Imagine your biggest customer offers to pay for a $4 million expansion of your factory so you can make more of what they buy, faster and cheaper. It sounds like a gift — free money to grow your business. The Tax Court just ruled that it isn't. In Thermal Circuits, Inc. v. Commissioner, a small manufacturer learned the hard way that "customer-funded growth" and "tax-free growth" are two very different things.
If your business has ever taken money from a customer, supplier, landlord, or partner to build out capacity, this case is a warning label. Here's what happened, why the court ruled the way it did, and how to avoid a surprise seven-figure tax bill if a similar deal lands on your desk.
The Deal That Looked Like a Gift
Thermal Circuits makes foil heating components — the kind used in specialized manufacturing equipment. One of its customers, Nicoventures Trading Limited (a subsidiary of British American Tobacco), needed a lot more of Thermal's product. To get there, Nicoventures wanted Thermal to roughly 20x its production capacity while holding the per-unit price steady at around $10.
There was one problem: Thermal's leased facility wasn't big enough. So Nicoventures agreed to pay for the buildout directly — $4.085 million in 2017 and another $204,529 in 2018, for a total of roughly $4.3 million.
Thermal used the money to expand its leased space, but the deal had a specific structure:
- Thermal held the certificate of occupancy for the expanded facility in its own name
- Thermal paid the property insurance and property taxes on the entire building, including the new addition
- Thermal bore the operating risk of the expanded facility
- The purchase order documenting the payment was captioned "Pre-payment for heater capacity 2018"
Thermal's position: this was a non-shareholder contribution to capital, excludable from taxable income under Internal Revenue Code Section 118(a). The company even disclosed its position to the IRS on a Form 8275, leaning on a decades-old Supreme Court test (from a 1973 railroad case) that looks at whether a payment becomes a permanent part of the recipient's working capital, is bargained for, and benefits the business generally rather than one specific transaction.
The IRS disagreed and issued a Notice of Deficiency for roughly $1.28 million (2017) and $43,000 (2018) in unreported income, plus accuracy-related penalties.
Why the Tax Court Sided With the IRS
The Tax Court's reasoning boiled down to two independent lines of attack — either one would have been enough to sink Thermal's position.
1. Thermal had complete ownership and dominion over the money.
The court looked past the "contribution" label and asked who actually controlled the asset. Thermal — not Nicoventures — paid the insurance, paid the property taxes, bore the risk, and held the occupancy certificate. That's the classic fact pattern for taxable "accessions to wealth" under the Supreme Court's long-standing Glenshaw Glass standard: if you have undeniable control over money with no obligation to repay it, it's income, no matter what you call it.
2. The payment was compensation for a service, not a gift.
Even setting aside the ownership question, the court pointed to the purchase order language itself: "Pre-payment for heater capacity." Nicoventures wasn't donating to Thermal's growth out of goodwill — it was buying something specific: guaranteed future production volume at a locked-in low price. Treasury regulations under Section 118 are explicit that money paid "in consideration for goods or services rendered" doesn't qualify as an excludable capital contribution, no matter how the contract characterizes it.
3. The statute forecloses this exact scenario anyway.
This is the part every business owner should underline. Since the Tax Cuts and Jobs Act of 2017, Section 118(b) has explicitly stated that a "contribution to capital" does not include:
- Any contribution "in aid of construction," or
- Any other contribution made by a customer or potential customer
Thermal's payment was both. Even if the company had won the "was this really compensation" argument, the statute independently killed the exclusion. Post-2017, customer money used to build out a supplier's facility is essentially always taxable — the old gift-like treatment for these arrangements is gone.
The one bright spot: the court did relieve Thermal of the 20% accuracy-related penalty for 2017, finding the company had reasonable cause. Contract language stating that title to certain "Dedicated Equipment" remained with Nicoventures, plus Thermal's consistent restriction of the facility to Nicoventures' work, was enough to show a good-faith (if ultimately incorrect) position — not a shortcut around the underlying tax bill.
What This Means If a Customer Offers to Fund Your Growth
This fact pattern isn't exotic. It shows up whenever a business:
- Takes upfront payment from a customer to build out capacity dedicated to that customer
- Accepts a landlord's tenant-improvement allowance structured as a "contribution" rather than reimbursed rent
- Gets a supplier or distributor to fund equipment in exchange for exclusivity or preferred pricing
- Signs a "take-or-pay" or capacity-reservation deal with money up front
The lesson from Thermal Circuits is that the IRS and the courts will look at substance, not labels:
- Who actually owns and controls the asset? If your business pays the insurance, taxes, and bears the risk, you own it — and money used to fund it is very likely your income, not a tax-free gift.
- What is the money actually buying? If a payment is tied to future volume, pricing, capacity, or any deliverable, it's compensation. Calling it a "contribution" in the contract doesn't change the tax result.
- Is a customer involved at all? Since 2017, Section 118(b) makes customer-funded construction taxable as a matter of law in almost all cases — there's no clever drafting around it.
None of this means customer-funded expansion is a bad deal. Thermal still got a larger, more productive facility, and the flip side of recognizing the income is that it also gets to depreciate the resulting building improvements — including, potentially, 100% first-year bonus depreciation on qualifying property under current law. The real risk isn't the tax itself; it's being surprised by it. A $4.3 million unreported income adjustment, plus interest, is a solvency event for a company that size if it isn't planned for.
The Real Failure Point: Recognizing the Deal Before the Audit Does
Thermal's mistake wasn't necessarily aggressive tax planning — the Form 8275 disclosure shows they knew this was a debatable position and tried to be transparent about it. The deeper failure is structural: by the time a deal like this reaches your tax preparer as a lump-sum deposit, the characterization has often already been locked in by how the contract was written and how the money was received. Getting this right requires the accounting to be built into the deal from day one, not reconstructed after the fact.
That means tracking, at the moment funds are received:
- Who wrote the check, and what the supporting contract or purchase order actually says the money is for
- Which entity's name is on the property, insurance policy, and certificate of occupancy
- Whether the payment is tied to any future deliverable, price, or volume commitment
- Whether the funds are commingled with general operating cash or held distinctly
Trying to reconstruct that six months later — from a bank deposit that just says "wire transfer" — is exactly how businesses end up with a Form 8275 disclosure and a court fight instead of clean books from day one. This is where plain-text, version-controlled bookkeeping earns its keep: every transaction can be tagged with metadata (the source contract, the intended use of funds, the offsetting liability or income account) right at the moment it's recorded, and that history is auditable and diffable forever after — not buried in a spreadsheet someone overwrote in March.
Keep Complex Transactions Traceable From Day One
Deals like customer-funded facility expansions live at the intersection of contract terms and tax law, and the accounting decisions you make when the money hits your books can matter as much as the underlying agreement. Beancount.io gives you plain-text, version-controlled accounting where every unusual transaction — a customer prepayment, a capital contribution, a tenant improvement allowance — is documented, tagged, and traceable, so you and your tax advisor can reconstruct the full story instead of guessing at intent after an audit letter arrives. Get started for free and see why businesses handling complex transactions are switching to plain-text accounting.