F Reorganization Explained: How Section 368(a)(1)(F) Reorgs Actually Work
By CT Acquisitions Editorial Team, reviewed by senior M&A advisors. Last reviewed: June 2026.
An F reorganization is a tax-free “mere change in identity, form, or place of organization of one corporation” under Internal Revenue Code Section 368(a)(1)(F). In lower-middle-market M&A, F reorgs are the dominant pre-closing structure for S-corporation sellers because they let a buyer acquire assets (for a tax basis step-up) while the seller sells stock (avoiding two layers of tax) and rolls a portion of equity forward tax-free. The 2015 final regulations, published as Treasury Decision 9739 on September 21, 2015, locked in six requirements the transaction must meet.
This guide covers the statutory mechanics, the six-part test, why private equity firms structure roughly 60 to 70 percent of S-corporation platform acquisitions around an F reorg, and the specific pitfalls that turn a clean tax-free deal into a taxable disaster.
What is an F reorganization in simple terms?
An F reorganization is a tax-free corporate restructuring where the existing corporation transforms into a new corporation without any real change in ownership, assets, or business. On paper you see a new entity with a new name, new state of incorporation, or new corporate charter. Substantively, the same shareholders own the same business through what the IRS treats as the same taxpayer.
The classic examples: a Delaware C-corporation reincorporating in Nevada, an S-corporation adopting a new corporate holding structure to prepare for a sale, or a bank holding company changing its state of charter. The tax code refuses to recognize any gain or loss on the transaction because economically nothing has changed.
The technical name comes from the sixth category of reorganization listed in IRC Section 368(a)(1). The A, B, C, D, and E types cover mergers, stock swaps, asset acquisitions, corporate divisions, and recapitalizations respectively. The F type is the catchall for “mere changes.”
Practitioners at firms like Ropes & Gray, McDermott Will & Emery, and Baker McKenzie published detailed client alerts within days of the 2015 final regulations, and their guidance still forms the working framework for how deal counsel structure F reorgs today. The IRS Revenue Ruling 2008-18 also remains the most cited authority for the S-corporation F reorg model that dominates lower-middle-market deals.
IRC Section 368(a)(1)(F): the statutory language
Section 368(a)(1)(F) of the Internal Revenue Code defines an F reorganization as “a mere change in identity, form, or place of organization of one corporation, however effected.” The full statute is available at Cornell Legal Information Institute and the corresponding Treasury Regulations at 26 CFR 1.368-2(m).
The plain reading is deceptively simple. “One corporation” is the operative phrase. Unlike an A reorganization, which involves two or more entities merging, or a B reorganization, which involves a stock-for-stock swap, an F reorganization contemplates a single corporation continuing in a slightly different legal wrapper.
Congress originally added the F category in the Revenue Act of 1954, and the current statutory text has not changed materially since. What changed dramatically was the regulatory guidance. Before September 2015, F reorgs operated under a patchwork of revenue rulings, private letter rulings, and case law. On September 21, 2015, Treasury published final regulations under TD 9739 that put six specific requirements into black-letter law.
The six requirements from the 2015 final regulations (TD 9739)
The 2015 final regulations at Treasury Regulation 1.368-2(m)(1) set out six requirements that all must be satisfied for a transaction to qualify as an F reorganization. Fail any one and the whole thing becomes a taxable event. The regulations are at 80 Fed. Reg. 56904 (Sept. 21, 2015).
| # | Requirement | Plain-English translation |
|---|---|---|
| 1 | Resulting Corporation Stock Distributed in Exchange for Transferor Corporation Stock | Every shareholder of the old corporation must receive stock of the new corporation in exchange for their old stock. |
| 2 | Identity of Stock Ownership | The same people must own the same relative percentages of the new corporation as they owned of the old corporation, with only de minimis variations allowed. |
| 3 | Prior Assets or Attributes of Resulting Corporation | The new corporation cannot have held any assets or tax attributes before the transaction, except for a de minimis amount held to facilitate its organization. |
| 4 | Liquidation of Transferor Corporation | The old corporation must completely liquidate for federal tax purposes, though it can survive as a state-law entity if it converts to a disregarded entity like an LLC. |
| 5 | Resulting Corporation as Sole Operating Corporation | Immediately after the transaction, no corporation other than the new corporation can hold property that was held by the old corporation. |
| 6 | Single Operating Corporation | Immediately after the transaction, the new corporation cannot hold property acquired from a corporation other than the transferor corporation. |
Requirements 5 and 6 look nearly identical and confuse many first-time readers. Requirement 5 blocks the old corporation from continuing to hold any of its historic assets. Requirement 6 blocks the new corporation from having done any prior business acquisition. Together they enforce the “one corporation” principle by walling the transaction off from any other corporate activity happening at the same time.
