Article

Underwater property in corporate wind-ups: Tax considerations

Assumed debt, extinguished debt and the limits of section 336(b)

August 11, 2026
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Federal tax Income & franchise tax M&A tax services

Executive summary : Tax characterization of corporate wind-ups based on the economics and impact to the debt

Corporate wind-ups involving debt-encumbered property can produce materially different tax results depending on whether the relevant liability continues or is extinguished. This article examines that distinction in the context of underwater property, contrasting a conventional section 336(b) liquidation involving third-party debt that is assumed or taken subject to with an insolvent wind-up in which property is transferred to a shareholder-creditor in satisfaction and extinguishment of debt.

The article argues that section 336(b) operates most naturally where a liability survives the liquidation distribution, while transfers to creditors in satisfaction of debt are generally better analyzed under section 1001, Reg. section 1.1001-2 and the cancellation-of-indebtedness rules. It also addresses the shareholder-creditor consequences of debt extinguishment, including the potential application of section 1271, capital loss characterization, fair-market-value basis in property received and the limited role of section 166 business bad debt treatment.

The article concludes by emphasizing that corporate amount realized, shareholder property basis and debt issue price are separate determinations that should not be collapsed merely because the property is underwater.


Introduction

Corporate wind-ups involving leveraged businesses often turn on a threshold characterization question: does the liability continue, or is the debt extinguished?

Section 336 generally governs corporate gain or loss on property distributed in complete liquidation. Section 336(a) treats the liquidating corporation as selling distributed property to the distributee at fair market value (FMV). Section 336(b), however, provides a liability floor rule: if distributed property is subject to a liability, or if the shareholder assumes a liability of the corporation in connection with the distribution, the property’s FMV is treated as not less than the amount of the liability for purposes of section 336(a) and section 337.

That rule fits most naturally where the debt survives the distribution—for example, where debt is owed to a third-party lender and the shareholder assumes the debt or takes the property subject to it. A different analysis may apply where the shareholder is also the creditor, and the liquidation extinguishes the debt. In that case, the shareholder-creditor may not be assuming a continuing liability in the same sense; the debt may instead be satisfied, retired, canceled or merged out of existence.

The distinction matters because three tax amounts that may appear connected are not necessarily the same: the corporation’s amount realized or deemed sale price, the shareholder’s basis in the distributed property and the issue price or adjusted issue price of any assumed or modified debt instrument.

Core example

Assume Corporation X owns and operates a business with the following attributes:

  • Debt secured by or associated with the business: $1 billion
  • Adjusted tax basis: $400 million
  • FMV: $600 million

Depending on the applicable framework, X may recognize either $600 million of gain, if the full $1 billion debt amount is treated as the operative deemed sale price or amount realized; or $200 million of gain, plus potential cancellation-of-indebtedness (COD) income, if the sale component is measured by the asset’s $600 million FMV.

The difference arises not only because the property is underwater, but also because federal tax law distinguishes among assumption, taking property subject to debt, satisfaction and extinguishment.

Section 336 and third-party debt that survives the liquidation

The straightforward section 336(b) case involves third-party debt. Assume X distributes the asset to its shareholder in complete liquidation, and the $1 billion debt is owed to an unrelated lender. If the shareholder assumes the debt or takes the property subject to the debt, the debt continues after the distribution. The creditor remains separate from the shareholder, and the liability continues to burden the property or the transferee.

In that setting, section 336(b) directly addresses the corporate result. The property is distributed in liquidation, and either the property remains subject to a liability, or the shareholder assumes a liability in connection with the distribution. The property’s FMV is therefore treated as not less than the liability amount.

Corporate result:

  • Deemed value under section 336(b): $1 billion
  • Adjusted basis: $400 million
  • Corporate gain: $600 million

The operative feature is that the liability survives. The shareholder has assumed, or taken property subject to, an enforceable debt owed to another person.

Shareholder-creditor debt: Extinguishment is not assumption

The analysis changes when the creditor is also the shareholder. Assume the same facts, except X owes the $1 billion debt to its sole shareholder. If X transfers the asset to the shareholder-creditor and the debt is extinguished as part of the liquidation, the transaction is not economically or legally identical to a third-party debt assumption.

A true assumption generally involves three distinct positions: the corporation as debtor, the shareholder as transferee and the third-party creditor. After the transfer, the third-party creditor still has an enforceable claim, and the debt continues.

By contrast, where the shareholder is also the creditor, the transfer may eliminate the debt. If the shareholder-creditor and corporate debtor positions become held by the same taxpayer, the better description may be debt extinguishment, not assumption of a continuing obligation.

