Thermal Circuits, Inc. v. Commissioner: $4.3M Leasehold Improvement Dispute

The $4.3 Million Stakes: Thermal Circuits' Leasehold Gamble

Thermal Circuits, Inc. just learned the hard way that the Tax Court will not rewrite the rules on customer-funded leasehold improvements—even when the customer is a $5 billion tobacco giant. In a $1.32 million deficiency for 2017 plus a $255,000 accuracy-related penalty, the court ruled that the $4.3 million NVT paid to expand Thermal’s manufacturing facility was taxable income, not an excludable capital contribution under § 118. The IRS had argued the funds were compensation for Thermal’s future production of foil heaters; Thermal countered that the money was a permanent capital infusion to increase capacity. But the Tax Court sided with the IRS, holding that the payments were tied to NVT’s demand for heaters—a quid pro quo that disqualified them from § 118’s exclusion. The court’s decision underscores its willingness to police the boundaries of § 118, rejecting taxpayer attempts to stretch the statute beyond its intended scope. Thermal escaped penalties only because it convinced the court it had acted with reasonable cause, but the income inclusion stands—a stark reminder that the Tax Court will not defer to taxpayers when the facts point to taxable income.

The Heat-Not-Burn Deal: How Thermal Circuits Bet Big on NVT

Thermal Circuits, a Salem, Massachusetts-based manufacturer of foil heating components, found itself at the center of a high-stakes gamble in 2016 when British American Tobacco (BAT) sought to enter the burgeoning "heat-not-burn" tobacco market. BAT’s subsidiary, Next Vapor Technologies (NVT), was developing the "GLO" device—a battery-powered electronic cigarette that heated tobacco instead of burning it. The critical component of this device was the heating element, which NVT turned to Thermal to design and produce.

Thermal had been a steady supplier to NVT since 2016, churning out approximately 10,000 foil heaters per week at a cost of $10 per unit. But NVT’s ambitions were far larger. The company needed nearly 20 times that output to gain market share in an industry projected to be worth $5 billion. Thermal’s existing facility, however, was already running at full capacity. Expanding production through overtime shifts was possible, but it came at a steep price: labor costs would spike by $1.81 per unit, pushing the per-unit cost to $11.81. That was unacceptable to NVT, which demanded the same $10 per-unit price regardless of volume.

Thermal’s leadership, led by CEO Anthony Klein, recognized the opportunity but also the risk. As a small manufacturer, Thermal couldn’t afford to overcommit to NVT’s fluctuating demand. If NVT’s interest waned after the expansion, Thermal would be left with underutilized space and machinery—an unsustainable burden. Klein pushed back, insisting on safeguards. NVT initially proposed a damages clause that would penalize Thermal if it failed to meet production targets, but the company refused to accept such terms. The negotiations stalled.

NVT eventually relented, agreeing to fund the expansion itself. In return, it secured Thermal’s commitment to prioritize NVT’s orders in the expanded facility. The deal was struck in June 2017, with NVT issuing a purchase order labeled “Pre-payment for heater capacity 2018.” The agreement called for a 33,000-square-foot expansion of Thermal’s leasehold facility in Salem, capable of producing 15 million foil heaters annually. The total cost was projected at $4 million, with NVT covering the bulk of the expense. KAK Realty Trust, the lessor of Thermal’s facility, also contributed nearly $2 million to upgrade the wastewater treatment system to support the increased production.

Construction began in July 2017, with Connolly Brothers, Inc. handling the build-out. As the facility took shape, Thermal installed new manufacturing lines incrementally, charging NVT on a cost-plus basis for the tools and machinery. By November 2017, the city of Salem issued a certificate of occupancy, and Thermal began operating in the expanded space. The new facility included a 20,000-square-foot manufacturing area with an etching room and dark room, along with an additional 10,000 square feet of office space.

Thermal bore all the risks associated with the leasehold addition, paying insurance and property taxes for the entire premises. It also retained full control over the facility’s use, despite NVT’s significant financial stake. The relationship between the two companies remained formalized only by a non-binding "Heads of Terms Agreement" signed in May 2018, which defined equipment funded by NVT as "Dedicated Equipment" with ownership retained by NVT—but notably, it did not address the leasehold addition itself. The lack of a formal agreement on ownership of the expansion would later become a central issue in the tax dispute.

The Ownership Dispute: Who Really Owned the $4.3M Leasehold Addition?

The dispute over the leasehold addition’s ownership hinged on competing narratives of control, risk, and legal title—each side marshaling evidence to sway the court toward its interpretation of who truly bore the economic burdens and benefits of the $4.3 million expansion. Thermal Circuits argued that NVT, its joint venture partner, retained equitable ownership of the leasehold addition despite the absence of a formal agreement. Thermal pointed to the 2018 "Heads of Terms Agreement," which designated equipment funded by NVT as "Dedicated Equipment" with ownership retained by NVT, as evidence of NVT’s intent to maintain control over the facility’s enhancements. Thermal further claimed it acted as an accommodation to NVT, holding legal title while NVT held an equitable interest in the addition. The company emphasized that no concrete evidence—such as a written agreement or NVT’s exercise of dominion—proved NVT’s ownership of the leasehold addition itself.

