IRC Section 356: Boot, Gain Recognition, and Basis Rules

Under IRC Section 356, boot in a corporate reorganization is taxed to the shareholder who receives it, but only up to the amount of gain the shareholder actually realized on the exchange. If you swap stock in a merger, acquisition, or corporate separation and receive cash or other non-stock property alongside the qualifying stock, you recognize gain equal to the lesser of your realized gain or the value of the boot. The remaining gain stays deferred inside the basis of the new stock. Character is a separate question: the recognized gain is usually capital gain, but it can be recast as a dividend when the exchange looks economically like a distribution of earnings.

What Counts as Boot

Boot is anything received in the exchange that is not stock of the acquiring or distributing corporation. Cash is the obvious example. Tangible property and short-term notes also qualify. Two categories catch shareholders off guard.

Securities are not automatically tax-free. Under Section 356(d), securities are treated as “other property” except to the extent they would pass through Section 354 or 355 without triggering gain.¹ In practice, two situations create boot from securities. If the principal amount of securities you receive exceeds the principal amount you surrendered, the excess is boot.² And if you receive securities without surrendering any, the entire principal amount is boot.

Nonqualified preferred stock is the second trap. Section 356(e) treats it as boot even though it is technically equity.³ Preferred stock counts as “nonqualified” when it carries debt-like features: the holder can force the issuer to redeem it, the issuer must redeem it, the issuer has a redemption right it is more likely than not to exercise, or the dividend rate floats based on interest rates or similar benchmarks.⁴ The first three triggers apply only if the right or obligation can be exercised within 20 years of issuance.

Boot does not disqualify the reorganization. Shareholders who receive only qualifying stock still walk away tax-free. Section 356 governs only the shareholders who received something extra.

How Much Gain You Recognize

The calculation runs in two steps.

First, compute realized gain. Add the fair market value of the stock received to the value of the boot received, then subtract your adjusted basis in the stock you surrendered. That figure is the entire economic profit built into the exchange.

Second, apply the cap. You recognize the lesser of realized gain or the value of the boot.¹ The cap is the point of the rule. It stops the boot from dragging more gain into current tax than the shareholder actually made.

Say you surrender stock with a $100,000 basis and receive new stock worth $150,000 plus $20,000 in cash. Realized gain is $70,000. Recognized gain is the lesser of $70,000 or $20,000, so you report $20,000. The other $50,000 stays deferred in the basis of the new stock.

Change one number. Same $20,000 in cash and $150,000 in stock, but your basis in the old stock was $160,000. Realized gain is now $10,000. Even though you received $20,000 in cash, recognized gain is capped at $10,000 because realized gain is the smaller figure.

No Loss Recognition

Section 356 never lets you claim a loss. If your basis in the old stock exceeds the total value of what you received, the loss is deferred, not recognized. Receiving boot does not release it.¹ Instead, that loss is built into the basis of the new stock, which will exceed the stock’s market value, and you claim the loss on a later sale.

Capital Gain or Dividend

Amount is only half the picture. Character sets the rate. Under Section 356(a)(2), if the exchange “has the effect of the distribution of a dividend,” recognized gain is treated as dividend income up to the shareholder’s ratable share of the corporation’s accumulated earnings and profits. Anything above that is capital gain.¹

The earnings and profits ceiling matters. If the corporation has $5,000 of earnings and profits and you recognize $20,000 of gain, at most $5,000 is dividend. The remaining $15,000 is capital gain no matter what.

The Clark Hypothetical Redemption Test

In Commissioner v. Clark, the Supreme Court laid out how to decide whether an exchange has the effect of a dividend. Recast the transaction in two steps: assume the shareholder received only stock of the acquiring corporation, then assume the acquirer immediately redeemed enough of that stock to equal the actual boot.⁵

The hypothetical redemption is then tested under Section 302. In Clark, the taxpayer’s interest in the acquirer dropped from 1.3% to 0.9%, a reduction of roughly 29% that cleared the “substantially disproportionate” safe harbor under Section 302(b)(2). That safe harbor requires the shareholder to give up more than 20% of voting control and to hold less than 50% of the vote afterward.⁶

Section 302(b) offers four routes to exchange (capital gain) treatment for the hypothetical redemption: substantially disproportionate under 302(b)(2), complete termination of interest under 302(b)(3), a meaningful reduction that is “not essentially equivalent to a dividend” under 302(b)(1), or a partial liquidation attributable to a genuine business contraction under 302(b)(4).⁷ Clearing any one of the four makes the boot capital gain. Failing all four makes it a dividend up to ratable earnings and profits.

Why Most Shareholders Come Out with Capital Gain

The Clark test measures ownership in the acquiring corporation after the deal. The acquirer is usually much larger than the target, so a target shareholder ends up with a small slice of the combined company. Someone who held 10% of the target might hold well under 1% of the acquirer. That dilution clears Section 302 easily. Dividend treatment is a real risk mainly for controlling shareholders of the acquiring corporation, where the boot may not shift proportionate interest enough to matter.