That distinction determines whether section 336(b), section 1001, the COD rules or section 1271 is doing the relevant work, as analyzed below.

Insolvent wind-ups: Creditor transfer, not shareholder distribution

This distinction is clearest when the corporation is insolvent. If all remaining value is transferred to creditors, the property is not being distributed to shareholders in respect of stock. Rather, the shareholder-creditor’s equity is out of the money, and so the transfer is instead made to satisfy the creditor claims on the debt.

In that case, the transfer is better analyzed outside section 336. The corporation should generally analyze the creditor transfer under section 1001, Reg. section 1.1001-2 and the COD income rules. Reg. section 1.1001-2 includes liabilities from which the transferor is discharged in amount realized but contains a separate rule for recourse liabilities and COD income.

Note that a creditor recovery or forced transfer of property is not automatically a corporate liquidating distribution merely because it occurs in a wind-up. In Helvering v. Hammel, 311 U.S. 504 (1941), the Supreme Court treated a foreclosure sale as a sale for capital loss purposes and rejected a distinction between forced and voluntary sales.

Recourse debt

If the $1 billion debt is recourse (i.e., secured by all the properties of the business) and X transfers the $600 million asset to the creditor in satisfaction of the debt, the transaction is generally bifurcated into:

  • a sale or exchange component measured by the property’s value; and
  • a COD component for the excess debt discharged.

Corporate result:

  • Amount realized / sale component: $600 million
  • Adjusted basis: $400 million
  • Corporate gain: $200 million
  • Potential COD income: $400 million

Reg. section 1.1001-2 supports that bifurcation because the amount realized on a disposition of property securing recourse debt does not include amounts that are, or would be, COD income.

Section 108 may exclude COD income if the corporation is insolvent or in bankruptcy, but excluded COD generally carries attribute-reduction consequences. If the business operates as a partnership for federal income tax purposes, the insolvency and bankruptcy exclusions generally do not apply at the partnership level; that partnership-specific analysis is outside the scope of this article.

Nonrecourse debt

If the debt is nonrecourse, the corporation’s result generally differs. Crane v. Commissioner, 331 U.S. 1 (1947), laid the foundation by including nonrecourse mortgage debt in the amount realized when property was sold subject to the mortgage.

Commissioner v. Tufts, 461 U.S. 300 (1983) (later codified in section 7701(g)), extended that principle to underwater property, holding that when property subject to nonrecourse debt exceeding FMV is disposed of, the full outstanding amount of the nonrecourse obligation may be included in amount realized, and the property’s FMV is not controlling.

Corporate result:

  • Amount realized: $1 billion
  • Adjusted basis: $400 million
  • Corporate gain: $600 million
  • Generally, no separate COD income from the same nonrecourse debt discharge

This result arises from section 1001 and the nonrecourse debt authorities, not from section 336(b). For corporate taxpayers that are allowed to exclude COD income under insolvency or bankruptcy, gain recognition is often not the desired result.

Shareholder-creditor treatment: Section 1271, character and basis

The shareholder-creditor’s treatment should be analyzed separately. Assume the debt is bona fide debt and is not a “security” described in section 165(g). Section 166 does not apply to a debt evidenced by a security described in section 165(g)(2)(C), but this discussion assumes that limitation is not implicated.

Where the shareholder-creditor receives property and the debt is extinguished in the liquidation, the clearer characterization is that the debt instrument has been retired or exchanged. Section 1271(a)(1) provides that amounts received by the holder on retirement of a debt instrument are treated as amounts received in exchange for the debt instrument.

That rule may convert what looks economically like a bad debt shortfall into exchange treatment. Historically, the Supreme Court in Fairbanks v. United States, 306 U.S. 436 (1939), held that bond redemption was not a sale or exchange under prior law, but the Court also recognized that Congress changed the rule by providing that amounts received on retirement of certain debt instruments are treated as received in an exchange. Section 1271 now performs that function.

Thus, if the shareholder-creditor has a $1 billion basis in the debt and receives property worth $600 million in full extinguishment of the debt, the shareholder-creditor generally has a $400 million loss on the retirement or exchange of the debt instrument. If the debt instrument is a capital asset in the shareholder-creditor’s hands, that loss generally is expected to be capital.

The shareholder-creditor generally takes a FMV basis in the property received. Recourse status may affect the corporation’s amount realized and COD analysis, but it does not cause the shareholder-creditor to take a basis equal to the face amount of the extinguished debt. Reg. section 1.166-6(c), in the creditor-acquisition context, provides that the creditor’s basis in property acquired from the debtor is the property’s FMV at the date of acquisition.