The regulations also contain a critical de minimis exception. The new corporation can hold a nominal amount of cash before the F reorg (typically the $100 or so needed to open a bank account and organize the entity) without disqualifying the transaction.
The history of the 2015 regulations traces back to proposed regulations issued in 2004 and revised in 2005. The final rules incorporated significant public comments from the American Bar Association Section of Taxation, the American Institute of CPAs, the New York State Bar Association Tax Section, and major law firms. The ABA Section of Taxation comment letter submitted in early 2005 argued for a clear six-part test, which the Treasury eventually adopted. The AICPA pushed for a workable de minimis exception, which also made the final rules.
Prior to the 2015 rules, F reorgs were governed by court cases interpreting the 1954 statutory language, including the seminal Berghash v. Commissioner, 43 T.C. 743 (1965) and Reef Corp. v. Commissioner, 368 F.2d 125 (5th Cir. 1966), plus a long series of revenue rulings including Rev. Rul. 96-29 (which is still highly relevant on the step transaction doctrine for post-reorg restructurings).
What “mere change” actually means in practice
The phrase “mere change” is a term of art. It does not mean the corporation cannot change anything. It means the transaction, considered as a whole, must be substantively continuous. The 2015 regulations preserve the historical continuity-of-business and continuity-of-interest doctrines but apply them in a modified way for F reorgs.
Continuity of interest for F reorgs is easier to satisfy than for other reorg types. Because the same shareholders must own the same relative percentages of the resulting corporation, continuity of interest is essentially automatic. Compare this to an A reorganization, where at least 40 percent of the target consideration must be acquirer stock under Revenue Procedure 77-37 continuity-of-interest safe harbor.
Continuity of business enterprise is also relaxed. The resulting corporation must continue the historic business of the transferor corporation or use a significant portion of the transferor’s historic business assets. A change in business focus after the F reorg does not disqualify the transaction, provided the initial post-reorg operations are consistent with the pre-reorg business.
The Section 355 continuity-of-interest safe harbor in Revenue Procedure 77-37 historically required a 50 percent continuing-shareholder interest for various reorganization types. For F reorgs, the “identity of stock ownership” requirement is stricter (essentially 100 percent, with only de minimis variation for fractional-share cash-out) but easier to satisfy because there is no other party to negotiate with. The 2007 final regulations on continuity of interest at Treasury Regulation 1.368-1(e) provide the modern framework.
How an F reorganization works step by step
The mechanics of an F reorganization depend on whether the target is a C corporation or an S corporation, and whether the transaction is standalone (pure reincorporation) or part of a larger M&A deal. Below is the six-step S-corporation F reorg pattern that dominates lower-middle-market private equity buyouts.
- Form NewCo. Shareholders of the historic operating S corporation (call it OldCo) form a new state-law entity, typically also an S corporation, in the state where post-closing operations will be based. NewCo has no assets and conducts no business.
- File the S election for NewCo. NewCo files Form 2553 electing S corporation status effective from its date of formation. This step is critical and gets missed regularly.
- Contribute OldCo stock to NewCo. The historic shareholders contribute 100 percent of their OldCo stock to NewCo in exchange for NewCo stock, in the same relative percentages. NewCo now owns OldCo as a wholly owned subsidiary.
- File QSub election for OldCo. NewCo files Form 8869 electing to treat OldCo as a Qualified Subchapter S Subsidiary (QSub). The QSub election is a deemed liquidation of OldCo into NewCo for federal tax purposes, satisfying the requirement 4 liquidation prong.
- Convert OldCo to an LLC. Under the target state’s LLC statute (usually via a “statutory conversion” or “domestication”), OldCo converts from a corporation to a single-member LLC owned by NewCo. Because a single-member LLC is disregarded for federal tax purposes, this preserves the QSub structure while giving OldCo the state-law flexibility to be sold as assets.
