Tax-free spin-off qualification: What’s at stake

Completing a tax-free spin-off provides significant tax advantages. In a spin-off, a parent corporation (Distributing) distributes stock of a subsidiary (Controlled) to its shareholders. The tax costs of a spin-off transaction that does not qualify for tax-free treatment can be prohibitive, resulting in tax liability for both Distributing and the shareholders who receive Controlled stock. For a spin-off to qualify for tax-free treatment for both Distributing and the shareholders, numerous requirements must be met.

Change to tax-free spin-off rules

The October 2026 partial withdrawal of proposed regulations governing tax-free corporate spin-offs signals the adoption of a more flexible approach by Treasury and the IRS. For companies with significant amounts of cash or investment assets, this development may make tax opinions or IRS rulings supporting tax-free qualification easier to obtain. However, documenting tax-free qualification can remain costly and/or time-consuming due to the many requirements that still must be met for tax-free treatment.

Proposed spin-off regulations were issued in July 2016 (the 2016 proposed regulations, (REG-134016-15, 81 Fed. Reg. 46004) and modified in October 2026 (the 2026 partial withdrawal, REG-134016-15, 91 Fed. Reg. 66540).

Those proposed rules address two of the tax-free spin-off requirements:

1. The ATB requirement: Distributing and Controlled must both conduct an active trade or business (ATB) under section 355(b) and Reg. section 1.355-3.

1. The non-device requirement: The spin-off must not be used principally as a device for the distribution of earnings and profits (a Device) under section 355(a)(1)(B) and Reg. section 1.355-2(d).

Valuation issue: Spinning off a “hot dog stand” business

Whether the business assets involved in a spin-off must be valuable in relation to the companies’ other assets has long been an open question. For example, what if Controlled operates a hot dog stand business worth $20,000 and has non-business assets worth $2 million? Prior government guidance did not necessarily deny tax-free treatment to this hot dog stand spin-off.

The 2016 proposed regulations would deny tax-free treatment. Under the 2016 proposed regulations, spin-offs would not qualify for tax-free treatment if the non-business assets of either Distributing or Controlled have a fair market value (FMV) that is too high in relation to the FMV of the corporation’s business assets. In the example above, the hot dog stand worth $20,000 would not support a tax-free spin-off when coupled with $2 million of non-business assets.

Partial withdrawal of proposed valuation-based restrictions

The 2016 proposed regulations included multiple detailed rules addressing business valuation issues in spin-offs in much more detail than existing final regulations. The 2026 partial withdrawal removes only three of these proposed rules:

1. Per se device test
2. Anti-abuse rule for nonbusiness asset percentages
3. Anti-abuse rule for five-year active business asset percentages

Each of these three rules had been criticized by tax practitioners for lacking in fairness or flexibility.

Significant items remaining in the 2016 proposed regulations are as follows:

1. ATB requirement: The 2016 proposed regulations would apply a 5% ATB size test to all spin-offs. Under this minimum ATB test, if either Distributing or Controlled has a five-year-ATB asset percentage of less than 5%, the spin-off would not qualify for tax-free treatment. The five-year-ATB asset percentage would be determined by dividing the FMV of the relevant corporation’s five-year-ATB assets by the FMV of its total assets.

   Rules for classifying assets as business or non-business assets in spin-off contexts also remain in the 2016 proposed regulations. Distributing and Controlled would each be required to characterize the assets they hold and determine the assets’ FMV. Rules would be provided for determining whether cash, cash equivalents, stock of subsidiaries and interests in partnerships are considered business or non-business assets.

2. Non-Device requirement: As noted above, if a spin-off is a Device, it does not qualify for tax-free treatment; it instead generally triggers tax at both the corporate level and the shareholder level. Whether a spin-off is a Device is a facts-and-circumstances-based determination involving examination of all relevant factors (the Device Test). See Reg. section 1.355-2(d)(1). The final regulations governing the Device Test list Device factors, such as the sale of stock after a distribution, and some non-Device factors, such as a corporate business purpose. Another relevant factor for the Device Test is the nature and use of Controlled’s assets.

   The 2016 proposed regulations would heighten the specificity and impact of this nature and use factor under the Device Test. They propose detailed rules that would require examinations of the business and non-business assets of both Distributing and Controlled.

A more detailed RSM-authored summary of the 2016 proposed regulations is available here: Proposed ‘hot dog stand’ regulations for spinoffs