Using the core example, the shareholder-creditor generally has:

  • Basis in property received: $600 million
  • Loss on retirement or exchange of debt: $400 million

This conclusion is generally the same whether the debt is recourse or nonrecourse, assuming the liquidation fully extinguishes the debt. Recourse status is central to the corporation’s section 1001/COD analysis. On the shareholder-creditor side, if the debt instrument is extinguished in exchange for property, section 1271 generally governs the loss, with the property basis equal to its FMV.

Section 166 should not be layered onto the same extinguished debt. It may remain relevant in a different fact pattern—for example, if a separate enforceable deficiency claim remains after the property transfer and later becomes worthless. Reg. section 1.166-6 addresses situations involving mortgaged or pledged property sold for less than the debt and a remaining indebtedness that is wholly or partially uncollectible. Where the liquidation itself extinguishes the debt and leaves no continuing claim, however, the cleaner analysis is that exchange treatment under section 1271 is what governs tax treatment.

Shareholder basis in a true section 336(b) liquidation

A true section 336(b) liquidation may produce asymmetry. As discussed above, section 336(b) can cause the liquidating corporation to recognize gain by treating the property’s FMV as not less than the amount of the liability if the property is distributed subject to a liability or the shareholder assumes a liability.

However, that corporate-side liability floor does not appear to determine the shareholder’s basis in the property.

In a taxable complete liquidation, section 334(a) generally gives the distributee a basis equal to the property’s FMV at the time of distribution.

Thus, in the core example, the corporation may recognize $600 million of gain under section 336(b), while the shareholder takes a $600 million basis in the property, not a $1 billion basis.

The same FMV basis result is directionally consistent with the shareholder-creditor acquisition context discussed above. Whether the shareholder receives the property as creditor in exchange for extinguished debt or as shareholder in a taxable liquidation, the relevant basis rule generally points to FMV, not the face amount of the debt.

Issue price of assumed third-party debt

A separate point arises when a shareholder assumes third-party debt in a section 336(b) liquidation. The shareholder’s FMV basis in the distributed property should not be conflated with the issue price or adjusted issue price of the assumed debt.

Section 334(a) generally determines the shareholder’s basis in property received in a taxable complete liquidation by reference to the property’s FMV. Section 336(b), by contrast, operates as a corporate-level liability-floor rule for purposes of section 336(a) and section 337. Neither provision determines the issue price of third-party debt assumed by the shareholder.

Accordingly, if a shareholder assumes $1 billion of third-party debt secured by property with a $600 million FMV, the shareholder’s $600 million basis in the property does not, by itself, cause the debt’s issue price to become $600 million. If the assumption or related changes are treated as a significant modification, the issue price of the modified or new debt instrument remains a separate determination under the debt instrument rules, including sections 1273 and 1274 and the applicable regulations.

Nor should the shareholder’s later satisfaction of the full $1 billion assumed debt be treated as automatically creating an additional $400 million basis in the property or a separate loss or deduction merely because the property’s FMV was only $600 million. In the third-party debt case, the shareholder has taken on and then paid its own obligation to the lender. Any tax consequence from paying the excess debt amount is analyzed under the rules governing the shareholder’s liability and debt instrument, not as an adjustment to the section 334(a) FMV basis of the property. If a loss is recognized because the shareholder economically bears a $400 million shortfall, the character question is analyzed separately and may be capital rather than ordinary depending on whether the relevant debt position or related transaction is a capital asset or otherwise receives exchange treatment.

A shareholder seeking capital-loss treatment might argue that the origin of the later payment lies in the liquidation transaction itself: the shareholder assumed the debt to receive the property in the liquidation, and the later satisfaction of the excess $400 million relates back to that capital or liquidation transaction. On that view, Arrowsmith-type principles and origin-of-the-claim analysis could support capital character if the payment otherwise gives rise to a recognizable loss. The answer is not clear, however. Those doctrines generally help determine character; they do not themselves create a deduction or resolve whether payment of the shareholder’s own assumed obligation produces a separate loss rather than a nondeductible cost of the transaction or is part of the overall economics of taking the property subject to underwater debt.

This point reinforces the broader theme: The corporation’s section 336(b) gain, the shareholder’s basis in the distributed property and the issue price of any assumed or modified debt instrument are separate determinations.

The Whipple and Generes cautions

Section 1271 is important because it may prevent the shareholder-creditor from reaching section 166 at all. Even if section 166 were relevant, business bad debt treatment is not a given.

For noncorporate taxpayers, section 166 distinguishes business bad debts from nonbusiness bad debts. A nonbusiness bad debt is not deductible under section 166(a). Instead, if it becomes worthless, the resulting loss is treated as a short-term capital loss.

