An F reorganization lets you sell units, not S corp stock.

Selling an S corporation usually means the buyer wants asset-sale tax treatment and you want a single level of tax. A pre-closing reorganization under Section 368(a)(1)(F), following the pattern in Rev. Rul. 2008-18, gives both sides that. You sell LLC units: equity under state law, an asset purchase for tax. Stated as of September 2026.

What is an F reorganization, and why does it come up when you sell an S corporation?

An F reorganization is a change of corporate shell that the tax law ignores. The statute calls it “a mere change in identity, form, or place of organization of one corporation, however effected.” Before an S corporation sale, it places a new holding company above your operating company so the buyer can purchase units instead of stock.

The conflict is structural. Your buyer wants to be treated as buying assets, because it then takes basis measured by what it paid. You want one level of tax. A true asset sale delivers the buyer’s side but drags every contract, license, lease and bank account through a transfer. A stock sale is the reverse.

Be precise about what one level of tax means, because the phrase is oversold. The unit sale is an asset sale for tax, so price is allocated across asset classes under the residual method and reported on Form 8594. Recapture, inventory and receivables produce ordinary income, not capital gain. That allocation is a price term.

One entity-level tax must be ruled out rather than assumed away. If the company was a C corporation before it elected S status, Section 1374 can tax built-in gain recognized inside the five-year recognition period. The reorganization cures neither that nor a defective S election. Treasury’s 2015 regulations set out six requirements for F treatment.

Law: 26 U.S.C. 368(a)(1)(F), 1374, 1060; Form 8594; Treas. Reg. 1.368-2(m) (T.D. 9739, 2015).

What are the steps in a Rev. Rul. 2008-18 F reorganization?

Rev. Rul. 2008-18 describes the pattern the parties follow. The shareholders form a new corporation and contribute all of the existing company’s stock to it. The new corporation elects to treat the operating company as a qualified subchapter S subsidiary, effective immediately following the transaction. The operating company then converts to a single-member LLC under state law.

• Form the holding company. It must itself meet the small business corporation requirements.
• Contribute the stock. All shareholders contribute their shares for holding company stock, in the same proportions.
• Make the QSub election. The holding company files Form 8869, effective immediately after the contribution.
• Convert under state law. The operating company converts to a single-member LLC, where its state offers that route.
• Sell units. At closing, the holding company sells the LLC units to the buyer.

Two results matter to you. Under the ruling, the holding company makes no new S election; S status carries through. Under the Instructions for Form 8869, no final return is required for the operating company where the QSub election is made pursuant to a reorganization under Section 368(a)(1)(F) and Rev. Rul. 2008-18. That relief sits in the instructions, not the ruling, so check the version current for your filing year.

The EIN rule cuts the other way from what owners expect. The holding company gets its own EIN. The operating company keeps the EIN it has always had and uses it whenever it is otherwise treated as a separate entity for federal tax purposes, including employment and certain excise taxes.

Law: Rev. Rul. 2008-18, 2008-13 I.R.B. 674 (amplifying Rev. Rul. 64-250, 1964-2 C.B. 333); Instructions for Form 8869 (Rev. 12/2020).

Why is the QSub election timing the thing that can break it?

The QSub election must be timely and effective immediately following the stock contribution. That date is what makes the steps a reorganization under Section 368(a)(1)(F) rather than a set of unrelated transfers. Form 8869 is generally filed no earlier than twelve months before, and no later than two months and fifteen days after, that requested effective date.

Miss the window and relief exists, but none of it is automatic. Rev. Proc. 2013-30 offers a simplified route for certain late QSub elections, generally within three years and 75 days of the intended effective date, and only if its conditions are met. Otherwise, relief for an inadvertently invalid election under Section 1362(f) is discretionary and comes by private letter ruling, on the IRS’s timetable.

I ask for the S election file and the proposed QSub effective date before I read a draft purchase agreement, because those dates decide what the agreement can safely say.

The election date is the structure. Everything else is paperwork built on top of it.

Law: 26 U.S.C. 1361(b)(3), 1362(f); Treas. Reg. 1.1361-3; Instructions for Form 8869; Rev. Proc. 2013-30, 2013-36 I.R.B. 173.

Why not just make a Section 338(h)(10) election instead?

A Section 338(h)(10) election treats a stock purchase as an asset purchase for tax, but carries eligibility limits the F reorganization does not. The purchaser must be a corporation acquiring at least 80 percent of the target’s voting power and value within twelve months. Every shareholder of an S corporation target must join the election, including non-sellers.

Read that against the buyers you will meet. Many are LLCs, individuals, or funds holding through a partnership. An individual buyer cannot make the election. A non-corporate buyer reaches it only through a corporation or an entity taxed as one, which adds structure it may not want.

A Section 336(e) election can also produce deemed asset-sale treatment on a qualified stock disposition by S corporation shareholders without a corporate purchaser. It is seen far less often at this size, so ask your accountant rather than planning around it.

The F reorganization needs no buyer election at all. The operating entity is already disregarded for federal income tax purposes before the buyer appears. The buyer simply buys units.

Rollover is the second difference. If the buyer takes part of the units and the holding company keeps the rest, Rev. Rul. 99-5 treats the buyer as buying an undivided interest in the assets, after which both are treated as contributing them to a partnership under Section 721. The retained portion is generally not treated as sold. That is conditional, not automatic: disguised sale rules, debt-financed distributions and Section 721(b) can change it, and a rollover into the buyer’s parent is a different analysis.

