Section 355 Spin-Off Requirements and Tax Consequences

A corporate spin-off qualifies for tax-free treatment under Section 355 only if the parent and the subsidiary together clear every one of a stacked set of tests: an active trade or business on each side with a five-year history, a real corporate business purpose, no “device” for bailing out earnings, the right distribution of control, continuity of shareholder interest and business enterprise, and the anti-abuse rules that police planned acquisitions and investment-heavy corporations. Miss one, and the transaction becomes fully taxable to the corporation and to every shareholder who received stock.

The Three Structures That Section 355 Covers

The same requirements apply whether the separation is structured as a spin-off, a split-off, or a split-up. In a spin-off, the parent distributes the subsidiary’s stock pro rata to all shareholders and no one gives anything up. In a split-off, selected shareholders exchange parent stock for subsidiary stock, often to separate ownership groups that no longer want to run one company together. In a split-up, the parent distributes stock of two or more subsidiaries in exchange for all its outstanding stock and then dissolves. The choice among the three is driven by business goals, not by differing qualification standards.

Active Trade or Business on Both Sides

Immediately after the distribution, both the parent and the subsidiary must each be engaged in the active conduct of a trade or business.¹ This is the main objective gatekeeper, and it exists to keep corporations from using Section 355 to hive off passive investment portfolios or cash hoards without tax.

The Five-Year History Rule

Each qualifying business must have been actively conducted throughout the five-year period ending on the date of distribution.¹ A two-year-old startup does not qualify. Preparatory revenue during the lookback window does not qualify. Minor product-line changes do not break the chain, but the core activity has to trace back a full five years on each side. If the parent keeps a manufacturing operation and spins off retail, each division needs its own five-year record.

What Counts and What Does Not

Holding stock, securities, or land for investment income fails. Collecting rent fails unless the corporation performs substantial management and operational services for tenants. The dividing line is whether the corporation’s own officers and employees carry out meaningful day-to-day managerial and operational functions.

A single business can be split vertically, with production going one way and distribution the other, as long as each resulting entity is independently capable of active conduct and draws on its share of the five-year history.

Acquisitions Within the Five-Year Window

The statute blocks the shortcut of buying a business and immediately spinning it off. If the active trade or business was acquired in a taxable transaction within the five-year lookback, it does not count. The same rule applies if the parent acquired the subsidiary’s stock in a taxable purchase within five years.¹ If the acquisition was itself a tax-free reorganization, the original owner’s clock generally carries over. A single taxable step anywhere in the chain can disqualify the entire distribution.

A Real Corporate Business Purpose

The distribution must be motivated by a real, substantial, non-tax business reason relating to one of the corporations. The need must be immediate, and the separation must be the only practical way to accomplish the goal. If the corporation could achieve the same result without distributing subsidiary stock, the test fails.

Recognized purposes include:

Facilitating an acquisition where a buyer wants one division but not the other.
Regulatory compliance requiring a regulated business to operate independently from an unregulated one.
Resolving disputes between antagonistic shareholder factions who each want to run a different piece of the business.
Producing substantial, measurable cost savings that cannot be achieved while the businesses remain combined.

Shareholder-level tax or investment goals do not count. The purpose has to belong to the corporation, and if the IRS later challenges the distribution, the corporation carries the burden of proving a legitimate corporate need. Documentation built before the transaction is what shoulders that burden.

The Non-Device Test

Even with two qualifying businesses, the distribution still fails if it is “principally a device” for distributing corporate earnings and profits at capital gains rates rather than dividend rates. It is a facts-and-circumstances test.

The strongest indicator of a device is a prearranged sale. If shareholders plan to sell stock of either corporation shortly after the distribution, the IRS treats it as a disguised cash-out, and a sale negotiated before the distribution is particularly damaging. A sale years later with no prior planning is far less risky.

Asset composition matters too. A subsidiary that emerges loaded with cash, marketable securities, or other assets unrelated to the active business looks like it was designed to isolate liquid value. The higher the ratio of non-business assets to business assets, the more the transaction looks like a device.

Weighing the other way: a strong corporate business purpose is the single most important factor against a device finding, and a distribution to widely dispersed public shareholders reduces device risk because no one shareholder can orchestrate a disguised dividend.

Control and Continuity

Distributing Control of the Subsidiary

The parent must distribute enough subsidiary stock to constitute “control” as defined in Section 368(c): at least 80 percent of the total combined voting power of all voting stock, and at least 80 percent of the total shares of every other class.²

Retaining up to 20 percent is technically allowed, but the parent has to establish to the IRS’s satisfaction that the retention is not motivated by a principal purpose of avoiding federal income tax.¹ In practice, most distributions transfer 100 percent to avoid the argument entirely. If the subsidiary is newly formed for the transaction, the parent must have obtained control tax-free, typically through a Section 351 contribution of assets immediately before the spin-off.

Continuity of Interest

Judicial doctrine, enforced through Treasury regulations, requires pre-distribution shareholders to maintain a meaningful ongoing equity stake in both corporations after the separation. The transaction must look like a rearrangement of existing ownership, not a liquidation or disguised sale. Large sales by insiders shortly after distribution break continuity of interest and reinforce a device finding at the same time.

Continuity of Business Enterprise

Both corporations must actually keep running their respective active businesses after the separation. An immediate shutdown or sale of the underlying operation signals that the transaction was never a genuine restructuring.

Section 355(e): The Planned-Acquisition Trap

Section 355(e) targets spin-offs used as the setup for a sale. If, as part of a plan or series of related transactions, any person acquires a 50 percent or greater interest in either the parent or the subsidiary, the parent recognizes gain on the distribution as though the subsidiary stock were not qualified property.¹ Shareholders still get tax-free treatment, but the corporate-level tax bill can be very large.