Whipple v. Commissioner, 373 U.S. 193 (1963), is the principal shareholder-creditor caution. The Supreme Court rejected the proposition that a shareholder’s activities in organizing, managing, promoting or financing corporations are, without more, a separate trade or business merely because the shareholder is active in the corporation and expects to profit.

United States v. Generes, 405 U.S. 93 (1972), adds a related motive requirement. The Supreme Court held that, in determining whether a bad debt has a proximate relationship to the taxpayer’s trade or business, the proper standard is dominant motivation, not merely significant motivation. That is important for shareholder-creditors because their motives often include both investment protection and business or employment considerations. Under Generes, business motivation must dominate.

In the liquidation-extinguishment fact pattern, however, the more fundamental issue may arise earlier. If section 1271 governs because the debt is retired in exchange for property, the business bad debt inquiry may never be reached. The issue becomes the character of the debt instrument in the shareholder-creditor’s hands.

Direct comparison

Third-party debt that is assumed or taken subject to

In the third-party debt case, the shareholder receives property burdened by an obligation owed to another person. The debt survives. Section 336(b) applies naturally because the property remains subject to a liability or the shareholder assumes a liability in connection with the distribution.

Using the example, X recognizes $600 million of corporate gain. The shareholder generally takes $600 million FMV basis in the property under section 334(a). The shareholder’s property basis does not, by itself, determine the issue price or adjusted issue price of the assumed third-party debt.

Shareholder-creditor debt that is extinguished

In the shareholder-creditor case, if the shareholder receives property in satisfaction of debt, there may be no continuing liability to assume. If the corporation is insolvent and the shareholder-creditor receives the property as creditor, the transfer is better analyzed as a creditor recovery. The corporation’s treatment should generally be analyzed under section 1001 and the COD rules.

On the shareholder side, section 1271 may produce exchange treatment. If the debt instrument is a capital asset, the shortfall is generally capital loss. The shareholder-creditor generally takes FMV basis in the property received.

Practical framing

In distressed wind-ups, the analysis should proceed in sequence:

  1. Capacity: Was the transfer made to a shareholder in respect of stock or to a creditor in satisfaction of debt?

  2. Debt mechanics: Does the debt survive, or is it satisfied, retired, canceled or merged?

  3. Corporate framework: If property is distributed to a shareholder subject to a continuing liability, section 336(b) may apply. If property is transferred to a creditor in satisfaction of debt, section 1001, Reg. section 1.1001-2 and the COD rules generally should be considered.

  4. Recourse status of debt: Recourse debt may produce bifurcated sale gain and COD income to the corporation. By contrast, nonrecourse debt generally produces amount realized equal to the full debt amount.

  5. Holder-side character: If shareholder-held debt is extinguished in exchange for property, section 1271 may produce exchange treatment and capital loss if the debt instrument is a capital asset.

  6. Property basis and debt issue price: The basis of property received and the issue price of any assumed or modified debt instrument are separate determinations. Section 334(a) and creditor-acquisition principles may point to FMV basis in the property, while sections 1273 and 1274 separately govern debt issue-price questions.

Conclusion

Section 336(b) does not apply to every liquidation-related disappearance of debt. It is most naturally applied where property is distributed to shareholders subject to a continuing liability or where the shareholder assumes a liability in connection with the distribution. That involves scenarios where third-party creditors hold the debt.

The shareholder-creditor extinguishment case is different. If the shareholder-creditor receives property in satisfaction of debt and the debt is extinguished, the shareholder has not assumed a continuing obligation in the same way a transferee assumes third-party debt. The analysis should ask whether the property was transferred in respect of stock, in satisfaction of debt, or partly in each capacity.

In an insolvent wind-up, that distinction should be central. Property transferred to creditors in satisfaction of debt is better analyzed as a creditor recovery, not as a liquidating distribution of that property to shareholders. The relevant corporate-level framework is section 1001, Reg. section 1.1001-2 and the COD rules.

The shareholder-creditor consequences raise a separate character and basis issue. If the debt is extinguished in exchange for property, section 1271 may treat the transaction as a retirement or exchange of the debt instrument. That can produce capital loss if the debt instrument is a capital asset, even where the shareholder might otherwise have sought ordinary business bad debt treatment. The shareholder-creditor should generally take FMV basis in the property received.

The practical lesson is straightforward: Do not analyze underwater property solely by comparing FMV, basis and debt. First, determine whether the debt continues, is assumed or is extinguished. Next, separately analyze the corporate, holder-side and debt-instrument consequences. Those legal mechanics may determine not only the amount of income or loss, but also its character, the basis of the property received and the treatment of any assumed or modified debt.

RSM contributors

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    Partner
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    Eric Brauer
    Senior Manager
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