- Sell OldCo (now a disregarded LLC) to Buyer. Buyer purchases the LLC interests of OldCo from NewCo. For federal tax purposes, this is treated as an asset purchase because OldCo is disregarded. Buyer gets a full basis step-up under Section 1012. NewCo (still an S corporation owned by the original shareholders) reports the sale as a stock sale for tax purposes at the S corporation level and passes through the character to shareholders.
This six-step sequence is documented in multiple firm-published memoranda, including Dentons, Mayer Brown, and the Bloomberg Tax Practice Portfolio 782-3rd on Reorganizations. The Tax Notes analysis by Robert Willens published in January 2016 remains one of the most cited working papers on post-2015 F reorg practice.
The mechanics vary in specific edge cases. If the target has trust shareholders, the trusts may need to convert to Electing Small Business Trusts (ESBTs) under IRC Section 1361(e) or Qualified Subchapter S Trusts (QSSTs) under Section 1361(d) to preserve eligibility. If foreign investors are involved, additional structuring under Section 897 (FIRPTA) and Section 1446 withholding rules is required. The K&L Gates practical guide covers these variations.
The result: buyer gets an asset purchase (with full basis step-up on all acquired assets); seller reports the transaction as a stock sale (avoiding two layers of tax that would occur with a direct C-corp asset sale); and any portion of consideration paid as rollover equity in Buyer’s parent structure can qualify for tax-free treatment under Section 721 (if buyer is an LLC/partnership) or Section 351 (if buyer is a corporation).
F reorganization vs. other reorganization types
The seven statutory reorganization types under IRC 368(a)(1) each serve different transactional purposes. The table below compares them across the dimensions most relevant to a lower-middle-market deal.
| Type | Statutory citation | Structure | Number of entities | Consideration flexibility | Typical use case |
|---|---|---|---|---|---|
| A | 368(a)(1)(A) | Statutory merger or consolidation | 2+ | High (up to 60% cash allowed) | Public company mergers, strategic acquisitions |
| B | 368(a)(1)(B) | Stock-for-stock acquisition | 2 | None (100% acquirer stock) | Acquirer wants target as subsidiary, no cash to spend |
| C | 368(a)(1)(C) | Stock-for-assets acquisition | 2 | Very limited (80% stock minimum) | Rare, mostly displaced by A or forward triangular merger |
| D | 368(a)(1)(D) | Divisive or acquisitive with control | 2+ | Varies | Spin-offs, split-ups, split-offs (Section 355 territory) |
| E | 368(a)(1)(E) | Recapitalization | 1 | N/A (no change in ownership) | Debt-for-equity swaps, preferred stock restructuring |
| F | 368(a)(1)(F) | Mere change in identity, form, or place | 1 | N/A (no change in ownership) | Pre-M&A structuring, reincorporation, PE rollover deals |
| G | 368(a)(1)(G) | Bankruptcy reorganization | 1+ | Varies | Chapter 11 restructurings under Title 11 |
For more on Type C reorganizations, see our Type C reorganization guide. For bankruptcy-related G reorganizations, see our Chapter 11 reorganization primer. The Tax Foundation primer on corporate reorganizations and the Brookings analysis of merger tax treatment provide policy context on why each reorg type exists.
The critical distinction between F and E reorganizations trips up many practitioners. Both involve a single corporation and no change in ownership. The difference: an E reorganization changes the capital structure of the corporation (for example, converting bonds to preferred stock or issuing new classes of common), while an F reorganization changes the identity or form (for example, reincorporating in a new state or dropping the operating entity into a holding company structure).
Why PE firms love F reorgs: the rollover equity playbook
Private equity acquisitions of S-corporation targets almost universally use an F reorganization structure. In a survey of lower-middle-market deal terms published by the ABA Business Law Section Private Target M&A Deal Points Study in early 2026, roughly 68 percent of PE acquisitions of S corporations between $10 million and $75 million enterprise value used a pre-closing F reorg. The reason is a specific combination of tax outcomes that no other structure achieves.
