The seven types of tax-free reorganization sit in Internal Revenue Code Section 368, which lets corporations merge, split, or restructure without an immediate tax bill if the deal fits one of the statutory patterns lettered A through G. The idea is deferral, not forgiveness: shareholders and corporations recognize their gains later, when they actually cash out. The tradeoff is strict compliance. A single missed structural requirement makes the entire transaction fully taxable.
Each type has its own rules about what consideration can change hands, who must end up in control, and what happens to the target afterward. On top of the letter categories sit several judge-made doctrines that every reorganization must also satisfy.
Type A: Statutory Merger or Consolidation
A Type A is a merger or consolidation carried out under federal or state corporate law. It is the most flexible type because the statute sets no cap on how much cash or other non-stock consideration the acquiring corporation can pay. The continuity of interest doctrine still limits how far the cash portion can go, but within that limit the parties can mix stock, cash, and assumed liabilities freely.
Two triangular variations use a subsidiary instead of the parent. In a forward triangular merger under Section 368(a)(2)(D), a subsidiary of the acquiring parent merges with the target and the target’s shareholders receive parent stock. The subsidiary must acquire substantially all of the target’s assets, and no stock of the subsidiary itself can be used as consideration. In a reverse triangular merger under Section 368(a)(2)(E), the subsidiary merges into the target, which survives as a subsidiary of the parent. The parent must end up with at least 80 percent of the target’s voting stock and 80 percent of every other class, acquired through the exchange of parent voting stock.
Type B: Stock-for-Stock Acquisition
Type B is the strictest type. The acquiring corporation exchanges solely its own voting stock for stock of the target, and after the exchange must hold at least 80 percent of the target’s combined voting power and 80 percent of every other class of stock.1Office of the Law Revision Counsel. 26 U.S. Code 368 – Definitions Relating to Corporate Reorganizations “Solely” is read strictly. Even a small amount of cash paid to target shareholders, beyond fractional-share adjustments, can disqualify the whole deal. The target survives as a subsidiary rather than being absorbed.
Type C: Assets-for-Stock Acquisition
In a Type C, the acquiring corporation obtains substantially all of the target’s assets in exchange for its voting stock. Consideration must be predominantly voting stock, though the acquirer can assume the target’s liabilities without that counting as non-stock consideration.1Office of the Law Revision Counsel. 26 U.S. Code 368 – Definitions Relating to Corporate Reorganizations A limited amount of other consideration is permitted, but only if at least 80 percent of the fair market value of the target’s property is acquired for voting stock. After the exchange, the target must distribute everything it received to its shareholders and dissolve.
Type D: Divisive and Acquisitive Transfers
Type D does double duty. The acquisitive version has one corporation transfer all or part of its assets to another corporation that the transferor, or its shareholders, controls immediately afterward. This shows up most often in smaller transactions where the same group of people controls both corporations.
The divisive version is far more common and covers spin-offs, split-offs, and split-ups under Section 355. A parent transfers a line of business to a new or existing subsidiary and then distributes the subsidiary’s stock to shareholders. A spin-off distributes the stock pro rata. A split-off exchanges it for some of the parent’s own shares. A split-up divides the entire parent into two or more new corporations. All three require that both the parent and the distributed subsidiary have been actively conducting a trade or business for at least five years before the distribution.1Office of the Law Revision Counsel. 26 U.S. Code 368 – Definitions Relating to Corporate Reorganizations
Type E: Recapitalization
A Type E reshuffles the capital structure of a single corporation. Common examples include exchanging bonds for stock, preferred for common, or common for preferred. No second corporation is involved. The change must amount to more than a minor adjustment; the IRS and courts look for a genuine restructuring of the outstanding securities.
Type F: Change in Form or Identity
A Type F covers a change in name, state of incorporation, or organizational form with no change in ownership or business operations. Reincorporating from Delaware to Nevada, for example, qualifies. Because nothing of economic substance changes, this is the simplest type and rarely generates controversy.
Type G: Bankruptcy Reorganization
A Type G applies when a debtor corporation in a bankruptcy or similar court-supervised proceeding transfers its assets to an acquiring corporation as part of a court-approved plan.1Office of the Law Revision Counsel. 26 U.S. Code 368 – Definitions Relating to Corporate Reorganizations The rules are relaxed compared with other types because distressed companies often cannot meet the continuity standards that healthy companies can. Stock or securities of the acquiring corporation must still be distributed to the debtor’s creditors or shareholders under the plan.
