What Is an F Reorganization?

The short answer

An F reorganization is a way to restructure a corporation, usually by putting a new holding company on top of it, without triggering tax. The name comes from IRC Section 368(a)(1)(F), one of seven types of tax-free “reorganizations” Congress carved out of the general rule that transferring assets or stock to a corporation is a taxable event.

Unlike most reorganizations, which combine or split up separate businesses, an F reorg doesn't change the business at all. Nothing about operations, contracts, employees, or customers changes. What changes is the ownership structure sitting above the business.

Why it's called a “mere change”

The statute defines an F reorganization as “a mere change in identity, form, or place of organization of one corporation, however effected.” Courts and the IRS have treated that language literally: an F reorg is supposed to be a change in form, not substance. The same business, held by the same owners, in the same proportions, just wrapped in a different corporate structure.

That's also why an F reorg is uniquely forgiving compared to other reorganization types. There's no continuity-of-business-enterprise test to satisfy, no business purpose inquiry beyond the transaction itself, and no requirement that unrelated parties be involved. It's a single-corporation transaction, by design.

The most common version: the F/S drop

The version that comes up constantly in practice looks like this: shareholders form a new corporation (“Newco”), contribute their stock in the existing operating company (“Oldco”) to Newco, and then Oldco converts into a single-member LLC that's disregarded for tax purposes, wholly owned by Newco. Afterward, Newco is the new parent, Oldco (now an LLC) still runs the business exactly as before, and the whole sequence is tax-free if it's structured correctly.

Why anyone bothers

• A buyer wants asset-sale tax treatment (a stepped-up basis) on a deal that's legally structured as a stock purchase.
• A seller wants to preserve an S election, a QSub structure, or specific tax attributes while still accommodating the buyer's preferred structure.
• A company is bringing in private equity and needs a holding company for the rollover equity to sit in.
• Owners want to change the state of incorporation, or consolidate entities, without a taxable event.

In almost every case, the F reorg itself isn't the goal. It's the plumbing that makes some other transaction, an acquisition, an investment, an election, possible without an unnecessary tax cost.

What it isn't

An F reorganization is not a way to avoid tax on a sale to a third party. It's not a loophole, and it doesn't make an otherwise taxable transaction tax-free. It restructures ownership of a single corporation among its existing shareholders. Any actual sale of the business to a new, unrelated buyer is still taxed under whatever rules apply to that sale. The F reorg just happens immediately before it, setting up the structure the sale will use.