How to Structure Your Business for Sale: Entity Changes That Save Tax
Structure determines the tax bill before any strategy is applied to it, and most of the useful changes take years to season.
The largest single variable in the tax on a business sale is not the price, it is whether the transaction is an asset sale or an equity sale and what entity holds the assets. The same $6 million business can produce a 20 percent effective federal tax burden or something close to 40 percent depending on structure alone. Buyers prefer asset purchases because they get a stepped-up basis to depreciate; sellers prefer equity sales because gain is taxed once at capital rates. Most of the useful restructuring has a waiting period, which is why this work belongs three to five years before a transaction.
Asset Sale Versus Equity Sale
In an asset sale the buyer purchases the assets and assumes selected liabilities. The purchase price is allocated across asset classes under Section 1060, and the buyer depreciates or amortizes the stepped-up basis, with goodwill amortized over fifteen years. In an equity sale the buyer purchases stock or membership interests, inherits the historical basis, and takes the liabilities that come with the entity.
For the seller, the equity sale is generally a single capital gain. The asset sale produces a mix: ordinary income on depreciation recapture and receivables, capital gain on goodwill, and, if the seller is a C corporation, an entity-level tax before anything reaches the owner.
The gap is negotiable because it is quantifiable. A buyer's step-up has a present value, and a seller who can calculate both sides can price the structure rather than concede it. Sellers who cannot run that math tend to accept an asset sale and absorb the difference silently.
The C Corporation Double Tax
A C corporation that sells its assets pays 21 percent at the entity level, and the shareholders pay again on the distribution of the proceeds, at qualified dividend or capital gain rates plus the 3.8 percent surtax. The combined federal burden approaches 40 percent, against roughly 23.8 percent on a clean stock sale.
Two responses exist. The first is to insist on a stock sale, which is also the only way to preserve any Section 1202 exclusion the shareholders have earned. The second is personal goodwill: where the relationships, reputation, and know-how genuinely belong to the individual rather than the corporation, and no enforceable non-competition agreement transferred them to the company, a portion of the price can be paid directly to the owner and taxed once. The case law supports this on the right facts and rejects it where the owner has long been bound by a company non-compete, so the analysis has to begin with the employment documents.
S Corporations and the Built-In Gains Tax
An S corporation that was previously a C corporation is subject to a corporate level tax at 21 percent on net built-in gain recognized during the five-year period after conversion. The tax is limited to appreciation that existed at the conversion date, which makes the appraisal performed at conversion the controlling document years later.
The practical consequence is a clock. An owner who converts a C corporation to S status and sells assets in year three pays the corporate tax anyway. Converting and then waiting past the recognition period removes it. Since most sale processes take six to twelve months and most owners begin thinking about an exit two years out, the conversion decision usually has to be made before the exit is a concrete plan.
Note the tension with Section 1202. Electing S status forfeits any future qualified small business stock exclusion, while remaining a C corporation preserves it and accepts double taxation on operating income in the meantime. Which way that resolves depends on the size of the expected gain, the years remaining to a sale, and how much cash the owner takes out annually. It is a modeling question, and it is worked in our entity structuring guide.
The F Reorganization With an LLC Drop-Down
This is the standard structure in middle market S corporation sales, and it solves two problems at once.
The shareholders contribute their stock to a newly formed holding company, which elects to treat the old operating company as a qualified subchapter S subsidiary. The subsidiary then converts to a single member LLC. The whole sequence is a reorganization under Section 368(a)(1)(F), treated as a mere change in form, and the S election survives.
What it delivers: the buyer purchases LLC units and receives asset sale treatment with a full basis step-up, while the seller reports a single level of tax. It also makes rollover equity clean, so a seller who keeps 20 percent alongside a private equity buyer does so without the tax friction a direct stock sale would create. And it insulates the buyer from the risk that the S election was defective at some point in the company's history, which is one of the most common diligence findings in closely held companies.
The related mechanism in a C corporation or consolidated group context is a Section 338(h)(10) or Section 336(e) election, which treats a stock purchase as a deemed asset sale. Both require a willing seller, because the seller bears the asset sale tax profile, so the election normally comes with a gross-up in the price.
Separating Real Estate and Intellectual Property
Operating businesses that own their building should generally hold it in a separate entity, and the reasons compound at exit.
