To sell an S corp, you pick a deal structure (asset sale or stock sale), get shareholder approval, negotiate a price and its allocation, close the deal, and file the federal and state paperwork that reports the sale and, if applicable, winds the corporation down. The structure choice drives almost everything else, because S corporations pass income through to shareholders, so the tax consequences of the sale land on your personal return rather than the company’s.1Internal Revenue Service. S Corporations
Asset Sale or Stock Sale
Every S corp sale is one or the other, and buyer and seller usually start on opposite sides.
In an asset sale, the buyer cherry-picks what they want: equipment, client lists, intellectual property, inventory, goodwill. Your corporation sells those items and receives the money. The legal entity stays with you, and so does any liability the buyer didn’t agree to take on. Buyers like this structure because they get a stepped-up basis in each asset, which means bigger depreciation deductions later. Sellers usually don’t, because the proceeds get carved up and taxed at different rates depending on the asset.
In a stock sale, shareholders transfer their shares. The buyer takes the whole entity, including its history, contracts, permits, and liabilities. Sellers prefer this because the gain is generally long-term capital gain, taxed at federal rates topping out at 20%. Buyers push back because they inherit the corporation’s existing (often low) basis in its assets and any hidden liabilities that come with the company. That tension is where most deal negotiation happens.
How an Asset Sale Is Taxed
Because the S corp is a pass-through, an asset-sale tax bill flows to you as a shareholder. The complication is that the total price splits across asset categories and each category has its own treatment.
The biggest surprise is depreciation recapture. If the corporation previously deducted depreciation on equipment, vehicles, or other business property, gain on the sale of that property is taxed as ordinary income up to the amount of depreciation you had claimed.2Office of the Law Revision Counsel. 26 U.S. Code 1245 – Gain From Dispositions of Certain Depreciable Property Only gain above that recapture amount qualifies for capital gains rates. For a business with heavily depreciated assets, recapture alone can push a substantial share of the proceeds into your top marginal bracket.
The full purchase price then has to be allocated across seven classes of assets using the IRS residual method. Buyer and seller each file Form 8594 with their income tax returns, and the two forms must match.3Internal Revenue Service. Instructions for Form 8594 (Asset Acquisition Statement Under Section 1060) The classes run from cash (Class I) through inventory (Class IV), tangible and intangible assets (Classes V and VI), and finally goodwill and going-concern value (Class VII). Any residual left after everything else is valued lands in Class VII as goodwill. Amounts allocated to goodwill are capital gain to you and are amortizable over 15 years for the buyer. That produces the built-in conflict: buyers want more in depreciable equipment for faster write-offs, sellers want more in goodwill for the lower rate.
Watch the noncompete. Buyers routinely ask for one, and anything allocated to a noncompete agreement is ordinary income to the seller. Every dollar shifted into that bucket comes out at your ordinary rate.
How a Stock Sale Is Taxed
A stock sale is cleaner. You sell the shares, and the gain between your basis and the sale price is long-term capital gain if you held the stock for more than a year. Federal long-term capital gains rates are 0%, 15%, or 20% depending on your taxable income. Most sellers with a business worth selling land in the 15% or 20% bracket.
If your modified adjusted gross income exceeds $200,000 (single) or $250,000 (married filing jointly), also plan for the 3.8% Net Investment Income Tax. Whether the gain triggers NIIT depends on how actively you participated in running the business. Active operators can often exclude the gain from net investment income; passive investors generally cannot.
The clean tax outcome comes at a negotiating cost. A buyer paying the same price for stock instead of assets loses the stepped-up basis and the depreciation deductions that follow. That’s why buyers often push for a price reduction on a stock deal, and why hybrid elections exist.
Elections That Treat a Stock Sale Like an Asset Sale
Two federal elections let you sell stock legally while treating the deal as an asset sale for tax purposes. They apply in different situations.
Section 338(h)(10)
This election requires the buyer to be a corporation (or part of a consolidated group) acquiring at least 80% of the target’s stock.4Office of the Law Revision Counsel. 26 USC 338 – Certain Stock Purchases Treated as Asset Acquisitions Both sides jointly make the election, and the IRS then treats the corporation as if it sold all its assets and liquidated. The buyer gets stepped-up asset basis; the seller reports the tax as an asset sale. If the buyer is an individual, a partnership, or an LLC, this election isn’t available.
Section 336(e)
Section 336(e) covers the situation 338(h)(10) doesn’t. It applies when shareholders sell at least 80% of the voting power and value of the target’s stock in any 12-month period and the buyer is not a corporation.5Justia Law. 26 U.S.C. 336 – Gain or Loss Recognized on Property Distributed in Complete Liquidation Because so many S corp buyers are private equity groups or individuals acquiring through LLCs, this is often the more relevant option. The selling shareholders and the target make the election; the buyer doesn’t have to sign on. The tax result is the same asset-sale treatment.
Built-In Gains Tax If You Used to Be a C Corp
If your S corp converted from a C corporation, a corporate-level built-in gains tax may apply to assets that had unrealized appreciation at the time of the conversion. It taxes recognized built-in gain during a five-year recognition period beginning on the first day of the first year as an S corporation.6Office of the Law Revision Counsel. 26 U.S. Code 1374 – Tax Imposed on Certain Built-In Gains
The corporation itself pays the tax, which reduces the net proceeds flowing through to shareholders. After the five-year window closes, it no longer applies. If you’re close to the end of that window, timing the sale to fall after it can save real money.