Why Corporate Shareholders May Prefer Dividend Treatment

Individual shareholders now pay the same preferential rate on qualified dividends and long-term capital gains, so character usually does not change their bill much. Corporate shareholders think about it differently. A corporate recipient of dividend-treated boot can claim the dividends received deduction: 50% for most holdings, 65% if the shareholder owns at least 20% of the payer, or 100% within an affiliated group.⁸ Capital gain is fully taxable. For a corporate shareholder, dividend characterization can be the better result.

Spin-Offs Follow a Harsher Rule

Section 356 treats boot differently depending on whether the shareholder surrendered stock. In a split-off, shareholders hand in parent stock in exchange for subsidiary stock. Boot received alongside is governed by Section 356(a): capped at realized gain, tested for character under Clark.

In a spin-off, the parent distributes subsidiary stock pro rata and no one surrenders anything. When boot rides along, Section 356(b) kicks in and the entire value of the boot is treated as a Section 301 distribution.¹ That distribution follows the standard three-tier ordering: dividend to the extent of earnings and profits, then a tax-free return of basis, then capital gain once basis reaches zero.⁹

There is no cap at realized gain here. A shareholder with little or no gain can still owe dividend tax on the full value of the boot if the distributing corporation has enough earnings and profits.

When Assumed Liabilities Count as Boot

Acquirers routinely take on target debts. Section 357(a) says the assumption of a liability is generally not boot and does not by itself trigger gain.¹⁰ Two exceptions can flip that result.

If the principal purpose of the assumption was tax avoidance, or if the assumption had no genuine business purpose, the entire liability is recharacterized as cash boot.¹⁰ The taxpayer has to prove otherwise by a clear preponderance of the evidence, a heavier burden than the usual preponderance standard.

Section 357(c) can also treat excess liabilities as gain when assumed debt exceeds the basis of the property transferred. This rule primarily hits Section 351 transfers to controlled corporations and certain divisive reorganizations. Following the American Jobs Creation Act of 2004, most acquisitive reorganizations (Types A, C, and qualifying D and G) sit outside 357(c).¹¹

Basis and Holding Period After the Exchange

After a Section 356 exchange, the basis and holding period of the new stock determine the tax on the eventual sale. Getting them right avoids paying twice on the same gain.

Basis of the New Stock

Start with the adjusted basis of the old stock. Subtract the fair market value of any boot received, including cash. Add the amount of gain recognized on the exchange.¹² The result carries the deferred gain forward.

Using the earlier numbers: $100,000 old basis, minus $20,000 boot, plus $20,000 recognized gain, equals $100,000 basis in the new stock. The $50,000 of unrecognized gain remains embedded and surfaces on a later sale.

Basis of Boot Property

Boot property (other than cash) takes a basis equal to its fair market value on the exchange date.¹² Because the shareholder has already recognized gain attributable to that property, the fair-market-value basis prevents a second round of tax on the same amount when the property is later sold.

Holding Period

The holding period of the new stock tacks onto the holding period of the old stock, provided the old stock was a capital asset and the new stock takes a substituted basis from it. Section 1223 lets a shareholder who held the old stock long-term treat the new stock as long-term from day one.¹³ Boot property does not get a tacked holding period. Its clock starts fresh on the exchange date because its basis is fair market value, not substituted basis.

Reporting the Transaction

Shareholders who cross certain ownership thresholds must attach a statement to the return for the year of the reorganization. In a Section 354 exchange, a “significant holder” is someone who held at least 1% of the corporation’s stock by vote or value immediately before the exchange (5% for publicly traded stock), or who held securities with a basis of $1 million or more. The statement identifies the parties to the reorganization, the transaction date, the fair market value of stock or securities transferred, and the shareholder’s basis in the surrendered shares.

Section 355 separations use a parallel concept, the “significant distributee,” who reports the aggregate basis and fair market value of the stock and securities involved. The IRS uses this information to confirm that gain recognition and basis adjustments were calculated correctly.

Smaller shareholders skip the attached statement but still report the recognized gain on the individual return. Capital gain boot goes on Schedule D. Dividend boot goes in with dividend income. The acquiring or distributing corporation typically sends a statement or Form 1099 breaking down the consideration received, which does most of the arithmetic for shareholders in a public deal.

1
Office of the Law Revision Counsel. 26 USC 356 – Receipt of Additional Consideration
2
Office of the Law Revision Counsel. 26 USC 354 – Exchanges of Stock and Securities in Certain Reorganizations
3
Office of the Law Revision Counsel. 26 US Code 356 – Receipt of Additional Consideration
4
Legal Information Institute. 26 USC 351(g)(2)(A) – Nonqualified Preferred Stock
5
Justia US Supreme Court. Commissioner v. Clark, 489 US 726 (1989)
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eCFR. 26 CFR 1.302-3 – Substantially Disproportionate Redemption
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Office of the Law Revision Counsel. 26 US Code 302 – Distributions in Redemption of Stock
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Office of the Law Revision Counsel. 26 US Code 243 – Dividends Received by Corporations
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Office of the Law Revision Counsel. 26 US Code 301 – Distributions of Property
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Office of the Law Revision Counsel. 26 USC 357 – Assumption of Liability
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Internal Revenue Service. Revenue Ruling 2007-8
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Office of the Law Revision Counsel. 26 US Code 358 – Basis to Distributees
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Office of the Law Revision Counsel. 26 US Code 1223 – Holding Period of Property