A buyer valuing the operating company at a multiple of earnings will not pay a comparable multiple for real estate, so bundling the property into the sale usually undervalues it. Holding it separately lets the seller sell the business, keep the building, and lease it back at a market rate, converting a one-time gain into a long-term income stream. If the seller does want to sell the property, holding it outside the operating entity preserves the ability to use a 1031 exchange, which is unavailable on the sale of an operating business.
Separation also protects the depreciation planning already done. A cost segregation study on a building held in a separate entity keeps producing deductions after the operating business is gone. The same structure is discussed from the operating perspective in holding company versus operating company.
Moving appreciated real estate out of a corporation immediately before a sale is a taxable distribution at fair market value, so this is a change to make early or not at all.
Purchase Price Allocation
In an asset sale, buyer and seller must allocate the price across seven asset classes on Form 8594, and the allocations must be consistent. The negotiation is genuinely adverse: the buyer wants weight on equipment and non-competition agreements for faster deductions, the seller wants weight on goodwill for capital gain treatment.
| Allocation | Seller treatment | Buyer treatment |
|---|---|---|
| Equipment | Ordinary recapture to prior depreciation | Depreciable, often fast |
| Inventory | Ordinary income | Cost of goods sold |
| Non-compete | Ordinary income | Amortized over 15 years |
| Goodwill | Capital gain | Amortized over 15 years |
| Real property | Capital gain with 1250 recapture | 27.5 or 39 year life |
Because the non-compete is ordinary to the seller and amortized over fifteen years to the buyer, it is the item both sides should be least attached to, and it is frequently oversized out of habit. A seller who understands the table above can trade allocation for price knowingly.
A Working Sequence
Ordered by how much lead time each item needs.
- Five years out. Decide the C versus S question in light of Section 1202, and complete any conversion that starts a recognition period.
- Three years out. Separate real estate and intellectual property into their own entities while values and transfer costs are lower.
- Two years out. Complete any gifting to trusts intended to multiply exclusions or freeze value, before a price is observable.
- Twelve months out. Run the F reorganization, clean up the S election history, and get the books to a quality of earnings standard.
- At the letter of intent. Model the allocation and the after-tax proceeds under each structure before agreeing to either.
Key Takeaways
- Structure moves the effective rate on a sale by fifteen points or more before any strategy applies.
- A C corporation asset sale is taxed twice; a stock sale is taxed once and preserves Section 1202.
- Built-in gains tax runs for five years after a C to S conversion, so the clock starts early.
- The F reorganization gives the buyer a basis step-up and the seller one level of tax.
- Real estate held outside the operating entity can be retained, leased back, or exchanged.
- Purchase price allocation is adversarial and quantifiable, so trade it deliberately.
Start With the Pillar Guide
Frequently Asked Questions
Should I convert my C corporation to an S corporation before selling?
Only with enough runway. The built-in gains tax applies to appreciation existing at conversion for five years afterward, so a conversion inside that window does not avoid the corporate level tax on an asset sale. It also forfeits any qualified small business stock exclusion, which for a fast-growing company can be worth more than the double tax it avoids.
Why do buyers insist on an asset sale?
Two reasons. They get a stepped-up basis to depreciate and amortize, which is worth real money in present value terms, and they avoid inheriting unknown liabilities that travel with an entity. The first is negotiable through price; the second is usually addressed through representations, indemnities, and escrow.
What is personal goodwill and can I actually claim it?
It is the portion of a business's value attributable to an individual owner's personal relationships, reputation, and expertise rather than to the company. Where the owner was never subject to an enforceable non-competition agreement with the company, courts have allowed part of the price to be paid to the owner directly and taxed once. Where such an agreement exists, the argument generally fails.
Can I move my building out of the company right before I sell?
Distributing appreciated real estate out of a corporation is treated as a sale at fair market value, triggering tax at the entity level and again on the distribution. Doing it years earlier, or holding the property in a separate entity from the start, avoids that outcome. This is the clearest example of a structural decision that cannot be fixed at closing.
How long does restructuring before a sale take?
The F reorganization itself takes weeks. The changes with waiting periods, the S conversion recognition period, gifts intended to survive valuation scrutiny, and the five-year qualified small business stock holding period, take years. A reasonable planning horizon is three to five years, and useful work is still possible at twelve months.
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