the nature, regularity, commercial objectives, and cost of inventive activity. Their preoperational implications must be considered in light of the later Supreme Court decision in Snow, rather than used to impose a universal requirement of current sales or an already marketed product.

The Intersection of Patent Law and Tax Policy: The 1996 Federal Circuit Case

The later case Best Lock Corp. v. Ilco Unican Corp., 94 F.3d 1563 (Fed. Cir. 1996), concerned a design patent for a portion of a key blade blank. It was patent litigation, not an R&D deduction or research-credit case. Any comparison with tax incentives is an analytical comparison between different legal requirements, not a tax holding of the Federal Circuit.

The Functionality Doctrine

The Federal Circuit majority affirmed invalidity because the claimed blade shape was dictated solely by the need to fit the corresponding keyway. Judge Newman dissented. The holding concerned the particular claimed design and does not mean that every useful article is ineligible for design-patent protection. An ornamental design of a useful article may be protectable when the governing statutory requirements are satisfied.

Patent ornamentality and research-credit eligibility require separate analysis. Section 41 requires qualifying research to meet its statutory tests, including a permitted purpose concerning function, performance, reliability, or quality, technological information, and a qualifying process of experimentation. Research relating to style, taste, cosmetic, or seasonal design factors is excluded from the permitted-purpose test. A functional feature, an invalid design patent, or an issued patent does not by itself prove tax-credit eligibility. The patent result therefore cannot establish that Best Lock’s development costs qualified for a credit.

Contemporary Implications: The Tax Cuts and Jobs Act (TCJA) and Beyond

The TCJA required capitalization of specified R&E costs incurred in tax years beginning after December 31, 2021, with five-year amortization for domestic research and fifteen-year amortization for foreign research, using a midpoint convention. That is no longer a complete statement of current law. Public Law 119-21, enacted July 4, 2025, added Section 174A, allowing current deductions for qualifying domestic R&E expenditures in tax years beginning after December 31, 2024. Section 174 continues to require fifteen-year amortization for foreign research. Section 174A also permits an election to capitalize and amortize eligible domestic expenditures over at least sixty months, subject to its conditions.

The Enduring Relevance of Best Lock Under Sections 174 and 174A

The connection with a trade or business remains relevant under both Section 174 and Section 174A. Best Universal Lock and Snow help explain that concept in their historical settings, but the current statute and applicable guidance govern the timing of deductions. Expenditure outside these provisions does not automatically become permanently capitalized: its treatment depends on other applicable rules, and personal expenses may be nondeductible.

Research outside an existing product line can be connected with a taxpayer’s business, as the non-lock experimentation in Best Universal Lock illustrates. The result depends on the actual activities, rights, and commercial circumstances; describing an enterprise as a business of innovation is not sufficient. Software, artificial-intelligence, and energy projects must be evaluated under the applicable research-cost rules. Section 41 credit eligibility must then be assessed separately. Transition provisions also permit accelerated recovery of certain remaining domestic research costs from tax years beginning in 2022 through 2024, subject to elections and procedural requirements described in Revenue Procedure 2025-28 and subsequent guidance.

Mathematical Impact of Amortization

The timing difference can be illustrated using R dollars of eligible research expenditure, a constant marginal tax rate T, and an annual discount rate i. Assume the taxpayer can use each deduction when it arises, and ignore research credits, Section 280C adjustments, state taxes, and other limitations. A current deduction produces the following undiscounted tax benefit. This illustrates historical expensing and qualifying domestic expensing under Section 174A; it is not a calculation of the Section 41 credit.

B_expense = R × T

For comparison, under the TCJA five-year domestic amortization rule, a full twelve-month tax year and the midpoint convention produced a first-year deduction equal to ten percent of the expenditure:

B_year1 = (R ÷ 5 × 0.5) × T = 0.1 × R × T

That five-year recovery period spans six tax years: ten percent in the first year, twenty percent in each of the next four years, and ten percent in the sixth. If the first year’s tax benefit is valued at time zero, the discounted total is:

B_total = R × T × [0.1 + 0.2/(1+i) + 0.2/(1+i)² + 0.2/(1+i)³ + 0.2/(1+i)⁴ + 0.1/(1+i)⁵]

For a positive discount rate, delaying otherwise usable deductions reduces their present value. The example describes the TCJA domestic schedule before any applicable transition election, not a mandatory schedule for all current domestic research. Qualifying research costs and qualified research expenses for the credit are different categories. Patent-application legal fees may be research expenditures under applicable rules without being Section 41 credit expenses; prototypes, supplies, employee time, laboratory property, and contract work each require their own classification. Best Lock does not guarantee either a deduction or a credit for every such cost.

Governance, Control, and the Audit Risk

The Foundation’s exemption dispute illustrates why an organization’s activities and transactions must match the legal conditions for its claimed tax treatment. Private inurement is an exempt-organization doctrine, however, and is not a separate Section 41 eligibility test imposed on every closely held commercial company. Founder control alone neither establishes nor defeats a research deduction or credit.

Closely held corporations and partnerships should document the business purposes of research expenditures, relevant ownership or licensing rights, and the connection between activities and claimed costs. Personal projects and living expenses must be distinguished from business research. Commercial taxpayers’ deductions and credits are evaluated under the applicable business-expense, research, credit, capitalization, and substantiation provisions. The Foundation’s exemption result should not be substituted for those rules.

Final Thoughts

The Best Lock litigation illustrates several distinct issues in federal tax law: the qualification of a related foundation for exemption, cost recovery for patent rights, and research undertaken within an established business of inventing. Keeping the taxpayers, tax years, and legal questions separate is essential to understanding the decisions accurately.

Best Universal Lock supports the treatment of genuine business experimentation beyond a taxpayer’s existing product line. Snow provides the Supreme Court’s broader guidance on preoperational research. The 1996 design-patent dec