Law: 26 U.S.C. 338(h)(10), 338(d)(3), 336(e); Treas. Reg. 1.338(h)(10)-1, 1.336-1; Rev. Rul. 99-5, 1999-1 C.B. 434 (Situation 1).

Does the F reorganization actually save you consents on contracts, licenses and permits?

Sometimes, and the reason is state entity law rather than tax law. A statutory conversion is a continuation of the same entity, not a transfer of assets to a different one. Under Delaware’s conversion provisions, when the conversion becomes effective the entity’s property and rights remain vested and its debts remain attached. Nothing is assigned, because nothing moves.

Conversion statutes are not uniform; elsewhere the same result may require a merger.

Delaware has addressed the related question for mergers. In Meso Scale Diagnostics, LLC v. Roche Diagnostics GmbH, the Court of Chancery held that the reverse triangular merger before it was not an assignment by operation of law of a contract of the surviving entity. It decided that on the anti-assignment wording in that agreement. Different wording can produce a different answer.

Three limits apply, each decided by a document, not by the structure:

• Change-of-control language. Many contracts bar a change in ownership or control independently of assignment. Selling all of the units is a change of control however the entity is organized.
• Licenses and permits. The issuing agency’s rules govern. A liquor license, a contractor’s license, a Medicare number or a professional license may require notice or approval on a change of ownership.
• Entity-form conditions. Some contracts, bonds and approvals are written around a named corporation. Converting to an LLC can itself be a notice event.

The F reorganization removes the mechanics of transferring assets. It does not repeal the words in your contracts, leases or licenses. Those get read one by one.

Law: 8 Del. C. 266; 6 Del. C. 18-214; Meso Scale Diagnostics, LLC v. Roche Diagnostics GmbH, 62 A.3d 62 (Del. Ch. 2013).

Will your state follow the federal treatment?

State conformity is a separate question from federal treatment and must be confirmed jurisdiction by jurisdiction. As of September 2026, Rev. Rul. 2008-18 and the QSub rules govern federal income tax. They do not decide whether your state recognizes the S election, respects a QSub, or taxes the entity at the entity level.

• S corporation and QSub recognition. Some states require their own election or filings, and states change these rules. Confirm the position for the year of your sale.
• Real property and transfer taxes. If the company owns real estate, a conversion or a transfer of a controlling interest can be taxable under state or local law, and can affect assessment.
• Franchise, excise and gross receipts taxes. These turn on entity form and entity presence. Changing a corporation into an LLC can change the calculation.

If your buyer is financing with an SBA 7(a) loan, add a fourth item. As of September 2026, SOP 50 10 8 is operative and SOP 50 10 8.1 takes effect October 1, 2026. Change-of-ownership terms, including partial changes and a seller who retains equity, are set by the version that applies to the loan. Have the lender confirm your structure in writing.

Sources: SBA SOP 50 10 8 (effective June 1, 2025); SOP 50 10 8.1 (effective October 1, 2026), SBA Information Notice 5000-880695; 13 C.F.R. 120.202.

Who pays for it, and what has to be in the letter of intent?

Cost allocation for a pre-closing F reorganization is a negotiated term, not a default rule. The work is usually done on the seller’s side, because it is the seller’s entity being restructured. Whether the buyer carries any of that cost is decided by what the letter of intent says about it, and by nothing else.

The work is real: formation and qualification filings for the holding company at home and in foreign-qualified states; the QSub election; a certificate of conversion and an operating agreement; updated banking, payroll, insurance, bonding and licensing records; and the Form 8594 allocation both sides report consistently.

The trap is agreeing to the structure without pricing it. A letter of intent promising a pre-closing F reorganization commits you to produce the restructured entity on the buyer’s timetable, with the cost allocation blank and the representations left for the purchase agreement.

What arrives with it is a set of representations warranting that the S election was validly made, has been in effect continuously, and has never terminated. How that warranty is backed varies at this deal size. It may sit inside the general escrow, or carry its own survival period and indemnity. That is negotiated, not a fixed market term.

I read the S election, the shareholder list and every transfer of shares since the election date before I agree to any language about S status, because that representation is the one a seller cannot take back.

A structure agreed in the letter of intent and priced in diligence is not a negotiation. It is a concession with a later date on it.

What should you do before you sign the letter of intent?

Pricing and sequencing the F reorganization belongs before the letter of intent is signed, not during diligence. The structure is straightforward. The exposure sits in the dates, the tax allocation, the cost allocation and the S corporation representations, and all of those are easier to fix while the buyer still wants an agreement.

• Pull the original S election and every consent, and reconstruct ownership history from the election date forward.
• Have your accountant model the allocation: what share of the price is ordinary income, and whether built-in gains exposure survives.
• Scope the reorganization as defined work on a calendar, ending in a QSub effective date immediately after the contribution.
• Get the state analysis in writing: S and QSub recognition, franchise and excise effect, transfer tax on real property.
• Have contracts, leases, licenses and permits read for change-of-control and entity-form language before committing to a closing date.
• Put the cost allocation in the letter of intent in one sentence, and keep the S corporation representations and their survival on the negotiating list.

Do that and the F reorganization is what it should be: a mechanical step that lets you sell units, keep the operating entity alive, and give the buyer the basis it needs. Do it in the middle of diligence and it becomes leverage the buyer did not have to pay for.

Stated as of September 2026. Tax law and SBA policy change; confirm the position for the year of your sale.