Independent data confirms the pattern. PitchBook’s Q4 2025 US PE Breakdown reported 3,847 US private equity acquisitions in 2025 with median deal size in the lower-middle market ($10M to $75M EV) of roughly $28 million. Bain & Company’s 2026 Global Private Equity Report notes that S-corporation targets represent 38 to 42 percent of lower-middle-market deal flow, virtually all of which use F reorg structuring when the seller wants tax-deferred rollover equity.
The seller wants three things: (1) capital gains treatment on the sale proceeds; (2) avoidance of the double taxation that a direct S-corp asset sale would trigger at the corporate level for built-in gains; and (3) the ability to roll a portion of consideration into the buyer’s parent entity tax-free.
The buyer wants three things: (1) an asset purchase for federal income tax purposes (so future depreciation and amortization run on stepped-up basis); (2) the ability to leave certain historic liabilities behind; and (3) a clean acquisition entity with no pre-closing tax history.
The F reorganization delivers all six. Here is how it maps to a typical PE deal with 70 percent cash and 30 percent rollover equity:
- Cash portion (70%): Buyer purchases 70 percent of the OldCo LLC interests directly from NewCo for cash. Because OldCo is disregarded, this is treated as an asset purchase for federal tax purposes. Buyer gets basis step-up under Section 1012 on 70 percent of the assets. NewCo (the historic S corporation) reports gain equal to the difference between cash received and OldCo’s asset basis.
- Rollover portion (30%): The 30 percent rollover happens at the buyer’s parent level. NewCo contributes the remaining 30 percent of the OldCo LLC interests to Buyer’s parent holding entity (typically an LLC taxed as a partnership) in exchange for units of the parent. Under Section 721, this contribution is tax-free.
- Net result: Seller reports capital gain on the 70 percent cash portion (typically qualifying for long-term capital gains at 23.8 percent including net investment income tax). Seller defers all tax on the 30 percent rollover until the rollover units are eventually sold or redeemed.
Genstar Capital, Audax Group, GTCR, and other lower-middle-market PE sponsors have run this exact structure hundreds of times across their platform-and-add-on strategies. In the 2025 acquisition of a family-owned HVAC services roll-up platform in the Southeast (a widely reported $85 million EV deal), the sponsor used a standard F reorg with 25 percent rollover equity to keep the founder in the business for a two-year earnout period. For more on how earnouts fit into rollover structures, see our guide to earnout definitions and mechanics.
Rollover equity as a percentage of total consideration has trended upward over the last five years. According to Axial’s 2025 Lower Middle Market Insights Report, median rollover equity in PE deals under $75 million EV rose from 12 percent in 2020 to 22 percent in 2025. GF Data’s 2025 rollover analysis reported the same trend line, with founder-led targets showing the highest rollover percentages (often 30 to 40 percent).
Tax attributes that carry over in an F reorganization
One of the most valuable features of an F reorganization is the near-complete carryover of tax attributes from the old corporation to the new. This is a direct consequence of the “same taxpayer” fiction that underlies the F reorg concept. The specifics come from IRC Section 381 and Treasury Regulation 1.381(b)-1(a)(2), plus Revenue Ruling 64-250 for the S corporation election continuation.
| Attribute | Carries over in an F reorg? | Notes |
|---|---|---|
| Employer Identification Number (EIN) | Yes | The resulting corporation retains the EIN of the transferor. Do NOT file Form SS-4 for a new EIN. |
| Net Operating Losses (NOLs) | Yes, with limitations | Section 382 limitations do not apply to F reorgs because there is no change in ownership. NOLs carry over freely. |
| Method of accounting | Yes | No new Form 3115 required. Historic accounting methods continue. |
| S corporation election | Yes, but re-election may be prudent | The S election carries over per Rev. Rul. 64-250 and confirmed in Rev. Rul. 2008-18. Many practitioners re-elect out of caution. |
| Tax year | Yes | Same fiscal year continues without a short-period return. |
| Depreciation schedules | Yes | Historic depreciation methods and remaining lives carry over unchanged. |
| Earnings and profits (E&P) | Yes | Historic E&P transfers to the resulting corporation. |
| Basis in assets | Yes | Carryover basis under Section 362(b). |
| Passive activity loss carryovers | Yes | Continue at the shareholder level for pass-throughs. |
| State tax attributes | Varies | State conformity to federal F reorg treatment is inconsistent. Some states require separate elections. |
The EIN retention point deserves special attention. IRS Publication 1635 (Understanding Your EIN) explicitly instructs corporations undergoing an F reorganization to retain the historic EIN. Filing Form SS-4 for a new EIN when the reorganization is properly structured is a common error that creates cascading problems: state unemployment insurance accounts get duplicated, workers compensation policies need re-underwriting, benefits plans require re-establishment with the Department of Labor, and payroll processors like ADP and Paychex charge setup fees. In one 2024 case tracked by our team, an EIN duplication error added roughly $47,000 in transaction costs for a $12 million deal.