The IRS, however, countered with a starkly different portrayal of ownership, one rooted in the practical realities of possession, financial responsibility, and regulatory compliance. The agency argued that Thermal bore the risks and benefits of ownership, citing its payment of insurance and property taxes for the entire facility, including the addition, as well as its possession of the certificate of occupancy in its name. The IRS invoked the Grodt & McKay Realty framework, which outlines indicia of ownership for tax purposes, to assert that Thermal’s dominion over the addition—evidenced by its control over the facility’s use and compliance with local regulations—demonstrated its status as the true owner. The lack of a formal agreement addressing the leasehold addition, the IRS contended, did not alter the economic substance of the transaction: Thermal had assumed the burdens of ownership, while NVT’s financial stake did not translate into legal or equitable title. The agency framed the dispute as a classic case of form versus substance, where the absence of a written agreement could not override the tangible indicators of ownership.

Section 118 Showdown: Capital Contribution or Taxable Income?

The court’s analysis hinged on whether NVT’s $4.3 million payment to Thermal qualified as a contribution to capital under Section 118(a)—a provision that excludes from gross income any contribution to a corporation’s capital if it meets specific criteria. But the IRS argued that the payment fell squarely within Section 118(b)’s exceptions, which explicitly carve out customer contributions and aid of construction from capital contribution treatment. The stakes were high: If the court sided with Thermal, the $4.3 million could escape taxation entirely. If it sided with the IRS, Thermal would owe tax on the full amount, plus potential penalties.

To resolve the dispute, the court applied the CB&Q five-part test, a judicial framework established in Chicago, Burlington & Quincy Railroad Co. v. United States (1965) to determine whether a transfer qualifies as a capital contribution. The test examines whether the contribution (1) becomes part of the transferee’s permanent working capital structure, (2) is not compensation for services, (3) is bargained for, (4) foreseeably benefits the transferee commensurate with its value, and (5) is employed to produce additional income. The parties agreed on factors three through five, leaving only the first two—permanent working capital and lack of compensation—to decide the case.

The court first addressed whether the $4.3 million became part of Thermal’s permanent working capital structure. Under Section 118(a), a contribution qualifies as capital only if it is permanent, meaning it is not a temporary loan or advance but rather an infusion that enhances the corporation’s long-term operations. The court pointed to Texas & Pacific Railway Co. v. United States (1932), which held that funds committed to a corporation’s capital structure—such as those used to acquire capital assets—are permanent contributions. Here, NVT’s payment funded a leasehold addition on Thermal’s manufacturing facility, a capital asset integral to its operations. The court concluded that the funds were permanently embedded in Thermal’s working capital, satisfying the first prong of the CB&Q test.

The second prong—whether the payment was compensation for services—proved decisive. Under Treasury Regulation § 1.118-1, money transferred to a corporation in exchange for goods or services is not excludable from gross income. The court zeroed in on NVT’s motivation: In late 2016, NVT faced a critical bottleneck. Thermal’s existing facilities could not meet NVT’s growing demand for foil heaters without incurring prohibitive overtime costs. NVT’s internal analysis showed that expanding Thermal’s leasehold—at a cost of $4.3 million—would allow it to produce heaters at a lower per-unit cost. The company explicitly framed the payment as a “Pre-payment for heater capacity 2018,” and its contract negotiations included a damages clause if Thermal failed to meet production targets. These actions, the court found, demonstrated that NVT’s goal was to secure future production volume at a lower price, not to make a capital investment. The funds were, in essence, advance payment for services—future heater production—rendering them taxable income under Section 118(b)’s exception for customer contributions.

The court’s conclusion was further reinforced by Section 118(b)(1), which explicitly excepts from capital contribution treatment any payment made by a customer or potential customer in aid of construction. The parties did not dispute that NVT was a customer of Thermal at the time of the payment or that the funds were used to construct the leasehold addition. Thus, even if NVT had intended the payment as a capital contribution—which the court found it did not—the funds were still taxable under Section 118(b)(1)’s plain language. The court held that the payment was not excludable under Section 118(a) because it was compensation for services and fell within Section 118(b)’s exceptions.

Timing is Everything: When Did Thermal Earn the $4.3M?

The court’s timing analysis hinged on the accrual method’s "all events test"—a threshold that determines when income is fixed and determinable under Treas. Reg. § 1.451-1(a). For accrual-basis taxpayers like Thermal, income is recognized when all events have occurred that establish the right to receive it and the amount can be determined with reasonable accuracy. The test is met at the earliest of three milestones: payment receipt, payment due date, or performance completion.

Thermal argued the $4.3M should be deferred until the leasehold addition was fully constructed in late 2018, when NVT’s obligation to pay was fully satisfied. The IRS countered that the funds were constructively received in 2017, when NVT paid $4.085M, and again in 2018, when the remaining $204,529 was remitted. The court sided with the IRS, finding that the all events test was satisfied in stages.