An acquisition is presumed to be part of a prohibited plan if it happens during the four-year window running from two years before the distribution to two years after. The corporation can rebut the presumption, but the burden is heavy.

The Safe Harbors

Treasury regulations set out safe harbors that, if met, conclusively establish that an acquisition and a distribution are not part of a plan:³

The acquisition occurred more than six months after the distribution, no negotiations began before that six-month mark, and the distribution was motivated in whole or substantial part by a corporate business purpose other than facilitating the acquisition.
Same six-month timing, with a business purpose to facilitate acquisitions of no more than 33 percent of one corporation’s stock, and no more than 20 percent of the target’s stock was acquired or negotiated before the six-month mark.
The acquisition occurred more than two years after the distribution with no agreements or substantial negotiations at the time of the distribution or within six months afterward.
The acquisition occurred more than two years before the distribution with no agreements or substantial negotiations about the distribution at the time of the acquisition or within six months afterward.
Stock of the parent or subsidiary is listed on an established market and the transaction is between shareholders who each own less than five percent.
Stock was acquired by an employee or director in connection with services in a Section 83 transaction, provided the amount is not excessive relative to the services performed.

When a spin-off precedes a merger or acquisition of one of the resulting companies, landing inside one of these safe harbors can be the difference between a tax-free restructuring and a massive corporate gain.

Section 355(g): Investment-Heavy Corporations

Section 355(g) draws a hard line against using spin-offs to separate investment assets from operating businesses. If either the parent or the subsidiary is a “disqualified investment corporation” immediately after the distribution, and any person who did not already hold a 50 percent or greater interest ends up with one, the distribution loses its tax-free status.¹

A corporation is disqualified when the fair market value of its investment assets equals or exceeds two-thirds of the fair market value of all its assets. Investment assets include cash, stock, partnership interests, debt instruments, options, and similar financial property.

Tax Consequences When the Distribution Qualifies

Shareholders

Shareholders who receive subsidiary stock recognize no gain or loss, and the distribution is not treated as a dividend.¹ Each shareholder allocates the adjusted basis of their original parent stock between the parent shares they still hold and the subsidiary shares they received, using relative fair market values immediately after the distribution. If parent stock is worth $60 per share and subsidiary stock is worth $40, the shareholder puts 60 percent of the original basis into parent shares and 40 percent into subsidiary shares.

Cash or other property received alongside the subsidiary stock (boot) is taxable. Recognized gain cannot exceed the amount of cash plus the fair market value of other property received.⁴ That gain is treated as a dividend to the extent of the shareholder’s ratable share of the corporation’s accumulated earnings and profits, with any remainder taxed as capital gain from an exchange. In a split-off, whether boot triggers dividend treatment turns on whether the exchange has the effect of a dividend distribution, tested by a hypothetical stock redemption.

The Corporation

The parent corporation recognizes no gain or loss on distributing the subsidiary’s stock.⁵ Distributing appreciated stock without a corporate-level tax is one of the most valuable features of Section 355. Nonrecognition evaporates, however, if Section 355(e) applies because a planned acquisition breached the 50 percent threshold, or if the distribution is disqualified under Section 355(d) based on stock purchased within the preceding five years.

When the parent contributes assets to a newly formed subsidiary before distributing its stock, that contribution has to independently qualify as tax-free under Section 351, or gain is triggered on the contribution itself.

Earnings, Profits, and Tax Attributes

After the separation, the parent’s accumulated earnings and profits must be divided between the parent and the subsidiary under a “proper allocation” prescribed by regulation.⁶ That allocation shapes the future dividend treatment of distributions by each corporation.

Net operating losses and most other tax attributes do not automatically move to the subsidiary. Section 381, which governs carryovers in acquisitive reorganizations, does not apply to divisive reorganizations.⁷ The parent generally retains its own NOL carryforwards, credits, and other attributes. If ownership changes accompany the spin-off, Section 382 may still limit how quickly either corporation can use pre-change losses.

Required Reporting

The parent must attach a statement to its return for the year of the distribution identifying the subsidiary, every significant distributee, the distribution date, the aggregate fair market value and basis of distributed property, and any private letter ruling obtained.⁸ If the parent contributed assets to the subsidiary under Section 351 as part of the plan, a separate statement covers that contribution.

Each significant distributee files a corresponding statement giving the names and identification numbers of both corporations, the distribution date, and the aggregate basis of stock surrendered along with the fair market value of stock and other property received.⁸

If the spin-off is an acquisition of control or a substantial change in capital structure and the fair market value of the stock involved reaches $100 million or more, the corporation must also file Form 8806 within 45 days of the transaction or by January 5 of the following year, whichever comes first.⁹

1
Office of the Law Revision Counsel. 26 USC 355 – Distribution of Stock and Securities of a Controlled Corporation
2
Office of the Law Revision Counsel. 26 USC 368 – Definitions Relating to Corporate Reorganizations
3
IRS. Recognition of Gain on Certain Distributions of Stock or Securities in Connection With an Acquisition
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Office of the Law Revision Counsel. 26 US Code 356 – Receipt of Additional Consideration
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Office of the Law Revision Counsel. 26 USC 361 – Nonrecognition of Gain or Loss to Corporations and Treatment of Distributions
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Office of the Law Revision Counsel. 26 US Code 312 – Effect on Earnings and Profits
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eCFR. 26 CFR Part 1 – Carryovers
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GovInfo. 26 CFR 1.355-5 – Records to Be Kept and Information to Be Filed
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eCFR. 26 CFR 1.6043-4 – Information Returns Relating to Certain Acquisitions of Control and Changes in Capital Structure