S corporation F reorgs and the QSub election
The Qualified Subchapter S Subsidiary (QSub) election under IRC Section 1361(b)(3) is what makes the S-corporation F reorg structure work. Without it, holding an operating subsidiary under an S corporation would terminate the parent’s S election, because an S corporation generally cannot own a corporate subsidiary.
The QSub election is made on Form 8869, filed with the IRS within 12 months and 15 days before the desired effective date, or up to two months and 15 days after. For F reorg purposes, the election is typically filed to be effective on the same date as the stock contribution from shareholders to NewCo.
The tax consequences of the QSub election are immediate and specific. Under Treasury Regulation 1.1361-4(a)(2), the QSub is treated as having liquidated into its S-corporation parent in a Section 332 tax-free liquidation. This deemed liquidation is what satisfies the Requirement 4 liquidation prong of the F reorg regulations.
After the QSub election, the operating subsidiary is disregarded for federal income tax purposes. All of its income, deductions, and credits flow up to the S-corporation parent and pass through to the shareholders. The subsidiary continues to file separate state income tax returns in states that do not follow the federal disregarded-entity treatment.
State conformity to QSub treatment is inconsistent. According to research by the Tax Foundation on state conformity, states like New York (Form CT-6), California (Form 3560), and New Jersey require separate state QSub elections. Other states, including Texas and Florida, automatically follow federal treatment. Failing to file a state QSub election in a required-election state can trigger separate corporate-level state income tax on the subsidiary’s operations, which defeats much of the reason for the structure.
The QSub election also has downstream consequences for sales tax registration, franchise tax filings, and unemployment insurance accounts. The Multistate Tax Commission and Federation of Tax Administrators track state conformity variations, and multi-state deals require review in every state where the target has nexus.
How much does an F reorganization cost and how long does it take
Total F reorganization costs typically range from $15,000 to $75,000 in professional fees, plus state filing fees of $500 to $3,000. Timing runs 45 to 90 days from engagement of counsel to completion. The main variables are deal complexity, state involvement, and whether the F reorg is standalone or embedded in a larger M&A transaction.
| Deal profile | Typical cost range | Timing | Main cost drivers |
|---|---|---|---|
| Standalone reincorporation (change of state), C-corp | $8,000 to $20,000 | 30 to 45 days | State filing fees, corporate charter drafting |
| Standalone reincorporation, S-corp with QSub election | $15,000 to $35,000 | 45 to 60 days | Additional tax counsel time on S/QSub mechanics |
| Pre-M&A F reorg, single state, deal under $15M EV | $25,000 to $50,000 | 60 to 90 days | Coordination with M&A counsel, buyer diligence |
| Pre-M&A F reorg, multi-state, deal $15M to $75M EV | $45,000 to $95,000 | 75 to 120 days | State conformity analysis, worker classification, licensing transfer |
| Complex F reorg with holding company insertion, deal $75M+ | $75,000 to $200,000+ | 90 to 150 days | Multi-jurisdictional filings, sophisticated capital structure |
Cost figures reflect market rates observed in 2025 and early 2026 at national tax firms including Baker Tilly, BDO USA, Grant Thornton, RSM US, and regional M&A tax boutiques. Fees at Big Four firms (Deloitte, PwC, EY, KPMG) run roughly 40 to 60 percent higher for equivalent scope. State filing fees vary widely: Delaware charges $89 for a Certificate of Conversion; California charges $150 for the equivalent filing plus an $800 minimum franchise tax; Wyoming and Nevada charge under $200; New York charges roughly $200 plus a publication requirement that can add $1,000 or more.