Requirements That Apply to Every Type
Fitting a transaction into one of the seven letter categories is only the first hurdle. Courts and the IRS have layered additional requirements on top of the statute. Fail any one and a deal that looks tax-free on paper becomes a fully taxable sale.
Continuity of Interest
The target’s former shareholders must receive a meaningful equity stake in the acquiring corporation. If they are mostly cashed out, the transaction looks like a sale, not a reorganization. Treasury Regulations provide a safe harbor at 40 percent, meaning the deal generally passes this test if at least 40 percent of total consideration consists of the acquirer’s stock. Below that level, the IRS is likely to challenge the transaction.
Continuity of Business Enterprise
The acquirer must either continue the target’s historic business or use a significant portion of the target’s historic business assets in some business after the deal closes.2Internal Revenue Service. Revenue Ruling 2001-24 This blocks a company from acquiring another only to strip its assets and claim tax-free treatment. The acquirer does not need to run the exact same business, but must do more than park the assets or sell them off.
Business Purpose
Every reorganization must have a genuine business reason beyond reducing taxes. A deal engineered solely for tax benefits will be recharacterized as taxable even if every other structural requirement is met. Common qualifying purposes include expanding into a new market, achieving operational efficiencies, or eliminating redundant corporate entities. The business purpose does not need to be the primary motive, but it must be real and substantial.
The Step-Transaction Doctrine
When a reorganization is broken into a series of separate steps, the IRS and courts may collapse those steps into a single transaction and test the end result. Courts apply three tests. The end-result test asks whether the individual steps were designed from the start to produce a single outcome. The interdependence test asks whether any single step would have been pointless without the others. The binding-commitment test, used least often, asks whether the parties were legally committed to completing all steps at the time the first step occurred. Aggressive structuring that uses intermediate steps to technically satisfy the statute while economically producing a taxable result is exactly what this doctrine targets.
Plan of Reorganization
The statute requires every corporate party to adopt a formal plan of reorganization spelling out the terms and steps of the transaction. This is not a technicality. Without a plan, the IRS can argue that individual exchanges were not carried out “in pursuance of the plan” and therefore do not qualify for nonrecognition under Sections 354 or 361.
What Tax-Free Actually Means
When a reorganization qualifies, shareholders who exchange old stock solely for stock in the acquiring corporation recognize no gain or loss.3Office of the Law Revision Counsel. 26 U.S. Code 354 – Exchanges of Stock and Securities in Certain Reorganizations The tax is deferred, not forgiven. It comes due later, when the shareholder eventually sells the new stock. Under Section 358, the basis of the surrendered stock carries over to the new stock, adjusted for boot received and gain recognized, so the deferred gain is preserved for the eventual sale.
Shareholders who receive cash, debt instruments, or other property alongside qualifying stock, collectively called “boot,” must recognize gain, but only up to the fair market value of the boot received. If the built-in gain is smaller than the boot, only the actual gain is recognized. Losses are never recognized in a reorganization, no matter how much boot changes hands.4Office of the Law Revision Counsel. 26 U.S. Code 356 – Receipt of Additional Consideration
On the corporate side, the acquirer generally recognizes no gain or loss when it issues its own stock as consideration, and the target recognizes no gain or loss when it transfers assets to the acquirer for stock, provided it distributes what it receives to its shareholders under the plan. The acquirer takes a carryover basis in the acquired assets, the same basis the target held immediately before the transfer, increased by any gain the target recognized.5Office of the Law Revision Counsel. 26 U.S.C. 362 – Basis to Corporations The acquirer therefore inherits the target’s unrealized gains and losses and will recognize them when it eventually sells the assets. Assuming the target’s liabilities does not count as boot under Section 357(a).6Internal Revenue Service. Revenue Ruling 2007-8
When a Reorganization Fails
Missing any statutory or judicial requirement recharacterizes the entire deal as a taxable sale. Shareholders recognize gain or loss on the difference between the fair market value of what they received and their basis in the surrendered stock. The corporation recognizes gain on any appreciated assets it transferred. There is no partial credit for almost qualifying. The transaction either meets every requirement or it is fully taxable.
The step-transaction doctrine and the continuity tests are where deals most often break. A transaction that technically satisfies the Type A or Type C definition can still be reclassified if the IRS successfully argues that shareholders were substantially cashed out, the target’s business was immediately abandoned, or the transaction lacked a real business purpose. Careful structuring and thorough documentation of the plan of reorganization are the primary defenses against reclassification.