Selling a C Corporation With Appreciated Assets Can Trigger Catastrophic Tax Liability
Federal Circuit Warns Taxpayers About Selling Appreciated Assets Inside a C Corporation
A recent decision from the United States Court of Appeals for the Federal Circuit serves as a major warning to taxpayers considering the sale of appreciated assets held inside a C corporation. In Dillon Trust Company LLC v. United States, the court upheld approximately $80 million of transferee liability against trusts that sold stock of corporations holding highly appreciated farmland and investment assets. The ruling demonstrates how dangerous it can be to pursue a stock sale structure designed to avoid the double taxation normally associated with C corporations when the transaction involves aggressive intermediary buyers or unrealistic economics.
The case involved trusts that owned two C corporations with approximately $93 million of assets but only about $17 million of tax basis. The corporations contained more than $76 million of built in gain. The taxpayers understood that a direct asset sale would create two layers of tax: one at the corporate level and another at the shareholder level upon liquidation. As a result, the trusts pursued a stock sale instead.
Why the Transaction Attracted IRS Attention
The corporations sold farmland through installment notes and then auctioned the stock of the corporations to potential buyers. The winning bidder agreed to pay approximately 95% of the value of the underlying assets without meaningfully discounting for the enormous embedded tax liability. The buyer was a newly formed entity financed almost entirely with borrowed funds secured by the target corporation’s own assets.
Immediately after the stock sale closed, the buyer sold off investment assets and later used abusive Son of BOSS transactions to generate artificial tax losses. Those fabricated losses offset the gain from the asset sales, resulting in no federal income tax being paid. The IRS later disallowed the losses and assessed more than $25 million of tax, $10 million of penalties, and substantial interest.
Because the purchasing entity ultimately could not pay the liability, the IRS pursued the original sellers as transferees under IRC Section 6901. The government argued that the transaction should be “collapsed” and treated economically as if the original corporations themselves had sold the assets directly.
The Court’s Key Finding: Willful Blindness
The Federal Circuit affirmed the lower court and held that the trusts had constructive knowledge of the fraudulent scheme. The court repeatedly emphasized that sophisticated taxpayers cannot ignore obvious warning signs simply because they do not want to know the details of the buyer’s tax strategy.
Several facts were particularly damaging:
- The sellers knew the corporations contained approximately $26 million of built in tax liability.
- The bids received were economically irrational because they did not properly discount for that tax liability.
- The purchasing entity was newly formed and thinly capitalized.
- The purchase was financed almost entirely with debt secured by the corporation’s own assets.
- The sellers’ attorneys had specifically warned them about IRS scrutiny involving intermediary tax shelter structures.
- The buyer resisted contractual restrictions on quickly disposing of assets.
The court concluded that these facts imposed a duty to investigate further. Instead, the taxpayers accepted explanations that the buyer’s plans were “proprietary” and proceeded with the transaction. The court characterized this as willful ignorance rather than good faith reliance.
Why This Case Matters for Business Owners
This case is one of the clearest modern examples of the danger of holding highly appreciated assets inside a C corporation. Many closely held businesses and investment corporations contain low basis real estate, securities, or goodwill that can trigger massive built in gain upon sale.
Taxpayers often attempt to avoid double taxation by pursuing stock sales rather than asset sales. In legitimate transactions, that planning may be appropriate. However, this case shows that when a buyer appears willing to ignore embedded tax liabilities without a rational economic explanation, the IRS and courts may recharacterize the transaction and impose liability back on the original sellers.
Importantly, the court did not require proof that the trusts knew every detail of the abusive tax shelter. Constructive knowledge and failure to investigate suspicious facts were enough. That standard creates significant risk for sophisticated sellers and their advisors.
Key Tax Impacts
- IRC Section 6901 allows the IRS to pursue transferee liability against sellers in certain stock sale transactions.
- Courts may collapse a stock sale and subsequent asset sale into one integrated transaction.
- Constructive knowledge and willful blindness can create liability even without direct participation in a tax shelter.
- Thinly capitalized buyers and unrealistic purchase prices are major audit and litigation risk factors.
- Federal courts may impose liability for unpaid tax, penalties, and interest that exceed tens of millions of dollars.
- Highly appreciated assets inside C corporations remain one of the most dangerous structures from an exit planning perspective.
Final Takeaway
The Dillon Trust decision is a reminder that tax planning involving appreciated assets inside C corporations requires careful structuring, legitimate economic substance, and substantial due diligence. Transactions that appear too favorable economically may expose sellers to years of litigation and transferee liability long after the sale closes. When dealing with low basis assets and large built in gains, taxpayers must carefully evaluate not only the tax consequences of the transaction itself, but also the credibility and financial substance of the buyer.
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Dillon Trust Company LLC v. United States
United States Court of Appeals for the Federal Circuit
No. 2024-1314
Decided May 14, 2026