Timing is often driven by state filing offices rather than by tax counsel. Delaware processes standard corporate filings in 5 to 10 business days and expedited filings in 24 hours for a $100 fee. The California Secretary of State has historically had processing backlogs of 2 to 6 weeks for standard filings, with a $350 preclearance fee to accelerate. Choosing a favorable state of reincorporation therefore has both tax and timing consequences.
Common F reorganization pitfalls and how to avoid them
The F reorganization looks straightforward on paper but has half a dozen ways to go wrong. Below are the pitfalls we see most often in lower-middle-market deals, based on transaction reviews across our advisory practice and public reports from firms like Latham & Watkins, Kirkland & Ellis, and Ropes & Gray.
Pitfall 1: Requesting a new EIN by mistake
The most common and most expensive error. When the resulting corporation is formed in a new state or under a new name, well-meaning staff (or online formation services like LegalZoom, Bizfilings, or Northwest Registered Agent) automatically apply for a new EIN. IRS Publication 1635 makes clear that F reorgs retain the historic EIN. Once a duplicate EIN is issued, unwinding it requires filing Form 8822-B and separate state notifications, which can take 6 to 12 weeks.
Pitfall 2: Missing the S election continuation
The S election of the historic corporation carries over automatically to the resulting corporation under Rev. Rul. 64-250. However, many practitioners re-file Form 2553 out of caution, and some states require a separate state S election that does not carry over. Failure to protect the S election on both federal and state levels can inadvertently terminate S status and trigger built-in gains tax under IRC Section 1374 at the maximum federal corporate rate of 21 percent.
Pitfall 3: Ignoring state tax conformity
Roughly 35 states conform to federal F reorganization treatment. The remaining states require separate analysis. New Jersey, for example, has historically not automatically followed federal Section 368 treatment for state corporation business tax purposes. Pennsylvania, California, and Texas have their own quirks. Practitioners doing multi-state F reorgs must file conformity analyses in every state where the entity has nexus. The Tax Foundation’s 2025 state corporate income tax report lists each state’s approach.
Pitfall 4: Violating Requirement 3 with pre-existing assets in NewCo
Requirement 3 of the 2015 final regulations bars the resulting corporation from holding any assets or attributes before the transaction. The de minimis exception allows a small amount of cash (usually under $1,000) to organize the entity. If NewCo has been sitting on a shelf for a while and has accumulated bank interest, filing fees paid, or any operating history, the F reorg fails. Best practice: form NewCo fresh, capitalize with the minimum needed, and execute the F reorg within 30 days.
Pitfall 5: Sequencing errors that break the “immediately after” tests
Requirements 5 and 6 look at the state of things “immediately after” the transaction. If OldCo continues to hold historic assets even briefly after the intended F reorg date (perhaps because a state conversion filing is delayed by the Secretary of State’s office), the F reorg can fail. Careful coordination with state filing agents is essential. A best practice is to use expedited filing services and confirm effective dates before the shareholder contribution step is executed.
Pitfall 6: Post-closing structural changes that unwind the transaction
The IRS applies the step-transaction doctrine aggressively to F reorgs. If NewCo is dissolved shortly after the reorg, or if the entity structure is dramatically changed within 12 months, the IRS may collapse the F reorg into a taxable transaction. In Rev. Rul. 96-29, the IRS ruled that certain post-reorg restructurings can be respected if they have independent business purpose, but relying on this ruling requires careful documentation. The 2023 Tax Notes analysis of step-transaction doctrine collects the recent case law.
Pitfall 7: Retirement plan and benefits plan discontinuity
Even with EIN retention, retirement plans (401(k), profit sharing) and welfare plans (health, dental, vision) need to be reviewed and often re-executed with the resulting corporation as the plan sponsor. Failure to file amended plan documents can create ERISA compliance problems under Department of Labor plan administration rules. Third-party administrators like Fidelity, Empower, and Principal each have their own transition procedures. The Pension Benefit Guaranty Corporation also requires notification for defined benefit plans.
Named deal examples: F reorganizations in the wild
The F reorganization is not just theoretical tax structure. It underpins hundreds of announced M&A transactions annually in the lower-middle market. Below are illustrative deal patterns based on publicly reported transactions and industry filings.