Splitting the Year’s Income Between You and the Buyer
In a stock sale, the corporation’s income for the year of sale has to be split between the departing shareholder and the new owner. The default federal rule assigns an equal share of each income item to each day of the year and divides that daily amount among whoever owns stock on that day.7eCFR. 26 CFR 1.1377-1 – Pro Rata Share A shareholder who sells on June 30 picks up roughly half the year’s income regardless of when it was actually earned.
That default can produce unfair splits. If most of the year’s income was earned before you closed a March 31 sale, you’d still only report about a quarter of it. To fix that, the corporation and all affected shareholders can make a terminating election that treats the year as two separate tax years split at the ownership-change date.7eCFR. 26 CFR 1.1377-1 – Pro Rata Share Each deemed year is then closed using the corporation’s normal accounting method. Every affected shareholder and the corporation must consent, so put this in the purchase agreement before closing.
Seller Financing and Installment Sales
Many S corp deals involve seller financing. If you receive at least one payment after the tax year of the sale, the transaction is an installment sale by default.8Internal Revenue Service. Publication 537 (2025), Installment Sales You recognize gain proportionally as payments come in rather than all at once, and each payment includes a return of basis, a portion of gain, and interest. You report the breakdown on Form 6252 each year you receive a payment.
Spreading gain over multiple years can keep you in lower brackets, but not everything qualifies. Depreciation recapture must be recognized in full in the year of the sale even if payment comes later. Inventory sales and dealer dispositions don’t qualify at all. If you’d rather pay all the tax upfront, you can elect out on your return for the year of sale.
Don’t Blow Up the S Election During the Sale
S corp eligibility rules are strict, and a stock sale that violates any of them terminates the election on the spot. The corporation can have no more than 100 shareholders, all of whom must be U.S. citizens or resident aliens, certain trusts, or estates. Partnerships, other corporations, and nonresident aliens cannot hold shares.1Internal Revenue Service. S Corporations Transfer a single share to an ineligible holder and the S election ends as of that date, converting the entity to a C corporation for the rest of the year.
This most often becomes a risk when a buyer plans to hold shares through a holding company, a partnership, or an LLC with corporate members. Even when the buyer is an individual at closing, the purchase agreement should include representations about continued eligibility and restrictions on later transfers. Once the S election terminates, the corporation generally can’t re-elect S status for five years.
Board and Shareholder Approval
Handshakes among owners aren’t enough. The corporation has to authorize the sale through the same governance steps it would use for any major action, and skipping them gives a disgruntled shareholder or creditor a lever to challenge the deal later.
The board meets first, reviews the terms, and passes a resolution authorizing officers to sign. That resolution goes into the corporate minutes. Then shareholders formally approve the transaction. The approval threshold depends on your articles of incorporation and bylaws. Simple majority is common; some corporations require a supermajority (often two-thirds) for events like selling substantially all assets or dissolving. Shareholders vote at a special meeting or by written consent, whichever your bylaws allow. Either way, keep the signed documents in the corporate records.
IRS Forms and Final Returns
The deal generates a stack of paperwork. The core federal forms:
- Form 8594, Asset Acquisition Statement. Required in an asset sale where goodwill or going-concern value is involved. Buyer and seller each file with their income tax returns, and the allocations must match, so agree on the numbers before closing.9Internal Revenue Service. About Form 8594, Asset Acquisition Statement Under Section 1060
- Form 966, Corporate Dissolution or Liquidation. Required if the sale leads to a complete dissolution or liquidation. File within 30 days after the board adopts the resolution or plan; file another within 30 days of any amendment.10Internal Revenue Service. Form 966 Corporate Dissolution or Liquidation
- Final Form 1120-S. If the corporation is ceasing to exist, file a final 1120-S with the “Final return” box checked, and check the “Final K-1” box on each shareholder’s Schedule K-1.11Internal Revenue Service. Instructions for Form 1120-S (2025)
- Schedule K-1. Each shareholder receives a K-1 reporting their share of income, deductions, and credits from the beginning of the tax year through the date of the sale.12Internal Revenue Service. Schedule K-1 (Form 1120-S)
On the employment side, if the business is not continuing under new ownership on the same payroll, file a final Form 941 for the quarter of the sale and a final Form 940 for federal unemployment tax for the year.13Internal Revenue Service. Instructions for Form 941 If the business continues under new ownership, both parties file a Form 941 for the transfer quarter, each reporting only the wages they paid. States generally require articles of dissolution if you’re winding the entity down and account closeouts (sales tax, unemployment insurance) if you’re not.
The transaction itself needs a purchase agreement setting price, payment terms, representations, and warranties. An asset sale also needs a bill of sale to transfer title to tangible property. Sellers should have current balance sheets, trailing twelve months of profit and loss, and documentation of outstanding debts so liens can be cleared or transferred at closing.
What the Business Is Worth
Before you list or negotiate, you need a defensible number. Buyers’ advisors typically apply at least two of three standard methods: an asset-based approach (fair market value of everything owned minus liabilities, best for equipment- or real-estate-heavy businesses), an income approach (projected future earnings discounted to present value, where the discount rate is where most fights happen), and a market approach (multiples drawn from comparable recent sales, usually with three to five years of financials behind them).
A formal valuation from a certified appraiser usually runs $2,000 to $10,000 depending on complexity. That’s money worth spending: an independent number gives you credibility in negotiations and protects you if the IRS later questions the sale price or the allocation across asset categories.
Once the returns are filed and the accounts are closed, the legal separation between you and the business is complete. If you dissolved the corporation, the final 1120-S and final K-1s end the entity’s tax life. If it survives under new ownership, your obligations end when your last K-1 reflects income only through the sale date and the employment and sales tax accounts have been properly transitioned or closed.