For the 2017 payment, the court ruled that incremental production—the phased activation of manufacturing lines as the leasehold addition progressed—triggered income inclusion. Even though the project wasn’t complete, Thermal’s right to the funds was fixed once NVT paid, and the amount was determinable. The $4.085M was thus includible in 2017. The remaining $204,529, paid in 2018 after final performance, followed the same logic: no prior-year obligation existed, and the payment was tied to completion, making 2018 the correct inclusion year.

The ruling underscores the Tax Court’s willingness to parse operational realities over rigid formalities. By focusing on when Thermal economically earned the income—not just when NVT’s contractual obligation ended—the court reinforced that accrual accounting demands pragmatic timing, not theoretical perfection.

Penalty Escape: Thermal's Reasonable Cause Lifeline

The IRS had one last arrow in its quiver: a 20% accuracy-related penalty under Section 6662(a), which applies when a taxpayer’s underpayment of tax is due to negligence, disregard of rules, or substantial understatement of income. Section 6662(c) defines negligence broadly—encompassing any failure to make a reasonable attempt to comply with the tax law—and Section 6664(c)(1) provides a critical escape hatch: no penalty if the taxpayer shows reasonable cause and good faith in their position. The burden fell on Thermal to prove its entitlement to this defense, a hurdle the Tax Court cleared with a detailed factual analysis that underscored the company’s honest, though mistaken, belief in NVT’s ownership of the leasehold addition.

Thermal’s mistake was not one of carelessness but of misplaced trust in the contractual framework it had negotiated with NVT. The company had consistently treated the leasehold addition as NVT’s property, relying on draft agreements that explicitly stated NVT retained ownership of “facilities” funded by NVT, including the leasehold addition. Even after the signed HoT Agreement omitted the same ownership language, NVT’s control over the Dedicated Equipment—equipment that Thermal used exclusively to manufacture NVT’s foil heaters—reinforced the perception of ownership. Thermal’s actions further reflected this belief: it sought NVT’s permission to use the leasehold addition, refrained from claiming depreciation deductions on the NVT-funded portion, and even complied with NVT’s instruction to destroy Dedicated Equipment when NVT’s orders changed. The court found this pattern of conduct to be an honest misunderstanding of fact, one that was reasonable in light of all the circumstances.

The Tax Court’s analysis hinged on the ordinary business care and prudence standard under Treas. Reg. § 1.6664-4(b)(1), which requires a taxpayer to demonstrate that it made a good-faith effort to assess its proper tax liability. Thermal’s efforts were not flawless, but they were thorough. The company relied on the draft agreements, NVT’s control over the equipment, and its own consistent treatment of the leasehold addition as NVT’s property—all factors the court deemed sufficient to meet the reasonable cause standard. The ruling reaffirms that good faith, not perfection, is the touchstone for escaping penalties, particularly when a taxpayer’s position is rooted in a plausible, if ultimately incorrect, interpretation of the facts.

The Aftermath: What This Ruling Means for Taxpayers

Thermal Circuits’ case serves as a cautionary tale for manufacturers and businesses that rely on customer-funded improvements to expand operations. The Tax Court’s decision reaffirms that informal agreements—even those backed by draft contracts and industry norms—carry significant tax risk when ownership of the improvements is disputed. Taxpayers in similar positions must treat customer-funded additions as taxable income unless they can prove the funds qualify as a permanent capital contribution under § 118(a), a standard that remains narrowly interpreted.

For manufacturers receiving payments to install equipment or expand facilities, the ruling underscores the importance of documenting intent upfront. The IRS and courts will not defer to industry practices or draft agreements; instead, they demand clear evidence that the funds were intended as a capital infusion rather than compensation for services. This means businesses should formalize agreements in writing, explicitly stating that customer payments are contributions to capital—not payments for goods or services—and that the improvements will remain with the taxpayer permanently.

The case also highlights the limited scope of § 118(a) for customer contributions. Even when payments are used to fund long-term assets, the IRS will scrutinize whether the transaction lacks a quid pro quo. Taxpayers cannot assume that because funds are used for capital improvements, they automatically qualify for exclusion. Instead, they must demonstrate that the customer received no direct benefit in exchange for the payment, a standard that proved fatal in Detroit Edison Co. v. Commissioner.

For practitioners advising clients in similar situations, the ruling offers a practical lifeline: reasonable cause defenses remain viable even when a taxpayer’s position is ultimately rejected. The Tax Court’s emphasis on good faith—rather than perfection—means that businesses with plausible, well-documented interpretations of the facts may still avoid penalties, even if they owe additional tax. This underscores the need for thorough contemporaneous documentation, including draft agreements, internal memos, and consistent treatment of the funds on financial statements.

The broader takeaway is clear: in the absence of ironclad documentation proving a capital contribution, customer-funded improvements will be treated as taxable income. Taxpayers must either restructure these transactions to meet § 118(a)’s stringent requirements or prepare for income inclusion—and potential penalties if the position lacks reasonable cause.