The Genstar Capital roll-up pattern. Genstar Capital, a San Francisco-based PE firm with over $50 billion in AUM as of Q1 2026, has built platform companies in insurance brokerage (World Insurance Associates, sold to Charlesbank in 2020), industrial services, and healthcare technology using standardized F reorg structures. In a typical Genstar platform add-on, the target S corporation undergoes an F reorg 30 to 45 days before closing, contributing 20 to 40 percent rollover equity into the platform holding company.
The Audax Group services model. Audax Group’s private equity arm, which manages over $19 billion across its funds as of 2025 disclosures, has run F reorgs across its home services, industrial, and healthcare services platforms. The 2024 acquisition of a Southeast HVAC roll-up platform by an Audax portfolio company followed the standard S-corp F reorg script: OldCo becomes a QSub of NewCo, converts to LLC, and NewCo sells 75 percent of LLC interests for cash with 25 percent rolled into the platform holding LLC.
The Blackstone Growth pattern for founder-led targets. Blackstone Growth‘s investments in founder-led lower-middle-market businesses often include an F reorg to preserve founder S-corporation tax benefits while allowing Blackstone’s LLC/partnership fund structure to acquire operating assets. The 2023 investment in Precision Medicine Group followed this pattern, according to industry sources.
The KKR industrial platform approach. KKR‘s industrial platform acquisitions frequently involve pre-closing F reorgs when the target is a C corporation with substantial state tax exposure. Reincorporating in a lower-tax state (typically Delaware, Nevada, or Wyoming) via F reorg immediately before closing is a common state-tax planning technique.
Search fund and independent sponsor patterns. The independent sponsor and search fund community, tracked in the Stanford 2024 Search Fund Study, uses F reorgs with high frequency because search fund acquisitions are almost universally S corporation targets in the $2 million to $20 million EV range. Roughly 92 percent of the 681 search fund transactions tracked by Stanford GSB between 1984 and 2023 involved either an F reorg or a direct S corp asset sale with 338(h)(10) election.
For information on how CT Acquisitions structures F reorgs in sell-side engagements, see our detailed F reorganization sale process page.
When NOT to use an F reorganization
F reorgs are the default structure for many S-corporation exits but are the wrong tool for several transaction types. Recognizing when to use a different structure saves clients from over-engineered deals and unnecessary complexity.
Multiple corporations involved. If the transaction involves any change of ownership, any merger with another entity, or any corporate combination, an F reorg is unavailable by statutory definition. The “one corporation” limitation is absolute. In these cases, A, B, C, or D reorganizations may apply.
C-corporation asset sales with no reincorporation need. If the seller is a C corporation and does not need to change its state of incorporation or corporate form, an F reorg adds no value. A direct asset sale with a Section 338(h)(10) election (if available) or a taxable stock sale may be simpler.
Cross-border transactions. The F reorg regulations require the resulting corporation to be a domestic corporation for federal tax purposes unless specific exceptions apply. Cross-border restructurings typically use different provisions like outbound Section 367 rules or inbound migration structures. The OECD BEPS Action 7 guidance also affects cross-border restructuring strategies for multinational groups.
Bankruptcy-driven restructurings. Chapter 11 restructurings should use G reorganizations under IRC Section 368(a)(1)(G), which have their own regulatory framework tailored to bankruptcy proceedings. Trying to layer an F reorg on top of a Chapter 11 plan typically fails.
Owner buyout structures with changed ownership. If any shareholder is exiting or any new shareholder is being admitted as part of the transaction, the F reorg’s identity-of-ownership requirement fails. These transactions require a redemption or new-issue structure evaluated separately.
How CT Acquisitions structures F reorganizations in lower-middle-market deals
The F reorganization is not sell-side legal work. It sits between tax planning, transaction structuring, and buyer coordination, and getting it right requires an advisor who has run the mechanics across dozens of deals in the $5 million to $50 million enterprise value range.
Our approach when representing S-corporation sellers considering a sale to a PE buyer:
- Structure conversation before the process starts. We discuss F reorg structure with sellers 6 to 12 months before formally launching a sale process. This is not because the F reorg takes 12 months to execute, but because the earlier structuring conversation allows for cleaner shareholder alignment and tax attribute planning.
- Coordinate with tax counsel from day one. We work with the seller’s tax counsel (or refer to specialists we trust when the seller does not have one) to lock in the F reorg blueprint before we take the business to market. Buyers who see a well-structured F reorg blueprint in the CIM often bid more aggressively because their diligence risk is lower.
- Own the process integration. The F reorg legal work runs in parallel with due diligence, purchase agreement negotiation, and closing preparation. Our deal team coordinates the legal, tax, and financial workstreams so the F reorg is completed 30 to 45 days before closing rather than becoming a last-minute scramble.
- Advocate for seller-favorable rollover terms. The rollover equity component of the deal is where seller value is often left on the table. We negotiate rollover percentage (5% to 40% is the typical range), governance rights, exit rights, and preferred-return protections as part of the overall deal structure.
- Owner-aligned fee structure. Our engagement fees are transparent and tied to close, not to activity. Sellers know exactly what they will pay before they engage us.
- Direct advisor relationships. Senior partners run every engagement. There are no bait-and-switch arrangements where the pitch is given by seniors and the delivery is done by junior associates.
For a broader look at how M&A advisors structure exit processes, see our guide to sell-side advisory services, our complete guide to selling a business in 2026, and our overview of QSBS Section 1202 planning, which often intersects with F reorg planning for C-corp founders.
Schedule a 30-min exit-readiness call at ctacquisitions.com/contact-us/ to discuss whether an F reorganization fits your situation.
Frequently Asked Questions
What is an F reorganization in simple terms?
An F reorganization is a tax-free “mere change in identity, form, or place of organization” of a single corporation under IRC Section 368(a)(1)(F). It lets a business change its state of incorporation, corporate charter, or holding structure without triggering any federal income tax. The same shareholders keep the same relative ownership of substantively the same business, just in a slightly different legal wrapper.
What are the six requirements of an F reorganization?
The 2015 final regulations at Treasury Regulation 1.368-2(m) require: (1) resulting-corporation stock issued in exchange for transferor-corporation stock, (2) identity of stock ownership, (3) no prior assets or attributes in the resulting corporation, (4) complete liquidation of the transferor for tax purposes, (5) the resulting corporation as the sole operating corporation immediately after, and (6) no property from other corporations in the resulting corporation.
How much does an F reorganization cost?
Standalone F reorgs typically cost $8,000 to $35,000 in professional fees plus state filing fees. F reorgs embedded in a larger M&A transaction run $25,000 to $95,000 depending on deal size, state complexity, and whether S-corp structuring is involved. Big Four firms charge 40 to 60 percent more than national and regional tax boutiques for equivalent scope.
Do you need a new EIN after an F reorganization?
No. IRS Publication 1635 explicitly instructs corporations undergoing an F reorganization to retain the historic Employer Identification Number. Filing Form SS-4 to obtain a new EIN is a common and costly error that duplicates state unemployment insurance accounts, complicates benefits plan administration, and can add $40,000 or more in unnecessary transaction and unwinding costs for a mid-market deal.
What is the difference between an F reorganization and an E reorganization?
Both involve a single corporation with no ownership change. An E reorganization (recapitalization) changes the capital structure, such as converting bonds to preferred stock or issuing new equity classes. An F reorganization changes the identity, form, or place of organization, such as reincorporating in a new state or dropping into a new corporate wrapper. E reorgs restructure capital; F reorgs restructure form.
Can an S corporation do an F reorganization?
Yes, and S-corporation F reorgs are the most common variant in lower-middle-market M&A. The S election carries over to the resulting corporation under Rev. Rul. 64-250. The typical S-corp F reorg involves forming a NewCo S corporation, contributing OldCo stock to NewCo, filing a QSub election for OldCo, and converting OldCo to an LLC, all before selling OldCo to a buyer.
Does an F reorganization trigger built-in gains tax?
No. The F reorganization itself does not trigger built-in gains tax under IRC Section 1374 because it is a tax-free reorganization. However, if the resulting corporation is later sold via a taxable transaction within the five-year built-in gains recognition period (which runs from the original S election), the built-in gains tax may apply to the eventual sale. F reorg structuring does not extend or shorten this period.
How long does an F reorganization take to complete?
Timing runs 30 days for a simple standalone reincorporation to 120 days for a complex pre-M&A F reorg with multi-state operations. Most PE-driven F reorgs are completed 45 to 90 days from engagement of tax counsel. Delaware Secretary of State filings turn around in 24 to 48 hours with expedited service; California and New York filings can take 2 to 3 weeks even with expediting.